Note the following details of the code protection feature on Microchip devices:
•
•
•
Microchip products meet the specification contained in their particular Microchip Data Sheet.
Microchip believes that its family of products is one of the most secure families 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
knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data
Sheets. Most likely, the person doing so is 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
products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts
allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.
Information contained in this publication regarding device
applications and the like is provided only for your convenience
and may be superseded by updates. It is your responsibility to
ensure that your application meets with your specifications.
MICROCHIP MAKES NO REPRESENTATIONS OR
WARRANTIES OF ANY KIND WHETHER EXPRESS OR
IMPLIED, WRITTEN OR ORAL, STATUTORY OR
OTHERWISE, RELATED TO THE INFORMATION,
INCLUDING BUT NOT LIMITED TO ITS CONDITION,
QUALITY, PERFORMANCE, MERCHANTABILITY OR
FITNESS FOR PURPOSE. Microchip disclaims all liability
arising from this information and its use. Use of Microchip
devices in life support and/or safety applications is entirely at
the buyer’s risk, and the buyer agrees to defend, indemnify and
hold harmless Microchip from any and all damages, claims,
suits, or expenses resulting from such use. No licenses are
conveyed, implicitly or otherwise, under any Microchip
intellectual property rights.
Trademarks
The Microchip name and logo, the Microchip logo, Accuron,
dsPIC, K
EE
L
OQ
, K
EE
L
OQ
logo, MPLAB, PIC, PICmicro,
PICSTART, rfPIC, SmartShunt and UNI/O are registered
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
FilterLab, Hampshire, Linear Active Thermistor, MXDEV,
MXLAB, SEEVAL, SmartSensor and The Embedded Control
Solutions Company are registered trademarks of Microchip
Technology Incorporated in the U.S.A.
Analog-for-the-Digital Age, Application Maestro, CodeGuard,
dsPICDEM, dsPICDEM.net, dsPICworks, dsSPEAK, ECAN,
ECONOMONITOR, FanSense, In-Circuit Serial
Programming, ICSP, ICEPIC, Mindi, MiWi, MPASM, MPLAB
Certified logo, MPLIB, MPLINK, mTouch, nanoWatt XLP,
PICkit, PICDEM, PICDEM.net, PICtail, PIC
32
logo, PowerCal,
PowerInfo, PowerMate, PowerTool, REAL ICE, rfLAB, Select
Mode, Total Endurance, TSHARC, WiperLock and ZENA are
trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries.
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.
© 2009, Microchip Technology Incorporated, Printed in the
U.S.A., All Rights Reserved.
Printed on recycled paper.
Microchip received ISO/TS-16949:2002 certification for its worldwide
headquarters, design and wafer fabrication facilities in Chandler and
Tempe, Arizona; Gresham, Oregon and design centers in California
and India. The Company’s quality system processes and procedures
are for its PIC
®
MCUs and dsPIC
®
DSCs, K
EE
L
OQ
®
code hopping
devices, Serial EEPROMs, microperipherals, nonvolatile memory and
analog products. In addition, Microchip’s quality system for the design
and manufacture of development systems is ISO 9001:2000 certified.
DS39682E-page ii
©
2009 Microchip Technology Inc.
PIC18F45J10 FAMILY
28/40/44-Pin High-Performance, RISC Microcontrollers
Special Microcontroller Features:
•
•
•
•
•
•
•
Operating Voltage Range: 2.0V to 3.6V
5.5V Tolerant Input (digital pins only)
On-Chip 2.5V Regulator
4x Phase Lock Loop (PLL) available for Crystal
and Internal Oscillators
Self-Programmable under Software Control
Low-Power, High-Speed CMOS Flash Technology
C Compiler Optimized Architecture:
- Optional extended instruction set designed to
optimize re-entrant code
Priority Levels for Interrupts
8 x 8 Single-Cycle Hardware Multiplier
Extended Watchdog Timer (WDT):
- Programmable period from 4 ms to 131s
Single-Supply In-Circuit Serial Programming™
(ICSP™) via Two Pins
In-Circuit Debug (ICD) with Three Breakpoints via
Two Pins
Power-Managed modes with Clock Switching:
- Run: CPU on, peripherals on
- Idle: CPU off, peripherals on
- Sleep: CPU off, peripherals off
Peripheral Highlights:
• High-Current Sink/Source 25 mA/25 mA
(PORTB and PORTC)
• Three Programmable External Interrupts
• Four Input Change Interrupts
• One Capture/Compare/PWM (CCP) module
• One Enhanced Capture/Compare/PWM (ECCP)
module:
- One, two or four PWM outputs
- Selectable polarity
- Programmable dead time
- Auto-shutdown and auto-restart
• Two Master Synchronous Serial Port (MSSP)
modules supporting 3-Wire SPI (all 4 modes) and
I
2
C™ Master and Slave modes
• One Enhanced Addressable USART module:
- Supports RS-485, RS-232 and LIN/J2602
- Auto-wake-up on Start bit
- Auto-Baud Detect (ABD)
• 10-Bit, up to 13-Channel Analog-to-Digital
Converter module (A/D):
- Auto-acquisition capability
- Conversion available during Sleep
- Self-calibration feature
• Dual Analog Comparators with Input Multiplexing
•
•
•
•
•
•
Flexible Oscillator Structure:
•
•
•
•
•
•
Two Crystal modes, up to 40 MHz
Two External Clock modes, up to 40 MHz
Internal 31 kHz Oscillator
Secondary Oscillator using Timer1 @ 32 kHz
Two-Speed Oscillator Start-up
Fail-Safe Clock Monitor:
- Allows for safe shutdown if peripheral clock
stops
Program Memory
Device
SRAM Data
Flash # Single-Word Memory
(bytes)
(bytes) Instructions
16K
32K
16K
32K
8192
16384
8192
16384
1024
1024
1024
1024
I/O
EUSART
MSSP
10-Bit
A/D (ch)
CCP/
ECCP
(PWM)
2/0
2/0
1/1
1/1
1
1
2
2
SPI
Y
Y
Y
Y
Master
I
2
C™
Y
Y
Y
Y
Comparators
2
2
2
2
PIC18F24J10
PIC18F25J10
PIC18F44J10
PIC18F45J10
21
21
32
32
10
10
13
13
1
1
1
1
©
2009 Microchip Technology Inc.
DS39682E-page 1
Timers
8/16-Bit
1/2
1/2
1/2
1/2
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