ATMEGA8A - AU Microcontroller - (SMD TQFP Package) - 8-Bit 32 Pin AVR Microcontroller

The ATMEGA8A is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATMEGA8A achieves through puts approaching 1 MIPS per MHz, 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

- 8KBytes of In-System Self-programmable Flash program memory

- 512Bytes EEPROM

- 1KByte 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

• 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

– Three PWM Channels

– 8-channel ADC in TQFP and VQFN package

• Eight Channels 10-bit Accuracy

– 6-channel ADC in PDIP package

• Six Channels 10-bit Accuracy

– 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

̶  23 Programmable I/O Lines

̶  28-lead PDIP, 32-lead TQFP, and 32-pad VQFN

• Operating voltage

– 2.7 - 5.5V

– 0 - 16MHz

• Power Consumption at 4MHz, 3V, 25°C

- Active: 3.6mA

- Idle Mode: 1.0mA

- Power-down Mode: 0.5µA

Specification:-

Parameters	Values
Program Memory Type	Flash
Program Memory Size (KB)	8
CPU Speed (MIPS/DMIPS)	16
SRAM (B)	1,024
Data EEPROM/HEF (bytes)	512
Digital Communication Peripherals	1-UART, 1-SPI, 1-I2C
Timers	2 x 8-bit, 1 x 16-bit
Number of Comparators	1
Temperature Range (°C)	-40 to 85
Operating Voltage Range (V)	2.7 to 5.5
Pin Count	32

Related Document:-

ATMEGA8A SMD Data Sheet