Model:AT91SAM7S32-AU-001 BRAND:Microchip description:IC MCU 16/32BIT 32KB FLSH 48LQFP pack:tray SERIES:SAM7S status:Discontinued Core processor:ARM7? Core specifications:16/32-位 Speed:55MHz Peripherals:Undervoltage detection/reset,POR,PWM,WDT I/O number:21 Program storage capacity:32KB(32K x 8) Program memory type:Flash memory EEPROM capacity:- RAM size:8K x 8 Voltage - powered by:1.65V ~ 1.95V Data converter:A/D 8x10b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:48-LQFP Supplier device packaging:48-LQFP(7x7)