PIC16F636-I Datasheet, PDF (231/234 Pages) Microchip Technology – 8/14-Pin, Flash-Based 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC12F635/PIC16F636/639
Internal Oscillator Block
INTOSC
Specifications............................................ 180, 181
Internet Address................................................................ 223
Interrupts ........................................................................... 139
Associated Registers ................................................ 141
Comparator ................................................................. 77
Context Saving.......................................................... 142
Data EEPROM Memory Write .................................... 92
Interrupt-on-Change.................................................... 50
PORTA Interrupt-on-change ..................................... 140
RA2/INT .................................................................... 139
Timer0....................................................................... 140
TMR1 .......................................................................... 67
INTOSC Specifications ............................................. 180, 181
IOCA Register ..................................................................... 50
K
KEELOQ ............................................................................... 95
L
Load Conditions ................................................................ 178
M
MCLR ................................................................................ 132
Internal ...................................................................... 132
Memory Organization.......................................................... 17
Data ............................................................................ 17
Data EEPROM Memory.............................................. 91
Program ...................................................................... 17
Microchip Internet Web Site .............................................. 223
MPLAB ASM30 Assembler, Linker, Librarian ................... 160
MPLAB ICD 2 In-Circuit Debugger ................................... 161
MPLAB ICE 2000 High-Performance Universal
In-Circuit Emulator .................................................... 161
MPLAB Integrated Development Environment Software .. 159
MPLAB PM3 Device Programmer .................................... 161
MPLAB REAL ICE In-Circuit Emulator System................. 161
MPLINK Object Linker/MPLIB Object Librarian ................ 160
O
OPCODE Field Descriptions ............................................. 149
OPTION Register ................................................................ 27
OPTION_REG Register ...................................................... 63
OSCCON Register .............................................................. 36
Oscillator
Associated registers.............................................. 46, 69
Oscillator Module ................................................................ 35
EC ............................................................................... 35
HFINTOSC.................................................................. 35
HS ............................................................................... 35
INTOSC ...................................................................... 35
INTOSCIO................................................................... 35
LFINTOSC .................................................................. 35
LP................................................................................ 35
RC............................................................................... 35
RCIO ........................................................................... 35
XT ............................................................................... 35
Oscillator Parameters ....................................................... 180
Oscillator Specifications .................................................... 179
Oscillator Start-up Timer (OST)
Specifications............................................................ 183
Oscillator Switching
Fail-Safe Clock Monitor............................................... 45
Two-Speed Clock Start-up.......................................... 43
OSCTUNE Register ............................................................ 40
P
Packaging ......................................................................... 211
Details....................................................................... 213
Marking..................................................................... 211
PCL and PCLATH............................................................... 32
Stack........................................................................... 32
PCON Register ................................................................... 31
PICSTART Plus Development Programmer..................... 162
PIE1 Register ..................................................................... 29
Pin Diagrams ............................................................ 3, 4, 5, 6
Pinout Descriptions
PIC12F635 ................................................................. 12
PIC16F636 ................................................................. 13
PIC16F639 ................................................................. 14
PIR1 Register ..................................................................... 30
PLVD
Associated Registers.................................................. 89
PORTA ............................................................................... 47
Additional Pin Functions ............................................. 47
Interrupt-on-Change ........................................... 50
Ultra Low-Power Wake-up............................ 47, 51
Weak Pull-down.................................................. 47
Weak Pull-up ...................................................... 47
Associated Registers.................................................. 56
Pin Descriptions and Diagrams .................................. 52
RA0/C1IN+/ICSPDAT/ULPWU Pin............................. 52
RA1/C1IN-/Vref/ICSPCLK Pin .................................... 53
RA2/T0CKI/INT/C1OUT Pin ....................................... 53
RA3/MCLR/VPP PIN .................................................... 54
RA4/T1G/OSC2/CLKOUT Pin .................................... 55
RA5/T1CKI/OSC1/CLKIN Pin..................................... 55
Specifications ........................................................... 181
PORTA Register ................................................................. 48
PORTC ............................................................................... 57
Associated Registers.................................................. 59
RC0/C2IN+ Pin ........................................................... 58
RC2 Pin ...................................................................... 58
RC3 Pin ...................................................................... 58
RC4/C2OUT Pin ......................................................... 59
RC5 Pin ...................................................................... 58
Specifications ........................................................... 181
PORTC Register................................................................. 57
Power Control (PCON) Register....................................... 135
Power-Down Mode (Sleep)............................................... 145
Power-on Reset ................................................................ 132
Power-up Timer (PWRT) .................................................. 132
Specifications ........................................................... 183
Precision Internal Oscillator Parameters .......................... 181
Prescaler
Shared WDT/Timer0................................................... 62
Switching Prescaler Assignment ................................ 62
Product Identification ........................................................ 231
Program Memory ................................................................ 17
Program Memory Map and Stack
PIC12F635 ................................................................. 17
PIC16F636/639 .......................................................... 17
Programmable Low-Voltage Detect (PLVD) Module .......... 87
Programming, Device Instructions.................................... 149
R
Reader Response............................................................. 224
Read-Modify-Write Operations ......................................... 149
Registers
Analog Front-End (AFE)
AFE STATUS Register 7 .................................. 127
© 2007 Microchip Technology Inc.
DS41232D-page 229