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

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