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Product Specification


Features of ATmega32a

• 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

• 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

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Product Details

The ATmega32A is an 8-bit CMOS microcontroller with low power consumption that is based on the AVR® improved RISC architecture. The 40/44-pin ATmega32A has 32 KB Flash, 2 KB SRAM, and 1 KB EEPROM. The devices' ability to process instructions in a single clock cycle results in CPU throughput that is close to one million instructions per second (MIPS) per megahertz. This enables the system designer to balance power use and processing speed. A low-power, 8-bit CMOS microprocessor built on the AVR improved RISC architecture is called the AVR ATmega32A. The ATmega32A achieves throughputs close to 1 MIPS per MHz by carrying out strong instructions in a single clock cycle, enabling the system designer to balance power consumption and processing performance. 

High density nonvolatile memory technology from Microchip is used in the creation of the product. Through an SPI serial interface, a typical nonvolatile memory programmer, or an On-chip Boot software running on the AVR core, the On-chip ISP Flash enables in-system reprogramming of the programme memory. The application software in the Application Flash memory can be downloaded by the boot programme via any interface. The Application Flash part will be updated while the software in the Boot Flash area is still operating, enabling real Read-While-Write functioning.

The ATmega32A is a potent microcontroller that offers a highly versatile and economical solution to many embedded control applications by combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic device. A complete set of system and software development tools, such as C compilers, macro assemblers, programme debugger/simulators, in-circuit emulators, and evaluation kits, are available for the AVR ATmega32A.


Mr. Arpit Mehta


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