AM1808BZCED4

Overview

The AM1808BZCED4 is an ARM926EJ-S microprocessor operating at 375 MHz with a 1.2V core voltage. It features a 32-bit RISC architecture, 16KB instruction cache, and 16KB data cache. The device includes two Programmable Real-Time Unit (PRU) cores, each with 4KB instruction RAM and 512 bytes of data RAM. On-chip memory totals 128KB SRAM, supplemented by 8KB vector table RAM and 64KB ROM. Connectivity interfaces include USB 2.0 OTG, USB 1.1 OHCI, 10/100 Mbps Ethernet MAC, SATA I/II, and multiple serial ports such as UART, SPI, I2C, McASP, and McBSP.

Feature Summary

• Integrates dual Programmable Real-Time Unit (PRU) subsystems for deterministic real-time control tasks alongside the main ARM processor.
• Provides comprehensive connectivity options including high-speed SATA storage, USB host and OTG capabilities, and 10/100 Mbps Ethernet.
• Supports flexible multimedia input/output through dedicated Video Port Interface (VPIF), Universal Parallel Port (uPP), and LCD controller.
• Features advanced direct memory access via EDMA3 with 64 independent channels to offload data movement from the CPU.

Applications

• Set Top Box
• Industrial Automation
• Building Automation

Procurement Notes

Verify the specific suffix 'CED4' against official Texas Instruments documentation to confirm package type, temperature range, and silicon revision. Ensure compatibility with existing board designs regarding pin multiplexing and power supply requirements before procurement.

Selection Notes

Select this component for applications requiring deterministic real-time processing via PRUs combined with rich OS support on an ARM9 core. Consider the integrated peripherals like SATA and Ethernet if external controllers are undesirable. Verify that the 375 MHz performance meets system latency requirements.

Part Context

This part belongs to the Texas Instruments Sitara AM1808 family of ARM-based microprocessors. It is designed for embedded applications needing a balance of processing power and peripheral integration. The device supports Linux and other robust operating systems, targeting cost-sensitive yet feature-rich consumer and industrial electronics.

Replacement Considerations

Check for AM1808 variants with different speed grades or packages. No direct cross-manufacturer replacements are officially documented in the source material.