Professional IC Distribution & Technical Solutions

The AT91R40008-66AU is a microcontroller manufactured by Microchip. Below are its specifications, descriptions, and features:

Specifications:

• Manufacturer: Microchip
• Core: ARM7TDMI
• Clock Speed: 66 MHz
• Operating Voltage: 3.3V
• Package: 144-LQFP (Low-Profile Quad Flat Package)
• Flash Memory: None (external memory interface supported)
• SRAM: 8 KB
• Operating Temperature: -40°C to +85°C
• I/O Pins: 112
• Timers: Multiple 16-bit and 32-bit timers
• Communication Interfaces: USART, SPI, I²C
• DMA Channels: 4
• External Memory Interface: Supports SRAM, Flash, ROM, and SDRAM

Descriptions:

The AT91R40008-66AU is a high-performance ARM7TDMI-based microcontroller designed for embedded applications requiring efficient processing and real-time control. It features an external memory interface for flexible system expansion and includes multiple communication peripherals for interfacing with external devices.

Features:

• ARM7TDMI RISC Processor Core
• 66 MHz Operating Frequency
• 8 KB On-Chip SRAM
• External Bus Interface (EBI) for memory expansion
• Multiple Communication Interfaces (USART, SPI, I²C)
• Advanced Interrupt Controller (AIC)
• Power Management Modes for low-power operation
• 4 DMA Channels for efficient data transfer
• Wide Operating Temperature Range (-40°C to +85°C)
• 144-Pin LQFP Package

This microcontroller is commonly used in industrial control, automotive, and consumer electronics applications.