Overview
The Atmel® AVR® ATmega32A, now part of Microchip Technology, is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. This microcontroller is designed to optimize power consumption versus processing speed, achieving throughputs approaching 1 MIPS per MHz. It is highly efficient, executing powerful instructions in a single clock cycle, making it more code efficient and faster than conventional CISC microcontrollers.
Key Specifications
| Specification | Details |
|---|---|
| Flash Program Memory | 32Kbytes, In-System Programmable with Read-While-Write capabilities |
| EEPROM | 1024 bytes |
| SRAM | 2Kbytes |
| General Purpose Working Registers | 32 |
| General Purpose I/O Lines | 32 |
| Timer/Counters | Three flexible Timer/Counters with compare modes |
| Interrupts | Internal and External Interrupts |
| USART | Serial programmable USART |
| Two-wire Serial Interface | Byte oriented Two-wire Serial Interface |
| ADC | 8-channel, 10-bit ADC with optional differential input stage and programmable gain (TQFP package only) |
| Watchdog Timer | Programmable Watchdog Timer with Internal Oscillator |
| SPI Serial Port | Available |
| Power Saving Modes | Six software selectable power saving modes |
| JTAG Interface | IEEE std. 1149.1 Compliant with Boundary-scan and On-chip Debugging support |
| Operating Temperature | -40°C to +85°C |
| Package | TQFP, among others |
Key Features
- High-performance, Low-power AVR 8-bit Microcontroller
- Advanced RISC Architecture with 131 powerful instructions and most single-clock cycle execution
- Fully Static Operation and up to 16MIPS Throughput at 16MHz
- High Endurance Non-volatile Memory segments: 32Kbytes Flash, 1024Bytes EEPROM, and 2Kbytes SRAM
- In-System Programming by On-chip Boot Program and True Read-While-Write Operation
- Programming Lock for Software Security
- Extensive On-chip Debug Support and Boundary-scan Capabilities according to the JTAG Standard
- Optional Boot Code Section with Independent Lock Bits
- Data retention: 20 years at 85°C/100 years at 25°C
Applications
The ATmega32A is versatile and can be used in a variety of applications, including but not limited to:
- Industrial Automation
- Consumer Electronics
- Automotive Systems
- Medical Devices
- Wireless Communication Devices
- Robotics and Embedded Systems
Q & A
- What is the ATmega32A microcontroller based on?
The ATmega32A is based on the AVR enhanced RISC architecture. - How much Flash Program Memory does the ATmega32A have?
The ATmega32A has 32Kbytes of In-System Programmable Flash Program Memory. - What is the maximum throughput of the ATmega32A at 16MHz?
The maximum throughput is up to 16MIPS at 16MHz. - Does the ATmega32A support JTAG interface?
Yes, it supports IEEE std. 1149.1 Compliant JTAG interface with Boundary-scan and On-chip Debugging support. - How many general purpose I/O lines does the ATmega32A have?
The ATmega32A has 32 general purpose I/O lines. - What types of timers/counters are available on the ATmega32A?
It has three flexible Timer/Counters with compare modes. - Does the ATmega32A have an ADC?
Yes, it has an 8-channel, 10-bit ADC with optional differential input stage and programmable gain (TQFP package only). - What is the operating temperature range of the ATmega32A?
The operating temperature range is -40°C to +85°C. - How many power saving modes does the ATmega32A support?
It supports six software selectable power saving modes. - What is the data retention period for the EEPROM?
The data retention period is 20 years at 85°C/100 years at 25°C.
