ATMEGA169PA-MCH
ATMEGA169PA-MCH - 8-bit AVR MCU 16KB Flash 16MHz 64-QFN | Microchip
The Microchip Technology ATMEGA169PA-MCH is a picoPower 8-bit AVR RISC microcontroller delivering 16MHz clock speed, 16KB ISP flash memory with read-while-write capability, 512B EEPROM, and 1KB SRAM in a 64-pin QFN (7x7 mm) package with exposed pad.
An 8-bit AVR microcontroller is a single-chip processor that integrates a RISC CPU core, program flash, data SRAM, EEPROM, and peripheral functions such as timers, USART, SPI, and ADC on one die. Within the power management and embedded control hierarchy, MCUs like the ATmega169PA sit at the heart of any embedded system, executing application firmware directly from self-programmable flash. The AVR architecture is widely used in industrial control, consumer appliances, and battery-powered devices thanks to its single-cycle instruction execution and low-power operating modes.
Key features include the picoPower technology suite for ultra-low sleep-mode consumption, 54 general purpose I/O lines, 32 general purpose working registers, and a JTAG interface for on-chip debugging and boundary scan. The 16KB flash supports 10,000 write cycles and in-system programming via SPI, while the 512B EEPROM retains calibration and configuration data through 100,000 erase/write cycles.
The AVR enhanced RISC core executes 133 powerful instructions, most in a single clock cycle, achieving up to 16 MIPS throughput at 16MHz. Advanced peripherals typically include an 8-channel 10-bit ADC, two 8-bit timers, one 16-bit timer, USART, SPI, and analog comparator, providing a complete signal-chain and communication platform without external components.
Typical applications include LCD-equipped battery-powered instruments, industrial sensor nodes, consumer appliance control panels, and low-power data loggers where picoPower sleep modes extend battery life. The 64-pin QFN (MCH) footprint suits compact, space-constrained PCB designs.
A key design consideration is supply voltage: the ATmega169PA operates from 2.7V to 5.5V (per digchip verified data), so confirm the voltage-speed derating curve when running above 8MHz at lower supplies.
This page synthesizes distributor pricing, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with prices referenced as of 2026-09-16.
USD $1,68
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