PIC16F721-E/ML Microchip Technology, PIC16F721-E/ML Datasheet - Page 235

• Manufacturer Part Number: PIC16F721-E/ML
• Description: 7 KB FLASH, 256 B SRAM, 18 I/O 20 QFN 4x4mm TUBE
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F721-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 7KB (4K x 14)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

INDEX
A
A/D
Absolute Maximum Ratings .............................................. 187
AC Characteristics
ADC .................................................................................... 77
ADCON0 Register......................................................... 17, 81
ADCON1 Register......................................................... 18, 82
Addressable Universal Synchronous Asynchronous
ADRES Register ................................................................. 82
ADRESH Register............................................................... 17
Analog-to-Digital Converter. See ADC
ANSELA Register ............................................................... 49
ANSELB Register ............................................................... 58
Assembler
AUSART ........................................................................... 119
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Specifications.................................................... 203, 204
Industrial and Extended ............................................ 196
Load Conditions ........................................................ 195
Acquisition Requirements ........................................... 83
Associated registers.................................................... 85
Block Diagram............................................................. 77
Calculating Acquisition Time....................................... 83
Channel Selection....................................................... 78
Configuration............................................................... 78
Configuring Interrupt ................................................... 80
Conversion Clock........................................................ 78
Conversion Procedure ................................................ 80
Internal Sampling Switch (R
Interrupts..................................................................... 79
Operation .................................................................... 79
Operation During Sleep .............................................. 80
Port Configuration ....................................................... 78
Source Impedance...................................................... 83
Special Event Trigger.................................................. 80
Receiver Transmitter (AUSART)............................... 119
MPASM Assembler................................................... 184
Associated Registers
Asynchronous Mode ................................................. 121
Baud Rate Generator (BRG)
Synchronous Master Mode ............................... 132, 136
Synchronous Slave Mode
Baud Rate Generator........................................ 129
Associated Registers
Baud Rate Generator (BRG) ............................ 129
Receiver............................................................ 123
Setting up 9-bit Mode with Address Detect....... 125
Transmitter........................................................ 121
Baud Rate Error, Calculating ............................ 129
Baud Rates, Asynchronous Modes .................. 130
Formulas ........................................................... 129
High Baud Rate Select (BRGH Bit) .................. 129
Associated Registers
Reception.......................................................... 134
Transmission .................................................... 132
Associated Registers
Reception.......................................................... 137
Transmission .................................................... 136
Receive..................................................... 126
Transmit.................................................... 123
Receive..................................................... 135
Transmit.................................................... 133
Receive..................................................... 137
Transmit.................................................... 136
SS
) Impedance................ 83
B
BF bit ........................................................................ 147, 159
Block Diagrams
Brown-out Reset (BOR)...................................................... 31
C
C Compilers
Capture Module. See Capture/Compare/PWM (CCP)
Capture/Compare/PWM (CCP) ........................................ 109
(CCP) Capture Mode Operation ............................... 110
ADC ............................................................................ 77
ADC Transfer Function............................................... 84
Analog Input Model..................................................... 84
AUSART Receive ..................................................... 120
AUSART Transmit .................................................... 119
CCP PWM ................................................................ 114
Clock Source .............................................................. 67
Compare................................................................... 112
Interrupt Logic............................................................. 37
MCLR Circuit .............................................................. 29
On-Chip Reset Circuit................................................. 27
RA0 Pins..................................................................... 51
RA1 Pins..................................................................... 52
RA2 Pin ...................................................................... 53
RA4 Pin ...................................................................... 54
RA5 Pin ................................................................ 54, 55
RB0 Pin ...................................................................... 59
RB3 Pin ...................................................................... 60
RC0 Pin ...................................................................... 64
RC5 Pin ...................................................................... 65
RC6 Pin ...................................................................... 65
RC7 Pin ...................................................................... 65
SPI Mode.................................................................. 140
SSP (I
Timer1 ................................................ 95, 101, 102, 103
Timer2 ...................................................................... 107
TMR0/WDT Prescaler ................................................ 91
Specifications ........................................................... 201
Timing and Characteristics ....................................... 200
MPLAB C18.............................................................. 184
Associated registers w/ Capture............................... 111
Associated registers w/ Compare............................. 113
Associated registers w/ PWM................................... 117
Capture Mode........................................................... 110
CCPx Pin Configuration............................................ 110
Compare Mode......................................................... 112
Prescaler .................................................................. 110
PWM Mode............................................................... 114
PWM Period ............................................................. 115
Setup for PWM Operation ........................................ 116
PIC16F/LF720/721
CCPx Pin Configuration.................................... 112
Software Interrupt Mode ........................... 110, 112
Special Event Trigger ....................................... 112
Timer1 Mode Selection............................. 110, 112
Duty Cycle ........................................................ 115
Effects of Reset ................................................ 116
Example PWM Frequencies and
Example PWM Frequencies and
Operation in Sleep Mode.................................. 116
Setup for Operation .......................................... 116
System Clock Frequency Changes .................. 116
2
C Mode)........................................................ 149
Resolutions, 20 MHZ ................................ 116
Resolutions, 8 MHz .................................. 116
DS41430A-page 235