AM1808EZCEA3

Overview

The AM1808EZCEA3 is a low-power applications processor based on the ARM926EJ-S core, operating at 456 MHz with a 1.3V supply voltage. It features a 32-bit RISC architecture with 16KB instruction and data caches, 8KB RAM for the vector table, and 64KB ROM. The device integrates two external memory interfaces (EMIFA and DDR2/mDDR controller), a 10/100 Mb/s Ethernet MAC, USB 2.0 OTG, SATA, and a Programmable Real-Time Unit Subsystem. It is housed in a 361-ball PBGA package.

Feature Summary

• Integrates a high-performance ARM926EJ-S RISC core with hardware-assisted native command queuing support via the SATA controller.
• Includes a dedicated Programmable Real-Time Unit Subsystem with two independent PRU cores for deterministic control tasks.
• Provides extensive connectivity through an integrated 10/100 Ethernet MAC, USB 2.0 OTG, and Universal Parallel Port.
• Supports flexible video input/output via the Video Port Interface and multimedia storage through MMC/SD card interfaces.

Applications

• Industrial automation controllers requiring real-time processing
• Smart home gateways and IoT hubs
• Medical imaging devices and diagnostic equipment
• Point-of-sale terminals and digital signage

Procurement Notes

Verify the specific suffix 'A3' against official Texas Instruments documentation to confirm it denotes the commercial temperature grade variant within the AM1808 family. Ensure that the ordering information matches the exact pinout and electrical specifications required for your PCB design, as variations exist across the series.

Selection Notes

Select this component when a balance of processing power and peripheral integration is needed for embedded Linux or RTOS environments. Consider the 456 MHz performance level and the availability of the DDR2 interface for high-bandwidth memory requirements. Evaluate the thermal characteristics of the PBGA package for your enclosure constraints.

Part Context

This microprocessor belongs to the Texas Instruments Sitara AM1808 family, designed for cost-sensitive, low-power applications. It serves as a bridge between simple microcontrollers and complex application processors, offering rich I/O capabilities without the complexity of a full system-on-chip solution.

Replacement Considerations

Check for AM1808EZCE4 or AM1808EZWTD4 if different packaging pitches or temperature grades are required. Verify software compatibility and pin multiplexing differences before substituting other members of the AM1808 series.

FAQ

Does the AM1808 support Java execution?

Yes, the ARM926EJ-S core includes ARM Jazelle Technology, which allows for efficient execution of Java byte codes similar to a Just-in-Time interpreter.

What is the maximum address space for the DDR2 controller?

The DDR2/Mobile DDR memory controller supports a 16-bit bus with up to 512 MB of address space.