Model:AT91M40400-33AC BRAND:Microchip description:IC MCU 16/32BIT ROMLESS 100TQFP pack:tray SERIES:AT91SAM status:Discontinued Core processor:ARM7? Core specifications:16/32-位 Speed:33MHz Peripherals:WDT I/O number:32 Program storage capacity:- Program memory type:ROMless EEPROM capacity:- RAM size:4K x 8 Voltage - powered by:2.7V ~ 3.6V Data converter:- Oscillator type:外部 Operating temperature:0°C ~ 70°C Type of installation:Surface mount type Encapsulation/Shell:100-TQFP Supplier device packaging:100-TQFP(14x14)