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ATTINY45-20XU Breakout
MCU AVR 8BIT 4KB FLASH 12MHZ 8TSSOP
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Design a Custom BoardAbout This Component
8-bit AVR microcontroller with 4KB flash memory, 128 bytes SRAM, and 12 programmable I/O lines. Features dual timers (8-bit and 16-bit) with PWM, 10-bit 8-channel ADC, SPI/TWI serial interfaces, and internal oscillator. Operates from 1.8V to 5.5V with multiple low-power modes and is in-system programmable.
Package: TSSOP-8 (4.4×3mm) · 8 pins
Why does this need a breakout?
The 0.65mm pitch and compact 4.4×3mm form factor make hand soldering error-prone and require fine-pitch rework skills. A breakout board brings these pins to standard 0.1" spacing for breadboard prototyping, eliminating soldering difficulty while preserving direct access to op-amp or memory functionality without adapters.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Microchip Technology |
| Part Number | ATTINY45-20XU |
| Package | TSSOP-8 (4.4×3mm) |
| Pin Count | 8 |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Number of I/O | 6 |
| Program Memory Size | 4KB (2K x 16) |
| Speed | 20MHz |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x ATTINY45-20XU soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS