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ATTINY44A-PU

MCHPATTINY44A-PU

Microchip Technology
Closely related AVR family in a PDIP package offering a different balance of I/O and memory if you need alternate pin counts.
NRND1,153 in stock
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Overview

The ATTINY44A-PU is an 8-bit AVR RISC-based microcontroller featuring 4KB of flash memory and 12 general-purpose I/O lines in a user-friendly through-hole package. It balances low power consumption with a capable peripheral set, including a 10-bit ADC and a Universal Serial Interface (USI) for communication.

Why Choose This Part

The 14-pin PDIP package allows for easy prototyping on breadboards and hand-soldering without specialized equipment. It features a sophisticated 10-bit ADC with 12 differential channel pairs and programmable gain (1x/20x), providing high-resolution analog measurement in a small footprint.

Applications

Battery-Powered Sensors
Leverages low-power sleep modes and a wide operating voltage to extend life in remote sensing applications.
Legacy System Maintenance
The PDIP package is ideal for repairing or upgrading older industrial equipment that uses through-hole PCBs.
Interface Bridging
Uses the USI and 12 I/O pins to act as a bridge between different sensor protocols and a master controller.
PWM Control
Utilizes on-chip 8-bit and 16-bit timers to drive LEDs or small DC motors via pulse-width modulation.

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 Through Hole
Number of I/O 12
Core Processor AVR
Package / Case 14-DIP (0.300", 7.62mm)
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-PDIP
Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Getting Started

Development is typically performed using the Microchip Studio IDE and programmed via the SPI-based In-System Programming (ISP) interface using an AVRISP mkII or MPLAB PICkit 4. For hardware prototyping, the chip can be placed directly into a standard breadboard or a 14-pin DIP socket.

ATTINY44A Family

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

Part Number Package Temp Range Stock
ATTINY44A-PU (this part) DIP-14 -40degC ~ 85degC (.. 1,153
ATTINY44A-SSUR SOIC-14 -40degC ~ 85degC (.. 26,940
ATTINY44A-SSN SOIC-14 -40degC ~ 105degC .. 55,598
ATTINY44A-SSU SOIC-14 -40degC ~ 85degC (.. 8,188

Also Consider

ATTINY84A-PU MCHPMicrochip Technology - Offers a direct migration path with double the flash memory (8KB) and RAM in the same pin-compatible PDIP-14 package.
ATTINY45-20PU MCHPMicrochip Technology - A smaller 8-pin PDIP alternative if fewer I/O pins are required while maintaining similar AVR core features.
ATMEGA328P-PU MCHPMicrochip Technology - Provides significantly more memory and peripherals for projects that outgrow the Tiny series constraints while remaining through-hole compatible.
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