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Details, datasheet, quote on part number:PIC18F4450
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Datasheet text preview:
M
PIC18F2X50
Pin Diagram:
PDIP, SOIC, SSOP
MCLR/VPP RA0/AN0 RA1/AN1 RA2/AN2 RA3/AN3/VREF RA4/T0CKI RA5/AN4 VSS OSC1/CLKIN OSC2/CLKOUT RC0/T1OSO/T1CKI RC1/T1OSI/CCP2* RC2/CCP1 VUSB ·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 RB6 RB5/SDO RB4/SDI/SDA RB3CCP2* RB2/INT2/SCK/SCL RB1/INT1 RB0/INT0 VDD VSS RC7/RX/DT RC6/TX/CK D+ D-
28-Pin Enhanced FLASH Microcontroller with Full Speed USB and 10-bit A/D Product Brief
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)
*RB3 is the alternate pin for the CCP2 pin multiplexing. Pinout subject to change.
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 I2CTM Master/Slave mode
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
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)
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
Device PIC18F2450 PIC18F2550
Program Memory # Single Word Bytes Instructions 16K 8192 32K 16384
Data SRAM (Bytes) 1024 1024
EEPROM (Bytes) 256 256
I/O 19 19
10-bit CCP A/D (ch) (PWM) 5 5 2 2
PIC18F2X50
USART Yes Yes
Timers 8-bit/16-bit 1/3 1/3
© 2001 Microchip Technology Inc.
Advance Information
DS41146C- page 1
PIC18F2X50
NOTES :
DS4114 6C-page 2
Advance Information
© 2001 Microchip Technology Inc.
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 knowledge, 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 components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights.
Trademarks The Microchip name and logo, the Microchip logo, PIC, PICmicro, PICMASTER, PICSTART, PRO MATE, KEELOQ, SEEVAL, MPLAB and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Total Endurance, ICSP, In-Circuit Serial Programming, FilterLab, MXDEV, microID, FlexROM, fuzzyLAB, 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, KEELOQ® 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.
© 2001 Microchip Technology Inc.
Advance Information
DS41146C - page 3
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