PIC16F72
Data Sheet
28-Pin, 8-Bit CMOS FLASH
Microcontoller with A/D Converter
©
2007 Microchip Technology Inc.
DS39597C
Note the following details of the code protection feature on Microchip devices:
•
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the
intended manner and under normal conditions.
There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is engaged in theft of intellectual property.
Microchip is willing to work with the customer who is concerned about the integrity of their code.
Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not
mean that we are guaranteeing the product as “unbreakable.”
•
•
•
Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
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Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K
EE
L
OQ
, microID, MPLAB, PIC, PICmicro, PICSTART,
PRO MATE, PowerSmart, rfPIC and SmartShunt are
registered trademarks of Microchip Technology Incorporated
in the U.S.A. and other countries.
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SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, ECAN,
ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, Linear Active
Thermistor, Mindi, MiWi, MPASM, MPLIB, MPLINK, PICkit,
PICDEM, PICDEM.net, PICLAB, PICtail, PowerCal,
PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB,
rfPICDEM, Select Mode, Smart Serial, SmartTel, Total
Endurance, UNI/O, WiperLock and ZENA are trademarks of
Microchip Technology Incorporated in the U.S.A. and other
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SQTP is a service mark of Microchip Technology Incorporated
in the U.S.A.
All other trademarks mentioned herein are property of their
respective companies.
© 2007, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona, Gresham, Oregon and Mountain View, California. The
Company’s quality system processes and procedures are for its PIC
®
MCUs and dsPIC DSCs, K
EE
L
OQ
®
code hopping devices, Serial
EEPROMs, microperipherals, nonvolatile memory and analog
products. In addition, Microchip’s quality system for the design and
manufacture of development systems is ISO 9001:2000 certified.
DS39597C-page ii
©
2007 Microchip Technology Inc.
PIC16F72
28-Pin, 8-Bit CMOS FLASH MCU with A/D Converter
Device Included:
• PIC16F72
Pin Diagrams
PDIP, SOIC, SSOP
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
REF
RA4/T0CKI
RA5/AN4/SS
V
SS
OSC1/CLKI
OSC2/CLKO
RC0/T1OSO/T1CKI
RC1/T1OSI
RC2/CCP1
RC3/SCK/SCL
•1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RB7/PGD
RB6/PGC
RB5
RB4
RB3
RB2
RB1
RB0/INT
V
DD
V
SS
RC7
RC6
RC5/SDO
RC4/SDI/SDA
High Performance RISC CPU:
• Only 35 single word instructions to learn
• All single cycle instructions except for program
branches, which are two-cycle
• Operating speed: DC - 20 MHz clock input
DC - 200 ns instruction cycle
• 2K x 14 words of Program Memory,
128 x 8 bytes of Data Memory (RAM)
• Pinout compatible to PIC16C72/72A and
PIC16F872
• Interrupt capability
• Eight-level deep hardware stack
• Direct, Indirect and Relative Addressing modes
PIC16F72
Peripheral Features:
• High Sink/Source Current: 25 mA
• Timer0: 8-bit timer/counter with 8-bit prescaler
• Timer1: 16-bit timer/counter with prescaler,
can be incremented during SLEEP via external
crystal/clock
• Timer2: 8-bit timer/counter with 8-bit period
register, prescaler and postscaler
• Capture, Compare, PWM (CCP) module
- Capture is 16-bit, max. resolution is 12.5 ns
- Compare is 16-bit, max. resolution is 200 ns
- PWM max. resolution is 10-bit
• 8-bit, 5-channel analog-to-digital converter
• Synchronous Serial Port (SSP) with
SPI™ (Master/Slave) and I
2
C™ (Slave)
• Brown-out detection circuitry for
Brown-out Reset (BOR)
RA2/AN2
RA3/AN3/V
REF
RA4/T0CKI
RA5/AN4/SS
V
SS
OSC1/CLKI
OSC2/CLKO
1
2
3
4
5
6
7
28 27 26 25 24 23 22
21
20
19
18
PIC16F72
17
16
15
8 9 10 11 12 13 14
RA1/AN1
RA0/AN0
MCLR/V
PP
RB7/PGD
RB6/PGC
RB5
RB4
QFN
RB3
RB2
RB1
RB0/INT
V
DD
V
SS
RC7
Special Microcontroller Features:
• 1,000 erase/write cycle FLASH program memory
typical
• Power-on Reset (POR), Power-up Timer (PWRT)
and Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip
RC oscillator for reliable operation
• Programmable code protection
• Power saving SLEEP mode
• Selectable oscillator options
• In-Circuit Serial Programming™ (ICSP™) via 2 pins
• Processor read access to program memory
CMOS Technology:
•
•
•
•
•
Low power, high speed CMOS FLASH technology
Fully static design
Wide operating voltage range: 2.0V to 5.5V
Industrial temperature range
Low power consumption:
- < 0.6 mA typical @ 3V, 4 MHz
- 20
μA
typical @ 3V, 32 kHz
- < 1
μA
typical standby current
©
2007 Microchip Technology Inc.
RC0/T1OSO/T1CKI
RC1/T1OSI
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6
DS39597C-page 1
PIC16F72
Key Reference Manual Features
Operating Frequency
RESETS and (Delays)
FLASH Program Memory - (14-bit words, 1000 E/W cycles)
Data Memory - RAM (8-bit bytes)
Interrupts
I/O Ports
Timers
Capture/Compare/PWM Modules
Serial Communications
8-bit A/D Converter
Instruction Set (No. of Instructions)
PIC16F72
DC - 20 MHz
POR, BOR, (PWRT, OST)
2K
128
8
PORTA, PORTB, PORTC
Timer0, Timer1, Timer2
1
SSP
5 channels
35
DS39597C-page 2
©
2007 Microchip Technology Inc.
PIC16F72
Table of Contents
1.0 Device Overview .......................................................................................................................................................................... 5
2.0 Memory Organization ................................................................................................................................................................... 7
3.0 I/O Ports ..................................................................................................................................................................................... 21
4.0 Reading Program Memory ......................................................................................................................................................... 27
5.0 Timer0 Module ........................................................................................................................................................................... 29
6.0 Timer1 Module ........................................................................................................................................................................... 31
7.0 Timer2 Module ........................................................................................................................................................................... 35
8.0 Capture/Compare/PWM (CCP) Module ..................................................................................................................................... 37
9.0 Synchronous Serial Port (SSP) Module ..................................................................................................................................... 43
10.0 Analog-to-Digital Converter (A/D) Module.................................................................................................................................. 53
11.0 Special Features of the CPU...................................................................................................................................................... 59
12.0 Instruction Set Summary ............................................................................................................................................................ 73
13.0 Development Support................................................................................................................................................................. 81
14.0 Electrical Characteristics ............................................................................................................................................................ 87
15.0 DC and AC Characteristics Graphs and Tables....................................................................................................................... 107
16.0 Package Marking Information................................................................................................................................................... 117
Appendix A: Revision History ........................................................................................................................................................ 123
Appendix B: Conversion Considerations........................................................................................................................................ 123
Index .................................................................................................................................................................................................. 125
On-Line Support................................................................................................................................................................................. 131
Reader Response .............................................................................................................................................................................. 132
Product Identification System ............................................................................................................................................................ 133
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©
2007 Microchip Technology Inc.
DS39597C-page 3
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