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8-bit AVR Microcontroller
ATmega8A
DATASHEET COMPLETE
Introduction
The Atmel
®
ATmega8A is a low-power CMOS 8-bit microcontroller based on
the AVR
®
enhanced RISC architecture. By executing powerful instructions in
a single clock cycle, the ATmega8A achieves throughputs close to 1MIPS
per MHz. This empowers system designer to optimize the device for power
consumption versus processing speed.
Features
• High-performance, Low-power Atmel AVR 8-bit Microcontroller
• Advanced RISC Architecture
– 130 Powerful Instructions - Most Single-clock Cycle Execution
– 32 x 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
– 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
• Atmel QTouch
®
library support
– Capacitive touch buttons, sliders and wheels
– Atmel QTouch and QMatrix acquisition
– Up to 64 sense channels
• Peripheral Features
– Two 8-bit Timer/Counters with Separate Prescaler, one Compare
Mode
Atmel-8159F-8-bit AVR Microcontroller_Datasheet_Complete-09/2015
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