Skip to product information
1 of 1
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Regular price $1.32
Regular price $1.39 Sale price $1.32
Sale Sold out
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
Shipping calculated at checkout.
Quantity
Component Recycling

Request Quote / Inquiry

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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

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.
Base Product Number : ATTINY40
12MHz 4KB Flash 8-bit MCU AVR Battery Powered Lighting Microchip PWM SOIC-20 WDT
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.