PIC16F688T-I/ST View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC16F688T-I/ST

14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

Microchip Technology 

INDEX

A

A/D

Specifications.................................................... 160, 161

Absolute Maximum Ratings .............................................. 143

AC Characteristics

Industrial and Extended ............................................ 153

Load Conditions ........................................................ 152

ADC .................................................................................... 65

Acquisition Requirements ........................................... 73

Associated registers.................................................... 75

Block Diagram............................................................. 65

Calculating Acquisition Time....................................... 73

Channel Selection....................................................... 66

Configuration............................................................... 66

Configuring Interrupt ................................................... 69

Conversion Clock........................................................ 66

Conversion Procedure ................................................ 69

Internal Sampling Switch (RSS) Impedance................ 73

Interrupts..................................................................... 68

Operation .................................................................... 69

Operation During Sleep .............................................. 69

Port Configuration ....................................................... 66

Reference Voltage (VREF)........................................... 66

Result Formatting........................................................ 68

Source Impedance...................................................... 73

Starting an A/D Conversion ........................................ 68

ADCON0 Register............................................................... 71

ADCON1 Register............................................................... 71

ADRESH Register (ADFM = 0) ........................................... 72

ADRESH Register (ADFM = 1) ........................................... 72

ADRESL Register (ADFM = 0)............................................ 72

ADRESL Register (ADFM = 1)............................................ 72

Analog Front-end (AFE)

Power-On Reset ....................................................... 113

Analog Input Connection Considerations............................ 55

Analog-to-Digital Converter. See ADC

ANSEL Register .................................................................. 34

Assembler

MPASM Assembler................................................... 140

B

BAUDCTL Register ............................................................. 94

Block Diagrams

ADC ............................................................................ 65

ADC Transfer Function ............................................... 74

Analog Input Model ............................................... 55, 74

Clock Source............................................................... 21

Comparator 1 .............................................................. 54

Comparator 2 .............................................................. 54

Comparator Modes ..................................................... 57

Crystal Operation ........................................................ 24

EUSART Receive ....................................................... 84

EUSART Transmit ...................................................... 83

External RC Mode....................................................... 25

Fail-Safe Clock Monitor (FSCM) ................................. 31

In-Circuit Serial Programming Connections.............. 127

Interrupt Logic ........................................................... 120

MCLR Circuit............................................................. 113

On-Chip Reset Circuit ............................................... 112

PIC16F688.................................................................... 5

RA1 Pins ..................................................................... 38

RA2 Pin....................................................................... 38

RA3 Pin....................................................................... 39

RA4 Pin....................................................................... 39

© 2007 Microchip Technology Inc.

PIC16F688

RA5 Pin ...................................................................... 40

RC0 and RC1 Pins ..................................................... 43

RC2 and RC3 Pins ..................................................... 43

RC4 Pin ...................................................................... 44

RC5 Pin ...................................................................... 44

Resonator Operation .................................................. 24

Timer1 ........................................................................ 48

TMR0/WDT Prescaler ................................................ 45

Watchdog Timer (WDT)............................................ 123

Break Character (12-bit) Transmit and Receive ............... 101

Brown-out Reset (BOR).................................................... 114

Associated ................................................................ 115

Specifications ........................................................... 157

Timing and Characteristics ....................................... 156

C

C Compilers

MPLAB C18.............................................................. 140

MPLAB C30.............................................................. 140

Clock Accuracy with Asynchronous Operation ................... 92

Clock Sources

External Modes........................................................... 23

EC ...................................................................... 23

HS ...................................................................... 24

LP ....................................................................... 24

OST .................................................................... 23

RC ...................................................................... 25

XT ....................................................................... 24

Internal Modes............................................................ 25

Frequency Selection........................................... 27

HFINTOSC ......................................................... 25

INTOSC .............................................................. 25

INTOSCIO .......................................................... 25

LFINTOSC.......................................................... 27

Clock Switching .................................................................. 29

CMCON0 Register.............................................................. 61

CMCON1 Register.............................................................. 62

Code Examples

A/D Conversion .......................................................... 70

Assigning Prescaler to Timer0.................................... 46

Assigning Prescaler to WDT....................................... 46

Indirect Addressing..................................................... 20

Initializing PORTA ...................................................... 33

Initializing PORTC ...................................................... 42

Saving Status and W Registers in RAM ................... 122

Ultra Low-Power Wake-up Initialization...................... 36

Code Protection ................................................................ 126

Comparator......................................................................... 53

C2OUT as T1 Gate..................................................... 62

Configurations ............................................................ 56

Interrupts .................................................................... 59

Operation.............................................................. 53, 58

Operation During Sleep .............................................. 60

Response Time .......................................................... 59

Synchronizing COUT w/Timer1 .................................. 62

Comparator Module

Associated registers ................................................... 64

Comparator Voltage Reference (CVREF)

Response Time .......................................................... 59

Comparator Voltage Reference (CVREF)............................ 63

Effects of a Reset ....................................................... 60

Specifications ........................................................... 159

Comparators

C2OUT as T1 Gate..................................................... 49

DS41203D-page 193

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