Microchip ATXMEGA64A1-AU, 8bit AVR Microcontroller, ATmega, 32MHz, 64 kB Flash, 100-Pin TQFP

Low power, high performance 8/16-bit AVR microcontroller featuring 128KB self-programming flash program memory, 4KB boot code section, 8KB SRAM, 2048-Byte EEPROM, external bus interface, 4-channel DMA controller, 8-channel event system, and up to 32 MIPS throughput at 32MHz. The ATxmega A4U series features 44-pin packages. The device can be used in a wide range of applications, such as building, industrial, motor, board, and climate control, hand-held battery applications, factory automation, power tools, HVAC, networking, metering, large home appliances, and optical and medical devices.

High-performance, low-power Atmel ® AVR® XMEGA® 8/16-bit Microcontroller
Nonvolatile program and data memories
16K - 128KB of in-system self-programmable flash