2001 Microchip Technology Inc.
Advance Information
DS41146C-page 1
M
PIC18F2X50
High Performance RISC CPU:
C compiler optimized architecture/instruction set:
- Source code compatible with the
PIC18CXXX instruction set
Linear program memory addressing;
Linear data memory addressing
256 bytes of EEPROM data memory
Up to 12 MIPs operation:
- DC - 48 MHz clock
- 4 MHz - 12 MHz clock with PLL active
16-bit wide instructions, 8-bit wide data path
Priority levels for interrupts
8 x 8 Single Cycle Hardware Multiplier
Pinout compatible with PIC16C745 (USB)
Peripheral Features:
High current sink/source 25 mA/25 mA
Three external interrupt pins
Three 16-bit timer/counters
One 8-bit timer/counter
Secondary oscillator clock option - Timer1/Timer3
Two Capture/Compare/PWM (CCP) modules
USART
Synchronous Serial Port with SPITM Master mode
and I
2
CTM Master/Slave mode
USB Features:
Meets USB1.1 full speed specification
(12 Mb per second)
16 endpoints
512 byte dual port buffer
Integrated Transceiver
Firmware control of attach/detach
Analog Features:
5-ch 10-bit Analog-to-Digital Converter (A/D)
Low Voltage Detection (PLVD) module
Programmable Brown-out Reset (PBOR)
Pin Diagram:
Special Microcontroller Features:
100,000 erase/write cycle Enhanced FLASH
program memory typical
1,000,000 erase/write cycle Data EEPROM
memory typical
Data EEPROM Retention > 40 years
Self-reprogrammable under software control
In-Circuit Serial ProgrammingTM (ICSPTM) via two pins
Single supply 5V In-Circuit Serial Programming
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
- 8-stage clock divider for low power designs
In-Circuit Debug (ICD) via two pins
CMOS Technology:
Low power, high speed FLASH/EEPROM technology
Fully static design
USB operating voltage range - 4.35V to 5.25V
(3.3V detached)
Industrial temperature ranges
Low power consumption
RB7
RB6
RB5/SDO
RB4/SDI/SDA
RB3CCP2*
RB2/INT2/SCK/SCL
RB1/INT1
RB0/INT0
V
DD
V
SS
RC7/RX/DT
RC6/TX/CK
D+
D-
MCLR/V
PP
RA0/AN0
RA1/AN1
RA2/AN2
RA3/AN3/V
REF
RA4/T0CKI
RA5/AN4
V
SS
OSC1/CLKIN
OSC2/CLKOUT
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2*
RC2/CCP1
V
USB
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
P
I
C
1
8
F
2X
50
PDIP, SOIC, SSOP
*RB3 is the alternate pin for the CCP2 pin multiplexing.
Pinout subject to change.
Device
Program Memory
Data
SRAM
(Bytes)
EEPROM
(Bytes)
I/O
10-bit
A/D (ch)
CCP
(PWM)
USART
Timers
8-bit/16-bit
Bytes
# Single Word
Instructions
PIC18F2450
16K
8192
1024
256
19
5
2
Yes
1 / 3
PIC18F2550
32K
16384
1024
256
19
5
2
Yes
1 / 3
28-Pin Enhanced FLASH Microcontroller with
Full Speed USB and 10-bit A/D Product Brief
2001 Microchip Technology Inc.
Advance Information
DS41146C - page 3
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, FilterLab,
MXDEV, microID,
Flex
ROM,
fuzzy
LAB, MPASM, MPLINK,
MPLIB, PICC, PICDEM, PICDEM.net, ICEPIC, Migratable
Memory, FanSense, ECONOMONITOR, Select Mode, dsPIC,
rfPIC 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.
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.
DS41146C-page 4
Advance Information
2001 Microchip Technology Inc.
M
AMERICAS
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