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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny
Packaging Tube |
Core Processor AVR
Core Size 8-Bit
Speed 12MHz
Connectivity I2C, SPI
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 12
Program Memory Size 2KB (1K x 16)
Program Memory Type FLASH
EEPROM Size -
RAM Size 128 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 14-SOIC
Package / Case 14-SOIC (0.154", 3.90mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY20-SSU is a low-power 8-bit AVR microcontroller in a 14-pin SOIC package. It operates at 12MHz with 2KB Flash and 128B RAM, from 1.8V to 5.5V. Integrated PWM, WDT, and reset functions make it a reliable choice for simple control and sensing applications.

  • Low power consumption – extends battery life in portable devices.
  • 1.8V to 5.5V operation – flexible power supply options.
  • 12MHz speed – adequate for most control tasks with low energy draw.
  • 2KB Flash – sufficient for small applications.
  • 14-SOIC package – easy to solder and widely available.

Low-Power IoT Sensors

1.8V operation and 12MHz speed enable battery-powered environmental monitoring nodes.

Consumer Electronics Accessories

Small 14-SOIC package fits into keyboards, mice, and game controllers for input processing.

Automotive Interior Switches

With -40°C to 85°C rating, it handles window and mirror controls reliably.

Simple LED Displays

PWM outputs drive 7-segment displays and RGB LEDs in small appliances.

Battery Chargers

2KB Flash is enough for charge state machines and LED indication.

Security Systems

WDT ensures fail-safe operation in door sensors and alarm keypads.

Q: What is the operating voltage range?
A: It operates from 1.8V to 5.5V, suitable for low-power and standard logic.
Q: What is the maximum speed?
A: The ATTINY20-SSU runs at 12MHz, balancing power and performance.
Q: How much Flash and RAM does it have?
A: It has 2KB Flash (1K x 16) and 128 bytes of RAM.
Q: What package is this?
A: It comes in a 14-pin SOIC (0.154" width) package.
Q: Does it include PWM and WDT?
A: Yes, it includes PWM, WDT, Brown-out Reset, and Power-on Reset.
Base Product Number : ATTINY20
128B RAM 12MHz 2KB Flash 8-bit MCU ATTINY20 AVR core consumer IoT low-power PWM SOIC-14 WDT
Q: What is the operating voltage range?
A: It operates from 1.8V to 5.5V, suitable for low-power and standard logic.
Q: What is the maximum speed?
A: The ATTINY20-SSU runs at 12MHz, balancing power and performance.
Q: How much Flash and RAM does it have?
A: It has 2KB Flash (1K x 16) and 128 bytes of RAM.
Q: What package is this?
A: It comes in a 14-pin SOIC (0.154" width) package.
Q: Does it include PWM and WDT?
A: Yes, it includes PWM, WDT, Brown-out Reset, and Power-on Reset.