EmbeddedRelated.com
The 2026 Embedded Online Conference
    Parts   Microcontrollers    ATmega Family    ATMEGA16A    ATMEGA16A-AUR
ATMEGA16A-AUR

MCHPATMEGA16A-AUR

Microchip Technology
AVR AVR® ATmega Microcontroller IC 8-Bit 16MHz 16KB (8K x 16) FLASH 44-TQFP (10x10)
NRND32,684 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The ATMEGA16A-AUR is a high-performance, low-power 8-bit AVR RISC-based microcontroller featuring 16KB of self-programmable flash memory and 1KB of SRAM. It operates at speeds up to 16MHz and includes an on-chip 2-cycle multiplier, making it efficient for various embedded control tasks. The device is housed in a 44-pin TQFP package and supports JTAG for on-chip debugging and boundary-scan.

Why Choose This Part

This MCU offers a robust balance of 16KB flash and 512 bytes of EEPROM, which is ideal for storing non-volatile configuration data. Its extensive power-saving modes, including Power-down and Standby, allow for extremely low current consumption in battery-operated designs. The inclusion of a JTAG interface simplifies both the programming of fuses and the debugging of complex code.

Applications

Industrial Control Systems
Utilizing the 32 general-purpose registers and 16MHz clock for real-time monitoring and control of industrial equipment.
Legacy System Maintenance
Serving as a drop-in replacement or upgrade for older ATmega16 designs requiring high reliability and low power consumption.
Sensor Interfacing
Leveraging the integrated ADC and multiple sleep modes to process analog sensor data while maintaining a low power profile.
Consumer Electronics
Managing user interfaces, button inputs, and simple display drivers in household appliances and gadgets.

Key Specifications

Speed 16MHz
RAM Size 1K x 8
Core Size 8-Bit
EEPROM Size 512 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Connectivity I2C, SPI, UART/USART
Mounting Type Surface Mount
Number of I/O 32
Core Processor AVR
Package / Case 44-TQFP
Data Converters A/D 8x10b
Oscillator Type Internal
Program Memory Size 16KB (8K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 44-TQFP (10x10)
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V

Getting Started

Development typically involves the Microchip Studio IDE or the AVR-GCC toolchain. Hardware debugging and programming are best handled using the Atmel-ICE or a compatible JTAG programmer. For prototyping, many engineers use the ATMEGA16A on a custom PCB or a breakout board alongside the AVR ISP MkII interface.

Part of ATmega family » ATMEGA16A

ATMEGA16A Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
ATMEGA16A-AUR (this part) TQFP-44 32,684
ATMEGA16A-PU DIP-40 695

Categories

Microcontrollers Microcontrollers > AVR
The 2026 Embedded Online Conference