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Description
ATTINY45-20PUMicrocontroller 8 Bit with 2 4 8K Byte Flash 20MHz 8PD Specifications Series AVR ATtiny, Functional Safety (FuSa) Core Processor AVR Core Size 8 Bit Speed 20 MHz Program Memory Type FLASH Program Memory Size 4 KB (2K 16) EEPROM Size 256 8 RAM Size 256 8 Number of I O 6 Data Converters A D 4 10 bit Connectivity USI Oscillator Type Internal Peripherals Brown out Detect Reset, POR, PWM, WDT Voltage Supply (Vcc Vdd) 2. 7 V ~ 5. 5 V Operating Temperature
Microcontroller 8 Bit with 2/4/8K Byte Flash 20MHz 8PD
Specifications
| Series | AVR® ATtiny, Functional Safety (FuSa) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20 MHz |
| Program Memory Type | FLASH |
| Program Memory Size | 4 KB (2K × 16) |
| EEPROM Size | 256 × 8 |
| RAM Size | 256 × 8 |
| Number of I/O | 6 |
| Data Converters | A/D 4 × 10-bit |
| Connectivity | USI |
| Oscillator Type | Internal |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 2.7 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Through Hole |
| Supplier Device Package | 8-PDIP |
| Package / Case | 8-DIP (0.300", 7.62 mm) |
Additional Information
| Device | Microcontroller |
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4.2 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
This ring is for any age. Cute.
Gem Type: Ruby, Ring Size: 5
I bought these for my granddaughter to go with the heart earrings I bought on Amazon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
★★★★★ 5
Ecstatic quality
Gem Type: Ruby, Ring Size: 7
The color fit beauty is stunning exactly. What’s shown in the picture!! I’m very happy very good quality and value money
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
★★★★★ 1
It’s cute ! But ….
Gem Type: Ruby, Ring Size: 9, Gem Type: Ruby, Ring Size: 9
It’s a beautiful ring. I only had it for a week and a half and it already tarnish and changing color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2025
★★★★★ 5
Stunning ring!
Gem Type: Ruby, Ring Size: 5
This ring looks so very expensive! It’s exactly what I wanted! The ruby stones are exquisite, and the gold band is delicate yet sturdy. The ring looks like a vintage piece of jewelry. It arrived earlier than I expected which was great! I highly recommend this lovely ring!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2024
★★★★★ 3
Bad quality
Gem Type: Ruby, Ring Size: 9
Bad quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025