PIC17C44-08SLASHP datasheet(233/240 Pages) MICROCHIP

233 / 240 page

DS30412C-page 233

PIC17C4X

Figure 19-2:

External Clock Timing............................... 184

Figure 19-3:

CLKOUT and I/O Timing........................... 185

Figure 19-4:

Reset, Watchdog Timer,

Oscillator Start-Up Timer, and

Power-Up Timer Timing............................ 186

Figure 19-5:

Timer0 Clock Timings ............................... 187

Figure 19-6:

Timer1, Timer2, and Timer3 Clock

Timings ..................................................... 187

Figure 19-7:

Capture Timings ....................................... 188

Figure 19-8:

PWM Timings ........................................... 188

Figure 19-9:

USART Module: Synchronous

Transmission (Master/Slave) Timing ........ 189

Figure 19-10: USART Module: Synchronous

Receive (Master/Slave) Timing................. 189

Figure 19-11: Memory Interface Write Timing

(Not Supported in PIC17LC4X Devices)... 190

Figure 19-12: Memory Interface Read Timing

(Not Supported in PIC17LC4X Devices)... 191

Figure 20-1:

Typical RC Oscillator Frequency vs.

Temperature ............................................. 193

Figure 20-2:

Typical RC Oscillator Frequency

vs. VDD...................................................... 194

Figure 20-3:

Typical RC Oscillator Frequency

vs. VDD...................................................... 194

Figure 20-4:

Typical RC Oscillator Frequency

vs. VDD...................................................... 195

Figure 20-5:

Transconductance (gm) of LF Oscillator

vs. VDD...................................................... 196

Figure 20-6:

Transconductance (gm) of XT Oscillator

vs. VDD...................................................... 196

Figure 20-7:

Typical IDD vs. Frequency (External

Clock 25

°C)............................................... 197

Figure 20-8:

Maximum IDD vs. Frequency (External

Clock 125

°C to -40°C) .............................. 197

Figure 20-9:

Typical IPD vs. VDD Watchdog

Disabled 25

°C........................................... 198

Figure 20-10: Maximum IPD vs. VDD Watchdog

Disabled.................................................... 198

Figure 20-11: Typical IPD vs. VDD Watchdog

Enabled 25

°C............................................ 199

Figure 20-12: Maximum IPD vs. VDD Watchdog

Enabled..................................................... 199

Figure 20-13: WDT Timer Time-Out Period vs. VDD....... 200

Figure 20-14: IOH vs. VOH, VDD = 3V .............................. 200

Figure 20-15: IOH vs. VOH, VDD = 5V .............................. 201

Figure 20-16: IOL vs. VOL, VDD = 3V ............................... 201

Figure 20-17: IOL vs. VOL, VDD = 5V ............................... 202

Figure 20-18: VTH (Input Threshold Voltage) of

I/O Pins (TTL) VS. VDD.............................. 202

Figure 20-19: VTH, VIL of I/O Pins (Schmitt Trigger)

. VDD ..................................................... 203

Figure 20-20: VTH (Input Threshold Voltage) of OSC1

Input (In XT and LF Modes) vs. VDD........ 203

LIST OF TABLES

Table 1-1:

PIC17CXX Family of Devices ....................... 6

Table 3-1:

Pinout Descriptions..................................... 12

Table 4-1:

Time-Out in Various Situations ................... 16

Table 4-2:

STATUS Bits and Their Significance .......... 16

Table 4-3:

Reset Condition for the Program Counter

and the CPUSTA Register.......................... 16

Table 4-4:

Initialization Conditions For Special

Function Registers...................................... 19

Table 5-1:

Interrupt Vectors/Priorities .......................... 25

Table 6-1:

Mode Memory Access ................................ 30

Table 6-2:

EPROM Memory Access Time

Ordering Suffix ............................................31

Table 6-3:

Special Function Registers..........................34

Table 7-1:

Interrupt - Table Write Interaction................45

Table 8-1:

Performance Comparison ...........................49

Table 9-1:

PORTA Functions .......................................54

Table 9-2:

Registers/Bits Associated with PORTA.......54

Table 9-3:

PORTB Functions .......................................57

Table 9-4:

Registers/Bits Associated with PORTB.......57

Table 9-5:

PORTC Functions .......................................59

Table 9-6:

Registers/Bits Associated with PORTC.......59

Table 9-7:

PORTD Functions .......................................61

Table 9-8:

Registers/Bits Associated with PORTD.......61

Table 9-9:

PORTE Functions .......................................63

Table 9-10:

Registers/Bits Associated with PORTE.......63

Table 11-1:

Registers/Bits Associated with Timer0 ........70

Table 12-1:

Turning On 16-bit Timer ..............................74

Table 12-2:

Summary of Timer1 and Timer2

Registers .....................................................74

Table 12-3:

PWM Frequency vs. Resolution at

25 MHz ........................................................76

Table 12-4:

Registers/Bits Associated with PWM ..........77

Table 12-5:

Registers Associated with Capture .............79

Table 12-6:

Summary of TMR1, TMR2, and TMR3

Registers .....................................................81

Table 13-1:

Baud Rate Formula .....................................86

Table 13-2:

Registers Associated with Baud Rate

Generator ....................................................86

Table 13-3:

Baud Rates for Synchronous Mode ............87

Table 13-4:

Baud Rates for Asynchronous Mode...........88

Table 13-5:

Registers Associated with Asynchronous

Transmission ...............................................90

Table 13-6:

Registers Associated with Asynchronous

Reception ....................................................92

Table 13-7:

Registers Associated with Synchronous

Master Transmission ...................................94

Table 13-8:

Registers Associated with Synchronous

Master Reception ........................................96

Table 13-9:

Registers Associated with Synchronous

Slave Transmission .....................................98

Table 13-10:

Registers Associated with Synchronous

Slave Reception ..........................................98

Table 14-1:

Configuration Locations.............................100

Table 14-2:

Capacitor Selection for Ceramic

Resonators ................................................101

Table 14-3:

Capacitor Selection for Crystal

OscillatoR ..................................................101

Table 14-4:

Registers/Bits Associated with the

Watchdog Timer ........................................104

Table 15-1:

Opcode Field Descriptions ........................107

Table 15-2:

PIC17CXX Instruction Set .........................110

Table 16-1:

development tools from microchip.............146

Table 17-1:

Cross Reference of Device Specs for

Oscillator Configurations and Frequencies

of Operation (Commercial Devices) ..........148

Table 17-2:

External Clock Timing Requirements ........155

Table 17-3:

CLKOUT and I/O Timing Requirements....156

Table 17-4:

Reset, Watchdog Timer,

Oscillator Start-Up Timer and

Power-Up Timer Requirements.................157

Table 17-5:

Timer0 Clock Requirements......................158

Table 17-6:

Timer1, Timer2, and Timer3 Clock

Requirements ............................................158

Table 17-7:

Capture Requirements ..............................159

Table 17-8:

PWM Requirements ..................................159

PIC17C44-08/P Datasheet(PDF) 233 Page - Microchip Technology

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