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AM3703CUS
Texas Instruments
IC MPU SITARA 800MHZ 423FCBGA
3574 Pcs New Original In Stock
ARM® Cortex®-A8 Microprocessor IC Sitara™ 1 Core, 32-Bit 800MHz 423-FCBGA (16x16)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (485 Ratings)
AM3703CUS
Product Overview
1238702
DiGi Electronics Part Number
AM3703CUS-DGManufacturer
Texas Instruments
AM3703CUS
Description
IC MPU SITARA 800MHZ 423FCBGAInventory
3574 Pcs New Original In Stock
ARM® Cortex®-A8 Microprocessor IC Sitara™ 1 Core, 32-Bit 800MHz 423-FCBGA (16x16)
Quantity
Minimum 1
Minimum 1
Purchase and inquiry
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AM3703CUS Technical Specifications
Category
Embedded, Microprocessors
Packaging
Tray
Series
Sitara™
Product Status
Active
Core Processor
ARM® Cortex®-A8
Number of Cores/Bus Width
1 Core, 32-Bit
Speed
800MHz
Co-Processors/DSP
Multimedia; NEON™ SIMD
RAM Controllers
SDRAM
Graphics Acceleration
No
Display & Interface Controllers
LCD
Ethernet
-
SATA
-
USB
USB 2.0 (4)
Voltage - I/O
1.8V
Operating Temperature
0°C ~ 90°C (TJ)
Security Features
-
Mounting Type
Surface Mount
Package / Case
423-LFBGA, FCBGA
Supplier Device Package
423-FCBGA (16x16)
Additional Interfaces
HDQ/1-Wire, I2C, McBSP, McSPI, MMC/SD/SDIO, UART
Base Product Number
AM3703
Datasheet & Documents
Manufacturer Product Page
AM3703CUS Specifications
HTML Datasheet
AM3703CUS-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
REACH Status
REACH Unaffected
ECCN
5A992C
HTSUS
8542.31.0001
Additional Information
Other Names
-AM3703CUSNEST
2156-AM3703CUS
296-28405
-296-28405-DG
TEXTISAM3703CUS
AM3703CUS-DG
-AM3703CUSNEST-NDR
Standard Package
90
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Customer support staff were friendly and attentive, helping me with my concerns effectively.
de desembre 02, 2025
The prices at DiGi Electronics are very competitive, providing great value for money.
de desembre 02, 2025
Since partnering with DiGi Electronics, we've experienced fewer operational interruptions thanks to their reliable offerings.
de desembre 02, 2025
Reliability in product performance is a hallmark of DiGi Electronics, making them my preferred supplier.
de desembre 02, 2025
Shipping is always timely, and their support makes everything easy.
de desembre 02, 2025
I am consistently impressed with the durability of their products.
de desembre 02, 2025
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de desembre 02, 2025
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Frequently Asked Questions (FAQ)
What are the key thermal and layout design risks when integrating the AM3703CUS into a compact industrial control board, and how can I mitigate them?
The AM3703CUS, with its 423-FCBGA package and 800MHz Cortex-A8 core, generates significant heat under sustained load—especially when leveraging NEON SIMD or multimedia co-processors. In compact designs, inadequate thermal vias, poor PCB copper pour, or insufficient airflow can push junction temperatures beyond the 90°C limit, risking thermal throttling or long-term reliability issues. To mitigate this, use a solid ground plane beneath the BGA, implement an array of thermal vias (≥100 vias under the package), and consider a small heatsink if enclosure airflow is restricted. Always validate thermal performance with infrared imaging during prototype testing under worst-case workloads.
Can I replace the AM3703CUS with the AM3358BZCEA80 in an existing Sitara-based design without major firmware or hardware changes?
While both the AM3703CUS and AM3358BZCEA80 are TI Sitara MPUs based on ARM Cortex-A8, direct replacement is not recommended without thorough validation. The AM3703CUS supports up to 4x USB 2.0 interfaces and includes an integrated LCD controller, whereas the AM3358 lacks native LCD support and has only 1x USB 2.0 OTG. Additionally, the AM3358 uses a different pinout (NFBGA vs. FCBGA), memory controller (DDR2/LPDDR vs. SDRAM), and boot modes. Firmware would require significant adaptation for peripheral mapping, clocking, and power management. Only consider this swap if your application doesn’t rely on LCD or multiple USB hosts and you're prepared for a full re-spin of hardware and software.
How should I handle power sequencing and I/O voltage compatibility when designing a system with the AM3703CUS operating at 1.8V I/O levels?
The AM3703CUS requires strict adherence to power-up sequencing: core voltage (typically 1.2V) must stabilize before or simultaneously with I/O banks (1.8V), and all supplies must reach valid levels within 50ms to avoid latch-up or undefined behavior. Since its I/Os are fixed at 1.8V, interfacing with 3.3V peripherals (e.g., legacy sensors or UART devices) requires level translation—use bidirectional voltage translators like the TXS0108E. Avoid direct connection, as 3.3V signals may exceed the absolute maximum ratings and damage the I/O pads. Always include power-good monitoring and sequencing ICs (e.g., TPS3808) to enforce correct startup order and prevent brownout-induced corruption during boot.
What are the real-world reliability concerns with the AM3703CUS in high-vibration automotive or industrial environments, and how does MSL 3 impact assembly?
The AM3703CUS’s 423-FCBGA package is susceptible to solder joint fatigue under prolonged vibration or thermal cycling, especially in automotive under-hood or factory automation settings. Although it's rated for 0°C to 90°C junction temperature, mechanical stress can accelerate failure at BGA corners. Additionally, its Moisture Sensitivity Level (MSL) of 3 means the device can only be exposed to ambient conditions for 168 hours before reflow—exceeding this requires dry baking per J-STD-033. To enhance reliability, use underfill epoxy after assembly, select high-Tg PCB materials, and avoid mounting near high-vibration sources. Always bake trays if storage exceeds floor life, and consider conformal coating for moisture-prone environments.
Is the AM3703CUS suitable for real-time control applications requiring deterministic response, and how does its lack of DSP acceleration affect performance compared to alternatives like the AM3715?
The AM3703CUS, while capable of running real-time Linux or RTOS environments, lacks a dedicated DSP subsystem—unlike the AM3715, which includes an IVA 2+ multimedia accelerator and is better suited for signal-heavy tasks. For hard real-time control (e.g., motor control or PLC logic), the Cortex-A8’s interrupt latency and OS scheduling jitter may introduce microsecond-level uncertainties. If your application demands sub-100µs response times, consider pairing the AM3703CUS with an external C2000 MCU for time-critical loops. Alternatively, evaluate the AM3715 if multimedia processing is needed, but note it increases cost and power. For pure control tasks, the AM3703CUS is adequate only if paired with a real-time kernel and careful peripheral prioritization via PRU-like co-processors (which it lacks)—making external timing validation essential.
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AM3703CUS CAD Models
Texas Instruments AM3703CUS PCB symbols & footprints
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