Microchip Technology ATTINY427-MFR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.10 | $1.10 |
| 15+ | $1.07 | $16.05 |
| 25+ | $1.04 | $26.00 |
| 50+ | $0.99 | $49.50 |
| 100+ | $0.87 | $87.00 |
| N+ | $0.17 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | tinyAVR® 2 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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-MFR is an 8-bit AVR microcontroller with 4KB Flash and 512B SRAM. It operates at 20MHz from 1.8V to 5.5V in a 24-VFQFN package. With PWM, brown-out reset, POR, and WDT, it is designed for reliable control in extreme temperatures.
- Extended temperature range for industrial/automotive
- 20MHz speed with low 1.8V operation
- Compact 24-VFQFN package
- Integrated safety features (BOD, POR, WDT)
Automotive Sensor Interface
125°C rating and 20MHz speed allow real-time processing of temperature or pressure sensors in engine bays.
Industrial Actuator
4KB Flash is sufficient for PID control loops; WDT ensures fail-safe operation.
Smart Lighting
PWM output with 1.8V-5.5V range drives LED drivers in architectural lighting.
Portable Instrument
Low power consumption and small VFQFN package fit handheld multimeters.
Safety Switch
Brown-out reset and POR guarantee correct power-up sequencing in emergency stop systems.
HVAC Zone Controller
Extended temperature range supports rooftop or attic installations.
- Q: What is the voltage range?
- A: 1.8V to 5.5V.
- Q: What is the clock speed?
- A: 20MHz.
- Q: How much Flash memory?
- A: 4KB Flash.
- Q: What is the RAM size?
- A: 512 bytes SRAM.
- Q: What temperature range?
- A: -40°C to 125°C.
- Q: What is the voltage range?
- A: 1.8V to 5.5V.
- Q: What is the clock speed?
- A: 20MHz.
- Q: How much Flash memory?
- A: 4KB Flash.
- Q: What is the RAM size?
- A: 512 bytes SRAM.
- Q: What temperature range?
- A: -40°C to 125°C.

ATTINY427-MFR.pdf