A newer device is available. Please consider PIC18F6520. This powerful 8.25 MIPS (121 nanosecond instruction execution) yet easy-to-program (only 58 single word instructions) CMOS OTP-based 8-bit microcontroller packs Microchip's powerful PIC® architecture into an 64- or 68-pin package and is upwards compatible with the PIC16C5X, PIC12CXXX and PIC16CXX devices. PIC17C756A features additional timers, 4 capture functions, 3 PWM functions, External Memory Addressing, 12 channels of 10-bit Analog-to-Digital (A/D) converter, the synchronous serial port can be configured as either 3-wire Serial Peripheral Interface (SPI™) or the 2-wire Inter-Integrated Circuit (I2C™) bus and 2 Universal Asynchronous Receiver Transmitter (USART). All of these features make it ideal for demanding real-time embedded control applications from precise motor control and industrial control to automotive, instrumentation and telecom applications.