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PIC16F7X
Data Sheet
28/40-pin, 8-bit CMOS FLASH
Microcontrollers
2002 Microchip Technology Inc.
DS30325B

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Note the following details of the code protection feature on PICmicro® MCUs.
The PICmicro family meets the specifications contained in the Microchip Data Sheet.
Microchip believes that its family of PICmicro microcontrollers is one of the most secure products 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 knowl-
edge, require using the PICmicro microcontroller in a manner outside the operating specifications contained in the data sheet.
The person doing so may be 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 product.
If you have any further questions about this matter, please contact the local sales office nearest to you.
Information contained in this publication regarding device
applications and the like is intended through suggestion only
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
No representation or warranty is given and no liability is
assumed by Microchip Technology Incorporated with respect
to the accuracy or use of such information, or infringement of
patents or other intellectual property rights arising from such
use or otherwise. Use of Microchip’s products as critical com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, implicitly or otherwise, under any intellectual property
rights.
Trademarks
The Microchip name and logo, the Microchip logo, FilterLab,
KEELOQ, MPLAB, PIC, PICmicro, PICMASTER, PICSTART,
PRO MATE, SEEVAL and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology
Incorporated in the U.S.A. and other countries.
dsPIC, ECONOMONITOR, FanSense, FlexROM, fuzzyLAB,
In-Circuit Serial Programming, ICSP, ICEPIC, microID,
microPort, Migratable Memory, MPASM, MPLIB, MPLINK,
MPSIM, MXDEV, PICC, PICDEM, PICDEM.net, rfPIC, Select
Mode and Total Endurance are trademarks of Microchip
Technology Incorporated in the U.S.A.
Serialized Quick Term Programming (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.
© 2002, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
DS30325B - page ii
Microchip received QS-9000 quality system
certification for its worldwide headquarters,
design and wafer fabrication facilities in
Chandler and Tempe, Arizona in July 1999. The
Company’s quality system processes and
procedures are QS-9000 compliant for its
PICmicro® 8-bit MCUs, KEELOQ® code hopping
devices, Serial EEPROMs and microperipheral
products. In addition, Microchips quality
system for the design and manufacture of
development systems is ISO 9001 certified.
2002 Microchip Technology Inc.

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PIC16F7X
28/40-Pin 8-Bit CMOS FLASH Microcontrollers
Devices Included in this Data Sheet:
PIC16F73
PIC16F74
PIC16F76
PIC16F77
High Performance RISC CPU:
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
Up to 8K x 14 words of FLASH Program Memory,
Up to 368 x 8 bytes of Data Memory (RAM)
Pinout compatible to the PIC16C73B/74B/76/77
Pinout compatible to the PIC16F873/874/876/877
Interrupt capability (up to 12 sources)
Eight level deep hardware stack
Direct, Indirect and Relative Addressing modes
Processor read access to program memory
Special Microcontroller Features:
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 two
pins
Peripheral Features:
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
Two Capture, Compare, PWM modules
- 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, up to 8-channel Analog-to-Digital converter
Synchronous Serial Port (SSP) with SPI(Master
mode) and I2C(Slave)
Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI)
Parallel Slave Port (PSP), 8-bits wide with
external RD, WR and CS controls (40/44-pin only)
Brown-out detection circuitry for
Brown-out Reset (BOR)
CMOS Technology:
Low power, high speed CMOS FLASH technology
Fully static design
Wide operating voltage range: 2.0V to 5.5V
High Sink/Source Current: 25 mA
Industrial temperature range
Low power consumption:
- < 2 mA typical @ 5V, 4 MHz
- 20 µA typical @ 3V, 32 kHz
- < 1 µA typical standby current
Device
PIC16F73
PIC16F74
PIC16F76
PIC16F77
Program Memory Data
(# Single Word SRAM I/O
Instructions) (Bytes)
4096
4096
8192
8192
192 22
192 33
368 22
368 33
Interrupts
11
12
11
12
8-bit
A/D (ch)
5
8
5
8
CCP
(PWM)
SSP
SPI I2C
(Master) (Slave)
2 Yes Yes
2 Yes Yes
2 Yes Yes
2 Yes Yes
USART
Yes
Yes
Yes
Yes
Timers
8/16-bit
2/1
2/1
2/1
2/1
2002 Microchip Technology Inc.
DS30325B-page 1

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PIC16F7X
Pin Diagrams
www.DataSheet4U.com
DIP, SOIC, SSOP
MCLR/VPP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/VREF
RA4/T0CKI
RA5/AN4/SS
VSS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 RB7/PGD
27 RB6/PGC
26 RB5
25 RB4
24 RB3/PGM
23 RB2
22 RB1
21 RB0/INT
20 VDD
19 VSS
18 RC7/RX/DT
17 RC6/TX/CK
16 RC5/SDO
15 RC4/SDI/SDA
MLF
RA2/AN2
RA3/AN3/VREF
RA4/T0CKI
RA5/AN4/SS
VSS
OSC1/CLKI
OSC2/CLKO
28 27 26 25 24 23 22
1 21
2 20
3 PIC16F73 19
4 18
5 PIC16F76 17
6 16
7 15
8 9 10 11 12 13 14
RB3/PGM
RB2
RB1
RB0/INT
VDD
VSS
RC7/RX/DT
PDIP
MCLR/VPP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/VREF
RA4/T0CKI
RA5/AN4/SS
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
VDD
VSS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RD0/PSP0
RD1/PSP1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 RB7/PGD
39 RB6/PGC
38 RB5
37 RB4
36 RB3/PGM
35 RB2
34 RB1
33 RB0/INT
32 VDD
31 VSS
30 RD7/PSP7
29 RD6/PSP6
28 RD5/PSP5
27 RD4/PSP4
26 RC7/RX/DT
25 RC6/TX/CK
24 RC5/SDO
23 RC4/SDI/SDA
22 RD3/PSP3
21 RD2/PSP2
DS30325B-page 2
2002 Microchip Technology Inc.

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Pin Diagrams (Continued)
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PLCC
PIC16F7X
RA4/T0CKI
RA5/AN4/SS
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
VDD
VSS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CK1
NC
7 39
8 38
9 37
10
11
PIC16F77
36
35
12
13
PIC16F74
34
33
14 32
15 31
16 30
17 29
RB3/PGM
RB2
RB1
RB0/INT
VDD
VSS
RD7/PSP7
RD6/PSP6
RD5/PSP5
RD4/PSP4
RC7/RX/DT
QFP
RC7/RX/DT
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
VSS
VDD
RB0/INT
RB1
RB2
RB3/PGM
1
2
3
4
5 PIC16F77
6 PIC16F74
7
8
9
10
11
33
32
31
30
29
28
27
26
25
24
23
NC
RC0/T1OSO/T1CKI
OSC2/CLKOUT
OSC1/CLKIN
VSS
VDD
RE2/AN7/CS
RE1/AN6/WR
RE0/AN5/RD
RA5/AN4/SS
RA4/T0CKI
2002 Microchip Technology Inc.
DS30325B-page 3