Microchip Technology ATTINY25-20SSU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.92 | $0.92 |
| 15+ | $0.89 | $13.35 |
| 25+ | $0.87 | $21.75 |
| 50+ | $0.82 | $41.00 |
| 100+ | $0.73 | $73.00 |
| N+ | $0.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny, Functional Safety (FuSa) |
| Packaging | Tube | |
| 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 | 2KB (1K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 128 x 8 |
| RAM Size | 128 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 | 8-SOIC |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| ROHS |
The ATTINY25-20SSU is an 8-bit AVR microcontroller from Microchip, packaged in an 8-pin SOIC. It operates at 20MHz with 2KB flash and 128 bytes RAM, supporting 2.7V to 5.5V supply. Features include brown-out detection, power-on reset, PWM, and watchdog timer. This MCU is ideal for space-constrained, low-power applications requiring analog and timing control.
- AVR architecture – efficient C-code compilation and rich peripheral set.
- 20MHz operation – high throughput for time-critical tasks.
- 128B RAM – ample for complex state machines and buffers.
- SOIC package – suitable for automated SMT assembly.
Precision Analog Sensing
AVR core with 128B RAM handles 10-bit ADC readings for temperature and pressure sensors.
Small Form-Factor Wearables
8-SOIC package is compact for smart rings and fitness trackers.
PWM Audio Generation
20MHz speed enables simple tone generation for alarms and user feedback.
Battery-Powered Loggers
2.7V minimum voltage extends battery life in data-logging applications.
Automotive Peripheral Control
Brown-out detection ensures reliable operation in 12V vehicle environments.
Motor Commutation
Fast PWM updates support sensorless BLDC motor control in drones.
- Q: What core does it use?
- A: AVR 8-bit.
- Q: What is the speed?
- A: 20MHz.
- Q: What package?
- A: 8-SOIC.
- Q: Does it have PWM?
- A: Yes, integrated PWM.
- Q: What core does it use?
- A: AVR 8-bit.
- Q: What is the speed?
- A: 20MHz.
- Q: What package?
- A: 8-SOIC.
- Q: Does it have PWM?
- A: Yes, integrated PWM.

ATTINY25-20SSU.pdf