EPROM-Based 8-Bit CMOS Microcontroller

Devices included in this data sheet:
Referred to collectively as PIC16C55X(A).
? PIC16C554 PIC16C554A
PIC16C556A
? PIC16C558 PIC16C558A
High Performance RISC CPU:
? Only 35 instructions to learn
? All single-cycle instructions (200 ns), except for
program branches which are two-cycle
? Operating speed:
- DC - 20 MHz clock input
- DC - 200 ns instruction cycle
? Interrupt capability
? 16 special function hardware registers
? 8-level deep hardware stack
? Direct, Indirect and Relative addressing modes
Peripheral Features:
? 13 I/O pins with individual direction control
? High current sink/source for direct LED drive
? Timer0: 8-bit timer/counter with 8-bit
programmable prescaler
Special Microcontroller Features:
? 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