Model:AT91SAM9R64-CU-999 BRAND:Microchip description:IC MCU 16/32BIT 32KB ROM 144BGA pack:tape(TR),Shear zone(CT),Digi-Reel? SERIES:SAM9R status:in stock Core processor:ARM926EJ-S Core specifications:16/32-位 Speed:240MHz Peripherals:AC'97,POR,PWM,WDT I/O number:49 Program storage capacity:32KB(32K x 8) Program memory type:ROM EEPROM capacity:- RAM size:72K x 8 Voltage - powered by:1.65V ~ 3.6V Data converter:A/D 3x10b Oscillator type:bosom Operating temperature:-40°C ~ 85°C(TA) Type of installation:Surface mount type Encapsulation/Shell:144-LFBGA Supplier device packaging:144-BGA(13x13)