Microchip Technology ATMEGA128-16MN

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Tray | NULL
Core Processor AVR
Core Size 8-Bit
Speed 16MHz
Connectivity EBI/EMI, I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 53
Program Memory Size 128KB (64K x 16)
Program Memory Type FLASH
EEPROM Size 4K x 8
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 4.5V ~ 5.5V
Data Converters A/D 8x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-QFN (9x9)
Package / Case 64-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATMEGA128-16MN from Microchip is an 8-bit AVR MCU running at 16MHz. It features 128KB flash and 4KB RAM in a 64-VFQFN package. Operating from 4.5V to 5.5V, it includes brown-out detection, PWM, and WDT, making it suitable for industrial and embedded control applications.

  • 16MHz AVR core: High performance for 8-bit applications.
  • 128KB flash: Large memory for complex programs.
  • 5V operation: Compatible with legacy 5V systems.
  • Brown-out detection: Prevents data corruption during power dips.
  • Compact VFQFN package: Saves board space.

Industrial Process Controllers

16MHz AVR core with PWM and WDT provides reliable control for temperature and flow systems.

Automotive Aftermarket ECUs

128KB flash supports custom tuning and diagnostic firmware in 5V automotive environments.

Robotics Hobbyist Platforms

4.5V-5.5V operation matches standard servo and sensor supplies, simplifying integration.

Smart Home Gateways

Brown-out detection ensures stable operation in power-fluctuating residential environments.

Test and Measurement Equipment

4KB RAM and 16MHz speed handle real-time data acquisition in portable meters.

Security Systems

POR and WDT enhance reliability in alarm control panels.

Q: What is the core architecture?
A: 8-bit AVR.
Q: What is the maximum speed?
A: 16MHz.
Q: What is the supply voltage?
A: 4.5V to 5.5V.
Q: How much flash memory?
A: 128KB.
Q: What package is it available in?
A: 64-VFQFN.
Base Product Number : ATMEGA128
128KB Flash 16MHz 4KB RAM 64-VFQFN 8-bit MCU AVR Brown-out Detect Embedded Industrial PWM WDT
Q: What is the core architecture?
A: 8-bit AVR.
Q: What is the maximum speed?
A: 16MHz.
Q: What is the supply voltage?
A: 4.5V to 5.5V.
Q: How much flash memory?
A: 128KB.
Q: What package is it available in?
A: 64-VFQFN.