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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny, Functional Safety (FuSa)
Packaging | NULL
Core Processor AVR
Core Size 8-Bit
Speed 16MHz
Connectivity USI
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 6
Program Memory Size 2KB (1K x 16)
Program Memory Type FLASH
EEPROM Size 128 x 8
RAM Size 128 x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Data Converters A/D 4x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade Automotive
Qualification AEC AEC-Q100
Mounting Type Surface Mount
Supplier Device Package 20-WQFN (4x4)
Package / Case 20-WFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The ATTINY25-15MZ is a Microchip 8-bit AVR MCU running at 16MHz. It provides 2KB flash and 128 bytes RAM in a 20-WFQFN package. With a supply range of 2.7V to 5.5V and operation from -40°C to 125°C, it includes PWM, WDT, brown-out detect, and POR.

  • High temperature tolerance: 125°C for automotive and industrial use.
  • Wide voltage range: 2.7V to 5.5V simplifies power design.
  • Fast 16MHz AVR core: responsive for real-time control.
  • Compact WFQFN package: ideal for space-constrained tools.

Automotive Sensors

Read temperature or pressure sensors in engine bays. The 125°C rating handles extreme heat, and the 5.5V supply tolerance works with unregulated automotive power.

Power Tools

Control brushless motor commutation. The 16MHz AVR core provides fast PWM updates, and the small 20-WFQFN package fits inside tool handles.

Industrial Actuators

Drive solenoids or valves in harsh environments. The brown-out detect prevents erratic behavior during supply dips, and the WDT recovers from firmware faults.

LED Lighting Drivers

Implement constant-current control for high-brightness LEDs. The PWM module operates at high frequency to minimize flicker, and the wide voltage range supports various input rails.

Battery Management

Monitor cell voltages in multi-cell packs. The 2.7V minimum allows operation from a single cell, and the 128B RAM stores calibration data for accurate SOC estimation.

Avionics Modules

Handle discrete I/O in non-critical systems. The extended temperature range and robust AVR core make it suitable for cabin or cargo area electronics.

Q: What is the core?
A: AVR 8-bit core at 16MHz.
Q: What voltage does it need?
A: 2.7V to 5.5V.
Q: How much flash memory?
A: 2KB (1K x 16).
Q: What is the package?
A: 20-WFQFN exposed pad.
Q: What temperature range?
A: -40°C to 125°C.
Base Product Number : ATTINY25-15MZ
-40C to 125C 128B RAM 16MHz 20-WFQFN 2KB flash 8-bit MCU automotive AVR industrial PWM WDT
Q: What is the core?
A: AVR 8-bit core at 16MHz.
Q: What voltage does it need?
A: 2.7V to 5.5V.
Q: How much flash memory?
A: 2KB (1K x 16).
Q: What is the package?
A: 20-WFQFN exposed pad.
Q: What temperature range?
A: -40°C to 125°C.