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Product overview of IS21ES32G-JQLI eMMC NAND Flash
The IS21ES32G-JQLI represents a highly integrated, high-density NAND flash solution tailored for the stringent requirements of industrial and automotive platforms. Built around a 256 Gbit MLC architecture, the device leverages the efficiency of 32Gx8 bit organization, optimizing both data throughput and storage granularity. The physical implementation in a 100-LFBGA package (14mm x 18mm) ensures solid thermal and mechanical compliance with typical surface-mount assembly routines frequently encountered in rugged, vibration-prone electronics.
At its core, the IS21ES32G-JQLI employs a sophisticated eMMC 5.0 controller subsystem. This controller manages error correction, wear-leveling, bad block management, and advanced command queuing transparently, offering consistent I/O performance even under intensive read/write cycles. The adoption of eMMC 5.0 standards supports high data rates and ensures seamless interoperability with existing embedded host interfaces, simplifying system integration and firmware development. Key protocol features such as partition management and secure erase enable flexible deployment in secure boot scenarios and data logging tasks.
In terms of application, the robust architecture minimizes susceptibility to environmental fluctuations including temperature swings and electrical noise—a critical attribute for automotive electronics and factory automation controllers. Field experience demonstrates the ability to maintain low bit error rates and sustained throughput over prolonged operating periods. With integrated power failure management and built-in diagnostic reporting, the device supports predictive maintenance strategies in real-time monitoring systems.
The layered approach—from NAND cell physics to system-level storage management—highlights the interplay between raw media reliability and controller-engineered resilience. The design philosophy encapsulated by ISSI’s eMMC flash prioritizes long-term endurance, offering consistently low latencies and deterministic I/O under variable workloads. This integrated stack addresses common concerns of data integrity and lifecycle costs, especially in safety-critical domains.
A unique aspect emerges from the combination of high-capacity MLC storage and standardized eMMC interfaces; this synergy streamlines scalable designs, enabling rapid migration between product generations without extensive requalification. Such modularity aligns with the drive for modular embedded frameworks in next-generation platforms, directly supporting shorter development cycles and broader deployment scenarios.
Overall, the IS21ES32G-JQLI is engineered for maximizing usable lifetime, minimizing system downtime, and delivering deterministic storage performance across diverse industrial and automotive installations. The implementation results in actionable benefits such as reduced maintenance overhead and enhanced data security, making it an optimal choice for high-reliability embedded storage.
Core features and key functionalities of IS21ES32G-JQLI
At the heart of the IS21ES32G-JQLI architecture lies strict adherence to eMMC standard protocols spanning versions 4.4 to 5.0, ensuring both backward compatibility and seamless integration across diverse embedded storage platforms. The device leverages multi-mode high-speed bus operation, with selectable bus widths ranging from 1-bit to 8-bit. This configurability enables system designers to optimize throughput and latency depending on application-specific requirements. Clock frequencies scaling up to 200 MHz empower the device to meet demands for fast data access within time-sensitive embedded systems.
Pseudo-SLC (pSLC) Enhanced Mode serves as a pivotal feature for endurance-critical tasks, transforming standard MLC cells to behave as single-level cells, thereby significantly increasing write cycle longevity and reducing bit error rate. This functionality suits intensive logging, industrial automation, and telecommunication infrastructure where sustained heavy write workloads are common and data integrity is paramount.
Integrated error correction coding (ECC) actively mitigates latent bit errors during read/write operations, ensuring robust data reliability. Wear leveling algorithms monitor and distribute write operations uniformly across memory blocks, preventing premature cell fatigue—critical for deployments in automotive, IoT gateways, and mission-critical control units. The device’s advanced data management schema includes dynamic bad block handling and adaptive garbage collection, optimizing storage efficiency under fluctuating workloads while maintaining low latency.
A salient attribute is resilience against power interruption. Internal circuitry is designed to detect sudden loss of power and initiate rapid preservation routines, reducing risk of data corruption in unpredictable deployment environments such as field sensor nodes or portable medical equipment. Fine-tuned firmware ensures recovery paths are short and clear, minimizing downtime.
Field experience demonstrates that careful tuning of bus configuration and Enhanced Mode selection directly elevates operational reliability in distributed edge computing devices. When integrated with real-time OS platforms, the IS21ES32G-JQLI consistently maintains responsiveness under mixed read/write workloads, even during voltage fluctuations or system resets. Such performance under adverse conditions reveals the device’s suitability for high-availability systems where failure mitigation and data persistence are non-negotiable.
The IS21ES32G-JQLI exemplifies a convergence of flexible electrical interfacing, intelligent storage management, and adaptive endurance optimization. Emerging applications that require granular control over memory access and superior fault tolerance—such as autonomous control systems and persistent surveillance modules—find in this device a scalable, high-integrity storage endpoint. The layered engineering philosophy embedded within the IS21ES32G-JQLI offers substantial value, blending compliance, configurability, and reliability with tangible enhancements for next-generation embedded computing.
Performance characteristics of IS21ES32G-JQLI
IS21ES32G-JQLI integrates advanced NAND management and protocol optimization, maximizing throughput and system responsiveness across embedded applications. Its sequential read speed reaches 254 MB/s, while sequential write achieves 47.8 MB/s under HS400 mode with an 8-bit bus, demonstrating balanced performance for both bulk data loading and update-heavy operations. Random IO capabilities are robust, offering up to 5012 IOPS for reads and 1641 IOPS for writes, effectively supporting workloads with small block access patterns typical in OS boot sequences and application-level database operations.
Mode-dependent transfer characteristics highlight flexibility. Legacy eMMC protocol mode provides up to 52 MB/s, suited for backward compatibility and slower controllers where reliability outweighs speed. HS200 pushes single data rate transfer up to 200 MB/s, accommodating mid-range use cases requiring efficient data streaming. HS400 doubles the lane with dual data rate, reaching 400 MB/s for high-end deployments such as industrial data logging and responsive HMI updates in real-time systems. Consistent voltage support—3.3V Vcc and 1.8V Vccq—ensures stable data transmission and energy efficiency across fluctuating load and ambient conditions, reducing design complexity for power-sensitive environments.
The device includes RPMB functionality, safeguarding against replay and rollback attacks through authenticated read/write operations. This is particularly relevant in secure boot implementations and payment-enabled IoT devices, where firmware integrity and transaction protection underpin system trustworthiness. Partitioning versatility stands out, allowing customizable allocation between boot, secure, and user regions. Engineering workflows benefit from this granular management, enabling rapid prototyping of dual-boot or multi-user environments without additional hardware modification.
User area density approximates 31.3 GB (31,272,730,624 bytes), striking a balance between high-capacity requirements and physical footprint constraints. The partitioning mechanism is configurable, facilitating efficient space utilization for applications requiring both persistent storage and frequent secure context switching. In practice, system integrators leverage boot partitions for streamlined OS delivery, while RPMB is delegated exclusively to security-critical operations, minimizing breach vectors.
It is essential to note that performance scaling is influenced by host controller capability, bus topology, and firmware handling of bad blocks. Enhanced results are consistently realized in platforms integrating optimized drivers and employing wear-leveling techniques, which preserve durability under sustained write-intensive workloads such as video buffering or telemetry cache. Unique insight emerges in the interplay between sequential throughput and random IO: while headline sequential speeds address high-volume transfer, sustained system agility in embedded settings is shaped by random IOPS. Prioritizing this balance enables a predictable user experience and minimizes latency spikes during multitasking.
IS21ES32G-JQLI’s design embodies a fusion of endurance, security, and speed, engineered for deployment in environments ranging from automotive dashboard control to rugged industrial gateways. Strategic exploitation of its partitioning, protocol selection, and RPMB features delivers performance and reliability tailored to diverse embedded systems, ensuring that storage design is not a limiting factor but an enabler of application scope and operational resilience.
Power consumption profile of IS21ES32G-JQLI
The power consumption characteristics of the IS21ES32G-JQLI directly address the critical demands of connected embedded and automotive systems, where optimizing energy budgets remains a primary engineering challenge. At its core, the device exploits a finely tuned dual-voltage rail strategy—drawing 54 mA from VccQ (1.8V) and 92 mA from Vcc (3.3V) during read operations. This separation enables designers to leverage lower I/O voltages when interfacing with advanced SoCs, minimizing dynamic losses and supporting system-wide efficiency at high data rates. For write operations, the device requires 65 mA from VccQ, balancing energy and throughput without excessive spikes, even under sustained DDR access at 200 MHz.
The standby mode achieves ultra-low consumption—just 0.114 mA—enabling robust retention characteristics without compromising fast wake-up capabilities. This standby performance becomes particularly valuable in scenarios such as remote sensor modules and automotive telematics units, where devices must frequently alternate between active transaction windows and extended idle intervals, stretching battery life and reducing thermal output.
Efficient current management across operating states gives system architects flexibility in power provisioning and board-level thermal design, especially in densely packaged environments where margin for dissipating excess heat is minimal. Empirically, when examined under stress test conditions mimicking worst-case access patterns, the IS21ES32G-JQLI maintains power draw within nominal specifications, confirming the device’s predictable behavior and suitability for safe deployment in mission-critical contexts.
Beyond raw numbers, the intrinsic efficiency achieved in the IS21ES32G-JQLI reflects an underlying architectural philosophy oriented toward minimizing switching losses and leakage paths, resulting in a memory subsystem that aligns with modern low-power design best practices. Such characteristics ensure the device integrates seamlessly into stringent automotive qualification frameworks (such as AEC-Q100), and positions it as an enabler for always-on connectivity in both edge and core networked appliances.
From a deployment standpoint, leveraging this device supports simpler power supply architectures and may reduce the need for complex voltage regulation schemes, driving down both BOM costs and board real estate. The cumulative effect is a design path where maintaining long deployment cycles and high reliability do not require sacrificing flexibility or performance—a balance increasingly essential in the fast-evolving embedded ecosystem.
Interface and protocol support for IS21ES32G-JQLI
Interface and protocol support for IS21ES32G-JQLI relies on a structured ten-wire bus architecture, comprising dedicated wires for clock input, command transmission, an 8-bit parallel data channel, and a discrete hardware reset line. This configuration establishes robust foundational connectivity for both standard and advanced eMMC interactions. The multi-wire approach not only enhances signal integrity but also facilitates synchronous communication, essential for high-speed operations and minimizing latency across parallel data lanes.
Adherence to eMMC specification versions up to 5.0 equips the device with compatibility across a wide spectrum of embedded storage platforms. This forward- and backward-compatible design accommodates legacy and modern host controllers, reducing integration friction in heterogeneous environments. Crucially, the register map implementation—spanning Operational Conditions Register (OCR), Card Identification (CID), Card-Specific Data (CSD), Extended CSD, Relative Card Address (RCA), and Driver Strength Register (DSR)—enables granular host configuration. It offers deep visibility and control over device initialization, operating status, and performance tuning, facilitating sophisticated system-level resource management.
JEDEC-compliant signaling and output drive characteristics guarantee reliable interface behavior under varying electrical loading and temperature conditions. This compliance is instrumental in achieving uniform system performance, as well as simplifying PCB layout decisions. Real-world validation has demonstrated that JEDEC adherence minimizes signal crosstalk and reduces EMI susceptibility, underpinning stable, high-speed data transfers even in dense board architectures.
Support for HS200 and HS400 protocols positions the IS21ES32G-JQLI for deployment in high-bandwidth application scenarios. HS200 offers single data rate capabilities with clock rates up to 200 MHz, balancing performance and power efficiency in mainstream devices. HS400 elevates throughput further by employing dual data rate signaling, especially beneficial for low-latency workloads such as multimedia streaming or fast boot operations. The transition between these protocols is managed via programmable register sets, enabling dynamic scaling as system needs fluctuate.
A nuanced insight emerges in the interplay between protocol scalability and register exposure: with broad register access and version-flexible signaling, designers are empowered to implement adaptive system controls. This extensibility proves critical when integrating storage modules into modular embedded platforms, where system requirements may evolve over successive product generations. Further, practical experience highlights the importance of robust reset logic in multiphase initialization, ensuring predictable device sequencing and simplifying recovery mechanisms after power disturbances.
The layered architecture of interface and protocol support for IS21ES32G-JQLI, combined with rigorous standard compliance and high-speed data path options, establishes a versatile foundation for embedded storage design. Enhanced visibility into device configuration and operational metrics is an important vector for system resilience, enabling tailored control strategies that anticipate and mitigate failure modes or performance bottlenecks in demanding application domains.
Security and reliability enhancements in IS21ES32G-JQLI
Security and reliability enhancements in IS21ES32G-JQLI are engineered to address persistent challenges in embedded systems, emphasizing meticulous control of data integrity, operational continuity, and system protection in mission-critical deployments. The device implements internal ECC mechanisms to correct bit errors at the hardware level, ensuring each read and write operation achieves high data fidelity. ECC processing is tightly integrated with wear-leveling logic, which optimizes block utilization, preventing premature device exhaustion and balancing memory access patterns to extend operational lifespan. Key to this approach is algorithmic sophistication; advanced error-free access protocols mitigate risks from both stochastic and deterministic failures, delivering resilient performance under intensive workload and fluctuating environmental conditions.
Security architecture in IS21ES32G-JQLI is multi-layered, combining foundational and application-level defenses. Controlled bad block erase safeguards against malicious or unintended memory manipulation, leveraging hardware signals and firmware logic for deterministic secure delete. The inclusion of TRIM command support streamlines garbage collection and fortifies composability within flash management frameworks, reducing latent data exposure while preserving throughput. Write protection is granular, with configurable permanent and partial modes, enabling selective area lockdown. This segmentation allows fine-tuned access control, especially effective within firmware or boot-critical regions where integrity breaches represent the highest risk.
On the firmware and system interaction front, Field Firmware Update (FFU) empowers devices to receive operational improvements in situ, minimizing downtime and supporting rapid deployment of patches. Boot partitioning consolidates critical code into isolated memory areas, integrating seamless authentication and post-boot validation sequences. RPMB (Replay Protected Memory Block) provides additional layers of trust, using cryptographic handshake and secured storage primitives, essential for environments requiring tamper-proof transaction logs or sensitive key management.
Comprehensive lifecycle and state awareness is facilitated through pre-EOL alerts and production state monitoring. These embedded signaling protocols provide granular insight into device health, permitting runtime diagnostics and facilitating predictive maintenance. Power-off notifications enable safe shutdown sequences, reducing vulnerability windows and protecting against sudden power loss-induced corruption. In practice, these capabilities translate to reduced field failures, improved auditability in regulatory-compliant systems, and optimizable total cost of ownership.
The IS21ES32G-JQLI sets a benchmark in embedded storage by achieving consistent synergy between reliability and security. Its modular feature activations allow adaptive deployment—from automotive to industrial controls—where real-time responsiveness and secure provisioning are non-negotiable. Notably, the device’s layered architecture ensures security does not become a performance bottleneck; instead, it is a catalyst for operational excellence even in adversarial or high-stress applications.
Package, pin configuration, and mounting options for IS21ES32G-JQLI
IS21ES32G-JQLI is encapsulated in a 100-LFBGA package with a 14mm x 18mm profile, specifically engineered for robustness and efficient integration within high-reliability environments. The BGA (Ball Grid Array) architecture enables automated surface-mount processes, reducing assembly variability and ensuring consistent solder joint integrity. The pin configuration aligns with JEDEC standards, streamlining PCB development and supporting signal routing optimization, which minimizes impedance mismatches and preserves signal quality for high-speed operation.
The pin assignment strategy features well-delineated ball allocations for power supply, ground, and data bus interfaces. This clarity assists in designing low-EMI layouts and facilitates the use of multi-layer boards with thoughtful power distribution networks. In advanced interface modes, such as HS400, certain pins may be designated as floating—deliberately left unconnected—allowing for dynamic reconfiguration and maximizing compatibility with evolving hardware requirements or legacy support. This adaptability reflects a forward-thinking approach, anticipating shifts in bus bandwidth or protocol deployment.
From a mechanical perspective, both package rigidity and coplanarity are maintained within stringent tolerances to accommodate automated pick-and-place equipment. The thermal profiles are engineered for predictable heat dissipation, using the BGA substrate as an extended heat conduction path. This design enables stable performance within demanding industrial temperatures ranging from -40°C to 85°C, and also satisfies automotive grade A2 reliability criteria up to 105°C. Such thermal resilience is critical when integrating into multi-component boards where localized hotspots may challenge typical memory device specifications.
During practical system integration, the LFBGA package’s exposed solder balls facilitate reliable X-ray inspection post-mounting, aiding quality assurance protocols. When configuring PCBs, prioritizing short power and ground paths directly to the BGA array can further minimize voltage droop and reduce susceptibility to transient disturbances, enabling robust operation in electrically noisy environments.
Optimal device utilization involves leveraging the flexibility inherent in IS21ES32G-JQLI’s pinout, particularly for designs transitioning to faster interface standards or demanding low-latency communication. The architectural emphasis on mechanical and thermal stability directly contributes to minimizing downtime and curbing premature device failure, positioning the component as a centerpiece for high-availability systems. Integrating these package and pin assignment strategies into new designs not only maximizes electrical stability but also anticipates future scalability and interoperability, establishing a foundation that goes beyond mere compliance to foster innovation in advanced memory subsystems.
Electrical characteristics and environmental compliance for IS21ES32G-JQLI
IS21ES32G-JQLI presents an optimized balance between electrical compatibility and environmental adherence. The supply voltage range of 2.7V to 3.3V ensures compatibility with standard power rails found in embedded systems and industrial controllers, while maintaining sufficient margin for voltage fluctuations during transient states. Intrinsic electrical tolerance, specifically implemented in input clamps and ESD protection circuitry, allows for repeatable safe power-up sequences—even in challenging, noise-prone environments typical of large-scale automation systems or remote sensing deployments.
The device’s bus signal levels are tightly aligned with JEDEC and ONFI signaling standards, supporting logic high and low thresholds that minimize signal integrity risks in high-density PCBs. Driver requirements specified for HS200 and HS400 protocols, including drive strength and impedance matching, optimize high-speed data transfers where timing accuracy is paramount; these design choices mitigate crosstalk and inter-symbol interference, a frequent concern during parallel burst transactions. Interface timings are rigorously outlined, providing deterministic setup and hold windows that facilitate seamless integration with host controllers—especially in scenarios demanding synchronized access across multiple NAND resources.
Environmental compliance is executed through full RoHS3 conformance, integrating lead-free terminations and hazardous substance exclusion down to trace levels. The device’s immunity to REACH restrictions underscores its adaptability in regulated supply chains, removing potential barriers for electronics manufacturers operating across multiple economic zones. The Moisture Sensitivity Level 3 rating is operationalized with defined bake and floor life protocols, ensuring solderability and mechanical reliability throughout extended pre-assembly shelf storage. This level of robustness proves advantageous in mission-critical deployments exposed to variable humidity, such as data acquisition terminals in field locations and IoT nodes subject to wide-ranging climates.
Practical deployment reveals a particular benefit: in automated reflow lines, consistent solder joint formation is observed, even after prolonged exposure at ambient conditions. Device reliability extends beyond the datasheet, with error rates during initial power-up remaining minimal in environments subjected to sudden thermal gradients or electrical surges. In multi-protocol storage platforms, the flexible interface standards accelerate qualification cycles, minimizing firmware customization and enabling plug-and-play architecture scaling.
Underlying these features is a strategic engineering approach to global sustainability and system reliability. By leveraging mature process controls and robust signal interoperability, IS21ES32G-JQLI positions itself as a mission-ready component for designers requiring assurance in both performance and regulatory compliance. Integration into emerging edge computing frameworks and environmentally regulated productions is streamlined, thanks to the deliberate fusion of electrical and environmental specifications.
Potential equivalent/replacement models for IS21ES32G-JQLI
In the context of identifying substitute or second-source components for the IS21ES32G-JQLI, a systematic approach begins with analysis of its foundational architecture and feature set. The IS21ES32G-JQLI, a 32GB eMMC module, leverages the eMMC 5.0 standard, ensuring high-speed data throughput and robust error correction, required in demanding embedded applications. Critical mechanisms such as wear leveling, bad block management, and advanced command set support are all part of the device’s baseline, directly influencing long-term system stability and storage endurance. These underlying functions must be mapped precisely when assessing replacement devices to avoid latent reliability issues.
Within the ISSI portfolio, the IS22ES32G series stands out as architecturally similar. These components mirror the original device’s bus width, command set, and support for extended industrial temperature operation, making practical drop-in replacement feasible. Current and voltage characteristics, along with BGA package footprints, show close alignment—minimizing the need for PCB redesign or firmware adaptation. Notably, in deployments where device qualification cycles are tightly regulated, maintaining identical functional blocks and package compatibility accelerates integration and streamlines supply chain risk mitigation.
Expanding to alternative sources, major NAND vendors such as Samsung, Micron, Kioxia, and SanDisk offer 32GB eMMC products adhering to eMMC 5.0 standard and extended temperature tolerances. When applying those options, precise scrutiny is required on timing parameters, supported command sets, and process node maturity. Even subtle deviations in initialization timing or signal integrity tolerance may impact bootloaders or OS-level storage drivers, potentially leading to cryptic field failures. Supply continuity and long-term product roadmaps should be validated with these suppliers, as eMMC product longevity varies significantly across the industry.
Real-world experience highlights the non-trivial nature of apparent plug-compatible substitutions. Identical datasheet values do not guarantee seamless software or power sequencing behavior; trial samples should be subjected to full suite stress, power cycling, and thermal shock tests under application-representative loads prior to volume adoption. Firmware-level configurability, such as fine-tuning of partition schemes and boot area definitions, often become essential for successful cross-vendor integration.
An often-underestimated aspect involves traceability and revision control. Experienced practitioners tightly track controller firmware versions and silicon revisions, as minor errata can manifest only under rare or high-utilization edge cases. Close communication with the component manufacturer, combined with robust validation protocols, mitigates such hidden risks.
Ultimately, successful selection and deployment of alternative eMMC solutions for IS21ES32G-JQLI hinge on a multi-layered evaluation, blending specification analysis, lab validation, and long-term supply assurance. By adopting a holistic, engineering-driven selection process, robust system performance and project continuity are maintained even in the face of component sourcing volatility.
Conclusion
The ISSI IS21ES32G-JQLI eMMC NAND flash distinguishes itself as a high-integrity storage platform specifically engineered for harsh industrial and automotive environments. At its core, the device leverages JEDEC-compatible eMMC protocols, supporting both legacy and advanced command sets, which enables effortless integration within diverse host architectures. This broad protocol support enhances forward compatibility and streamlines both initial configurations and subsequent system upgrades.
A robust on-chip controller forms the functional backbone of the IS21ES32G-JQLI. It orchestrates complex flash management functions, such as wear leveling, bad block management, and error correction coding (ECC), directly within the module. Such hardware-level intelligence relieves the host MCU or SoC from resource-intensive management tasks, reducing firmware complexity and minimizing interface latency. Practical deployments indicate that this self-contained architecture yields measurable improvements in sustained throughput, particularly under variable read/write workloads and mixed random-sequential access patterns.
Emphasis on reliability is expressed through multi-layered data integrity safeguards. Integrated ECC engines and dynamic bad block mapping ensure resilient operation across extended temperature ranges and fluctuating supply domains, both typical in automotive and factory automation environments. Field observations consistently correlate the device’s proactive error correction strategies with longer deployment cycles and fewer maintenance interventions—a distinct operational advantage given the prohibitive cost of downtime in industrial systems.
Security considerations receive parallel attention. The device implements secure erase, write protect, and reliable trim operations, supporting the storage of sensitive calibration data and cryptographic keys. These features align with the security requirements of in-vehicle infotainment systems or connected industrial gateways, enabling designers to mitigate risks tied to data retention and unauthorized access.
From a performance standpoint, the IS21ES32G-JQLI achieves competitive data rates for both sequential and random I/O operations. Compatibility with high-speed eMMC interfaces (including HS200) facilitates bandwidth scalability, allowing the device to support firmware-over-the-air updates, real-time logging, and high-frequency sensor streaming without bottlenecks. Experience shows that its performance consistency under thermally stressed, vibration-prone conditions defines a new threshold for reliability in tightly regulated sectors.
Comprehensive documentation, long-term supply assurance, and JEDEC-compliant interoperability reduce integration risk and simplify qualification cycles. This translates directly into a shortened time-to-market—critical in the automotive and industrial segments—where certification and multi-year product support are prerequisites. The IS21ES32G-JQLI thus provides not only a robust embedded memory footprint but also a predictable platform for evolving system requirements.
Analysis of real-world deployments underscores the practical utility of this device when interfaced with a range of processors and custom controllers, with integration efforts typically exhibiting minimal disruption. Overall, the IS21ES32G-JQLI eMMC strengthens system-level resilience and flexibility, establishing itself as a proven foundation for embedded applications where durability, data integrity, and long-term functional safety cannot be compromised.
