NXP Semiconductors P89LPC936FDH-T Data Bus Width: 8 Bit Device Core: 80C51 Family Name: 89LP Interface Type: I2C/SPI/UART Maximum Speed: 18 MHz Number Of Programmable I/os: 26 Number Of Timers: 2 On-chip Adc: 8-chx8-bit Operating Supply Voltage: 2.5|3.3 V Operating Temperature: -40 to 85 ?‚?°C Package: 28TSSOP Program Memory Size: 16 KB Program Memory Type: Flash Ram Size: 768 Byte