NXP Semiconductors P89CV51RC2FBC,557 3rd Party Development Tools: PK51, CA51, A51, ULINK2 Connectivity: EBI/EMI, SPI, UART/USART Core: 80C51 Core Processor: 8051 Core Size: 8-Bit Data Bus Width: 8 bit Data Converters: - Data Ram Size: 1 KB Eeprom Size: - ID_COMPONENTS: 1956864 Interface Type: SPI/UART Lead Free Status / Rohs Status: Lead free / RoHS Compliant Maximum Clock Frequency: 40 MHz Maximum Operating Temperature: + 85 C Minimum Operating Temperature: - 40 C Mounting Style: SMD/SMT Number Of I /o: 32 Number Of Programmable I/os: 32 Number Of Timers: 3 Operating Supply Voltage: 4.5 V to 5.5 V Operating Temperature: -40?°C ~ 85?°C Oscillator Type: Internal Package / Case: 44-TQFP, 44-VQFP Peripherals: POR, PWM, WDT Processor Series: P89CV5x Program Memory Size: 32KB (32K x 8) Program Memory Type: FLASH Ram Size: 1K x 8 Series: 89C Speed: 40MHz Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V Other Names: 568-4255, 935284104557, P89CV51RC2FBC