Model:ATTINY4313-MUR BRAND:Microchip description:IC MCU 8BIT 4KB FLASH 20QFN pack:tape(TR),Shear zone(CT),Digi-Reel? SERIES:AVR? ATtiny status:in stock Core processor:AVR Core specifications:8-bit Speed:20MHz Peripherals:Undervoltage detection/reset,POR,PWM,WDT I/O number:18 Program storage capacity:4KB(2K x 16) Program memory type:Flash memory EEPROM capacity:256 x 8 RAM size:256 x 8 Voltage - powered by:1.8V ~ 5.5V Data converter:- Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:20-WFQFN Exposed pad Supplier device packaging:20-QFN-EP(4x4)