AT91SAM7X128B-AU-999

Microcontrollers Overview

The AT91SAM7X128B-AU-999 is a 32-bit microcontroller based on the ARM7TDMI core, operating at a maximum frequency of 55 MHz. It features 128 kB of Flash program memory and 32 kB of SRAM. The device utilizes a 100-pin LQFP package and supports an industrial temperature range from -40°C to +85°C. Core supply voltage ranges from 1.65 V to 1.95 V, with I/O pins compatible with 3.3 V logic levels.

Microcontrollers Feature Summary

• Integrates a 10/100 Mbps Ethernet MAC controller for network connectivity
• Includes a USB 2.0 full-speed device interface
• Features a CAN controller compliant with CAN 2.0A/B protocols
• Provides multiple serial communication interfaces including USARTs and SPI

Microcontrollers Applications

• Industrial control systems requiring robust communication protocols
• Embedded networking devices utilizing Ethernet or USB connectivity
• Automotive applications leveraging CAN bus integration
• Data acquisition systems with analog input requirements

Microcontrollers Procurement Notes

Verify the specific suffix '999' against official Microchip documentation to confirm tape-and-reel packaging specifications. Ensure compatibility with existing PCB footprints for the 100-pin LQFP variant. Confirm that the industrial temperature rating meets environmental design constraints. Cross-reference the exact part number with current datasheets to validate pinout and electrical characteristics prior to procurement.

Microcontrollers Selection Notes

Select this component when a balance of processing power and integrated communication peripherals is required. The ARM7TDMI architecture offers efficient code execution for real-time applications. Consider the available Flash and SRAM sizes relative to application firmware complexity. Evaluate the extensive peripheral set, including ADC and PWM channels, against system interface needs before finalizing the design choice.

Microcontrollers Part Context

This microcontroller belongs to the AT91SAM7X family, designed for high-performance embedded applications. It combines a standard RISC processor with significant on-chip memory and diverse interface options. The series is characterized by its support for both ARM and Thumb instruction sets, optimizing performance and code density for various embedded computing tasks.

Microcontrollers Replacement Considerations

Consult official substitution lists for variants within the AT91SAM7X family, such as those with different memory capacities like the AT91SAM7X256 or AT91SAM7X512. Verify pin-to-pin compatibility and software register mapping before implementing any alternative part numbers in existing designs.