Microchip Technology ATTINY426-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.73 | $0.73 |
| 15+ | $0.71 | $10.65 |
| 25+ | $0.69 | $17.25 |
| 50+ | $0.65 | $32.50 |
| 100+ | $0.58 | $58.00 |
| N+ | $0.12 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | tinyAVR® 2 |
| Packaging | Tray | |
| 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 | 18 |
| 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 ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 20-VQFN (3x3) |
| Package / Case | 20-VFQFN Exposed Pad |
| ROHS |
The Microchip ATTINY426-MU is a high-performance 8-bit AVR microcontroller in a space-saving 20-VFQFN package. It features 4KB of flash memory and 512 bytes of SRAM, operating at up to 20MHz. With a supply range of 1.8V to 5.5V and integrated PWM, WDT, and brown-out detection, it is designed for demanding yet power-conscious embedded applications.
- Higher throughput: 20MHz clock enables faster response in real-time control loops.
- More memory headroom: 4KB flash and 512B RAM support more complex firmware than smaller ATtiny parts.
- Compact QFN package: 20-pin VFQFN with exposed pad improves thermal performance and saves board area.
- Wide voltage range: 1.8V-5.5V allows direct battery or regulated 3.3V/5V operation.
Smart Home Automation Controllers
The 20MHz speed and 4KB flash handle complex logic for lighting, thermostat, and security keypad interfaces.
Motor Control in Drones and Robotics
Multiple PWM channels and fast processing enable precise ESC (electronic speed controller) signals for small motors.
Industrial Sensor Hubs
With 512 bytes RAM and multiple I/O, it can aggregate data from temperature, pressure, and humidity sensors.
Portable Medical Devices
The 1.8V operation and small QFN package suit compact glucose meters and pulse oximeters.
Automotive Body Electronics
Its -40°C to 85°C range and robust reset features support window lift and mirror control modules.
LED Matrix Displays
The 20MHz clock allows for efficient multiplexing and PWM dimming in small LED panels.
- Q: What is the maximum clock speed of the ATTINY426-MU?
- A: It runs at up to 20MHz.
- Q: How much program memory is available?
- A: It has 4KB of flash memory (4K x 8).
- Q: What package does this MCU use?
- A: It is housed in a 20-pin VFQFN exposed pad package.
- Q: Does it support PWM output?
- A: Yes, it includes PWM channels along with WDT, POR, and brown-out detection.
- Q: What is the maximum clock speed of the ATTINY426-MU?
- A: It runs at up to 20MHz.
- Q: How much program memory is available?
- A: It has 4KB of flash memory (4K x 8).
- Q: What package does this MCU use?
- A: It is housed in a 20-pin VFQFN exposed pad package.
- Q: Does it support PWM output?
- A: Yes, it includes PWM channels along with WDT, POR, and brown-out detection.

ATTINY426-MU.pdf