Model:ATMEGA4HVD-4MX BRAND:Microchip description:IC MCU 8BIT 4KB FLASH 18MLF pack:tray SERIES:AVR? ATmega status:Discontinued Core processor:AVR Core specifications:8-bit Speed:4MHz Peripherals:POR,WDT I/O number:5 Program storage capacity:4KB(2K x 16) Program memory type:Flash memory EEPROM capacity:256 x 8 RAM size:512 x 8 Voltage - powered by:2V ~ 2.4V Data converter:A/D 1x10b Oscillator type:bosom Operating temperature:-20°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:18-WFDFN Exposed pad(交错引) Supplier device packaging:18-MLF(3.5x6.5)