8-Bit CMOS Microcontrollers With USB

The PIC16C745 PIC16C765 devices are low cost, high-perfor- mance, CMOS, fully-static, 8-bit Microcontrollers in the PIC16CXX mid-range family. All PICmicro Microcontrollers employ an advanced RISC architecture. The PIC16C745 PIC16C765 microcontrol- ler family has enhanced core features, eight-level deep stack and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture allow a 14-bit wide instruction word with the separate 8-bit wide data. The two stage instruction pipeline allows all instructions to execute in a single cycle, except for program branches, which require two cycles. A total of 35 instructions (reduced instruction set) are available. Additionally, a large reg- ister set gives some of the architectural innovations used to achieve a very high performance. The PIC16C745 device has 22 I/O pins. The PIC16C765 device has 33 I/O pins. Each device has 256 bytes of RAM. In addition, several peripheral fea- tures are available including: three Timer Counters two Capture/Compare/PWM modules and two serial ports. The Universal Serial Bus (USB 1.1) low speed periph- eral provides bus Communications The Universal Synchronous Asynchronous Receiver Transmitter (USART) is also known as the Serial Communications Interface or SCI. Also, a 5-channel high-speed 8-bit A/D is provided on the PIC16C745 while the PIC16C765 offers 8 channels. The 8-bit resolution is ideally suited for applications requiring a low cost ana- log Interface (e.g., thermostat control, pressure sens- ing, etc.). By Microchip Technology Inc.