ATMEGA8A-AU Microcontroller by Microchip | 8-Bit AVR MCU, 8KB Flash, TQFP-32 Package
MICROCHIP
ATMEGA8A-AU Microcontroller – Microchip
The ATMEGA8A-AU is a high-performance, low-power 8-bit AVR® microcontroller featuring 8 KB Flash memory, 1 KB SRAM, and 512 bytes EEPROM. It operates at speeds up to 16 MHz and offers rich peripheral features including 23 programmable I/O lines, 6-channel 10-bit ADC, timers, USART, SPI, and I²C (TWI). Packaged in a TQFP-32, it provides an excellent balance of performance, power efficiency, and versatility for a wide range of embedded applications.
Technical Specifications
| Parameter | Value / Description |
|---|---|
| Core | 8-bit AVR RISC |
| Program Memory (Flash) | 8 KB |
| SRAM | 1 KB |
| EEPROM | 512 bytes |
| CPU Speed | Up to 16 MHz |
| I/O Pins | 23 |
| ADC | 10-bit, 6 channels |
| Timers | 1 × 16-bit, 2 × 8-bit |
| Interfaces | USART, SPI, I²C (TWI) |
| Operating Voltage | 2.7 V – 5.5 V |
| Package | TQFP-32 |
| Temperature Range | –40 °C to +85 °C |
Key Features
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8 KB In-System Programmable Flash with read-while-write capability
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512B EEPROM & 1 KB SRAM
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Integrated 6-channel 10-bit ADC
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23 I/O lines for flexible peripheral control
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On-chip analog comparator
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Power-on reset & programmable brown-out detection
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Low-power consumption with multiple sleep modes
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Supports ISP & high-voltage programming
Applications
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Consumer electronics
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Industrial controllers
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Automotive electronics
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Embedded systems
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Robotics & DIY projects
