AM3894BCYG120

Overview

The AM3894BCYG120 is a microprocessor from the Texas Instruments Sitara ARM family, featuring an ARM Cortex-A8 core. It operates at a maximum clock frequency of 1.2 GHz and utilizes a 32-bit data bus width. The component is housed in a PBGA-1031 package with SMD/SMT installation style. It supports operating temperatures ranging from -40°C to +105°C and requires a supply voltage between 850 mV and 1.1 V. Key memory specifications include 32 kB L1 instruction cache, 32 kB L1 data cache, 256 kB L2 cache, 64 kB data RAM, and 48 kB data ROM. It provides 64 I/O pins supporting 1.5 V, 1.8 V, and 3.3 V I/O voltages.

Feature Summary

• Integrates an ARM Cortex-A8 processor core for high-performance computing tasks
• Includes floating-point arithmetic capabilities for efficient mathematical operations
• Supports multiple communication interfaces including Ethernet, PCIe, USB, SPI, I2C, and UART
• Features integrated L1 and L2 cache memory structures for improved data access speed

Applications

• Industrial automation controllers requiring robust processing power
• Medical imaging systems utilizing digital signal processing
• Video surveillance infrastructure and network video recorders
• Advanced human-machine interface (HMI) displays

Procurement Notes

Verify the specific suffix designation against official Texas Instruments documentation to confirm exact pinout and electrical characteristics. Confirm RoHS compliance status through current manufacturer declarations. Ensure compatibility with existing PCB layout designs regarding the PBGA-1031 footprint and thermal requirements. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this component when a single-core ARM Cortex-A8 solution with integrated floating-point unit is required. Consider the 1.2 GHz performance tier relative to lower-frequency variants in the Sitara family. Evaluate the 1031-ball BGA package constraints for board space and routing complexity. Verify that the supported I/O voltage levels match the peripheral devices in the target system design.

Part Context

This microprocessor belongs to the Texas Instruments Sitara ARM series, designed for embedded applications demanding high performance and low power consumption. It shares architectural similarities with other AM38xx series processors but offers specific clock speeds and peripheral configurations tailored for industrial and medical markets. The device integrates essential connectivity options directly onto the silicon die.

Replacement Considerations

The AM3894CCYGA120 is a documented variant within the same product family. Verify functional equivalence and pin compatibility before substitution. Other models in the AM389x series may offer different clock speeds or peripheral sets.