PIC16F684T-E Datasheet, PDF (183/192 Pages) Microchip Technology – 14-Pin, Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology

INDEX
A
A/D
Specifications.................................................... 147, 148
Absolute Maximum Ratings .............................................. 129
AC Characteristics
Industrial and Extended ............................................ 139
Load Conditions ........................................................ 138
ADC .................................................................................... 65
Acquisition Requirements ........................................... 72
Associated registers.................................................... 74
Block Diagram............................................................. 65
Calculating Acquisition Time....................................... 72
Channel Selection....................................................... 66
Configuration............................................................... 66
Configuring Interrupt ................................................... 68
Conversion Clock........................................................ 66
Conversion Procedure ................................................ 68
Internal Sampling Switch (RSS) Impedance................ 72
Interrupts..................................................................... 67
Operation .................................................................... 68
Operation During Sleep .............................................. 68
Port Configuration ....................................................... 66
Reference Voltage (VREF)........................................... 66
Result Formatting........................................................ 67
Source Impedance...................................................... 72
Special Event Trigger.................................................. 68
Starting an A/D Conversion ........................................ 67
ADCON0 Register............................................................... 70
ADCON1 Register............................................................... 70
ADRESH Register (ADFM = 0) ........................................... 71
ADRESH Register (ADFM = 1) ........................................... 71
ADRESL Register (ADFM = 0)............................................ 71
ADRESL Register (ADFM = 1)............................................ 71
Analog Input Connection Considerations............................ 57
Analog-to-Digital Converter. See ADC
ANSEL Register .................................................................. 32
Assembler
MPASM Assembler................................................... 126
B
Block Diagrams
(CCP) Capture Mode Operation ................................. 80
ADC ............................................................................ 65
ADC Transfer Function ............................................... 73
Analog Input Model ............................................... 57, 73
CCP PWM................................................................... 82
Clock Source............................................................... 19
Comparator 1 .............................................................. 56
Comparator 2 .............................................................. 56
Comparator Modes ..................................................... 58
Compare ..................................................................... 81
Crystal Operation ........................................................ 22
External RC Mode....................................................... 23
Fail-Safe Clock Monitor (FSCM) ................................. 29
In-Circuit Serial Programming Connections.............. 114
Interrupt Logic ........................................................... 107
MCLR Circuit............................................................. 100
On-Chip Reset Circuit ................................................. 99
PIC16F684.................................................................... 5
PWM (Enhanced)........................................................ 85
RA0 Pins ..................................................................... 35
RA1 Pins ..................................................................... 36
RA2 Pin....................................................................... 36
RA3 Pin....................................................................... 37
© 2007 Microchip Technology Inc.
PIC16F684
RA4 Pin ...................................................................... 37
RA5 Pin ...................................................................... 38
RC0 and RC1 Pins ..................................................... 41
RC2 and RC3 Pins ..................................................... 41
RC4 Pin ...................................................................... 42
RC5 Pin ...................................................................... 42
Resonator Operation .................................................. 22
Timer1 ........................................................................ 47
Timer2 ........................................................................ 53
TMR0/WDT Prescaler ................................................ 43
Watchdog Timer (WDT)............................................ 110
Brown-out Reset (BOR).................................................... 101
Associated ................................................................ 102
Calibration ................................................................ 101
Specifications ........................................................... 143
Timing and Characteristics ....................................... 142
C
C Compilers
MPLAB C18.............................................................. 126
MPLAB C30.............................................................. 126
Calibration Bits.................................................................... 99
Capture Module. See Enhanced Capture/
Compare/PWM (ECCP)
Capture/Compare/PWM (CCP)
Associated registers w/ Capture/Compare/PWM ....... 96
Capture Mode............................................................. 80
CCP1 Pin Configuration ............................................. 80
Compare Mode........................................................... 81
CCP1 Pin Configuration ..................................... 81
Software Interrupt Mode ............................... 80, 81
Special Event Trigger ......................................... 81
Timer1 Mode Selection................................. 80, 81
Prescaler .................................................................... 80
PWM Mode................................................................. 82
Duty Cycle .......................................................... 83
Effects of Reset .................................................. 84
Example PWM Frequencies and
Resolutions, 20 MHZ .................................. 83
Example PWM Frequencies and
Resolutions, 8 MHz .................................... 83
Operation in Sleep Mode.................................... 84
Setup for Operation ............................................ 84
System Clock Frequency Changes .................... 84
PWM Period ............................................................... 83
Setup for PWM Operation .......................................... 84
CCP1CON (Enhanced) Register ........................................ 79
Clock Sources
External Modes........................................................... 21
EC ...................................................................... 21
HS ...................................................................... 22
LP ....................................................................... 22
OST .................................................................... 21
RC ...................................................................... 23
XT ....................................................................... 22
Internal Modes............................................................ 23
Frequency Selection........................................... 25
HFINTOSC ......................................................... 23
HFINTOSC/LFINTOSC Switch Timing ............... 25
INTOSC .............................................................. 23
INTOSCIO .......................................................... 23
LFINTOSC.......................................................... 25
Clock Switching .................................................................. 27
CMCON0 Register.............................................................. 61
DS41202F-page 181