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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATtiny, Functional Safety (FuSa)
Packaging | NULL
Core Processor AVR
Core Size 8-Bit
Speed 16MHz
Connectivity USI
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O 6
Program Memory Size 4KB (2K x 16)
Program Memory Type FLASH
EEPROM Size 256 x 8
RAM Size 256 x 8
Voltage - Supply (Vcc/Vdd) 2.7V ~ 5.5V
Data Converters A/D 4x10b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade Automotive
Qualification AEC AEC-Q100
Mounting Type Surface Mount
Supplier Device Package 8-SOIC
Package / Case 8-SOIC (0.209", 5.30mm Width)
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATTINY45-15SZ is a powerful AVR 8-bit microcontroller housed in an 8-SOIC package. It offers 4KB of flash memory and 256 bytes of RAM, running at speeds up to 16MHz. Designed for efficiency, it operates from 2.7V to 5.5V and includes essential features like brown-out detection, POR, PWM, and WDT. Its extended temperature range makes it a reliable choice for automotive and industrial control applications.

  • High-Performance AVR Core: Executes most instructions in a single clock cycle, maximizing throughput at 16MHz.
  • Integrated Analog & Timing: Built-in PWM and brown-out detection reduce external component count.
  • Wide Temperature Range: -40°C to 125°C operation for demanding environments.
  • Compact SOIC Package: Easy to solder and suitable for space-limited PCB designs.

PWM LED Dimming

The integrated PWM channels and 16MHz speed enable smooth, high-frequency dimming for RGB LED applications.

Battery Management

Its low-voltage operation (2.7V) and brown-out detection make it suitable for monitoring and protecting lithium-ion battery packs.

Motor Speed Controllers

With robust PWM and WDT, it can drive small brushed DC motors with precise speed control in toys and fans.

Sensor Data Logging

The 4KB flash allows for storing calibration data and event logs in compact environmental sensors.

Automotive Interior Lighting

Rated for 125°C, it can control interior ambient lighting modules with advanced fading effects.

Smart Switch Interfaces

Its small SOIC package and high-speed I/O make it ideal for debouncing and controlling mechanical switches.

Q: What is the core architecture of the ATTINY45-15SZ?
A: It is based on the AVR 8-bit RISC architecture, offering high performance at low power.
Q: What is the maximum operating frequency?
A: It can run at up to 16MHz.
Q: What are the key integrated features?
A: It includes Brown-out Detection, Power-on Reset, PWM, and a Watchdog Timer.
Q: What is the memory size?
A: It has 4KB of flash program memory and 256 bytes of SRAM.
Base Product Number : ATTINY45
16MHz 8-bit MCU 8-SOIC ATTINY45 automotive AVR LED motor control PWM WDT
Q: What is the core architecture of the ATTINY45-15SZ?
A: It is based on the AVR 8-bit RISC architecture, offering high performance at low power.
Q: What is the maximum operating frequency?
A: It can run at up to 16MHz.
Q: What are the key integrated features?
A: It includes Brown-out Detection, Power-on Reset, PWM, and a Watchdog Timer.
Q: What is the memory size?
A: It has 4KB of flash program memory and 256 bytes of SRAM.