AM4378BZDNA80

Overview

The AM4378BZDNA80 is a microprocessor from the Texas Instruments Sitara AM437x series, featuring an ARM Cortex-A9 core with a maximum clock frequency of 800 MHz. It utilizes a BGA-491 package and supports SMD/SMT mounting. The device operates within a temperature range of -40°C to +105°C and requires a 1.26 V supply voltage. Key specifications include 32-bit data bus width, 32 kB L1 instruction and data caches, 64 kB data RAM, and 256 kB data ROM. It integrates interfaces such as CAN, Ethernet, I2C, SPI, UART, and USB, supporting multiple I/O voltages including 1.2 V, 1.35 V, 1.5 V, 1.8 V, and 3.3 V.

Feature Summary

• Integrates a single-core ARM Cortex-A9 processor for efficient computing tasks.
• Includes Programmable Real-Time Unit and Industrial Communication Subsystem (PRU-ICS) for deterministic real-time control.
• Supports floating-point operations via the integrated processor architecture.

Applications

• Industrial automation controllers
• Human-machine interface (HMI) displays
• Smart energy management systems

Procurement Notes

Verify the specific suffix DNA80 against the official Texas Instruments datasheet to confirm the exact speed grade and package variant. Ensure that the procurement channel provides components with valid RoHS compliance documentation. Cross-reference the manufacturer part number with the latest product change notifications to avoid obsolete stock. Confirm moisture sensitivity level handling requirements prior to assembly.

Selection Notes

Select this component when a balance of processing power and industrial-grade reliability is required. The AM4378 offers sufficient performance for complex HMI applications while maintaining low power consumption. Consider the available peripheral interfaces and cache sizes relative to the target operating system and application workload. Verify that the BGA-491 footprint aligns with the PCB design constraints and thermal management capabilities.

Part Context

This processor belongs to the Sitara AM437x family, designed for cost-sensitive embedded applications requiring robust connectivity and real-time capabilities. It shares architectural similarities with other members like the AM4376 and AM4378, differing primarily in memory size and feature sets. The family targets markets demanding reliable operation in harsh environments, leveraging the mature ARM Cortex-A9 core technology.

Replacement Considerations

Consult the official Texas Instruments AM437x family comparison table for verified pin-to-pin or functional substitutes. Potential alternatives may include other variants within the AM437x series, such as the AM4376 or AM4379, depending on specific memory and peripheral requirements. Always validate electrical compatibility and software support before transitioning to a different part number.