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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Cut Tape (CT) | Tape & Reel (TR)
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) 2.7V ~ 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-TQFP (14x14)
Package / Case 64-TQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATMEGA64A-ANR is a high-performance 8-bit AVR microcontroller with 64KB flash memory and 4KB SRAM. Operating at 16MHz with a 2.7V-5.5V supply, it integrates PWM, WDT, and brown-out detection for robust embedded control. Housed in a 64-TQFP package, it suits industrial and automotive applications requiring extended temperature tolerance.

  • Extended temperature range (-40°C to 105°C) ensures reliable operation in harsh environments.
  • Wide voltage range (2.7V-5.5V) simplifies power supply design and supports battery operation.
  • 64KB flash memory provides ample space for complex firmware without external storage.
  • Integrated WDT and brown-out reset enhance system reliability in noisy industrial settings.

Industrial Control Systems

With 64KB flash and 4KB SRAM, the ATMEGA64A-ANR handles complex control algorithms for motor control and process automation, operating reliably across -40°C to 105°C.

Automotive Aftermarket Electronics

The wide 2.7V-5.5V supply range and robust WDT make it suitable for sensor interfaces and body control modules in harsh electrical environments.

Smart Sensor Nodes

Its 16MHz AVR core and multiple PWM channels enable precise data acquisition and actuator control in IoT edge devices.

Medical Monitoring Devices

The low-power sleep modes and reliable brown-out detection support battery-operated patient monitors requiring long-term stability.

Building Automation

Use it for HVAC controllers and lighting systems where the 64-TQFP package allows compact PCB designs with multiple I/O lines.

Portable Instrumentation

The 5.5V tolerance simplifies interfacing with analog sensors, while the 4KB SRAM buffers real-time measurement data.

Q: What is the maximum operating frequency of the ATMEGA64A-ANR?
A: The ATMEGA64A-ANR operates at up to 16MHz with a supply voltage range of 2.7V to 5.5V.
Q: What is the program memory size of this AVR MCU?
A: It features 64KB of in-system programmable flash memory (32K x 16 bits).
Q: What package is the ATMEGA64A-ANR available in?
A: It comes in a 64-pin TQFP package, suitable for surface-mount assembly.
Q: Does it include a watchdog timer?
A: Yes, it includes a Watchdog Timer (WDT) along with Brown-out Detect/Reset, POR, and PWM features.
Base Product Number : ATMEGA64A
16MHz 4KB SRAM 64KB Flash 8-bit MCU ATmega64A Automotive AVR Industrial Microchip PWM TQFP-64 WDT
Q: What is the maximum operating frequency of the ATMEGA64A-ANR?
A: The ATMEGA64A-ANR operates at up to 16MHz with a supply voltage range of 2.7V to 5.5V.
Q: What is the program memory size of this AVR MCU?
A: It features 64KB of in-system programmable flash memory (32K x 16 bits).
Q: What package is the ATMEGA64A-ANR available in?
A: It comes in a 64-pin TQFP package, suitable for surface-mount assembly.
Q: Does it include a watchdog timer?
A: Yes, it includes a Watchdog Timer (WDT) along with Brown-out Detect/Reset, POR, and PWM features.