PIC16C781T-I/SO Microchip Technology, PIC16C781T-I/SO Datasheet - Page 177

• Manufacturer Part Number: PIC16C781T-I/SO
• Description: IC MCU CMOS 8BIT 1K 20MHZ 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C781T-I/SO

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: OTP
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x8b; D/A 1x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• For Use With: AC164028 - MODULE SKT PROMATEII 20SOIC/DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Other names: PIC16C781TI/SO

INDEX
A
ADC
ADC Acquisition Requirements........................................... 73
ADC Conversion Clock ....................................................... 72
ADC Minimum Charging Time ............................................ 73
ADC Operation During SLEEP ........................................... 75
Analog Signal Multiplexing Diagram ..................................... 7
Analog-to-digital Converter (ADC) Module ......................... 69
Analog-to-Digital Converter Module
Assembler
B
Banking, Data Memory ....................................................... 17
Block Diagrams
Boost LC Switching Power Supply.................................... 107
2001 Microchip Technology Inc.
Accuracy/Error ............................................................ 75
Connection Considerations......................................... 76
Conversion Time ......................................................... 75
Converter Characteristics ......................................... 164
Effects of a RESET ..................................................... 76
Faster Conversion - Lower Resolution Trade-off ........ 75
Flow Chart of ADC Operation ..................................... 77
References.................................................................. 76
Transfer Function ........................................................ 76
Control Registers ........................................................ 70
MPASM Assembler ................................................... 141
ADC Module................................................................ 69
Auto Calibration Module.............................................. 85
Comparator C1 Simplified........................................... 90
Comparator C2 Simplified........................................... 90
DAC Converter............................................................ 80
Low Voltage Detect ..................................................... 64
On-Chip Reset Circuit ............................................... 121
OPA Module................................................................ 83
PIC16C781 ................................................................... 5
PIC16C782 ................................................................... 6
PSMC Module in Dual Alternating Output
PWM Mode ............................................................... 100
PSMC Module in Single Output PSM Mode ............. 102
PSMC Module in Single Output PWM Mode .............. 99
RA0/AN0/OPA+ Pin .................................................... 27
RA1/AN1/OPA- Pin ..................................................... 28
RA2/AN2/VREF2 Pin .................................................. 29
RA3/AN3/VREF1 Pin .................................................. 30
RA4/T0CKI Pin............................................................ 31
RA5/MCLR/VPP.......................................................... 32
RA6/OSC2/CLKOUT/T1CKI Pin ................................. 33
RA7/OSC1/CLKIN Pin ................................................ 34
RB0/INT/AN4/VR Pin .................................................. 37
RB1/AN5/VDAC Pin.................................................... 38
RB2/AN6 Pin............................................................... 39
RB3/AN7/OPA Pin ...................................................... 40
RB4 Pin....................................................................... 41
RB5 Pin....................................................................... 42
RB6/C1/PSMC1A Pin ................................................. 43
RB7/C2/PSMC1B/T1G Pin ......................................... 44
RC Oscillator Mode................................................... 120
Timer0 ......................................................................... 51
Timer0/WDT Prescaler................................................ 53
TIMER1....................................................................... 58
Watchdog Timer (WDT) ............................................ 130
Preliminary
BOR
BOR. See Brown-out Reset
Brown-out Reset (BOR).................................... 117, 125, 126
Buck Configuration LC Power Supply............................... 112
Buck LC Switching Power Supply..................................... 110
C
C1 Input to PSMC w/DAC as Reference ............................ 95
C2 Configuration Program .................................................. 95
CALCON Register .............................................................. 84
Calculating the Minimum Required
Acquisition Time ................................................................. 73
Clock Noise......................................................................... 76
Code Examples
Code Protection ................................................................ 117
Comparator C1 Control Register ........................................ 89
Comparator C2 Configuration With Output
Synchronized to T1CKI....................................................... 95
Comparator C2 Control Registers ...................................... 92
Comparator C2 Synchronized to T1CKI ............................. 95
Comparator Configuration .................................................. 95
Comparator Module ............................................................ 89
Configuration as OPAMP or Comparator ........................... 86
Configuration Bits ............................................................. 117
Configuration of Comparator C1 with DAC......................... 96
Configuring the ADC Module .............................................. 72
Configuring the Reference Voltages................................... 72
Control Register CM2CON0 ............................................... 92
Control Register T1CON..................................................... 56
D
DAC Configuration.............................................................. 81
DAC Module
Data Memory
Data Memory Organization................................................. 11
DC Characteristics
Development Support ....................................................... 141
Device Overview................................................................... 5
Digital-to-Analog Converter (DAC) Module......................... 79
Direct Addressing ............................................................... 24
DC Characteristics.................................................... 164
Doing an ADC Conversion ......................................... 74
Associated Registers.................................................. 98
Control Registers........................................................ 89
Effects of a RESET..................................................... 98
Output State Versus Input Conditions......................... 89
Accuracy/Error............................................................ 81
Associated Registers/Bits ........................................... 81
DAC Transfer Function ............................................... 81
Differential Non-Linearity Error ................................... 81
Effects of a RESET..................................................... 81
Gain Error ................................................................... 81
Integral Non-Linearity Error ........................................ 81
Monotonicity ............................................................... 81
Offset Error ................................................................. 81
Bank Select (RP Bits) ................................................. 17
Register File Map ....................................................... 12
Control Registers........................................................ 79
PIC16C781/782, PIC16LC781/782
(Industrial)......................................................... 149
PIC16C781/782
DS41171A-page 175