• 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 modules
- Capture is 16-bit, max. resolution is 200 ns
- Compare is 16-bit, max. resolution is 200 ns
- PWM max. resolution is 10-bit
• 8-bit multichannel Analog-to-Digital converter
• Synchronous Serial Port (SSP) with SPI
TM
and I
2
C
TM
• Universal Synchronous Asynchronous Receiver
Transmitter (USART/SCI)
• Parallel Slave Port (PSP), 8-bits wide with
external RD, WR and CS controls
• Brown-out detection circuitry for Brown-out Reset
(BOR)
PIC16CXX Microcontroller Core Features:
• 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
• 4 K x 14 words of Program Memory,
192 x 8 bytes of Data Memory (RAM)
• Interrupt capability
• Eight-level deep hardware stack
• Direct, indirect and relative addressing modes
• 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
• Low power, high speed CMOS EPROM
technology
• Wide operating voltage range: 2.5V to 5.5V
• High Sink/Source Current 25/25 mA
• Commercial, Industrial and Automotive
temperature ranges
• Low power consumption:
- < 5 mA @ 5V, 4 MHz
- 23
µA
typical @ 3V, 32 kHz
- < 1.2
µA
typical standby current
Devices
PIC16C63A
PIC16C65B
PIC16C73B
PIC16C74B
I/O
Pins
22
33
22
33
A/D
Chan.
-
-
5
8
PSP
No
Yes
No
Yes
Interrupts
10
11
11
12
Pin Diagram:
PDIP, Windowed CERDIP
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
REF
RA4/T0CKI
RA5/SS/AN4
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
V
DD
V
SS
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
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0/INT
V
DD
V
SS
RD7/PSP7
RD6/PSP6
RD5/PSP5
RD4/PSP4
RC7/RX/DT
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
RD3/PSP3
RD2/PSP2
2000 Microchip Technology Inc.
PIC16C65B
PIC16C74B
DS30605C-page 1
PIC16C63A/65B/73B/74B
SDIP, SOIC, Windowed CERDIP
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
REF
RA4/T0CKI
RA5/SS/AN4
V
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RA3/AN3/V
REF
RA2/AN2
RA1/AN1
RA0/AN0
MCLR/V
PP
NC
RB7
RB6
RB5
RB4
NC
•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
PLCC
MQFP
TQFP
RB3
RB2
RB1
RB0/INT
V
DD
V
SS
RD7/PSP7
RD6/PSP6
RD5/PSP5
RD4/PSP4
RC7/RX/DT
18
19
20
21
22
23
24
25
26
27
28
Key Features
PICmicro™ Mid-Range MCU Family
Reference Manual (DS33023)
Program Memory (EPROM) x 14
Data Memory (Bytes) x 8
Pins
Parallel Slave Port
Capture/Compare/PWM Modules
Timer Modules
A/D Channels
Serial Communication
In-Circuit Serial Programming
Brown-out Reset
Interrupt Sources
Packages
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
NC
PIC16C63A
4K
192
28
—
2
3
—
SPI/I
2
C, USART
Yes
Yes
10
28-pin SDIP, SOIC,
SSOP,
Windowed CERDIP
PIC16C65B
4K
192
40
Yes
2
3
—
SPI/I
2
C, USART
Yes
Yes
11
40-pin PDIP;
44-pin PLCC,
MQFP, TQFP,
Windowed CERDIP
NC
NC
RB4
RB5
RB6
RB7
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
REF
12
13
14
15
16
17
18
19
20
21
22
RA4/T0CKI
RA5/SS/AN4
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
V
DD
V
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
NC
6
5
4
3
2
1
44
43
42
41
40
7
8
9
10
11
12
13
14
15
16
17
PIC16C65B
PIC16C74B
39
38
37
36
35
34
33
32
31
30
29
44
43
42
41
40
39
38
37
36
35
34
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
RD3/PSP3
RD2/PSP2
RD1/PSP1
RD0/PSP0
RC3/SCK/SCL
RC2/CCP1
RC1/T1OSI/CCP2
NC
RB7
RB6
RB5
RB4
RB3
RB2
RB1
RB0/INT
V
DD
V
SS
RC7/RX/DT
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
PIC16C63A
PIC16C73B
RC7/RX/DT
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
V
SS
V
DD
RB0/INT
RB1
RB2
RB3
1
2
3
4
5
6
7
8
9
10
11
PIC16C65B
PIC16C74B
33
32
31
30
29
28
27
26
25
24
23
NC
RC0/T1OSO/T1CKI
OSC2/CLKOUT
OSC1/CLKIN
V
SS
V
DD
RE2/CS/AN7
RE1/WR/AN6
RE0/RD/AN5
RA5/SS/AN4
RA4/T0CKI
PIC16C73B
4K
192
28
—
2
3
5
SPI/I
2
C, USART
Yes
Yes
11
28-pin SDIP, SOIC,
SSOP,
Windowed CERDIP
PIC16C74B
4K
192
40
Yes
2
3
8
SPI/I
2
C, USART
Yes
Yes
12
40-pin PDIP;
44-pin PLCC,
MQFP, TQFP,
Windowed CERDIP
DS30605C-page 2
2000 Microchip Technology Inc.
PIC16C63A/65B/73B/74B
Table of Contents
1.0 General Description...................................................................................................................................................................... 5
10.0 Synchronous Serial Port (SSP) Module ..................................................................................................................................... 55
13.0 Special Features of the CPU...................................................................................................................................................... 85
14.0 Instruction Set Summary ............................................................................................................................................................ 99
15.0 Development Support............................................................................................................................................................... 107
17.0 DC and AC Characteristics Graphs and Tables....................................................................................................................... 139
Appendix D: Migration from Baseline to Mid-Range Devices......................................................................................................... 168
Product Identification System ............................................................................................................................................................ 177
TO OUR VALUED CUSTOMERS
It is our intention to provide our valued customers with the best documentation possible to ensure successful use of your Microchip
products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
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If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
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in the back of this data sheet to (480) 792-4150.
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http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000A is version A of document DS30000).
Errata
An errata sheet, describing minor operational differences from the data sheet and recommended workarounds, may exist for current
devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revision
of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site; http://www.microchip.com
• Your local Microchip sales office (see last page)
• The Microchip Corporate Literature Center; U.S. FAX: (480) 792-7277
When contacting a sales office or the literature center, please specify which device, revision of silicon and data sheet (include liter-
ature number) you are using.
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Register on our web site at
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to receive the most current information on all of our products.
2000 Microchip Technology Inc.
DS30605C-page 3
PIC16C63A/65B/73B/74B
NOTES:
DS30605C-page 4
2000 Microchip Technology Inc.
PIC16C63A/65B/73B/74B
1.0
GENERAL DESCRIPTION
The PIC16C63A/65B/73B/74B devices are low cost,
high performance, CMOS, fully-static, 8-bit micro-
controllers in the PIC16CXX mid-range family.
All PICmicro
®
microcontrollers employ an advanced
RISC architecture. The PIC16CXX microcontroller
family has enhanced core features, eight-level deep
stack and multiple internal and external interrupt
sources. The separate instruction and data buses of
the Harvard architecture allow a 14-bit wide instruction
word with the separate 8-bit wide data. The two stage
instruction pipeline allows all instructions to execute in
a single cycle, except for program branches, which
require two cycles. A total of 35 instructions (reduced
instruction set) are available. Additionally, a large reg-
ister set gives some of the architectural innovations
used to achieve a very high performance.
The
PIC16C63A/73B
devices have 22 I/O pins. The
PIC16C65B/74B
devices have 33 I/O pins. Each
device has 192 bytes of RAM. In addition, several
peripheral features are available, including: three timer/
counters, two Capture/Compare/PWM modules, and
two serial ports. The Synchronous Serial Port (SSP)
can be configured as either a 3-wire Serial Peripheral
Interface (SPI) or the two-wire Inter-Integrated Circuit
(I
2
C) bus. The Universal Synchronous Asynchronous
Receiver Transmitter (USART) is also known as the
Serial Communications Interface or SCI. Also, a 5-
channel high speed 8-bit A/D is provided on the
PIC16C73B,
while the
PIC16C74B
offers 8 channels.
The 8-bit resolution is ideally suited for applications
requiring low cost analog interface, e.g., thermostat
control, pressure sensing, etc.
The PIC16C63A/65B/73B/74B devices have special
features to reduce external components, thus reducing
cost, enhancing system reliability and reducing power
consumption. There are four oscillator options, of which
the single pin RC oscillator provides a low cost solution,
the LP oscillator minimizes power consumption, XT is
a standard crystal, and the HS is for high speed crys-
tals. The SLEEP (power-down) feature provides a
power-saving mode. The user can wake-up the chip
from SLEEP through several external and internal
interrupts and RESETS.
A highly reliable Watchdog Timer (WDT), with its own
on-chip RC oscillator, provides protection against soft-
ware lockup, and also provides one way of waking the
device from SLEEP.
A UV erasable CERDIP packaged version is ideal for
code development, while the cost effective One-Time-
Programmable (OTP) version is suitable for production
in any volume.
The PIC16C63A/65B/73B/74B devices fit nicely in
many applications ranging from security and remote
sensors to appliance control and automotive. The
EPROM technology makes customization of applica-
tion programs (transmitter codes, motor speeds,
receiver frequencies, etc.) extremely fast and con-
venient. The small footprint packages make this micro-
controller series perfect for all applications with space
limitations. Low cost, low power, high performance,
ease of use and I/O flexibility make the PIC16C63A/
65B/73B/74B devices very versatile, even in areas
where no microcontroller use has been considered
before (e.g., timer functions, serial communication,
capture and compare, PWM functions and coprocessor
applications).
1.1
Family and Upward Compatibility
Users familiar with the PIC16C5X microcontroller fam-
ily will realize that this is an enhanced version of the
PIC16C5X architecture. Please refer to Appendix A for
a detailed list of enhancements. Code written for the
PIC16C5X can be easily ported to the PIC16CXX fam-
ily of devices (Appendix B).
1.2
Development Support
PICmicro
®
devices are supported by the complete line
of Microchip Development tools.
Please refer to Section 15.0 for more details about
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