ATMEGA169V-8MU
ATMEGA169V-8MU - 8-bit AVR MCU 16KB 64QFN | Microchip
The Microchip Technology ATMEGA169V-8MU is an 8-bit AVR RISC microcontroller with 16KB of in-system programmable Flash, 1KB SRAM, 512B EEPROM, and an 8-channel 10-bit ADC, rated for operation up to 8 MHz from 2.7V to 5.5V, housed in a 64-pin QFN (9x9 mm) package with exposed pad.
An 8-bit microcontroller is a complete computer system on a single chip that integrates a processor core, program memory, data memory, and peripherals such as timers, ADCs, and serial interfaces. Within the embedded systems hierarchy, the ATmega family sits in the general-purpose MCU category, positioned below 32-bit MCUs in processing power but excelling in simplicity, cost, and power efficiency for control-oriented tasks.
Key differentiating features include the AVR enhanced RISC architecture executing 131 mostly single-cycle instructions for up to 16 MIPS at 16 MHz (8 MIPS at the 8 MHz rating of this V-grade part), JTAG interface for on-chip debug and boundary-scan, and in-system self-programming Flash that enables field firmware updates. The V suffix denotes the low-voltage grade, supporting full functionality down to 2.7V for battery-powered designs.
Technically, the ATmega169 is a fully static CMOS design with an AVR core, 32 general-purpose working registers directly connected to the ALU, allowing one-cycle execution of most instructions. Peripheral set includes two 8-bit timers, one 16-bit timer, USART, SPI, two-wire interface, analog comparator, and the LCD controller variant heritage makes this family popular in segmented display applications.
Typical applications include battery-powered instruments, LCD-based consumer devices, industrial sensors, and hand-held meters where low-voltage operation and 64 I/O-rich pin count are required.
When designing with this device, account for the 8 MHz maximum clock of the V grade; designs needing 16 MHz operation should select the standard grade variant. Supply decoupling and proper JTAG fuse configuration are common integration points.
This page synthesizes distributor availability data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing and stock referenced as of 2026-09-17.
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