GENERAL DESCRIPTION The PIC16C63A/65B/73B/74B devices are low cost, high performance, CMOS, fully-static, 8-bit micro controllers in the PIC16CXX mid-range family. All PICmicro® microcontrollers employ an advanced RISC architecture. The PIC16CXX microcontroller 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 register set gives some of the architectural innovations used to achieve a very high performance. PIC16CXX Microcontroller Core Features: • High performance RISC CPU • Only 35 single word instructions to learn • All single cycle instructions except for program branches which are two cycle • Operating speed: DC - 20 MHz clock input DC - 200 ns instruction cycle • 4 K x 14 words of Program Memory, 192 x 8 bytes of Data Memory (RAM) • Interrupt capability • Eight-level deep hardware stack • Direct, indirect and relative addressing modes • Power-on Reset (POR) • Power-up Timer (PWRT) and Oscillator Start-up Timer (OST) • Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation • Programmable code protection • Power-saving SLEEP mode • Selectable oscillator options • Low power, high speed CMOS EPROM technology • Wide operating voltage range: 2.5V to 5.5V • High Sink/Source Current 25/25 mA • Commercial, Industrial and Automotive temperature ranges • Low power consumption: \- < 5 mA @ 5V, 4 MHz \- 23 µA typical @ 3V, 32 kHz \- < 1.2 µA typical standby current