ATMEGA8L-8AU

Overview

The ATMEGA8L-8AU is an 8-bit AVR microcontroller manufactured by Microchip Technology. It features 8 Kbytes of In-System Programmable Flash, 512 bytes of EEPROM, and 1 Kbyte of SRAM. The device operates within a voltage range of 2.7V to 5.5V and supports clock frequencies up to 8MHz. It utilizes a 32-lead Thin Plastic Quad Flat Package (TQFP) with dimensions of 7x7mm. The component includes 23 programmable I/O lines, an 8-channel 10-bit ADC, three PWM channels, and multiple communication interfaces including SPI, USART, and Two-wire Serial Interface.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput efficiency
• High endurance non-volatile memory segments supporting read-while-write operations and software security lock bits
• Integrated peripheral suite featuring flexible timer/counters, analog comparator, and programmable watchdog timer
• Five selectable power-saving modes including idle, power-down, and standby to optimize energy consumption

Applications

• Industrial control systems requiring low-power operation
• Computer peripherals and embedded controllers
• Battery-powered consumer electronics devices

Procurement Notes

Verify the specific ordering code matches the required speed grade and package type. Confirm that the industrial temperature range specification aligns with the target application environment. Ensure compatibility with existing PCB footprints for the 32-lead TQFP configuration before finalizing procurement orders.

Selection Notes

Select this component when a low-voltage operation down to 2.7V is required compared to standard variants. Consider the 8MHz maximum frequency limit against processing demands. Evaluate the 8KB Flash capacity against firmware size requirements. Verify that the 32-pin TQFP package fits the available board space constraints.

Part Context

This part belongs to the ATmega8 family of 8-bit AVR microcontrollers. It shares the core AVR RISC architecture with other members but is distinguished by its low-voltage capability and specific speed grade. The 'L' suffix indicates the low-voltage version, while '8AU' denotes the 8MHz speed and TQFP package.

Replacement Considerations

ATMEGA8L-8AUR provides the same specifications in a tape and reel packaging format.