ATMEGA8L-8MU
ATMEGA8L-8MU - 8-Bit 8MHz 8KB MCU | Microchip Technology
The Microchip Technology ATMEGA8L-8MU is an 8-bit AVR RISC-based microcontroller with an 8 MHz maximum clock frequency, 8 KB of Flash program memory, 512 bytes of EEPROM, and 1 KB of SRAM, packaged in a 32-VQFN 5 mm × 5 mm package. It provides 23 general-purpose I/O pins and combines low-power operation with programmable in-system serial programming support.
What is an 8-bit microcontroller? An 8-bit microcontroller is a programmable semiconductor that executes instructions using an 8-bit data path. The ATMEGA8L belongs to the AVR family, a RISC-based architecture designed for efficient embedded control. Its memory hierarchy includes Flash for firmware, SRAM for working data, and EEPROM for nonvolatile parameter storage, making it suitable for compact control, sensing, communications, and automation products.
Key verified features include 8 KB of ISP Flash, read-while-write capability, 512 bytes of EEPROM, 1 KB of SRAM, 23 I/O lines, 32 general-purpose working registers, and three flexible timer/counters. The L designation identifies the low-power version, while the -8 speed grade and M package code indicate the 8 MHz and surface-mount configuration. The 32-VQFN package supports dense PCB layouts but requires careful thermal-pad and assembly planning.
The device is based on a high-performance, low-power AVR 8-bit RISC core. Its memory arrangement allows firmware to be programmed and reprogrammed through ISP, while the peripheral set supports embedded timing, serial communication, analog comparison, and digital control tasks. Exact operating-voltage, current, temperature, timer-channel, and package-dimension values are not present in the supplied web data and should be confirmed from the official datasheet before design release.
Typical applications include compact sensor controllers, low-cost industrial control modules, battery-operated instruments, LED and display controllers, communications equipment, and small automation systems. The 23 I/O lines provide useful connectivity for buttons, sensors, relays, indicators, and serial interfaces when the board design fits within the device’s electrical and timing limits.
For PCB implementation, use the manufacturer’s recommended VQFN land pattern, provide a stable decoupling network close to the supply pins, and connect the exposed pad according to the datasheet’s thermal and layout guidance. Verify programming, clock, reset, and unused-pin requirements before production. This page combines verified distributor data, source links, application guidance, and explicitly marked data gaps rather than guessing unspecified electrical values.
USD $1,12
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