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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Tray |
Core Processor AVR
Core Size 8-Bit
Speed 16MHz
Connectivity I2C, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 53
Program Memory Size 64KB (32K x 16)
Program Memory Type FLASH
EEPROM Size 2K 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 ~ 85°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 Microchip ATMEGA64-16MU is a high-performance 8-bit AVR microcontroller in a compact 64-VFQFN package. Operating at 16MHz with a 4.5V-5.5V supply, it delivers 64KB flash memory and 4KB SRAM for demanding embedded applications. Its integrated brown-out detection, watchdog timer, and PWM channels ensure reliable operation in industrial and automotive environments.

  • High-speed 16MHz AVR core: Enables faster processing of complex algorithms compared to 8MHz variants, improving real-time response.
  • 64KB flash memory: Ample space for large firmware, supporting feature-rich applications without external storage.
  • 5V operation: Simplifies direct interfacing with legacy sensors and logic, reducing BOM cost.
  • Exposed pad package: Enhances thermal performance, allowing sustained operation in high-temperature environments.

Industrial Automation Controllers

The 16MHz AVR core with 64KB flash and 4KB SRAM handles real-time control loops for PLCs and motor control, with PWM channels for precise actuator management.

Automotive Aftermarket ECUs

With a 4.5V-5.5V supply and robust WDT, it suits engine sensor interfaces and dashboard logic in 12V vehicle environments, ensuring stable operation under voltage transients.

Medical Monitoring Devices

Low-power sleep modes and brown-out detection make it reliable for portable patient monitors, processing biosignals at 16MHz while maintaining data integrity.

Smart Grid Metering

The 64KB flash stores calibration data and communication protocols for energy meters, while the 5V operation simplifies interfacing with analog front-ends.

Robotics Control Boards

Multiple PWM outputs and a 16MHz clock enable smooth servo and stepper motor control, with the exposed pad package aiding thermal dissipation in compact robots.

Security Systems

WDT and POR features ensure fail-safe operation in alarm panels, with 4KB SRAM buffering sensor events and 64KB flash for firmware updates.

Q: What is the maximum operating frequency of the ATMEGA64-16MU?
A: The ATMEGA64-16MU operates at up to 16MHz with a supply voltage of 4.5V to 5.5V.
Q: What is the program memory size?
A: It features 64KB of in-system programmable flash memory (32K x 16 bits).
Q: What package is available?
A: It comes in a 64-VFQFN exposed pad package, suitable for compact PCB designs.
Q: Does it include analog comparators?
A: Yes, it includes an analog comparator along with PWM, WDT, and brown-out detection.
Base Product Number : ATMEGA64
16MHz 4KB SRAM 64KB Flash 8-bit MCU ATmega64 Automotive AVR Industrial Medical PWM VFQFN-64 WDT
Q: What is the maximum operating frequency of the ATMEGA64-16MU?
A: The ATMEGA64-16MU operates at up to 16MHz with a supply voltage of 4.5V to 5.5V.
Q: What is the program memory size?
A: It features 64KB of in-system programmable flash memory (32K x 16 bits).
Q: What package is available?
A: It comes in a 64-VFQFN exposed pad package, suitable for compact PCB designs.
Q: Does it include analog comparators?
A: Yes, it includes an analog comparator along with PWM, WDT, and brown-out detection.