Microchip Technology ATTINY40-SUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.32 | $1.32 |
| 15+ | $1.28 | $19.20 |
| 25+ | $1.25 | $31.25 |
| 50+ | $1.18 | $59.00 |
| 100+ | $1.04 | $104.00 |
| N+ | $0.21 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATtiny |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 12MHz |
| Connectivity | I2C, SPI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 18 |
| Program Memory Size | 4KB (2K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 256 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 12x10b |
| 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 ATTINY40-SUR from Microchip Technology is a low-power 8-bit AVR microcontroller. It operates at up to 12MHz with 4KB flash and 256 bytes of RAM. Supporting a wide voltage range of 1.8V to 5.5V, it integrates brown-out detection, POR, PWM, and WDT. The 20-SOIC package is suitable for space-conscious designs requiring reliable, cost-effective control.
- Ultra-low power consumption: Ideal for battery-operated devices, extending operational life significantly.
- Wide voltage range (1.8V-5.5V): Provides design flexibility across different power supply rails.
- Compact 20-SOIC package: Balances pin count with board space, suitable for medium-density designs.
- Integrated WDT and BOD: Enhances system robustness without external supervisory ICs.
Battery-Powered Remote Controls
Low voltage operation down to 1.8V and low-power sleep modes extend battery life in consumer remotes.
LED Lighting Controllers
PWM outputs and 12MHz speed allow smooth dimming and color mixing in decorative lighting.
Sensor Signal Conditioning
Small 4KB flash is sufficient for reading analog sensors and outputting calibrated digital signals.
Small Appliances
Robust reset and WDT features ensure safe operation in blenders, fans, and coffee makers.
Automotive Aftermarket Accessories
Wide voltage range handles noisy 12V automotive environments with simple regulation.
Educational Prototyping
Simple AVR architecture and SOIC package make it easy to hand-solder for learning projects.
- Q: What is the core architecture of the ATTINY40-SUR?
- A: It uses the AVR core, operating at up to 12MHz, providing efficient 8-bit processing.
- Q: What is the operating voltage range?
- A: It supports 1.8V to 5.5V, making it flexible for both 3.3V and 5V systems.
- Q: How much program memory is available?
- A: It has 4KB of flash memory (2K x 16 bits) for application code.
- Q: What package does this MCU come in?
- A: It is offered in a 20-SOIC package with a 7.50mm body width.
- Q: Does it include a watchdog timer?
- A: Yes, it features a WDT along with brown-out detection and POR for system reliability.
- Q: What is the core architecture of the ATTINY40-SUR?
- A: It uses the AVR core, operating at up to 12MHz, providing efficient 8-bit processing.
- Q: What is the operating voltage range?
- A: It supports 1.8V to 5.5V, making it flexible for both 3.3V and 5V systems.
- Q: How much program memory is available?
- A: It has 4KB of flash memory (2K x 16 bits) for application code.
- Q: What package does this MCU come in?
- A: It is offered in a 20-SOIC package with a 7.50mm body width.
- Q: Does it include a watchdog timer?
- A: Yes, it features a WDT along with brown-out detection and POR for system reliability.

ATTINY40-SUR.pdf