ATMEGA8A-AU
| Parameters | |
|---|---|
| Series | AVR® ATmega |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 32-TQFP |
| Mfr | Microchip Technology |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 32-TQFP (7x7) |
| Speed | 16MHz |
| Oscillator Type | Internal |
| Core Processor | AVR |
| RAM Size | 1K x 8 |
| Number of I/O | 23 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| EEPROM Size | 512 x 8 |
| Program Memory Type | FLASH |
| Connectivity | I²C, SPI, UART/USART |
| Core Size | 8-Bit |
| Program Memory Size | 8KB (4K x 16) |
| Data Converters | A/D 8x10b |
| Package | Tray |
| Product Status | Active |
| Base Product Number | ATMEGA8 |
| REACH Status | REACH Unaffected |
| Other Names | ATMEGA8AAU |
| Standard Package | 250 |
| ECCN | EAR99 |
| HTSUS | 8542.31.0001 |
ATMEGA8A-AU 8-bit AVR Microcontroller IC 16MHz 8KB (4K x 16) FLASH 32-TQFP
The ATMEGA8A-AU, manufactured by Microchip Technology, is a high-performance, low-power 8-bit AVR RISC-based microcontroller that delivers exceptional efficiency for embedded control applications. The architecture features 32 general-purpose working registers directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in a single instruction executed within one clock cycle—resulting in code efficiency up to ten times faster than conventional CISC microcontrollers. In terms of memory and storage, the ATMEGA8A-AU integrates 8KB of In-System Programmable Flash with read-while-write capabilities, 512 bytes of EEPROM with an endurance of at least 100,000 write/erase cycles, and 1KB of SRAM. This memory configuration provides ample space for program code, persistent data storage, and runtime variables, making it suitable for a broad spectrum of embedded applications.
Typical applications span industrial automation, motor control, sensor interfaces, home automation, IoT edge devices, consumer electronics, medical instruments, and educational development platforms. Its combination of performance, low power consumption, rich peripherals, and mature ecosystem makes it a cost-effective solution for countless embedded systems.
Alternative AVR MCUs
1. ATMEGA8A-PU: 28-pin PDIP through-hole package version offering the same core functionality for prototyping and hobbyist applications
2. ATMEGA8A-MU: 32-pad VQFN package variant with same specifications for space-constrained designs
3. ATMEGA88A-AU: Upgraded 8KB Flash/1KB RAM AVR microcontroller with enhanced feature set in identical TQFP-32 package
4. ATMEGA168A-AU: Higher-memory alternative featuring 16KB Flash and 1KB RAM for applications requiring additional code storage
