Model:AT91SAM7A2-AU BRAND:Microchip description:IC MCU 16/32BIT ROMLESS 176LQFP pack:tray SERIES:AT91SAM status:Discontinued Core processor:ARM7? Core specifications:16/32-位 Speed:30MHz Peripherals:POR,PWM,WDT I/O number:57 Program storage capacity:- Program memory type:ROMless EEPROM capacity:- RAM size:16K x 8 Voltage - powered by:3V ~ 3.6V Data converter:A/D 8x10b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:176-LQFP Supplier device packaging:176-LQFP(24x24)