Microchip Technology ATTINY25-20SSUR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny, Functional Safety (FuSa)
Packaging Cut Tape (CT) | Tape & Reel (TR)
Core Processor AVR
Core Size 8-Bit
Speed 20MHz
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 ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 8-SOIC
Package / Case 8-SOIC (0.154", 3.90mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY25-20SSUR is a compact 8-bit AVR microcontroller in an 8-SOIC package. It offers 2KB Flash and 128B SRAM, running at up to 20MHz. With a 2.7V to 5.5V supply range, it is designed for simple control tasks. Its integrated PWM, brown-out detection, and watchdog timer provide essential functions for cost-effective designs. This MCU is a reliable choice for basic embedded control in space-limited applications.

  • Minimal Footprint: 8-SOIC package fits into tight PCB layouts.
  • Cost-Effective: 2KB Flash is sufficient for basic control algorithms.
  • Fast Execution: 20MHz clock for responsive real-time tasks.
  • Integrated PWM: Directly drives LEDs and small motors without extra ICs.
  • Reliable Operation: BOR and WDT prevent glitches in noisy environments.

Small Motor Drivers

With 20MHz speed and PWM, it can drive small DC motors in toys and mini fans with precise speed control.

LED Dimming Modules

Two PWM channels allow independent brightness control for dual-color LED indicators.

Simple Timers and Controllers

Its small SOIC-8 footprint is ideal for replacing discrete logic in timing circuits and appliance timers.

Sensor Signal Conditioning

Built-in ADC reads analog sensors like thermistors and potentiometers for basic monitoring.

Power Supply Sequencing

BOR and WDT ensure proper startup and shutdown sequences in multi-rail power supplies.

Remote Keyless Entry

Low power consumption and small size suit battery-operated key fob transmitters.

Q: What is the operating voltage?
A: It operates from 2.7V to 5.5V, suitable for 3.3V and 5V systems.
Q: What is the maximum speed?
A: The AVR core runs at up to 20MHz.
Q: How much program memory does it have?
A: It includes 2KB (1K x 16) Flash and 128 bytes of SRAM.
Q: What package is this?
A: It is an 8-SOIC (0.154", 3.90mm width) package.
Q: Does it support PWM?
A: Yes, it has two PWM channels for motor and light control.
Base Product Number : ATTINY25
128B SRAM 20MHz 2KB Flash 8-bit MCU ATtiny AVR LED low cost motor PWM SOIC-8 timer
Q: What is the operating voltage?
A: It operates from 2.7V to 5.5V, suitable for 3.3V and 5V systems.
Q: What is the maximum speed?
A: The AVR core runs at up to 20MHz.
Q: How much program memory does it have?
A: It includes 2KB (1K x 16) Flash and 128 bytes of SRAM.
Q: What package is this?
A: It is an 8-SOIC (0.154", 3.90mm width) package.
Q: Does it support PWM?
A: Yes, it has two PWM channels for motor and light control.