AM6546BACDXA

Overview

The AM6546BACDXA is a Sitara processor featuring four Arm Cortex-A53 cores and dual Arm Cortex-R5F cores. It operates at up to 1.1 GHz for the A53 cluster and 400 MHz for the R5F subsystem. The device utilizes a 784-pin FCBGA package with dimensions of 23 mm by 23 mm. It includes integrated PowerVR SGX544-MP1 graphics acceleration, three PRU_ICSSG industrial communication subsystems, and supports DDR4 memory interfaces.

Feature Summary

• Integrates three Gigabit Industrial Communication Subsystems (PRU_ICSSG) supporting multiple industrial Ethernet protocols
• Includes functional safety features such as ECC on critical memories and lockstep support for the Cortex-R5F subsystem
• Provides hardware cryptographic acceleration including AES, SHA, and PKA for secure boot and data protection
• Features a Device Management Security Controller (DMSC) for centralized system management and power control

Applications

• Industrial Programmable Logic Controllers (PLC)
• Factory automation with safety functions
• Multi-protocol fieldbus communications
• Industrial PC
• Human Machine Interface (HMI)

Procurement Notes

Verify the specific silicon revision and ordering suffix against the manufacturer's current datasheet before procurement. Confirm that the required functional safety documentation and software development tools are available for the target operating system. Ensure the design accommodates the specified thermal resistance characteristics and voltage requirements for the 784-pin FCBGA package.

Selection Notes

Select this component when high-performance processing combined with deterministic industrial connectivity is required. The quad-core A53 configuration supports complex Linux or RTOS environments, while the dual R5F cores handle time-critical tasks. Verify compatibility with DDR4 memory controllers and ensure the application leverages the integrated PRU_ICSSG for real-time protocol handling.

Part Context

This part belongs to the Texas Instruments Sitara AM654x family, designed for Industry 4.0 embedded products. It shares the same package and core architecture with the AM6548 but differs in peripheral availability and feature support. The AM6546 provides a balance of processing power and industrial interface density for robust control applications.

Replacement Considerations

AM6548BACDXA

FAQ

Does the AM6546 support DDR3L or LPDDR4 memory?

No, the AM6546 only supports DDR4 memory types up to DDR-1600. DDR3L and LPDDR4 are not supported.

What is the maximum clock speed for the Arm Cortex-R5F cores?

The dual-core Arm Cortex-R5F microprocessor subsystem operates at up to 400 MHz.