ATMEGA32A - AU Microcontroller - (SMD Package) - TQFP - 44 Pin Microcontroller

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 Atmel AVR 8-bit Microcontroller

• Advanced RISC Architecture

- 131 powerful instructions – most single clock cycle execution

- 32 × 8 General Purpose Working Registers + Peripheral Control Registers

- Fully Static Operation

- Up to 16MIPS Throughput at 16MHz

- On-chip 2-cycle Multiplier

• High Endurance Non-volatile Memory segments

- 32K bytes 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

• Peripheral Features

– Two 8-bit Timer/Counters with separate prescaler and compare mode

– 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

– Programmable serial USART

– Master/Slave SPI Serial Interface

– Programmable Watchdog Timer with On-chip Oscillator

– On-chip Analog Comparator

– Byte Oriented 2-wire Serial Interface

• 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 voltage

– 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

Specification:-

Parameters	Values
Program Memory Type	Flash
Program Memory Size (KB)	32
CPU Speed (MIPS/DMIPS)	16
SRAM (B)	2,048
Data EEPROM/HEF (bytes)	1024
Digital Communication Peripherals	1-UART, 2-SPI, 1-I2C
Capture/Compare/PWM Peripherals	1 Input Capture, 1 CCP, 6PWM
Timers	2 x 8-bit, 4 x 16-bit
Number of Comparators	1
Temperature Range (°C)	-40 to 85
Operating Voltage Range (V)	2.7 to 5.5
Pin Count	44

Related Document:-

ATMEGA32A SMD Data Sheet