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Product attributes Property Value
Manufacturer Microchip Technology
Product Series tinyAVR™ 1, Functional Safety (FuSa)
Packaging Tray |
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
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) 1.8V ~ 5.5V
Data Converters A/D 12x10b; D/A 1x8b
Oscillator Type Internal
Operating Temperature -40°C ~ 105°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 is a versatile AVR MCU from Microchip, offering 8KB flash and 512B RAM in a 20-pin VFQFN package. It operates from 1.8V to 5.5V at up to 20MHz, with integrated PWM, WDT, and brown-out reset. Designed for industrial and consumer applications, it balances performance and power efficiency.

  • 8KB flash: ample space for complex firmware.
  • 20MHz speed: fast execution for time-critical tasks.
  • Wide voltage range: flexible power supply options.
  • Compact QFN package: ideal for space-constrained PCBs.
  • Reliable operation: WDT and brown-out reset prevent system failures.

Industrial Automation

8KB flash allows complex control algorithms for PLCs and robotic arms.

Smart Agriculture

Low power and 20MHz speed enable soil sensors and irrigation controllers.

Consumer Electronics

PWM and 512B RAM support haptic feedback in game controllers.

Automotive Aftermarket

105°C rating suits under-hood sensors and actuators.

IoT Edge Nodes

Efficient processing and low voltage make it ideal for battery-powered sensors.

Power Management

WDT and brown-out reset ensure safe operation in DC-DC converters.

Q: What is the flash memory size?
A: It has 8KB of flash (8K x 8) for larger programs.
Q: What is the maximum speed?
A: The AVR core runs at up to 20 MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: What package is this?
A: It comes in a 20-pin VFQFN package with exposed pad.
Q: Does it have a watchdog timer?
A: Yes, it includes WDT for system reliability.
Base Product Number : ATTINY816
20MHz 8-bit MCU 8KB flash ATtiny AVR industrial IoT PWM QFN
Q: What is the flash memory size?
A: It has 8KB of flash (8K x 8) for larger programs.
Q: What is the maximum speed?
A: The AVR core runs at up to 20 MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: What package is this?
A: It comes in a 20-pin VFQFN package with exposed pad.
Q: Does it have a watchdog timer?
A: Yes, it includes WDT for system reliability.