PIC16C925/926
64/68-Pin CMOS Microcontrollers with LCD Driver
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-bit words of EPROM program memory,
336 bytes general purpose registers (SRAM),
60 special function registers
• Pinout compatible with PIC16C923/924
Analog Features:
• 10-bit 5-channel Analog-to-Digital Converter (A/D)
• Brown-out Reset (BOR)
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
• Selectable oscillator options
• In-Circuit Serial Programming™ (ICSP™) via
two pins
• Processor read access to program memory
Peripheral Features:
• 25 I/O pins with individual direction control and
25-27 input only pins
• Timer0 module: 8-bit timer/counter with program-
mable 8-bit prescaler
• Timer1 module: 16-bit timer/counter, can be incre-
mented during SLEEP via external crystal/clock
• Timer2 module: 8-bit timer/counter with 8-bit
period register, prescaler, and postscaler
• One Capture, Compare, PWM module
• Synchronous Serial Port (SSP) module with
two modes of operation:
- 3-wire SPI (supports all 4 SPI modes)
- I
2
C™ Slave mode
• Programmable LCD timing module:
- Multiple LCD timing sources available
- Can drive LCD panel while in SLEEP mode
- Static, 1/2, 1/3, 1/4 multiplex
- Static drive and 1/3 bias capability
- 16 bytes of dedicated LCD RAM
- Up to 32 segments, up to 4 commons
Common
1
2
3
4
Segment
32
31
30
29
Pixels
32
62
90
116
CMOS Technology:
• Low power, high speed CMOS/EPROM
technology
• Fully static design
• Wide operating voltage range: 2.5V to 5.5V
• Commercial and Industrial temperature ranges
• Low power consumption
2001-2013 Microchip Technology Inc.
Preliminary
DS39544B-page 1
PIC16C925/926
Pin Diagrams
PLCC, CLCC
RA4/T0CKI
RA5/AN4/SS
RB1
RB0/INT
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
C1
C2
V
LCD
2
V
LCD
3
A
VDD
V
DD
V
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
9
8
7
6
5
4
3
2
1
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
RA3/AN3/V
REF
+
RA2/AN2/V
REF
-
V
SS
RA1/AN1
RA0/AN0
RB2
RB3
MCLR/V
PP
N/C
RB4
RB5
RB7
RB6
V
DD
COM0
RD7/SEG31/COM1
RD6/SEG30/COM2
PIC16C92X
RD5/SEG29/COM3
RG6/SEG26
RG5/SEG25
RG4/SEG24
RG3/SEG23
RG2/SEG22
RG1/SEG21
RG0/SEG20
RG7/SEG28
RF7/SEG19
RF6/SEG18
RF5/SEG17
RF4/SEG16
RF3/SEG15
RF2/SEG14
RF1/SEG13
RF0/SEG12
LEGEND:
Input Pin
Output Pin
Input/Output Pin
Digital Input/LCD Output Pin
LCD Output Pin
RC1/T1OSI
RC2/CCP1
V
LCD
1
VLCDADJ
RD0/SEG00
RD1/SEG01
RD2/SEG02
RD3/SEG03
RD4/SEG04
RE7/SEG27
RE0/SEG05
RE1/SEG06
RE2/SEG07
RE3/SEG08
RE4/SEG09
RE5/SEG10
RE6/SEG11
DS39544B-page 2
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
Preliminary
2001-2013 Microchip Technology Inc.
PIC16C925/926
Pin Diagrams (Continued)
TQFP
RA4/T0CKI
RA5/AN4/SS
RB1
RB0/INT
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
C1
C2
V
LCD
2
V
LCD
3
V
DD
V
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
RA3/AN3/V
REF
+
RA2/AN2/V
REF
-
V
SS
RA1/AN1
RA0/AN0
RB2
RB3
MCLR/V
PP
RB4
RB5
RB7
RB6
V
DD
COM0
RD7/SEG31/COM1
RD6/SEG30/COM2
PIC16C92X
RD5/SEG29/COM3
RG6/SEG26
RG5/SEG25
RG4/SEG24
RG3/SEG23
RG2/SEG22
RG1/SEG21
RG0/SEG20
RF7/SEG19
RF6/SEG18
RF5/SEG17
RF4/SEG16
RF3/SEG15
RF2/SEG14
RF1/SEG13
RF0/SEG12
LEGEND:
Input Pin
Output Pin
Input/Output Pin
Digital Input/LCD Output Pin
LCD Output Pin
2001-2013 Microchip Technology Inc.
RC1/T1OSI
RC2/CCP1
V
LCD
1
VLCDADJ
RD0/SEG00
RD1/SEG01
RD2/SEG02
RD3/SEG03
RD4/SEG04
RE0/SEG05
RE1/SEG06
RE2/SEG07
RE3/SEG08
RE4/SEG09
RE5/SEG10
RE6/SEG11
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Preliminary
DS39544B-page 3
PIC16C925/926
Table of Contents
1.0 Device Overview ................................................................................................................................................... 5
2.0 Memory Organization .......................................................................................................................................... 11
3.0 Reading Program Memory .................................................................................................................................. 27
4.0 I/O Ports .............................................................................................................................................................. 29
5.0 Timer0 Module .................................................................................................................................................... 41
6.0 Timer1 Module .................................................................................................................................................... 47
7.0 Timer2 Module .................................................................................................................................................... 51
8.0 Capture/Compare/PWM (CCP) Module .............................................................................................................. 53
9.0 Synchronous Serial Port (SSP) Module .............................................................................................................. 59
10.0 Analog-to-Digital Converter (A/D) Module ........................................................................................................... 75
11.0 LCD Module ........................................................................................................................................................ 83
12.0 Special Features of the CPU............................................................................................................................... 97
13.0 Instruction Set Summary ................................................................................................................................... 113
14.0 Development Support ....................................................................................................................................... 133
15.0 Electrical Characteristics ................................................................................................................................... 139
16.0 DC and AC Characteristics Graphs and Tables ................................................................................................ 159
17.0 Packaging Information ...................................................................................................................................... 161
Appendix A: Revision History.................................................................................................................................... 167
Appendix B: Device Differences ............................................................................................................................... 167
Appendix C: Conversion Considerations .................................................................................................................. 168
Index .......................................................................................................................................................................... 169
On-Line Support ......................................................................................................................................................... 175
Reader Response ...................................................................................................................................................... 176
PIC16C925/926 Product Identification System .......................................................................................................... 177
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DS39544B-page 4
Preliminary
2001-2013 Microchip Technology Inc.
PIC16C925/926
1.0
DEVICE OVERVIEW
This document contains device-specific information for
the following devices:
1.
2.
PIC16C925
PIC16C926
These devices come in 64-pin and 68-pin packages, as
well as die form. Both configurations offer identical
peripheral devices and other features. The only differ-
ence between the DSTEMP and DSTEMP is the addi-
tional EPROM and data memory offered in the latter.
An overview of features is presented in Table 1-1.
A UV-erasable, CERQUAD packaged version (compat-
ible with PLCC) is also available for both the
PIC16C925 and PIC16C926. This version is ideal for
cost effective code development.
A block diagram for the PIC16C925/926 family archi-
tecture is presented in Figure 1-1.
The PIC16C925/926 series is a family of low cost, high
performance, CMOS, fully static, 8-bit microcontrollers
with an integrated LCD Driver module, in the
PIC16CXXX mid-range family.
For the PIC16C925/926 family, there are two device
“types” as indicated in the device number:
1.
2.
C,
as in PIC16C926. These devices operate
over the standard voltage range.
LC,
as in PIC16LC926. These devices operate
over an extended voltage range.
TABLE 1-1:
PIC16C925/926 DEVICE FEATURES
Features
Operating Frequency
PIC16C925
DC-20 MHz
4K
176
TMR0,TMR1,TMR2
1
SPI/I
2
C
—
5
4 Com, 32 Seg
9
25
27
2.5-5.5
Yes
Yes
64-pin TQFP
68-pin PLCC
68-pin CLCC (CERQUAD)
Die
PIC16C926
DC-20 MHz
8K
336
TMR0,TMR1,TMR2
1
SPI/I
2
C
—
5
4 Com, 32 Seg
9
25
27
2.5-5.5
Yes
Yes
64-pin TQFP
68-pin PLCC
68-pin CLCC (CERQUAD)
Die
EPROM Program Memory (words)
Data Memory (bytes)
Timer Module(s)
Capture/Compare/PWM Module(s)
Serial Port(s)
(SPI/I
2
C, USART)
Parallel Slave Port
A/D Converter (10-bit) Channels
LCD Module
Interrupt Sources
I/O Pins
Input Pins
Voltage Range (V)
In-Circuit Serial Programming
Brown-out Reset
Packages
2001-2013 Microchip Technology Inc.
Preliminary
DS39544B-page 5
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