5Pcs C8051F340-GQR Full Speed USB Flash MCU Family TQFP-48Packing List 5 Pcs Core Processor 8051 Core Size 8 Bit Speed 48MHz Connectivity EBI EMI, SMBus (2 Wire I2C), SPI, UART USART, USB Peripherals Brown out Detect Reset, POR, PWM, Temp Sensor, WDT Number of I O 40 Program Memory Size 64KB (64K x 8) Program Memory Type FLASH EEPROM Size RAM Size 4. 25K x 8 Voltage Supply (Vcc Vdd) 2. 7V ~ 3. 6V Data Converters A D 20x10b Oscillator Type Internal Operating Temperature 40C ~ 85C (TA) Mounting Type Surface