ATMEGA32A

ATMEGA32A 8-Bit AVR Microcontroller

ATMEGA32A is a 40 pin, 8-bit AVR RISC-based microcontroller from Atmel. It is a low power, high performance microcontroller featuring 32KB self-programming flash program memory, 2KB SRAM, 1KB EEPROM, 8 channel 10-bit A/D converter and JTAG interface for on-chip-debug. The device acheives 16 MIPS throughput at 16 Mhz at 2.7-5.5V operation.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, allowing you to optimize power consumption versus processing speed. 

Features of ATMEGA32A Microcontroller

• High-performance, Low-power Atmel AVR 8-bit Microcontroller

• Advanced RISC Architecture

             – 131 Powerful Instructions - Most Single-clock Cycle Execution
             – 32 × 8 General Purpose Working Registers
             – Fully Static Operation
             – Up to 16MIPS Throughput at 16MHz
             – On-chip 2-cycle Multiplier

• High Endurance Non-volatile Memory segments

             – 32Kbytes of In-System Self-programmable Flash program

• Memory

             – 1024Bytes EEPROM
             – 2Kbytes Internal SRAM
             – Write/Erase cycles: 10,000 Flash/100,000 EEPROM
             – Data retention : 20 years at 85°C/100 years at 25°C(1)
             – Optional Boot Code Section with Independent Lock Bits

• In-System Programming by On-chip Boot Program

• True Read-While-Write Operation

             – Programming Lock for Software Security

• JTAG (IEEE std. 1149.1 Compliant) Interface

             – Boundary-scan Capabilities According to the JTAG Standard
             – Extensive On-chip Debug Support
             – Programming of Flash, EEPROM, Fuses and Lock Bits through the JTAG Interface

• Atmel QTouch® library support

             – Capacitive touch buttons, sliders and wheels
             – Atmel QTouch and QMatrix acquisition
             – Up to 64 sense channels

• Peripheral Features

             – Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
             – One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
             – Real Time Counter with Separate Oscillator
             – Four PWM Channels
             – 8-channel, 10-bit ADC

• 8 Single-ended Channels

• 7 Differential Channels in TQFP Package Only

• 2 Differential Channels with Programmable Gain at 1x, 10x, or 200x

             – Byte-oriented Two-wire Serial Interface
             – Programmable Serial USART
             – Master/Slave SPI Serial Interface
             – Programmable Watchdog Timer with On-chip Oscillator
             – On-chip Analog Comparator

• Special Microcontroller Features

             – Power-on Reset and Programmable Brown-out Detection
             – Internal Calibrated RC Oscillator
             – External and Internal Interrupt Sources
             – Six Sleep Modes : Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby

• I/O and Packages

             – 32 Programmable I/O Lines
             – 40-pin PDIP, 44-lead TQFP, and 44-pad QFN/MLF

• Operating Voltages

             – 2.7 - 5.5V

• Speed Grades

             – 0 - 16MHz

• Power Consumption at 1MHz, 3V, 25°C

             – Active : 0.6mA
             – Idle Mode : 0.2mA
             – Power-down Mode: < 1μA