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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 12MHz
Connectivity I2C, SPI
Peripherals Brown-out Detect/Reset, POR, WDT
Number of I/O 24
Program Memory Size 4KB (2K x 16)
Program Memory Type FLASH
EEPROM Size 64 x 8
RAM Size 256 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 28-VQFN (4x4)
Package / Case 28-VFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY48-MMHR is a compact 8-bit AVR MCU running at 12MHz with 4KB flash and 256 bytes RAM. Its 1.8V-5.5V supply range and 28-VFQFN package make it a cost-effective choice for simple control tasks.

  • Wide voltage range (1.8V-5.5V): Works with both 3.3V and 5V systems.
  • Small 4KB flash: Ideal for simple, cost-sensitive applications.
  • Integrated brown-out detection: Enhances reliability in unstable power conditions.
  • Compact VFQFN package: Minimizes PCB footprint.

Simple Motor Drivers

12MHz AVR core with PWM provides basic speed control for small DC motors.

Battery Chargers

Wide voltage range (1.8V-5.5V) allows direct monitoring of battery voltage.

LED Blinkers

Low pin count and small flash are perfect for simple lighting effects.

Sensor Interfaces

256 bytes RAM is sufficient for basic I2C/SPI sensor readouts.

Power Tools

Brown-out detection ensures safe operation in high-vibration environments.

Consumer Electronics

Compact VFQFN package fits in small form-factor devices like e-cigarettes.

Q: What is the maximum clock speed?
A: 12MHz.
Q: How much flash memory is available?
A: 4KB.
Q: What is the supply voltage range?
A: 1.8V to 5.5V.
Q: What package is this?
A: 28-VFQFN with exposed pad.
Base Product Number : ATTINY48
12MHz 256B RAM 4KB Flash 8-bit MCU AVR Brown-out Consumer PWM Simple Control VFQFN-28 WDT
Q: What is the maximum clock speed?
A: 12MHz.
Q: How much flash memory is available?
A: 4KB.
Q: What is the supply voltage range?
A: 1.8V to 5.5V.
Q: What package is this?
A: 28-VFQFN with exposed pad.