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Product attributes Property Value
Manufacturer Microchip Technology
Product Series tinyAVR™ 1, Functional Safety (FuSa)
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 16MHz
Connectivity I2C, IrDA, LINbus, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, WDT
Number of I/O 18
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size 128 x 8
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Data Converters A/D 12x10b; D/A 1x8b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 20-VQFN (3x3)
Package / Case 20-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATTINY816-MFR is a high-temperature AVR 8-bit microcontroller from Microchip in a 20-VFQFN package. It operates at 16MHz with 8KB flash and 512B SRAM, supporting 2.7V to 5.5V. With PWM, watchdog timer, and 125°C rating, it is designed for robust industrial and automotive applications.

  • Extended temperature range (125°C) – reliable in harsh conditions.
  • 8KB flash – ample code space for complex applications.
  • VFQFN package – improved thermal dissipation.
  • Integrated PWM and WDT – reduces external components.

Automotive Control Units

125°C rating handles under-hood temperatures in engine management.

Industrial Automation

8KB flash stores complex routines for PLC and robotics interfaces.

HVAC Systems

High-temperature tolerance suits compressor and fan controllers.

Power Tools

Robust operation in vibration and heat-heavy environments.

LED Lighting Drivers

PWM outputs manage current in high-power lighting.

Battery Management

Voltage monitoring and protection in 2.7-5.5V systems.

Q: What is the max operating temperature?
A: 125°C, suitable for high-temperature environments.
Q: What is the memory capacity?
A: 8KB flash and 512B SRAM.
Q: What voltage is required?
A: 2.7V to 5.5V.
Q: What package is used?
A: 20-VFQFN exposed pad for thermal performance.
Base Product Number : ATTINY816
16MHz 8-bit MCU ATTINY816 automotive AVR high temperature industrial Microchip PWM VFQFN-20
Q: What is the max operating temperature?
A: 125°C, suitable for high-temperature environments.
Q: What is the memory capacity?
A: 8KB flash and 512B SRAM.
Q: What voltage is required?
A: 2.7V to 5.5V.
Q: What package is used?
A: 20-VFQFN exposed pad for thermal performance.