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DM870A-AQE
Microchip Technology
IC MPU 240MHZ 320LFBGA
5064 Pcs New Original In Stock
ARM926EJ Microprocessor IC - 1 Core, 32-Bit 240MHz 320-LFBGA (13x13)
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*Quantity
Minimum 1
Minimum 1
5.0 / 5.0
- (495 Ratings)
DM870A-AQE
Product Overview
1279230
DiGi Electronics Part Number
DM870A-AQE-DGManufacturer
Microchip Technology
DM870A-AQE
Description
IC MPU 240MHZ 320LFBGAInventory
5064 Pcs New Original In Stock
ARM926EJ Microprocessor IC - 1 Core, 32-Bit 240MHz 320-LFBGA (13x13)
Quantity
Minimum 1
Minimum 1
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DM870A-AQE Technical Specifications
Category
Embedded, Microprocessors
Packaging
-
Series
-
Product Status
Obsolete
Core Processor
ARM926EJ
Number of Cores/Bus Width
1 Core, 32-Bit
Speed
240MHz
Co-Processors/DSP
Multimedia: Audio Engine, Security; Real Time Secure
RAM Controllers
SDRAM, SRAM
Graphics Acceleration
Yes
Display & Interface Controllers
LCD
Ethernet
10/100Mbps
SATA
-
USB
USB 2.0 OTG (1)
Voltage - I/O
-
Operating Temperature
-
Security Features
-
Mounting Type
Surface Mount
Package / Case
320-LFBGA
Supplier Device Package
320-LFBGA (13x13)
Additional Interfaces
GPIO, MMC/SD/SDIO, PCMCIA, SPI, UART
Datasheet & Documents
HTML Datasheet
DM870A-AQE-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
3 (168 Hours)
ECCN
OBSOLETE
HTSUS
0000.00.0000
Additional Information
Standard Package
1
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
Excellent prices and prompt delivery are the reasons I prefer shopping here.
de desembre 02, 2025
Very satisfied with their prompt after-sales assistance and smooth delivery process.
de desembre 02, 2025
Tracking updates were frequent, making me feel well-informed.
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Frequently Asked Questions (FAQ)
What are the key design-in risks when using the DM870A-AQE in a new embedded system given its obsolete status from Microchip Technology?
Using the DM870A-AQE in new designs carries significant long-term risks due to its obsolete status. While 4989 units are in stock, future supply is not guaranteed, which can jeopardize product lifecycle and scalability. Designers should assess end-product volume and lifespan requirements carefully. For long-term reliability and support, consider migrating to active Microchip processors like the AT91SAM9G25, which offers similar ARM926EJ-S core performance at 400MHz with enhanced peripherals. If using DM870A-AQE, secure sufficient stock early and verify availability through authorized distributors to mitigate production disruptions.
How does the integrated LCD controller in the DM870A-AQE impact design complexity for industrial display applications?
The DM870A-AQE's integrated LCD controller reduces external component count and simplifies interface design for monochrome or color TFT displays up to typical resolutions supported by the processor (e.g., 640x480). However, designers must verify timing compatibility with the specific panel, as improper configuration can lead to flickering or data corruption. Use the DMA-driven framebuffer to offload the CPU, but validate power sequencing to prevent latch-up during cold starts. For rugged environments, include ESD protection on display lines and ensure clock jitter remains below 5% to maintain signal integrity.
Can the DM870A-AQE replace NXP’s LPC3250 in legacy medical device upgrades, and what integration challenges should be expected?
While both the DM870A-AQE and LPC3250 use the ARM926EJ-S core, direct replacement requires careful analysis. The DM870A-AQE lacks the LPC3250’s dedicated motor control PWM and has different peripheral mapping on GPIO and MMC/SDIO. Clock tree design differs significantly—DM870A-AQE relies on external oscillators rather than integrated PLL schemes. Pin compatibility is poor due to 320-LFBGA layout differences. Migration demands PCB redesign and driver refactoring, especially for USB OTG and PCMCIA. Validate real-time response under load, as the DM870A-AQE’s bus arbitration may introduce latency absent in the original design.
What are the thermal and electrical reliability concerns when operating the DM870A-AQE near its maximum 240MHz clock rate in enclosed environments?
Running the DM870A-AQE at 240MHz in sealed enclosures risks thermal throttling and long-term degradation without adequate heat dissipation. The 13x13mm LFBGA package has limited thermal pad exposure; ensure a solid thermal via array under the exposed pad connected to internal ground planes. Maintain junction temperature below 100°C by using forced airflow or conformal coating with thermally conductive potting. Monitor voltage ripple on core supplies—exceeding ±3% on VDDCORE can cause erratic behavior. Decouple power pins with 100nF X7R capacitors within 2mm of each pair to suppress high-frequency noise.
How does the absence of SATA but presence of PCMCIA and MMC/SDIO in the DM870A-AQE affect storage architecture decisions in ruggedized field devices?
The DM870A-AQE supports PCMCIA and MMC/SDIO instead of SATA, limiting direct attachment of 2.5" HDDs. For rugged applications, this favors solid-state storage via SD cards or compact flash (CF) in PCMCIA mode, which are more vibration-resistant. However, wear leveling and file system corruption risks increase with frequent writes. Use a managed NAND solution with FTL-aware drivers and implement journaling file systems like JFFS2 or YAFFS. Isolate SDIO lines with series resistors to damp ringing, and enforce power-loss-safe updates via write buffering and backup power hold-up to prevent corruption during unexpected shutdowns.
Quality Assurance (QC)
DiGi ensures the quality and authenticity of every electronic component through professional inspections and batch sampling, guaranteeing reliable sourcing, stable performance, and compliance with technical specifications, helping customers reduce supply chain risks and confidently use components in production.
DM870A-AQE CAD Models
Microchip Technology DM870A-AQE PCB symbols & footprints
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