PIC16C554A-04 Datasheet - Microchip Technology

GENERAL DESCRIPTION
The PIC16C55X are 18 and 20-Pin EPROM-based members of the versatile PIC16CXX family of low-cost, high-performance, CMOS, fully-static, 8-bit microcontrollers.
All PIC16/17 microcontrollers employ an advanced RISC architecture. The PIC16C55X have 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.

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 - 20 ns instruction cycle
• Interrupt capability
• 16-18 special function hardware registers
• 8-level deep hardware stack
• Direct, Indirect and Relative Addressing modes

Peripheral Features:
• 13-22 I/O pins with individual direction control
   - Pull-up resistors on PORTB
• 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
• Programmable code protection
• Power saving SLEEP mode
• Selectable oscillator options
• Serial in-circuit programming (via two pins)
• Four user programmable ID locations

CMOS Technology:
• Low power, high speed CMOS EPROM technology
• Fully static design
• Wide operating voltage range
   - 2.5V to 5.5V
• Commercial, Industrial and Extended temperature
   range
• Low power consumption
   - < 2.0 mA @ 5.0V, 4.0 MHz
   - 15 µA typical 3.0V, 32 kHz
   - < 1.0 µA typical standby current @ 3.0V