ATMEGA8L-8AJ

Overview

The ATMEGA8L-8AJ is an 8-bit AVR microcontroller featuring 8KB of in-system programmable Flash, 512 bytes of EEPROM, and 1KB of SRAM. It operates at a maximum clock frequency of 8MHz with a supply voltage range of 2.7V to 5.5V. The device utilizes a 32-pin TQFP package and includes 23 programmable I/O lines. Key peripherals comprise an 8-channel 10-bit ADC, three PWM channels, a real-time counter, and serial interfaces including SPI, USART, and TWI.

Feature Summary

• High-performance RISC architecture enabling single-cycle instruction execution for efficient processing.
• Integrated non-volatile memory system supporting read-while-write capabilities for continuous operation.
• Comprehensive peripheral set including analog-to-digital conversion and multiple timer/counters.

Applications

• Low-power embedded control systems
• Sensor data acquisition modules
• Industrial automation controllers

Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified partners. Confirm package integrity and pin alignment against the 32-TQFP specification. Review datasheet revisions for any functional updates. Ensure environmental compliance documentation matches project requirements. Validate supplier credentials prior to purchase.

Selection Notes

Select this model for applications requiring low voltage operation down to 2.7V and moderate processing speeds up to 8MHz. Consider the 32-TQFP package for surface-mount assembly constraints. Evaluate peripheral needs such as ADC channels and serial communication interfaces against specific design requirements before finalizing the selection.

Part Context

This component belongs to the ATmega8 family, designed for cost-effective and energy-efficient microcontroller solutions. It leverages the AVR RISC core to balance performance with power consumption. The 'L' suffix indicates low-voltage capability, while '8AJ' specifies the speed grade and package type within the product line.

Replacement Considerations

Public confirmed substitute part numbers: ATMEGA8L-8AU, ATMEGA8L-8PU, ATMEGA8L-10AU, ATMEGA8L-10PU.