DRA821U4TCBALMRQ1

Overview

The DRA821U4TCBALMRQ1 is a microprocessor within the Texas Instruments Jacinto 7 family, designed for automotive applications. It integrates six ARM cores: two Cortex-A72 processors and four Cortex-R5F real-time processors. The device supports a maximum clock frequency of 2 GHz and utilizes a 64-bit data bus. It features 1 MB of data RAM and provides 141 I/O pins. Key interfaces include I2C, SPI, and UART. The component operates within a temperature range of -40°C to +125°C and is housed in an FCBGA-433 package.

Feature Summary

• Six-core architecture combining dual ARM Cortex-A72 and quad ARM Cortex-R5F processors
• Maximum processing speed of 2 GHz with 64-bit data bus width
• Integrated 1 MB data RAM and 141 general-purpose I/O pins
• AEC-Q100 qualified for automotive reliability standards

Applications

• Advanced Driver Assistance Systems (ADAS)
• Automotive instrument clusters
• In-vehicle infotainment systems

Procurement Notes

Verify the specific suffix 'Q1' confirms AEC-Q100 automotive qualification status against the official datasheet. Confirm the package type is FCBGA-433 and check for moisture sensitivity labeling. Ensure the source document explicitly lists this part number as active or recommended for new designs.

Selection Notes

Select this model when a hybrid architecture requiring both high-performance computing (Cortex-A72) and deterministic real-time control (Cortex-R5F) is necessary. Verify that the required I/O count of 141 pins fits the board layout constraints of the FCBGA-433 package. Ensure the system design supports the 1.8 V operating voltage requirements.

Part Context

This component belongs to the Texas Instruments Jacinto 7 series, which targets safety-critical automotive electronics. The DRA821 variant specifically combines application processing capabilities with functional safety features provided by the redundant R5F cores, distinguishing it from non-safety-oriented processor families.

Replacement Considerations

Consult the official TI migration guide for direct pin-to-pin or software-compatible substitutes within the Jacinto 7 family. Verify that any alternative part maintains the same core configuration (2x A72, 4x R5F) and package footprint.