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ATmega8A U PDIP-28 AVR Microcontroller

ATmega8A U PDIP-28 AVR Microcontroller

SKU SKU Code: # AQ28

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The Atmel®AVR® ATmega8 is a low-power CMOS 8-bit microcontroller based on the AVR RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega8 achieves throughputs approaching 1MIPS per MHz, allowing the system designer to optimize power consumption versus processing speed. The Atmega8A is an 8-bit AVR RISC-based microcontroller from Atmel that includes 8KB ISP flash memory, 1KB SRAM, 512B EEPROM, a 7-channel/10-bit A/D converter (TQFP and QFN/MLF), and debug WIRE for on-chip debugging.



  • Advanced RISC Architecture
  • 130 Powerful Instructions, 32 × 8 General Purpose Working Registers,
  • Fully Static Operation,
  • Up to 16 MIPS Throughput at 16MHz, On-chip 2-cycle Multiplier
  • 23 Programmable I/O Lines
  • Operating Voltages: 4.5V - 5.5V
  • Power Consumption at 4Mhz, 3V, 25°C : Active: 3.6mA ;Idle Mode: 1.0mA ;Power-down Mode: 0.5µA
  • Five Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, and Standby
  • Internal Calibrated RC Oscillator
  • External and Internal Interrupt Sources
  • Programmable Serial USART
  • Real-Time Counter with Separate Oscillator
  • Three PWM Channels
  • 8Kbytes of In-System Self-programmable Flash program memory, 512Bytes EEPROM, 1Kbyte Internal SRAM
  • Data retention: 20 years at 85°C/100 years at 25°C
Model ATmega8A U
Package/Case PDIP-28
Minimum Supply Voltage (V) 2.7
Maximum Supply Voltage (V) 5.5
Product Type 8-bit Microcontrollers – MCU
Maximum Clock Frequency (MHz) 16
Data Bus Width 8 bit
Interface Type SPI, TWI, USART
Program Memory Size (kB) 8
Data RAM size and Type 1KB SRAM
Data ROM Size and Type 512-B EEPROM
No. of Timers/Counters 3 Timer
Operating Temperature Range -24°C to 84°C
Mounting Type Through Hole
No. of I/Os 23