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ATTINY44A-SSUR

MCHPATTINY44A-SSUR

Microchip Technology
AVR AVR® ATtiny Microcontroller IC 8-Bit 20MHz 4KB (2K x 16) FLASH 14-SOIC
Active26,940 in stock
Datasheet Digi-Key Compare Prices

Overview

The Microchip ATTINY44A-SSUR is an 8-bit AVR microcontroller operating at up to 20MHz. It features 4KB of in-system programmable Flash, 256 bytes of SRAM, and 256 bytes of EEPROM. This device offers a balance of performance and low power consumption for embedded applications.

Why Choose This Part

This microcontroller provides a good entry point for AVR development with its familiar architecture and rich peripheral set including PWM, ADC, and a Universal Serial Interface (USI). Its compact 14-SOIC package and low power modes make it suitable for space-constrained and battery-operated designs. The 20MHz operating speed allows for reasonably complex control tasks.

Applications

Small Embedded Control Systems
Ideal for basic control tasks in appliances, toys, or utility meters where a compact, low-cost solution is required.
Battery-Powered Devices
Suitable for applications requiring extended battery life, utilizing its various low-power modes and standby current of 4uA.
Sensor Interface Nodes
Can be used to read and process data from simple sensors, leveraging its 12 I/O pins and built-in ADC.
LED Lighting Control
Effective for driving and controlling LEDs with its PWM capabilities for dimming or simple pattern generation.
Human-Machine Interface (HMI)
Capable of handling simple button inputs and displaying status on small character LCDs or LED indicators.

Key Specifications

Speed 20MHz
RAM Size 256 x 8
Core Size 8-Bit
EEPROM Size 256 x 8
Peripherals Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Connectivity USI
Mounting Type Surface Mount
Number of I/O 12
Core Processor AVR
Package / Case 14-SOIC (0.154", 3.90mm Width)
Data Converters A/D 8x10b
Oscillator Type Internal
Program Memory Size 4KB (2K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 14-SOIC
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

To get started with the ATTINY44A, engineers can use Microchip Studio (formerly Atmel Studio) IDE for development. The device is programmable in-system using an AVR ISP programmer like the Atmel-ICE or USBasp. Breadboard prototyping is feasible given its SOIC package, often with a simple SOIC-to-DIP adapter.

ATTINY44A Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Temp Range Stock
ATTINY44A-SSUR (this part) SOIC-14 -40degC ~ 85degC (.. 26,940
ATTINY44A-PU DIP-14 -40degC ~ 85degC (.. 1,153
ATTINY44A-SSN SOIC-14 -40degC ~ 105degC .. 55,598
Also available as: ATTINY44A-SSU
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