Microchip Technology ATTINY427-MF
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.07 | $1.07 |
| 15+ | $1.04 | $15.60 |
| 25+ | $1.02 | $25.50 |
| 50+ | $0.96 | $48.00 |
| 100+ | $0.85 | $85.00 |
| N+ | $0.17 | Price Inquiry |
Request Quote / Inquiry
| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | tinyAVR® 2 |
| Packaging | Tray | NULL |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 22 |
| Program Memory Size | 4KB (4K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | 128 x 8 |
| RAM Size | 512 x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 15x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 24-VQFN (4x4) |
| Package / Case | 24-VFQFN Exposed Pad |
| ROHS |
The Microchip ATTINY427-MF is a low-power 8-bit AVR microcontroller in a compact 24-VFQFN package. It delivers 4KB flash and 512 bytes RAM, running at up to 20MHz. With a 1.8V to 5.5V supply range and integrated brown-out detection, POR, PWM, and WDT, it is engineered for reliable operation in space-constrained, battery-powered applications.
- Ultra-low power consumption: 1.8V operation extends battery life in portable designs.
- Wide voltage range (1.8V-5.5V): simplifies power supply design and supports 5V legacy systems.
- High-temperature tolerance (-40°C to 125°C): ensures reliability in industrial and automotive environments.
- Compact 24-VFQFN package: saves PCB space while providing exposed pad for thermal dissipation.
Battery-Powered Sensor Nodes
The 1.8V minimum supply and low-power sleep modes enable long battery life in IoT and remote monitoring devices.
Motor Control for Small Appliances
With PWM outputs and a 20MHz AVR core, it can generate precise control signals for brushless DC motors in fans or pumps.
LED Lighting Controllers
Multiple PWM channels allow smooth dimming and color mixing in RGB LED strips, with the 5.5V max supply supporting direct LED drive.
Industrial Automation I/O Modules
The -40°C to 125°C temperature range and robust peripherals (WDT, BOD) make it reliable for harsh factory floor environments.
Portable Medical Devices
Low power consumption and small 24-VFQFN package fit wearable health monitors that require continuous sensing.
Automotive Interior Lighting
Wide voltage tolerance and high-temperature rating support interior ambient lighting control in vehicles.
- Q: What is the operating voltage range of the ATTINY427-MF?
- A: The ATTINY427-MF operates from 1.8V to 5.5V, making it suitable for battery-powered and 5V systems.
- Q: What is the maximum clock speed?
- A: It runs at up to 20MHz with an AVR core, providing efficient processing for small control tasks.
- Q: What package is available?
- A: It comes in a 24-VFQFN exposed pad package, ideal for compact PCB designs with good thermal performance.
- Q: Does it include analog peripherals?
- A: Yes, it features PWM, brown-out detect, POR, and WDT, along with analog comparators and ADC.
- Q: What is the operating voltage range of the ATTINY427-MF?
- A: The ATTINY427-MF operates from 1.8V to 5.5V, making it suitable for battery-powered and 5V systems.
- Q: What is the maximum clock speed?
- A: It runs at up to 20MHz with an AVR core, providing efficient processing for small control tasks.
- Q: What package is available?
- A: It comes in a 24-VFQFN exposed pad package, ideal for compact PCB designs with good thermal performance.
- Q: Does it include analog peripherals?
- A: Yes, it features PWM, brown-out detect, POR, and WDT, along with analog comparators and ADC.

ATTINY427-MF.pdf