PIC18FXX2
Data Sheet
High Performance, Enhanced FLASH
Microcontrollers with 10-Bit A/D
2001 Microchip Technology Inc.
Advance Information
DS39564A
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and may be superseded by updates.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, PIC, PICmicro,
PICMASTER, PICSTART, PRO MATE, K
EE
L
OQ
, SEEVAL,
MPLAB and The Embedded Control Solutions Company are reg-
istered trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
Total Endurance, ICSP, In-Circuit Serial Programming, Filter-
Lab, MXDEV, microID,
FlexROM, fuzzyLAB,
MPASM,
MPLINK, MPLIB, PICC, PICDEM, PICDEM.net, ICEPIC,
Migratable Memory, FanSense, ECONOMONITOR, Select
Mode and microPort 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.
© 2001, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
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, K
EE
L
OQ
®
code hopping
devices, Serial EEPROMs and microperipheral
products. In addition, Microchip’s quality
system for the design and manufacture of
development systems is ISO 9001 certified.
DS39564A - page ii
Advance Information
2001 Microchip Technology Inc.
PIC18FXX2
28/40-pin High Performance, Enhanced FLASH
Microcontrollers with 10-Bit A/D
High Performance RISC CPU:
• C compiler optimized architecture/instruction set
- Source code compatible with the PIC16C,
PIC17C and PIC18C instruction sets
• Linear program memory addressing to 32 Kbytes
•
Linear data memory addressing to 1.5 Kbytes
On-Chip Program
Memory
Device
FLASH
(bytes)
PIC18F242
PIC18F252
PIC18F442
PIC18F452
16K
32K
16K
32K
On-Chip
Data
RAM EEPROM
# Single Word (bytes)
(bytes)
Instructions
8192
16384
8192
16384
768
1536
768
1536
256
256
256
256
Peripheral Features (Continued):
• Master Synchronous Serial Port (MSSP) module,
Two modes of operation:
- 3-wire SPI™ (supports all 4 SPI modes)
- I2C™ Master and Slave mode
• Addressable USART module:
- Supports RS-485 and RS-232
• Parallel Slave Port (PSP) module
Analog Features:
• Compatible 10-bit Analog-to-Digital Converter
module (A/D) with:
- Fast sampling rate
- Conversion available during SLEEP
- DNL = ±1 LSb, INL = ±1 LSb
• Programmable Low Voltage Detection (PLVD)
- Supports interrupt on-Low Voltage Detection
• Programmable Brown-out Reset (BOR)
• Up to 10 MIPs operation:
- DC - 40 MHz osc./clock input
- 4 MHz - 10 MHz osc./clock input with PLL active
• 16-bit wide instructions, 8-bit wide data path
• Priority levels for interrupts
• 8 x 8 Single Cycle Hardware Multiplier
Special Microcontroller Features:
• 100,000 erase/write cycle Enhanced FLASH
program memory typical
• 1,000,000 erase/write cycle Data EEPROM
memory
• FLASH/Data EEPROM Retention: > 40 years
• Self-reprogrammable under software control
• 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 including:
- 4X Phase Lock Loop (of primary oscillator)
- Secondary Oscillator (32 kHz) clock input
• Single supply 5V In-Circuit Serial Programming™
(ICSP™) via two pins
• In-Circuit Debug (ICD) via two pins
Peripheral Features:
• High current sink/source 25 mA/25 mA
• Three external interrupt pins
• Timer0 module: 8-bit/16-bit timer/counter with
8-bit programmable prescaler
• Timer1 module: 16-bit timer/counter
• Timer2 module: 8-bit timer/counter with 8-bit
period register (time-base for PWM)
• Timer3 module: 16-bit timer/counter
• Secondary oscillator clock option - Timer1/Timer3
• Two Capture/Compare/PWM (CCP) modules.
CCP pins that can be configured as:
- Capture input: capture is 16-bit,
max. resolution 6.25 ns (T
CY
/16)
- Compare is 16-bit, max. resolution 100 ns (T
CY
)
- PWM output: PWM resolution is 1- to 10-bit,
Max. PWM freq. @: 8-bit resolution = 156 kHz
10-bit resolution = 39 kHz
CMOS Technology:
• Low power, high speed FLASH/EEPROM
technology
• Fully static design
• Wide operating voltage range (2.0V to 5.5V)
• Industrial and Extended temperature ranges
2001 Microchip Technology Inc.
Advance Information
DS39564A-page 1
PIC18FXX2
Pin Diagrams
RA3/AN3/V
REF
+
RA2/AN2/V
REF
-
RA1/AN1
RA0/AN0
MCLR/V
PP
NC
RB7/PGD
RB6/PGC
RB5/PGM
RB4
NC
6
5
4
3
2
1
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
PLCC
RA4/T0CKI
RA5/AN4/SS/LVDIN
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
V
DD
V
SS
OSC1/CLKI
OSC2/CLKO/RA6
RC0/T1OSO/T1CKI
NC
7
8
9
10
11
12
13
14
15
16
17
PIC18F442
PIC18F452
RB3/CCP2
*
RB2/INT2
RB1/INT1
RB0/INT0
V
DD
V
SS
RD7/PSP7
RD6/PSP6
RD5/PSP5
RD4/PSP4
RC7/RX/DT
TQFP
44
43
42
41
40
39
38
37
36
35
34
RC7/RX/DT
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
V
SS
V
DD
RB0/INT0
RB1/INT1
RB2/INT2
RB3/CCP2
*
1
2
3
4
5
6
7
8
9
10
11
33
32
31
30
29
28
27
26
25
24
23
NC
RC0/T1OSO/T1CKI
OSC2/CLKO/RA6
OSC1/CLKI
V
SS
V
DD
RE2/AN7/CS
RE1/AN6/WR
RE0/AN5/RD
RA5/AN4/SS/LVDIN
RA4/T0CKI
*
RB3 is the alternate pin for the CCP2 pin multiplexing.
DS39564A-page 2
Advance Information
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
28
27
26
25
24
23
22
21
20
19
18
NC
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
RD3/PSP3
RD2/PSP2
RD1/PSP1
RD0/PSP0
RC3/SCK/SCL
RC2/CCP1
RC1/T1OSI/CCP2
*
PIC18F442
PIC18F452
22
21
20
19
18
17
16
15
14
13
12
RA3/AN3/V
REF
+
RA2/AN2/V
REF
-
RA1/AN1
RA0/AN0
MCLR/V
PP
RB7/PGD
RB6/PGC
RB5/PGM
RB4
NC
NC
2001 Microchip Technology Inc.
PIC18FXX2
Pin Diagrams (Cont.’d)
DIP
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-
RA3/AN3/V
REF
+
RA4/T0CKI
RA5/AN4/SS/LVDIN
RE0/RD/AN5
RE1/WR/AN6
RE2/CS/AN7
V
DD
V
SS
OSC1/CLKI
OSC2/CLKO/RA6
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/PGD
RB6/PGC
RB5/PGM
RB4
RB3/CCP2
*
RB2/INT2
RB1/INT1
RB0/INT0
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
PIC18F442
Note:
Pin compatible with 40-pin PIC16C7X devices.
DIP, SOIC
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2/V
REF
-
RA3/AN3/V
REF
+
RA4/T0CKI
RA5/AN4/SS/LVDIN
V
SS
OSC1/CLKI
OSC2/CLKO/RA6
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
27
26
25
24
23
22
21
20
19
18
17
16
15
RB7/PGD
RB6/PGC
RB5/PGM
RB4
RB3/CCP2
*
RB2/INT2
RB1/INT1
RB0/INT0
V
DD
V
SS
RC7/RX/DT
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
PIC18F242
* RB3 is the alternate pin for the CCP2 pin multiplexing.
2001 Microchip Technology Inc.
Advance Information
PIC18F252
PIC18F452
DS39564A-page 3
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