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PIC12F635E/P Datasheet(PDF) 191 Page - Microchip Technology |
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PIC12F635E/P Datasheet(HTML) 191 Page - Microchip Technology |
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191 / 196 page  © 2005 Microchip Technology Inc. Preliminary DS41232B-page 189 PIC12F635/PIC16F636/639 INDEX A Absolute Maximum Ratings .............................................. 147 AC Characteristics Analog Front-End (AFE) for PIC16F639 ................... 168 Industrial and Extended ............................................ 162 Load Conditions ........................................................ 161 AGC Settling ....................................................................... 81 Analog Front-End Configuration Registers Summary Table ................................................ 105 Analog Front-End (AFE) ..................................................... 79 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 Bidirectional PKE System Application Example...................................................... 84 Functional ........................................................... 82 LC Input Path ...................................................... 83 Output Enable Filter Timing ................................ 85 Output Enable Filter Timing (Detailed) ............... 86 Carrier Clock Detector ................................................ 80 Carrier Clock Output ................................................... 96 Examples ............................................................ 97 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 Examples ............................................................ 92 LFDATA Output Selection........................................... 93 Case I ................................................................. 94 Case II ................................................................ 94 Low Current Modes Operating ............................................................ 91 Sleep................................................................... 91 Standby............................................................... 91 Modulation Circuit ....................................................... 79 Modulation Depth........................................................ 89 Examples ............................................................ 90 Output Enable Filter .................................................... 80 Configurable Smart ............................................. 85 Output Enable Filter Timing (Table)............................ 87 Power-on Reset .......................................................... 93 RF Limiter ................................................................... 79 RSSI...................................................................... 80, 98 Output Path Diagram .......................................... 98 Power-up Sequence Diagram........................... 100 SPI Read Sequence Diagram........................... 102 SPI Write Sequence Diagram ........................... 101 RSSI Output Current vs. Input Signal Level Example .............................................................. 99 Sensitivity Control ....................................................... 79 Soft Reset ................................................................... 89 SPI Interface Timing Diagram................................... 104 Timers ................................................................... 80, 81 Alarm .................................................................. 81 Auto Channel Selection ...................................... 80 Inactivity ............................................................. 81 Period ................................................................. 81 Preamble Counters............................................. 81 Pulse Width ........................................................ 81 RC Oscillator ...................................................... 80 Tuning Capacitor ........................................................ 79 Variable Attenuator..................................................... 79 Analog Input Connection Considerations ........................... 62 Assembler MPASM Assembler .................................................. 141 B Block Diagrams 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 PIC16F636/639 .................................................. 64 Comparator Voltage Reference (CVREF).................... 68 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 Brown-out Detect (BOD)................................................... 115 Associated Registers................................................ 116 Specifications ........................................................... 165 C C Compilers MPLAB C17 .............................................................. 142 MPLAB C18 .............................................................. 142 MPLAB C30 .............................................................. 142 CLKOUT and I/O Timing Requirements ........................... 164 Clock Sources..................................................................... 29 Associated Registers.................................................. 38 External Clock Modes................................................. 30 Internal Clock Modes.................................................. 32 Modes......................................................................... 30 |
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