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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 16MHz
Connectivity I2C, SPI, UART/USART
Peripherals PWM
Number of I/O 12
Program Memory Size 8KB (8K x 8)
Program Memory Type FLASH
EEPROM Size 512 x 8
RAM Size 512 x 8
Voltage - Supply (Vcc/Vdd) 1.7V ~ 5.5V
Data Converters A/D 12x10b
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 ATTINY841-MMH is a low-power 8-bit AVR MCU with a 16MHz core. It offers 8KB flash and 512B RAM in a compact 20-VFQFN package. Operating from 1.7V to 5.5V, it is optimized for battery-powered and space-constrained applications requiring PWM control.

  • Ultra-low voltage operation (1.7V): Extends battery life in portable devices.
  • Compact 20-QFN package: Saves board space for miniaturized designs.
  • 8KB flash memory: Ample space for application code and bootloaders.
  • Integrated PWM: Reduces external components for motor or LED control.

Battery-Powered Sensors

The 1.7V minimum supply allows operation from a single alkaline cell, and 16MHz speed enables quick wake-up and processing.

LED Lighting Control

PWM outputs provide smooth dimming and color mixing in compact 20-QFN packages.

Consumer Electronics Haptics

Small form factor and 8KB flash are sufficient for driving vibration motors with custom patterns.

Smart Home Thermostats

Low power consumption extends battery life, while 512B RAM handles sensor calibration data.

Wearable Fitness Trackers

The tiny 20-VFQFN package fits into slim wearables, and the wide voltage range supports Li-ion batteries.

Automotive Interior Lighting

With -40°C to 85°C operation, it reliably controls ambient lighting in vehicle cabins.

Q: What is the core speed of the ATTINY841-MMH?
A: It runs at 16MHz, balancing power consumption and processing capability.
Q: What is the program memory size?
A: It has 8KB of flash memory, suitable for small to medium firmware.
Q: What is the operating voltage range?
A: It operates from 1.7V to 5.5V, ideal for battery-powered devices.
Q: Does it have PWM channels?
A: Yes, it includes PWM peripherals for driving LEDs or motors.
Base Product Number : ATTINY841
16MHz 512B RAM 8-bit AVR 8KB Flash ATTINY841 AVR core Battery Low Power PWM QFN-20 Wearable
Q: What is the core speed of the ATTINY841-MMH?
A: It runs at 16MHz, balancing power consumption and processing capability.
Q: What is the program memory size?
A: It has 8KB of flash memory, suitable for small to medium firmware.
Q: What is the operating voltage range?
A: It operates from 1.7V to 5.5V, ideal for battery-powered devices.
Q: Does it have PWM channels?
A: Yes, it includes PWM peripherals for driving LEDs or motors.