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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Tray |
Core Processor AVR
Core Size 8-Bit
Speed 12MHz
Connectivity I2C, SPI
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 12
Program Memory Size 2KB (1K x 16)
Program Memory Type FLASH
EEPROM Size -
RAM Size 128 x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 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 20-VQFN (3x3)
Package / Case 20-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY20-MMH is a high-performance 8-bit AVR microcontroller in a tiny 20-VFQFN package. It delivers 2KB of Flash and 128 bytes of SRAM, running at up to 12MHz. With a wide 1.8V to 5.5V supply range and integrated brown-out detection, it ensures stable operation in demanding environments. Its compact size and rich peripheral set make it a versatile choice for space-constrained embedded designs.

  • Ultra-compact footprint: The 20-VFQFN package saves PCB space for miniaturized products.
  • Wide voltage range: 1.8V to 5.5V support simplifies power supply design.
  • Integrated safety features: Brown-out reset and watchdog timer enhance system reliability.
  • Low-power operation: Ideal for battery-powered and energy-harvesting applications.

Compact Sensor Nodes

The 20-VFQFN package and low 1.8V operation allow for dense, low-power sensor interfaces in IoT edge devices.

Battery Management

With a 1.8V minimum supply and multiple sleep modes, it extends battery life in portable monitoring systems.

Motor Control

Its PWM channels and 12MHz AVR core handle simple brushless DC motor commutation in small drones.

LED Lighting

Use the PWM outputs to drive RGB LEDs with smooth dimming, while the WDT ensures fail-safe operation.

Industrial Sensing

The -40°C to 85°C range and brown-out reset make it reliable for factory floor temperature and pressure sensors.

Wearable Devices

Its small footprint and low power consumption are ideal for fitness trackers and medical patches.

Q: What is the operating voltage range of the ATTINY20-MMH?
A: It operates from 1.8V to 5.5V, making it suitable for battery-powered applications.
Q: What is the maximum clock speed?
A: The AVR core runs at up to 12MHz.
Q: How much Flash memory does it have?
A: It provides 2KB of Flash program memory and 128 bytes of SRAM.
Q: What package is available?
A: It comes in a compact 20-VFQFN exposed pad package.
Q: Does it include a watchdog timer?
A: Yes, it features a WDT along with POR and brown-out detection.
Base Product Number : ATTINY20
128B SRAM 12MHz 2KB Flash 8-bit MCU AVR industrial low power PWM RISC VFQFN-20 WDT wearable
Q: What is the operating voltage range of the ATTINY20-MMH?
A: It operates from 1.8V to 5.5V, making it suitable for battery-powered applications.
Q: What is the maximum clock speed?
A: The AVR core runs at up to 12MHz.
Q: How much Flash memory does it have?
A: It provides 2KB of Flash program memory and 128 bytes of SRAM.
Q: What package is available?
A: It comes in a compact 20-VFQFN exposed pad package.
Q: Does it include a watchdog timer?
A: Yes, it features a WDT along with POR and brown-out detection.