ATMEGA8L-8MU

Overview

The ATMEGA8L-8MU is an 8-bit AVR microcontroller manufactured by Microchip Technology. It features 8 KB of In-System Programmable Flash, 512 Bytes of EEPROM, and 1 Kbyte of Internal SRAM. The device operates within a voltage range of 2.7V to 5.5V with a maximum clock frequency of 8 MHz. It utilizes a 32-pad QFN/MLF package (32M1-A) measuring 5 x 5 mm with a 0.50 mm lead pitch. The component supports industrial temperature operation from -40°C to +85°C.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput efficiency.
• Non-volatile memory segments supporting true Read-While-Write operations and in-system programming via SPI.
• Integrated peripheral suite including three Timer/Counters, a programmable Watchdog Timer, and multiple serial communication interfaces.
• Five software-selectable power-saving modes designed to optimize system energy consumption.

Applications

• Embedded control systems requiring low-power operation
• Industrial monitoring devices operating in wide temperature ranges
• Battery-powered consumer electronics

Procurement Notes

Verify the specific ordering code against current Microchip documentation to ensure compatibility with required packaging options. Confirm that the selected variant meets all environmental specifications for the intended application environment. Review the datasheet errata section for known silicon revisions and recommended workarounds before finalizing design implementation.

Selection Notes

Select this component when a compact surface-mount solution is required for 8-bit processing tasks. The MLF package offers a small footprint suitable for space-constrained designs. Ensure the application voltage remains within the 2.7V to 5.5V range to maintain reliable operation at the specified 8 MHz speed grade.

Part Context

This part belongs to the ATmega8 family of 8-bit AVR microcontrollers. It shares the core CPU architecture and peripheral set with other variants in the series but differs in package type and speed grade. The 'L' suffix indicates low-voltage capability, while 'MU' specifies the 8 MHz speed and MLF package configuration.

Replacement Considerations

Consult official Microchip documentation for verified substitute part numbers. Cross-referencing should focus on matching pinout, memory size, and package dimensions to ensure mechanical and electrical compatibility during board upgrades or supply chain adjustments.

FAQ

How many ADC channels are available in the ATMEGA8L-8MU?

The ATMEGA8L-8MU package provides eight 10-bit ADC channels.

What is the data retention period for the Flash memory?

The Flash program memory retains data for 20 years at 85°C or 100 years at 25°C.