Microchip Technology ATMEGA644-20AU
MPNATMEGA644-20AU
End of Life
IC MCU 8BIT 64KB FLASH 44TQFP
$46.89876Price · pay online now
$46.90 / ea
2 in stock — maximum per order · 3–4 days lead time
Packaging44-TQFP
RoHSROHS3 Compliant
SeriesAVR® ATmega
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Series | AVR® ATmega |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2.7V ~ 5.5V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 20MHz |
| Package | Tray |
| RAM size | 4K x 8 |
| Core size | 8-Bit |
| EEPROM size | 2K x 8 |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I2C, SPI, UART/USART |
| Number of i (O) | 32 |
| Core processor | AVR |
| Case | 44-TQFP |
| Data converters | A/D 8x10b |
| Program memory size | 64KB (32K x 16) |