OVERVIEW
This data sheet covers the PIC17C4X group of the PIC17CXX family of microcontrollers. The following devices are discussed in this data sheet:
    • PIC17C42
    • PIC17CR42
    • PIC17C42A
    • PIC17C43
    • PIC17CR43
    • PIC17C44
The PIC17CR42, PIC17C42A, PIC17C43, PIC17CR43, and PIC17C44 devices include architectural enhancements over the PIC17C42. These enhancements will be discussed throughout this data sheet.

Microcontroller Core Features:
• Only 58 single word instructions to learn
• All single cycle instructions (121 ns) except for program branches and table reads/writes which are two-cycle
• Operating speed:
    - DC - 33 MHz clock input
    - DC - 121 ns instruction cycle
• Hardware Multiplier (Not available on the PIC17C42)
• Interrupt capability
• 16 levels deep hardware stack
• Direct, indirect and relative addressing modes
• Internal/External program memory execution
• 64K x 16 addressable program memory space

Peripheral Features:
• 33 I/O pins with individual direction control
• High current sink/source for direct LED drive
    - RA2 and RA3 are open drain, high voltage (12V), high current (60 mA), I/O
• Two capture inputs and two PWM outputs
    - Captures are 16-bit, max resolution 160 ns
    - PWM resolution is 1- to 10-bit
• TMR0: 16-bit timer/counter with 8-bit programmable prescaler
• TMR1: 8-bit timer/counter
• TMR2: 8-bit timer/counter
• TMR3: 16-bit timer/counter
• Universal Synchronous Asynchronous Receiver Transmitter (USART/SCI)

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
• Code-protection
• Power saving SLEEP mode
• Selectable oscillator options

CMOS Technology:
• Low-power, high-speed CMOS EPROM/ROM technology
• Fully static design
• Wide operating voltage range (2.5V to 6.0V)
• Commercial and Industrial Temperature Range
• Low-power consumption
    - < 5 mA @ 5V, 4 MHz
    - 100 µA typical @ 4.5V, 32 kHz
    - < 1 µA typical standby current @ 5V