Microchip Technology ATTINY3226-MUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series tinyAVR® 2
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity I2C, IrDA, SPI, UART/USART
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 18
Program Memory Size 32KB (32K x 8)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 3K x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 15x12b
Oscillator Type External, 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 ATTINY3226-MUR is a low-power 8-bit AVR microcontroller in a 20-VFQFN package. It features 32KB Flash and 3KB RAM, running at up to 20MHz with a 1.8V to 5.5V supply. Integrated brown-out detection, POR, PWM, and WDT make it a versatile choice for battery-powered and space-constrained applications.

  • Ultra-low power consumption with 1.8V operation extends battery life in portable devices.
  • Large 32KB Flash for complex firmware without external memory.
  • Compact 3x3mm VFQFN package enables miniaturized product designs.
  • Rich peripheral set (ADC, PWM, WDT) reduces external components.

Wearable Health Monitors

The 1.8V operation and 3x3mm package enable tiny fitness trackers, with the 32KB Flash storing complex algorithms.

Smart Home Sensors

Low-power sleep modes and PWM allow battery-powered door/window sensors that transmit via RF, with the WDT preventing lockups.

Industrial Data Loggers

The 3KB RAM buffers sensor readings, while the 20MHz core processes them before writing to external memory.

Automotive Interior Lighting

With 5.5V operation and PWM, it controls RGB LED strips in dashboards, with the exposed pad aiding heat transfer.

Portable Instrumentation

The 32KB Flash supports calibration tables and user interfaces for handheld multimeters or thermometers.

IoT Edge Nodes

Its low power and integrated analog peripherals make it ideal for environmental monitoring nodes that wake periodically.

Q: What is the core architecture?
A: It uses the AVR 8-bit core with advanced peripherals for low-power operation.
Q: What is the maximum clock speed?
A: The device runs at up to 20MHz, balancing speed and power consumption.
Q: How much Flash memory is included?
A: It provides 32KB of Flash (32K x 8) for substantial application code.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V, supporting single-cell battery operation.
Q: What package is this variant?
A: It comes in a 20-VFQFN exposed pad package, measuring 3x3mm for compact designs.
Base Product Number : ATTINY3226
20MHz 32KB Flash 8-bit MCU ADC ATTINY3226 AVR core IoT low power PWM VFQFN-20 wearable
Q: What is the core architecture?
A: It uses the AVR 8-bit core with advanced peripherals for low-power operation.
Q: What is the maximum clock speed?
A: The device runs at up to 20MHz, balancing speed and power consumption.
Q: How much Flash memory is included?
A: It provides 32KB of Flash (32K x 8) for substantial application code.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V, supporting single-cell battery operation.
Q: What package is this variant?
A: It comes in a 20-VFQFN exposed pad package, measuring 3x3mm for compact designs.