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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 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 6x10b
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 ATTINY48-MMU is an 8-bit AVR microcontroller from Microchip, offering 4KB flash and 256 bytes RAM. It operates from 1.8V to 5.5V at up to 12MHz, with integrated brown-out reset, POR, and WDT. The 28-VFQFN package provides a compact yet thermally efficient solution for industrial and consumer control applications.

  • Wide voltage range (1.8-5.5V) – simplifies mixed-voltage system design.
  • Low power consumption – extends battery life in portable devices.
  • Robust reset features – ensures reliable startup in noisy environments.
  • 28-pin VFQFN – balances I/O count with small footprint.

Automotive Lighting Control

5.5V operation and WDT ensure robust operation in vehicle interior LED modules.

Industrial Sensor Nodes

Wide voltage range simplifies interfacing with 3.3V or 5V sensors in factory automation.

Consumer Appliances

Reliable brown-out detection prevents erratic behavior in washing machine controllers.

Battery Management Systems

Low-power sleep modes and 1.8V operation suit cell monitoring in portable power tools.

HVAC Thermostats

28-pin package provides enough I/O for temperature sensors and relay drivers.

Security Keypads

Fast wake-up from sleep and POR ensure responsive entry systems.

Q: What is the supply voltage range?
A: 1.8V to 5.5V, compatible with both 3.3V and 5V systems.
Q: What is the maximum clock speed?
A: 12MHz, suitable for moderate-speed control applications.
Q: How much flash memory is available?
A: 4KB (2K x 16), enough for small firmware.
Q: What package does it come in?
A: 28-VFQFN exposed pad, offering good thermal performance.
Base Product Number : ATTINY48
12MHz 8-bit MCU ATtiny AVR consumer industrial low-power Microchip POR VFQFN WDT
Q: What is the supply voltage range?
A: 1.8V to 5.5V, compatible with both 3.3V and 5V systems.
Q: What is the maximum clock speed?
A: 12MHz, suitable for moderate-speed control applications.
Q: How much flash memory is available?
A: 4KB (2K x 16), enough for small firmware.
Q: What package does it come in?
A: 28-VFQFN exposed pad, offering good thermal performance.