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ATTINY45-20PU

MCHPATTINY45-20PU

Microchip Technology
Same AVR family in PDIP-8 with smaller flash for slightly lower-cost or lower-resource applications.
NRND5,989 in stock
Datasheet Digi-Key Mouser Compare Prices

Overview

The ATTINY45-20PU is a high-performance, low-power 8-bit AVR RISC-based microcontroller featuring 4KB of flash memory and 256B of SRAM. This variant comes in a breadboard-friendly 8-pin PDIP package and supports clock speeds up to 20MHz at higher supply voltages.

Why Choose This Part

It offers an excellent balance of I/O capability and small footprint, featuring a unique high-speed timer capable of 64MHz operation for high-resolution PWM. The 20x differential gain stage on the ADC allows for measuring small signals without external operational amplifiers.

Applications

Compact Sensor Nodes
Utilizing the 10-bit ADC and differential gain stages for localized analog signal conditioning in space-constrained designs.
LED Lighting Controllers
Implementing dual PWM channels for dimming and color control in small architectural or decorative lighting fixtures.
Motor Control
Leveraging the high-speed 8-bit timer and programmable dead-time generator for simple DC or stepper motor driving tasks.
Legacy Equipment Maintenance
Replacing obsolete logic or simple microcontrollers in existing through-hole PCB designs without requiring a complete redesign.

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, WDT
Connectivity USI
Mounting Type Through Hole
Number of I/O 6
Core Processor AVR
Package / Case 8-DIP (0.300", 7.62mm)
Data Converters A/D 4x10b
Oscillator Type Internal
Program Memory Size 4KB (2K x 16)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-PDIP
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V

Getting Started

Develop using the Microchip Studio IDE or the XC8 compiler and program the device via the SPI interface using an AVRISP mkII or MPLAB SNAP programmer. For prototyping, the PDIP package can be directly inserted into standard breadboards or 8-pin DIP sockets.

Part of ATtiny family » ATTINY45

ATTINY45 Family

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

Part Number Package Stock
ATTINY45-20PU (this part) DIP-8 5,989
ATTINY45-20SUR SOIC-8 16,292
ATTINY45-20SU SOIC-8 21,861

Also Consider

ATTINY85-20PU MCHPMicrochip Technology - Provides double the flash memory (8KB) and RAM (512B) in the same pin-compatible PDIP-8 package.
ATTINY25-20PU MCHPMicrochip Technology - Lower cost alternative with 2KB of flash for very simple control applications.
ATMEGA328P-PU MCHPMicrochip Technology - Offers significantly more I/O pins and memory if the 8-pin constraint is not a requirement.

Categories

Microcontrollers > AVR