PIC16C77X
28/40-Pin, 8-Bit CMOS Microcontrollers w/ 12-Bit A/D
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
• 4K x 14 words of Program Memory,
256 x 8 bytes of Data Memory (RAM)
• Interrupt capability (up to 14 internal/external
interrupt sources)
• 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
• Fully static design
• In-Circuit Serial Programming™ (ISCP)
• Wide operating voltage range: 2.5V to 5.5V
• High Sink/Source Current 25/25 mA
• Commercial and Industrial temperature ranges
• Low-power consumption:
- < 2 mA @ 5V, 4 MHz
- 22.5
µA
typical @ 3V, 32 kHz
- < 1
µA
typical standby current
Pin Diagram
600 mil. PDIP, Windowed CERDIP
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/VRL
RA3/AN3/V
REF
+/VRH
RA4/T0CKI
RA5/AN4
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
AV
DD
AV
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/AN9/LVDIN
RB2/AN8
RB1/SS
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
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
• 12-bit multi-channel Analog-to-Digital converter
• On-chip absolute bandgap voltage reference
generator
• Synchronous Serial Port (SSP) with SPI
™
(Master
Mode) and I
2
C
™
• Universal Synchronous Asynchronous Receiver
Transmitter, supports high/low speeds and 9-bit
address mode (USART/SCI)
• Parallel Slave Port (PSP) 8-bits wide, with
external RD, WR and CS controls
• Programmable Brown-out detection circuitry for
Brown-out Reset (BOR)
• Programmable Low-voltage detection circuitry
*
*
*
*
*
*
*
Enhanced features
This is an advanced copy of the data sheet and therefore the contents and
specifications are subject to change based on device characterization.
©
1999 Microchip Technology Inc.
Advance Information
PIC16C774
DS30275A-page 1
PIC16C77X
Pin Diagrams
300 mil. SDIP, SOIC, Windowed CERDIP, SSOP
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/VRL
RA3/AN3/VREF+/VRH
RA4/T0CKI
AV
DD
AV
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
•1
2
3
5
6
7
8
9
10
11
12
13
14
4
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RB7
RB6
RB5
RB4
RB3/AN9/LVDIN
RB2/AN8
RB1/SS
RB0/INT
V
DD
V
SS
RC7/RX/DT
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
PLCC
RA4/T0CKI
RA5/AN4
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
AV
DD
AV
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
NC
6
5
4
3
2
1
44
43
42
41
40
RA3/AN3/V
REF
+/VRH
RA2/AN2/V
REF
-/VRL
RA1/AN1
RA0/AN0
MCLR/V
PP
NC
RB7
RB6
RB5
RB4
NC
PIC16C773
7
8
9
10
11
12
13
14
15
16
17
PIC16C774
39
38
37
36
35
34
33
32
31
30
29
RB3/AN9/LVDIN
RB2/AN8
RB1/SS
RB0/INT
V
DD
V
SS
RD7/PSP7
RD6/PSP6
RD5/PSP5
RD4/PSP4
RC7/RX/DT
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
18
19
20
21
22
23
24
25
26
27
28
MQFP
TQFP
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
DS30275A-page 2
Advance Information
NC
NC
RB4
RB5
RB6
RB7
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/VRL
RA3/AN3/V
REF
+/VRH
12
13
14
15
16
17
18
19
20
21
22
RC7/RX/DT
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
V
SS
V
DD
RB0/INT
RB1/SS
RB2/AN8
RB3/AN9/LVDIN
1
2
3
4
5
6
7
8
9
10
11
PIC16C774
33
32
31
30
29
28
27
26
25
24
23
NC
RC0/T1OSO/T1CKI
OSC2/CLKOUT
OSC1/CLKIN
AV
SS
AV
DD
RE2/CS/AN7
RE1/WR/AN6
RE0/RD/AN5
RA5/AN4
RA4/T0CKI
©
1999 Microchip Technology Inc.
PIC16C77X
Key Features
PICmicro™ Mid-Range Reference Manual
(DS33023)
Operating Frequency
Resets (and Delays)
Program Memory (14-bit words)
Data Memory (bytes)
Interrupts
I/O Ports
Timers
Capture/Compare/PWM modules
Serial Communications
Parallel Communications
12-bit Analog-to-Digital Module
Instruction Set
PIC16C773
DC - 20 MHz
POR, BOR, MCLR, WDT
(PWRT, OST)
4K
256
13
Ports A,B,C
3
2
MSSP, USART
—
6 input channels
35 Instructions
PIC16C774
DC - 20 MHz
POR, BOR, MCLR, WDT
(PWRT, OST)
4K
256
14
Ports A,B,C,D,E
3
2
MSSP, USART
PSP
10 input channels
35 Instructions
©
1999 Microchip Technology Inc.
Advance Information
DS30275A-page 3
PIC16C77X
Table of Contents
1.0 Device Overview ............................................................................................................................................................................ 5
2.0 Memory Organization................................................................................................................................................................... 11
3.0 I/O Ports ....................................................................................................................................................................................... 27
4.0 Timer0 Module ............................................................................................................................................................................. 39
5.0 Timer1 Module ............................................................................................................................................................................. 41
6.0 Timer2 Module ............................................................................................................................................................................. 45
7.0 Capture/Compare/PWM (CCP) Module(s)................................................................................................................................... 47
8.0 Master Synchronous Serial Port (MSSP) Module ........................................................................................................................ 53
9.0 Addressable Universal Synchronous Asynchronous Receiver Transmitter (USART) ................................................................. 97
10.0 Voltage Reference Module and Low-voltage Detect.................................................................................................................. 113
11.0 Analog-to-Digital Converter (A/D) Module ................................................................................................................................. 117
12.0 Special Features of the CPU ..................................................................................................................................................... 127
13.0 Instruction Set Summary............................................................................................................................................................ 143
14.0 Development Support ................................................................................................................................................................ 145
15.0 Electrical Characteristics............................................................................................................................................................ 151
16.0 DC and AC Characteristics Graphs and Tables ........................................................................................................................ 173
17.0 Packaging Information ............................................................................................................................................................... 175
Appendix A: Revision History ......................................................................................................................................................... 187
Appendix B: Device Differences..................................................................................................................................................... 187
Appendix C: Conversion Considerations........................................................................................................................................ 187
Index .................................................................................................................................................................................................. 189
Bit/Register Cross-Reference List...................................................................................................................................................... 196
On-Line Support................................................................................................................................................................................. 197
Reader Response .............................................................................................................................................................................. 198
PIC16C77X Product Identification System......................................................................................................................................... 199
To Our Valued Customers
Most Current Data Sheet
To obtain the most up-to-date version of this data sheet, please check our Worldwide Web site at:
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 may exist for current devices, describing minor operational differences (from the data sheet) and recommended
workarounds. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the revi-
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To determine if an errata sheet exists for a particular device, please check with one of the following:
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Corrections to this Data Sheet
We constantly strive to improve the quality of all our products and documentation. We have spent a great deal of time to ensure
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We appreciate your assistance in making this a better document.
DS30275A-page 4
Advance Information
©
1999 Microchip Technology Inc.
PIC16C77X
1.0
DEVICE OVERVIEW
This document contains device-specific information.
Additional information may be found in the PICmicro™
Mid-Range Reference Manual, (DS33023), which may
be obtained from your local Microchip Sales Represen-
tative or downloaded from the Microchip website. The
Reference Manual should be considered a comple-
mentary document to this data sheet, and is highly rec-
ommended reading for a better understanding of the
device architecture and operation of the peripheral
modules.
There a two devices (PIC16C773 and PIC16C774)
covered by this datasheet. The PIC16C773 devices
come in 28-pin packages and the PIC16C774 devices
come in 40-pin packages. The 28-pin devices do not
have a Parallel Slave Port implemented.
The following two figures are device block diagrams
sorted by pin number; 28-pin for
Figure 1-1
and 40-pin
for
Figure 1-2.
The 28-pin and 40-pin pinouts are listed
in
Table 1-1
and
Table 1-2,
respectively.
FIGURE 1-1:
PIC16C773 BLOCK DIAGRAM
13
EPROM
Program
Memory
4K x 14
8 Level Stack
(13-bit)
Program Counter
Data Bus
8
PORTA
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-/VRL
RA3/AN3/V
REF
+/VRH
RA4/T0CKI
RAM
File
Registers
256 x 8
RAM Addr
(1)
9
PORTB
Program
Bus
14
Instruction reg
Direct Addr
7
Addr MUX
8
Indirect
Addr
FSR reg
8
STATUS reg
PORTC
RB0/INT
RB1/SS
RB2/AN8
RB3/AN9/LVDIN
RB7:RB4
3
Instruction
Decode &
Control
OSC1/CLKIN
OSC2/CLKOUT
Timing
Generation
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Brown-out
Reset
ALU
8
W reg
MUX
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
Low-voltage
Detect
Precision
Reference
MCLR
V
DD
, V
SS
AV
DD
AV
SS
12-bit
ADC
Timer0
Timer1
Timer2
CCP1,2
Synchronous
Serial Port
USART
Note 1: Higher order bits are from the STATUS register.
©
1999 Microchip Technology Inc.
Advance Information
DS30275A-page 5
