Microchip Technology ATTINY861-20SUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.57 | $2.57 |
| 15+ | $2.48 | $37.20 |
| 25+ | $2.43 | $60.75 |
| 50+ | $2.30 | $115.00 |
| 100+ | $2.03 | $203.00 |
| N+ | $0.41 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny |
| Packaging | Cut Tape (CT) | NULL |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 16 |
| Program Memory Size | 8KB (4K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 512 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 2.7V ~ 5.5V |
| Data Converters | A/D 11x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-SOIC |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) |
| ROHS |
The ATTINY861-20SUR is a compact 8-bit AVR MCU from Microchip, offering 8KB Flash and 512B SRAM in a space-saving 20-SOIC package. It runs at up to 20MHz with a 2.7-5.5V supply, featuring on-chip BOR, POR, PWM, and WDT. Ideal for cost-effective control applications requiring small footprint and reliable operation.
- Small 20-SOIC package – saves board space in compact designs.
- 20MHz performance – sufficient for real-time control tasks.
- Wide voltage range (2.7-5.5V) – flexible power supply options.
- Integrated PWM – simplifies motor and lighting control.
Small Appliance Control
8KB Flash and PWM handle simple motor or heater control loops.
LED Lighting Systems
PWM channels enable dimming and color mixing in smart bulbs.
Battery Chargers
Voltage monitoring and BOR ensure safe charging profiles.
Sensor Interfaces
Fast wake-up and low power suit periodic environmental sensing.
Automotive Aftermarket
5.5V tolerance and WDT provide robust operation in vehicle modules.
Industrial Timers
Reliable timing with WDT in harsh factory environments.
- Q: What is the max speed?
- A: 20MHz at 2.7-5.5V.
- Q: How much Flash memory?
- A: 8KB (4K x 16) with 512B SRAM.
- Q: What package is this?
- A: 20-SOIC wide body (7.5mm).
- Q: Does it have PWM?
- A: Yes, multiple PWM channels for motor/light control.
- Q: What is the max speed?
- A: 20MHz at 2.7-5.5V.
- Q: How much Flash memory?
- A: 8KB (4K x 16) with 512B SRAM.
- Q: What package is this?
- A: 20-SOIC wide body (7.5mm).
- Q: Does it have PWM?
- A: Yes, multiple PWM channels for motor/light control.

ATTINY861-20SUR.pdf