MCU – 32-bit ARM7TDMI RISC – 512KB Flash – 1.85V/3.3V – 100-Pin LQFP – Tray

AT91SAM7X512B-AU – 32-bit ARM7TDMI MCU with 512KB Flash – Microchip Technology

Experience robust embedded control with the AT91SAM7X512B-AU microcontroller from Microchip Technology. This high-performance 32-bit ARM7TDMI-based solution integrates 512KB Flash and 128KB RAM, designed for industrial automation, communication gateways, and IoT applications. PCX ensures genuine Microchip components with reliable stock and expedited shipping.

Key Features

• Core: 32-bit ARM7TDMI RISC processor @ 55MHz
• Memory: 512KB Flash + 128KB SRAM
• Voltage: Ultra-low 1.65V–1.95V operation (Vcc/Vdd)
• Connectivity: Ethernet, USB, CANbus, UART, SPI, I2C
• I/O Capability: 62 programmable GPIO pins
• Operating Temp: Industrial-grade -40°C to +85°C

Technical Specifications

Housed in a compact 100-LQFP (14x14mm) package, this MCU features advanced peripherals including brown-out detection, DMA controllers, PWM outputs, and an 8-channel 10-bit ADC. Its internal oscillator simplifies design while supporting surface-mount assembly. The device leverages Microchip’s SAM7X series architecture for deterministic real-time processing in power-sensitive environments. Download full datasheet

Common Applications

• Industrial motor control systems
• Networked sensor hubs and IoT gateways
• Medical monitoring equipment
• Building automation controllers
• Embedded communication interfaces

About Microchip Technology

Microchip Technology is a global leader in microcontroller and analog semiconductor solutions, renowned for innovation in embedded control systems. With over three decades of industry presence, they deliver silicon-proven architectures that meet rigorous automotive, industrial, and aerospace standards.

The company’s commitment to long-term product lifecycle support ensures design stability for critical applications. Microchip’s comprehensive development tools and documentation simplify integration, making them a trusted partner for engineers worldwide.

About Microcontrollers

Microcontrollers (MCUs) serve as the computational core in embedded systems, integrating processor, memory, and peripherals on a single chip. They enable precise real-time control in applications ranging from consumer electronics to industrial machinery.

Modern MCUs like this ARM7TDMI-based device balance processing power with energy efficiency. Their programmability allows firmware updates for feature enhancements, providing design flexibility while reducing system component count and BOM costs.

Packaging Information

Available in protective trays for automated assembly. Contact PCX for reel packaging options and bulk pricing.

Frequently Asked Questions

Q: Is this MCU suitable for battery-powered devices?
A: Yes, its 1.65V–1.95V operating range and power management peripherals optimize energy efficiency.

Q: What development tools support this microcontroller?
A: Microchip provides SAM-ICE debuggers and free MPLAB® X IDE with ARM GCC compiler support.

Q: Does it include hardware encryption?
A: No, security features are limited to memory protection units. Consider Microchip’s newer Cortex-M series for cryptographic functions.

Q: Can I migrate from AT91SAM7X256/128 variants?
A: Yes, pin-compatible with same-series 256KB/128KB Flash versions for easy upgrades.

Q: Why choose an ARM7 MCU over newer architectures?
A: Ideal for legacy system maintenance where software compatibility outweighs need for advanced features.

Q: Is obsolescence a concern for this part?
A: While marked obsolete, PCX maintains stock for lifecycle extensions. Contact us for migration guidance to active Microchip alternatives.

⚠️ Note: Product images are representational. Confirm physical markings upon receipt.

Secure your embedded project foundation! Order AT91SAM7X512B-AU today for guaranteed authentic Microchip components with next-day shipping from PCX.