PIC16C781中文資料微芯科技數(shù)據(jù)手冊(cè)PDF規(guī)格書

DEVICE OVERVIEW

This document contains device-specific information. Additional information may be found in the PIC Mid Range Reference Manual (DS33023), which may be obtained from your local Microchip Sales Representative or downloaded from the Microchip website. The Reference manual should be considered a complementary document to this data sheet. The Reference manual is highly recommended reading for a better understanding of the device architecture and operation of the peripheral modules.

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

? Direct, indirect and relative addressing modes

- Operating speed: DC - 20 MHz clock input

DC - 200 ns instruction cycle

? 8-level deep hardware stack

? Interrupt capability (up to 8 internal/external interrupt sources)

? 16 I/O pins:

- Individual direction control (13 pins)

- Input only (3 pins), low leakage (2 pins)

- Digital/Analog inputs (8 pins)

? Programmable PORTB interrupt-on-change (8 pins)

? Programmable PORTB weak pull-ups (8 pins)

? Power-on Reset (POR)

? Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)

? Watchdog Timer (WDT) with a software enabled option and its own on-chip RC oscillator for reliable operation

? Programmable Brown-out Reset (BOR)

? Programmable Low Voltage Detection (LVD)

? Internal/external MCLR

? Programmable code protection

? Power saving SLEEP mode

? Selectable oscillator options: HS, XT, LP, EC, RC, INTRC (4 MHz/37 kHz)

? In-Circuit Serial Programming? (ISCP?)

? Program Memory Read (PMR) capability

? Four user programmable ID locations

? Wide operating voltage range:

- 2.5V to 5.5V for commercial and industrial temperature ranges

- Extended temperature range available

Microcontroller Core Features (Continued):

? Low power, high speed CMOS EPROM technology

? Fully static design

? Low power consumption:

- < 2 mA @ 5V, 4 MHz

-

Peripheral Features:

? Timer0: 8-bit timer/counter with 8-bit prescaler

? Enhanced Timer1:

- 16-bit timer/counter with prescaler

- External Gate Input mode

- Option to use OSC1 and OSC2 in LP mode as Timer1 oscillator, if INTRC oscillator mode selected

? Analog-to-Digital Converter (ADC):

- 8-bit resolution

- Programmable 8-channel input

- Internal voltages available for self diagnostics

? Digital-to-Analog Converter (DAC):

- 8-bit resolution

- Reference from AVDD, VREF1, or VR module

- Output configurable to VDAC pin, Comparators, and ADC reference

? Operational Amplifier module (OPA):

- Firmware initiated input offset voltage Auto Calibration module

- Low leakage inputs

- Programmable Gain Bandwidth Product (GBWP)

? Dual Analog Comparator module with:

- Individual enable and interrupt bits

- Programmable speed and output polarity

- Fully configurable inputs and outputs

- Reference from DAC, or VREF1/VREF2

- Low input offset voltage.

? VR voltage reference module:

- 3.072V +/- 0.7 @25?C, AVDD = 5V

- Configurable output to ADC reference, DAC reference, and VR pin

- 5 mA sink/source

? Programmable Switch Mode Controller module:

- PWM and PSM modes

- Programmable switching frequency

- Configurable for either single or dual feedback inputs

- Configurable single or dual outputs

- Slope compensation output available in single output mode