DRA821U2CGBALM

Overview

The DRA821U2CGBALM is a System-on-Chip microprocessor from the Jacinto 7 family, manufactured by Texas Instruments. It features a dual-core Arm Cortex-A72 subsystem operating at up to 2.0 GHz and four Arm Cortex-R5F real-time microcontrollers running at up to 1.0 GHz. The device includes 1 MB of shared L3 RAM with ECC and supports external LPDDR4 memory interfaces up to 3200 MT/s. Key peripherals include an integrated Ethernet TSN/AVB switch supporting two external ports, one PCIe Gen3 controller, and a USB 3.1 Gen1 dual-role device interface. It utilizes a 433-ball FCBGA package.

Feature Summary

• Dual-core Arm Cortex-A72 (up to 2.0 GHz) and four Arm Cortex-R5F MCUs (up to 1.0 GHz)
• Integrated Ethernet TSN/AVB switch with support for two external ports
• 1 MB on-chip L3 RAM with ECC and coherency support
• External Memory Interface (EMIF) supporting LPDDR4 up to 3200 MT/s

Applications

• Automotive gateway systems
• Vehicle compute platforms
• Telematics control units
• V2X/V2V communication modules
• Factory automation gateways

Procurement Notes

Verify the specific suffix 'C' against the official nomenclature table to confirm speed grade and feature set. Ensure the ordering code matches the required safety and security configurations. Confirm package availability and lead times through authorized distributors. Check for AEC-Q100 qualification requirements if automotive compliance is necessary.

Selection Notes

Select this model for applications requiring high-performance computing alongside real-time control capabilities. The DRA821U2 variant provides two external Ethernet ports, suitable for moderate connectivity needs compared to the four-port U4 version. Consider the functional safety targets (ASIL-D/SIL-3) and security features when designing safety-critical systems.

Part Context

This component belongs to the Texas Instruments Jacinto 7 processor family, designed for automotive and industrial applications. It integrates system-level MCU, functional safety, and security features to reduce system complexity. The DRA821U2 is part of the broader DRA821x series, sharing architecture with variants like the DRA821U4 but differing in peripheral counts such as Ethernet port availability.

Replacement Considerations

Direct replacements within the same package and pinout include other DRA821U2 variants with different suffixes indicating speed grades or automotive qualification. Verify software compatibility and feature enablement via the DEVICE_ID register before substitution.