PIC16F636-I/P Microchip Technology Inc., PIC16F636-I/P Datasheet - Page 191

• Manufacturer Part Number: PIC16F636-I/P
• Description: 14 PIN, 3.5 KB FLASH, 128 RAM, 12 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F636-I/P

• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 12
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 14-pin PDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

INDEX
A
Absolute Maximum Ratings .............................................. 147
AC Characteristics
AGC Settling ....................................................................... 81
Analog Front-End
Analog Front-End (AFE) ..................................................... 79
© 2005 Microchip Technology Inc.
Analog Front-End (AFE) for PIC16F639 ................... 168
Industrial and Extended ............................................ 162
Load Conditions ........................................................ 161
Configuration Registers
A/D Data Conversion of RSSI Signal........................ 100
AFE Status Register Bit Condition ............................ 110
AGC ................................................................ 80, 81, 88
AGC Preserve............................................................. 88
Battery Back-up and Batteryless Operation................ 92
Block Diagrams
Carrier Clock Detector ................................................ 80
Carrier Clock Output ................................................... 96
Command Decoder/Controller .................................. 103
Configuration Registers ............................................ 104
Data Slicer .................................................................. 80
Demodulator ......................................................... 80, 93
De-Q’ing of Antenna Circuit ........................................ 92
Error Detection............................................................ 91
Factory Calibration...................................................... 92
Fixed Gain Amplifiers.................................................. 80
Input Sensitivity Control .............................................. 87
LF Field Powering/Battery Back-up
LFDATA Output Selection........................................... 93
Low Current Modes
Modulation Circuit ....................................................... 79
Modulation Depth........................................................ 89
Output Enable Filter .................................................... 80
Output Enable Filter Timing (Table)............................ 87
Power-on Reset .......................................................... 93
RF Limiter ................................................................... 79
RSSI...................................................................... 80, 98
RSSI Output Current vs. Input Signal Level
Sensitivity Control ....................................................... 79
Soft Reset ................................................................... 89
SPI Interface Timing Diagram................................... 104
Timers ................................................................... 80, 81
Summary Table ................................................ 105
Bidirectional PKE System Application
Functional ........................................................... 82
LC Input Path ...................................................... 83
Output Enable Filter Timing ................................ 85
Output Enable Filter Timing (Detailed) ............... 86
Examples ............................................................ 97
Examples ............................................................ 92
Case I ................................................................. 94
Case II ................................................................ 94
Operating ............................................................ 91
Sleep................................................................... 91
Standby............................................................... 91
Examples ............................................................ 90
Configurable Smart ............................................. 85
Output Path Diagram .......................................... 98
Power-up Sequence Diagram........................... 100
SPI Read Sequence Diagram........................... 102
SPI Write Sequence Diagram ........................... 101
Example .............................................................. 99
Example...................................................... 84
PIC12F635/PIC16F636/639
Preliminary
Analog Input Connection Considerations ........................... 62
Assembler
B
Block Diagrams
Brown-out Detect (BOD)................................................... 115
C
C Compilers
CLKOUT and I/O Timing Requirements ........................... 164
Clock Sources..................................................................... 29
Tuning Capacitor ........................................................ 79
Variable Attenuator..................................................... 79
MPASM Assembler .................................................. 141
Analog Input Model..................................................... 62
Ceramic Resonator Operation.................................... 31
Clock Source .............................................................. 29
Comparator C1 Output ............................................... 65
Comparator C2 Output ............................................... 66
Comparator I/O Operating Modes for PIC12F635 ...... 63
Comparator I/O Operating Modes for
Comparator Voltage Reference (CV
External Clock Mode .................................................. 31
Fail-Safe Clock Monitor (FSCM)................................. 36
Functional (AFE)......................................................... 82
In-Circuit Serial Programming Connection ............... 129
Interrupt Logic........................................................... 122
On-Chip Reset Circuit............................................... 113
PIC12F635 Device ....................................................... 5
PIC16F636 Device ....................................................... 6
PIC16F639 Device ....................................................... 7
Quartz Crystal Operation............................................ 31
RA0 Pin ...................................................................... 44
RA1 Pin ...................................................................... 45
RA2 Pin ...................................................................... 45
RA3 Pin ...................................................................... 46
RA4 Pin ...................................................................... 47
RA5 Pin ...................................................................... 47
RC Mode .................................................................... 32
RC0 and RC1 Pins ..................................................... 49
RC2, RC3 and RC5 Pins ............................................ 49
RC4 Pin ...................................................................... 50
RCIO Mode................................................................. 32
Recommended MCLR Circuit................................... 114
Timer1 ........................................................................ 57
TMR0/WDT Prescaler ................................................ 53
Watchdog Timer (WDT)............................................ 125
Associated Registers................................................ 116
Specifications ........................................................... 165
MPLAB C17.............................................................. 142
MPLAB C18.............................................................. 142
MPLAB C30.............................................................. 142
Associated Registers.................................................. 38
External Clock Modes................................................. 30
Internal Clock Modes.................................................. 32
Modes......................................................................... 30
Alarm .................................................................. 81
Auto Channel Selection ...................................... 80
Inactivity ............................................................. 81
Period ................................................................. 81
Preamble Counters............................................. 81
Pulse Width ........................................................ 81
RC Oscillator ...................................................... 80
PIC16F636/639 .................................................. 64
DS41232B-page 189
REF
).................... 68