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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Cut Tape (CT) | NULL
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
Connectivity -
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 6
Program Memory Size 1KB (512 x 16)
Program Memory Type FLASH
EEPROM Size 64 x 8
RAM Size 64 x 8
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V
Data Converters A/D 4x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 20-QFN-EP (4x4)
Package / Case 20-WFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY13A-MUR is an 8-bit AVR microcontroller with a 20MHz core, 1KB flash, and 64 bytes RAM. It operates from 1.8V to 5.5V and is rated for -40°C to 85°C. Integrated Brown-out Detect/Reset, POR, PWM, and WDT provide robust operation. The 20-WFQFN package offers a compact footprint for space-constrained designs.

  • Low voltage operation (1.8V) – ideal for battery-powered devices.
  • 20MHz AVR core – high performance for 8-bit applications.
  • Integrated brown-out detection – enhances system reliability.
  • 20-WFQFN package – excellent thermal and space characteristics.
  • Wide voltage range – compatible with 3.3V and 5V systems.

LED Lighting Effects

The 20MHz AVR core and PWM channels drive RGB LEDs for decorative lighting, with low power for battery operation.

Battery-Powered Toys

1.8V minimum supply allows direct operation from two AA batteries, with WDT preventing lockups.

Sensor Calibration Modules

1KB flash stores calibration coefficients for analog sensors, using POR for reliable startup.

Small Motor Drivers

PWM controls DC motors in drones or robots, while brown-out detection protects against battery sag.

Smart Home Buttons

Compact 20-WFQFN fits in wireless buttons, with low-power sleep modes extending battery life.

Educational Kits

Simple architecture and 8-pin compatibility make it ideal for learning embedded programming.

Q: What is the core architecture?
A: It uses the AVR 8-bit core running at up to 20MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: How much flash memory is available?
A: It has 1KB (512 x 16) flash memory.
Q: Does it include brown-out detection?
A: Yes, it has Brown-out Detect/Reset, POR, PWM, and WDT.
Q: What package is offered?
A: It comes in a 20-WFQFN exposed pad package.
Base Product Number : ATTINY13A
1KB flash 20MHz 64B RAM 8-bit MCU AVR brown-out LED low power POR PWM sensors toys WDT WFQFN-20
Q: What is the core architecture?
A: It uses the AVR 8-bit core running at up to 20MHz.
Q: What is the supply voltage range?
A: It operates from 1.8V to 5.5V.
Q: How much flash memory is available?
A: It has 1KB (512 x 16) flash memory.
Q: Does it include brown-out detection?
A: Yes, it has Brown-out Detect/Reset, POR, PWM, and WDT.
Q: What package is offered?
A: It comes in a 20-WFQFN exposed pad package.