ATmega32A-AU Datasheet Summary

Device Information

• Manufacturer: Microchip Technology Inc.
• Part Number: ATmega32A-AU
• Package Type: 44-Pin TQFP (Thin Quad Flat Package)
• Operating Voltage: 2.7V - 5.5V
• Clock Speed: Up to 16MHz
• Temperature Range: Industrial (-40°C to 85°C)

Features

• Microcontroller Type: 8-bit AVR®
• Architecture: Enhanced RISC
• Flash Program Memory: 32Kbytes (In-System Self-programmable)
• SRAM: 2Kbytes
• EEPROM: 1Kbyte
• Programmable I/O Lines: 32
• General Purpose Working Registers: 32 × 8-bit
• Instruction Execution: Up to 16MIPS at 16MHz
• On-chip Multiplier: 2-cycle
• JTAG Interface: IEEE std. 1149.1 Compliant
• Boundary-scan Capabilities: Yes
• On-chip Debug Support: Yes
• Capacitive Touch Sensing: Supported with QTouch® Library

Peripherals

• Timers/Counters:Two 8-bit Timer/Counters with Separate Prescalers and Compare ModesOne 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
• Real Time Counter: With Separate Oscillator
• PWM Channels: Four
• ADC: 8-channel, 10-bit8 Single-ended Channels7 Differential Channels in TQFP Package Only2 Differential Channels with Programmable Gain (1x, 10x, or 200x)
• Serial Interfaces:Byte-oriented Two-wire Serial InterfaceProgrammable Serial USARTMaster/Slave SPI Serial Interface
• Programmable Watchdog Timer: With Separate On-chip Oscillator
• Analog Comparator: On-chip

Power Management

• Sleep Modes:IdleADC Noise ReductionPower-savePower-downStandbyExtended Standby
• Power Consumption:Active: 0.6mA at 1MHz, 3V, 25°CIdle Mode: 0.2mAPower-down Mode: < 1µA

System Control

• Reset Sources:Power-on ResetExternal ResetWatchdog ResetBrown-out ResetJTAG AVR Reset
• Brown-out Detection: Programmable
• Watchdog Timer: Programmable with Separate Oscillator

Memory Programming

• Program Memory Lock Bits: Available
• Fuse Bits: Available for Configuration
• Programming Methods:In-System Programming via On-chip Boot ProgramParallel ProgrammingSPI Serial DownloadingProgramming via JTAG Interface

Development Tools

• C Compilers: Supported
• Macro Assemblers: Supported
• Program Debugger/Simulators: Available
• In-Circuit Emulators: Available
• Evaluation Kits: Available