Microchip Technology ATTINY841-MMHR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Cut Tape (CT) | Tape & Reel (TR)
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 ATTINY841-MMHR is a low-power 8-bit AVR microcontroller from Microchip, optimized for compact, battery-powered applications. It provides 8KB flash and 512B RAM in a tiny 20-VFQFN package, running at up to 16MHz. With a 1.7V minimum supply and integrated PWM, it is ideal for wearable and portable devices.

  • 1.7V operation: Maximizes battery life in single-cell applications.
  • Small 20-QFN package: Enables miniaturized PCB designs.
  • 8KB flash: Sufficient for complex firmware in small devices.
  • Integrated PWM: Simplifies LED and motor control circuits.

Wearable Fitness Trackers

Ultra-low 1.7V operation and small QFN package enable compact, battery-efficient designs.

Consumer Electronics Remote Controls

PWM outputs drive IR LEDs for universal remote applications.

Smart Lighting Modules

8KB flash is sufficient for color-mixing algorithms in RGB LED drivers.

Battery Management Systems

Low power consumption suits monitoring cells in portable power banks.

Sensor Fusion Hubs

Multiple I/O pins connect accelerometers and gyroscopes for motion detection.

Miniature Drone Controllers

Compact size and PWM channels support small brushed motor drivers.

Q: What is the operating voltage?
A: It operates from 1.7V to 5.5V.
Q: What is the maximum speed?
A: The AVR core runs at up to 16MHz.
Q: How much flash memory does it have?
A: It includes 8KB of flash memory.
Q: What package is used?
A: It comes in a 20-pin VFQFN package with exposed pad.
Base Product Number : ATTINY841
16MHz 20-VFQFN 8-bit MCU AVR battery LED low power portable PWM wearable
Q: What is the operating voltage?
A: It operates from 1.7V to 5.5V.
Q: What is the maximum speed?
A: The AVR core runs at up to 16MHz.
Q: How much flash memory does it have?
A: It includes 8KB of flash memory.
Q: What package is used?
A: It comes in a 20-pin VFQFN package with exposed pad.