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The high-performance, low-power Atmel 8-bit AVR RISC-based microcontroller combines 32KB ISP flash memory with read-while-write capabilities, 1KB EEPROM, 2KB SRAM, 27 general purpose I/O lines, 32 general purpose working registers, one motor power stage controller, two flexible timer/counters with compare modes and PWM, UART with HW LIN, 11-channel 10-bit A/D converter with two differential programmable gain input stages, 10-bit D/A converter, programmable watchdog timer with internal individual oscillator, SPI serial port, on-chip debug system, and four software selectable power saving modes. The device operates between 2.7-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

Key Parameters


Flash (kBytes):

32 kBytes

Pin Count:


Max. Operating Freq. (MHz):

16 MHz


8-bit AVR

# of Touch Channels:


Hardware QTouch Acquisition:


Max I/O Pins:


Ext Interrupts:


USB Speed:


USB Interface:



Ordering Code Package Operational Range Carrier Type Samples Atmel Store Availability1 Unit Price2 Buy Online
ATMEGA32M1-AU TQFP 32A 32 Industrial (A) (-40°C to 85°C) Request
ATMEGA32M1-MU VQFN (Sawn) PV 32 Industrial (A) (-40°C to 85°C) Request

1Backlog orders can be placed for items currently not available.
2Suggested retail price per unit for budgetary use only.