ATMEGA8L-8PJ

Overview

The ATMEGA8L-8PJ is an 8-bit AVR RISC microcontroller featuring 8KB of in-system programmable Flash memory, 1KB SRAM, and 512B EEPROM. It operates within a voltage range of 2.7V to 5.5V with a maximum clock frequency of 8MHz. The device provides 23 general-purpose I/O lines and includes an 8-channel 10-bit ADC. Communication interfaces include SPI, USART, and TWI (I2C). It utilizes a 28-pin PDIP package.

Feature Summary

• High-performance 8-bit AVR RISC architecture enabling efficient single-cycle instruction execution
• Non-volatile memory system supporting in-system programming with high endurance cycles
• Integrated analog-to-digital converter for multi-channel signal acquisition
• On-chip debugging capabilities via debugWIRE interface

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications utilizing serial communication protocols
• Sensor interfacing nodes leveraging integrated ADC functionality
• General-purpose logic control in cost-sensitive consumer electronics

Procurement Notes

Verify the specific suffix 'PJ' against official Microchip documentation to confirm the 28-pin PDIP package configuration and commercial status. Ensure that the operating voltage and temperature ranges align with the target application environment before integration. Cross-reference the datasheet revision to confirm peripheral availability and electrical characteristics.

Selection Notes

Select this component when an 8MHz processing speed and 8KB program memory are sufficient for the application logic. Consider the PDIP package form factor if through-hole mounting is required. Evaluate the 2.7V minimum supply requirement against available power rails. Compare pin count requirements against the 23 available I/O lines to ensure adequate connectivity.

Part Context

This part belongs to the AVR ATmega family of 8-bit microcontrollers manufactured by Microchip Technology. It shares architectural similarities with other ATmega8 variants but is distinguished by its low-voltage operation and specific packaging. The series is designed for applications balancing performance with power efficiency.

Replacement Considerations

Consult official Microchip substitution lists for verified alternatives. Generic replacements may differ in pinout or electrical specifications. Verify compatibility with existing firmware and hardware constraints before transitioning to substitute components.