Microchip Technology ATTINY45-20MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.05 | $1.05 |
| 15+ | $1.01 | $15.15 |
| 25+ | $0.99 | $24.75 |
| 50+ | $0.94 | $47.00 |
| 100+ | $0.83 | $83.00 |
| N+ | $0.17 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny, Functional Safety (FuSa) |
| Packaging | Tray | |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| 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 ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-QFN-EP (4x4) |
| Package / Case | 20-WFQFN Exposed Pad |
| ROHS |  |
The ATTINY45-20MU from Microchip Technology is a high-speed 8-bit AVR microcontroller. It runs at up to 20MHz and offers 4KB of Flash memory with 256 bytes of SRAM. With a supply range of 2.7V to 5.5V, it supports both 3.3V and 5V logic. The 20-WFQFN package is extremely compact, making it perfect for space-limited applications.
- High speed: 20MHz AVR core executes most instructions in one cycle.
- Wide voltage: 2.7V-5.5V simplifies interfacing with various logic levels.
- Small size: 20-WFQFN package minimizes PCB area.
- Rich peripherals: PWM, ADC, and analog comparator in a tiny footprint.
PWM Dimming for LEDs
Hardware PWM at 20MHz provides high-resolution dimming without CPU overhead.
Small Robotics
6 I/O pins and 4KB Flash are enough for servo control in mini robots.
Battery Chargers
5V operation and ADC enable voltage/current monitoring in simple chargers.
Consumer Electronics
Low pin count and small package fit into e-cigarettes and vape mods.
Automotive Aftermarket
Wide voltage range handles 12V battery through regulator for interior lighting.
Development Boards
Popular for Arduino-compatible projects due to ease of programming.
- Q: What is the maximum speed?
- A: 20MHz at 5V operation.
- Q: What is the program memory size?
- A: 4KB of Flash (2K x 16-bit words).
- Q: What voltage does it need?
- A: 2.7V to 5.5V, compatible with 3.3V and 5V systems.
- Q: What package is this?
- A: 20-WFQFN exposed pad, very small for compact designs.
ATTINY45-20MU.pdf
- Q: What is the maximum speed?
- A: 20MHz at 5V operation.
- Q: What is the program memory size?
- A: 4KB of Flash (2K x 16-bit words).
- Q: What voltage does it need?
- A: 2.7V to 5.5V, compatible with 3.3V and 5V systems.
- Q: What package is this?
- A: 20-WFQFN exposed pad, very small for compact designs.
