ATTINY13A-SSU, 8 bit AVR Microcontroller 20MHz 1, 64kB, B Flash, 64B RAM, SPI 8-Pin SOIC


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Overview of ATTINY13A-SSU

The ATTINY13A-SSU is a high-performance, low-power 8-bit AVR microcontroller featuring 1KB of programmable flash memory and 64B of SRAM. It offers a compact and cost-effective solution for various embedded control applications.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • RESET: Reset pin
  • PCINT0: Pin Change Interrupt 0
  • PD0: Port D, Pin 0
  • PD1: Port D, Pin 1
  • PD2: Port D, Pin 2
  • PD3: Port D, Pin 3
  • VCC: Positive power supply
  • GND: Ground
  • PB3: Port B, Pin 3
  • PB2: Port B, Pin 2
  • PB1: Port B, Pin 1
  • PB0: Port B, Pin 0

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the ATTINY13A-SSU microcontroller for better understanding.

Key Features

  • High-Performance AVR Core: The ATTINY13A-SSU is based on a high-performance 8-bit AVR RISC architecture, providing efficient computation for embedded applications.
  • Low Power Consumption: This microcontroller is designed for low power operation, making it suitable for battery-powered devices.
  • Programmable Flash Memory: With 1KB of flash memory, the ATTINY13A-SSU allows for program storage and flexibility in firmware development.
  • SRAM for Data Storage: The 64B of SRAM enables temporary data storage during program execution, enhancing computational capabilities.
  • Peripheral Features: The ATTINY13A-SSU includes I/O pins, timers/counters, and communication interfaces for versatile connectivity.

Note: For detailed technical specifications, please refer to the ATTINY13A-SSU datasheet.


  • Embedded Control Systems: Ideal for controlling various electronic systems such as appliances, consumer electronics, and industrial equipment.
  • IoT Devices: Suitable for Internet of Things (IoT) applications requiring low-power and compact microcontroller solutions.
  • Sensor Interfacing: Used in sensor interfacing applications to collect and process sensory data for decision-making.


The ATTINY13A-SSU is a versatile microcontroller that offers high-performance computation, low power consumption, and programmable memory for embedded applications. It provides a reliable and efficient solution for a wide range of control and monitoring tasks.

Usage Guide

  • Power Supply: Connect VCC (Pin 8) to the positive power supply and GND (Pin 4) to ground.
  • Programming: Use the appropriate programming tools and software to flash firmware onto the microcontroller.
  • I/O Connections: Utilize the I/O pins for interfacing with external devices and sensors in your application.

Frequently Asked Questions

Q: What is the maximum clock speed of the ATTINY13A-SSU?
A: The ATTINY13A-SSU can operate at a maximum clock speed of 20MHz.

Q: Can I use the analog inputs for sensor readings?
A: Yes, the ATTINY13A-SSU features analog inputs that can be used for reading sensor values with the appropriate ADC configuration.


For similar functionalities, consider these alternatives to the ATTINY13A-SSU:

  • ATTINY25-SSU: A slightly higher-specification AVR microcontroller offering enhanced features for more complex applications.
  • ATTINY85-SSU: Another member of the ATTINY series with increased memory and I/O capabilities compared to the ATTINY13A-SSU.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Product Category 8-bit Microcontrollers - MCU RoHS Details
Core AVR Program Memory Size 1 kB
Data RAM Size 64 B Package / Case SOIC-8
Maximum Clock Frequency 20 MHz ADC Resolution 10 bit
Number of I/Os 6 I/O Supply Voltage - Min 1.8 V
Supply Voltage - Max 5.5 V Mounting Style SMD/SMT
Data Bus Width 8 bit Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 125 C Series ATtiny13A
Brand Microchip Technology Data RAM Type SRAM
Data ROM Size 64 B Data ROM Type EEPROM
Height 1.5 mm Interface Type SPI
Length 5 mm Moisture Sensitive Yes
Number of ADC Channels 4 Channel Number of Timers/Counters 1 Timer
Processor Series tinyAVR Product MCUs
Product Type 8-bit Microcontrollers - MCU Program Memory Type Flash
Factory Pack Quantity 100 Subcategory Microcontrollers - MCU
Tradename AVR Width 4 mm
Unit Weight 0.019048 oz

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