The ATmega32A is a low power, CMOS 8-bit microcontrollers based on the AVR® enhanced RISC architecture. The ATmega32A is a 40/44-pins device with 32 KB Flash, 2 KB SRAM and 1 KB EEPROM. By executing instructions in a single clock cycle, the devices achieve CPU throughput approaching one million instructions per second (MIPS) per megahertz, allowing the system designer to optimize power consumption versus processing speed.

Features

• High-performance, Low-power 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

• QTouch® Library Support

            – Capacitive touch buttons, sliders and wheels

            – QTouch and QMatrix™ acquisition

            – Up to 64 sense channels ATmega32A megaAVR® Data Sheet 

• 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 Separate 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

        – 2.7V - 5.5V

• Speed Grades

         – 0 - 16MHz

• Power Consumption at 1MHz, 3V, 25°C

         – Active: 0.6mA

         – Idle Mode: 0.2mA

         – Power-down Mode: < 1µA