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    89C52 MICROCONTROLLER FREE Search Results

    89C52 MICROCONTROLLER FREE Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    TMP89FM82DUG Toshiba Electronic Devices & Storage Corporation 8-bit Microcontroller/Processing Performance Equivalent to a 16-bit MCU/LQFP48-P-0707-0.50D Visit Toshiba Electronic Devices & Storage Corporation
    TMP89FS60BFG Toshiba Electronic Devices & Storage Corporation 8-bit Microcontroller/Processing Performance Equivalent to a 16-bit MCU/P-LQFP64-1414-0.80-002 Visit Toshiba Electronic Devices & Storage Corporation
    TMP89FS63BUG Toshiba Electronic Devices & Storage Corporation 8-bit Microcontroller/Processing Performance Equivalent to a 16-bit MCU/P-LQFP52-1010-0.65-002 Visit Toshiba Electronic Devices & Storage Corporation
    TMP89FS62BUG Toshiba Electronic Devices & Storage Corporation 8-bit Microcontroller/Processing Performance Equivalent to a 16-bit MCU/P-LQFP44-1010-0.80-003 Visit Toshiba Electronic Devices & Storage Corporation
    TMP89FS60BUG Toshiba Electronic Devices & Storage Corporation 8-bit Microcontroller/Processing Performance Equivalent to a 16-bit MCU/P-LQFP64-1010-0.50-003 Visit Toshiba Electronic Devices & Storage Corporation

    89C52 MICROCONTROLLER FREE Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    89C51 APPLICATIONS

    Abstract: 89c51 microcontroller circuit diagram 20 pin 89C51 89c51 instruction set 89c51 c programming examples master slave communication using 89c51 89C51 interfacing with peripherals microcontroller 89c51 pin diagram 89c52 pin diagram application notes 89c51
    Text: INTEGRATED CIRCUITS 89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash Product specification 1999 Oct 27 Replaces Datasheets 89C51 of 1999 Apr 01 and 89C52/89C54/89C58 of 1999 Apr 01 Philips Semiconductors Philips Semiconductors


    Original     		89C51/89C52/89C54/89C58 80C51 4K/8K/16K/32K 89C51 89C52/89C54/89C58 89C51/89C52/89C54/89C58 89C51RC 89C51 APPLICATIONS 89c51 microcontroller circuit diagram 20 pin 89C51 89c51 instruction set 89c51 c programming examples master slave communication using 89c51 89C51 interfacing with peripherals microcontroller 89c51 pin diagram 89c52 pin diagram application notes 89c51 PDF

    application notes 89c51

    Abstract: 89C51 interfacing master slave communication using 89c51 89C52 89C58 89C51 APPLICATIONS 89C52 MICROCONTROLLER DATASHEET 89c51 c programming examples 89c52 microcontroller 89c51 number lock
    Text: INTEGRATED CIRCUITS 89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash Product specification 1999 Oct 27 Replaces Datasheets 89C51 of 1999 Apr 01 and 89C52/89C54/89C58 of 1999 Apr 01 Philips Semiconductors Philips Semiconductors


    Original     		89C51/89C52/89C54/89C58 80C51 4K/8K/16K/32K 89C51 89C52/89C54/89C58 89C51/89C52/89C54/89C58 application notes 89c51 89C51 interfacing master slave communication using 89c51 89C52 89C58 89C51 APPLICATIONS 89C52 MICROCONTROLLER DATASHEET 89c51 c programming examples 89c52 microcontroller 89c51 number lock PDF

    40 pin 89C51

    Abstract: 89c52 pin diagram all 89c51 microcontroller references book comparison 89C51 89c52 89C51 interfacing P89C58UBA P89C58 led interfacing with 89C51 89c51 microcontroller 89C52
    Text: INTEGRATED CIRCUITS Next 89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash Product specification 1999 Oct 27 Replaces Datasheets 89C51 of 1999 Apr 01 and 89C52/89C54/89C58 of 1999 Apr 01 Philips Semiconductors Next Back Philips Semiconductors


    Original     		89C51/89C52/89C54/89C58 80C51 4K/8K/16K/32K 89C51 89C52/89C54/89C58 89C51/89C52/89C54/89C58 40 pin 89C51 89c52 pin diagram all 89c51 microcontroller references book comparison 89C51 89c52 89C51 interfacing P89C58UBA P89C58 led interfacing with 89C51 89c51 microcontroller 89C52 PDF

    interfacing 89c51 with 4k ram

    Abstract: 89c52 with external ram 40 pin PHILIPS 89C51 microcontroller 89c51 parallel programming 89C51 EXTERNAL RAM interfacing 89c51 with eprom and ram applications of 89C51 89c51 c programming examples microcontroller 89c51 pin diagram FEATURES OF microcontroller 89C51
    Text: INTEGRATED CIRCUITS 89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash with 256 RAM Product specification 1999 Oct 27 Replaces Datasheets 89C51 of 1999 Apr 01 and 89C52/89C54/89C58 of 1999 Apr 01 Philips Semiconductors Philips Semiconductors


    Original     		89C51/89C52/89C54/89C58 80C51 4K/8K/16K/32K 89C51 89C52/89C54/89C58 89C51/89C52/89C54/89C58 89C51RC interfacing 89c51 with 4k ram 89c52 with external ram 40 pin PHILIPS 89C51 microcontroller 89c51 parallel programming 89C51 EXTERNAL RAM interfacing 89c51 with eprom and ram applications of 89C51 89c51 c programming examples microcontroller 89c51 pin diagram FEATURES OF microcontroller 89C51 PDF

    89c52 microcontroller

    Abstract: 89C52 89c52 pin diagram microcontroller 89c52 board programming 89C52 89C52 MICROCONTROLLER free P89C58UBA 89C52 MICROCONTROLLER DATASHEET 80C51 89C51RD
    Text: INTEGRATED CIRCUITS 89C52/54/58 89C51RA+/RB+/RC+/RD+ 8-bit CMOS microcontroller families with FLASH program memory Preliminary specification Philips Semiconductors 1997 Dec 01 Philips Semiconductors Preliminary specification 8-bit CMOS microcontroller families with


    Original     		89C52/54/58 89C51RA 80C51 33MHz 89C52/89C54/89C58 89C51ration 89c52 microcontroller 89C52 89c52 pin diagram microcontroller 89c52 board programming 89C52 89C52 MICROCONTROLLER free P89C58UBA 89C52 MICROCONTROLLER DATASHEET 89C51RD PDF

    microcontroller 89c52 pin diagram

    Abstract: 89c52 with external ram 89c52 pin diagram 89C52 MICROCONTROLLER free 89c52 microcontroller 89C52 89C54 TI PLCC44 Watchdog 89c51 c programming examples 89c58
    Text: INTEGRATED CIRCUITS 89C52/89C54/89C58 80C51 8-bit microcontroller family 8K/16K/32K Flash with 256 RAM Product specification Supersedes data of 1998 Oct 09 IC20 Data Handbook Philips Semiconductors 1999 Apr 01 Philips Semiconductors Product specification 80C51 8-bit microcontroller family


    Original     		89C52/89C54/89C58 80C51 8K/16K/32K 33MHz 89C52/89C54/89C58 microcontroller 89c52 pin diagram 89c52 with external ram 89c52 pin diagram 89C52 MICROCONTROLLER free 89c52 microcontroller 89C52 89C54 TI PLCC44 Watchdog 89c51 c programming examples 89c58 PDF

    comparison 89C51 89c52

    Abstract: P89C52BP microcontroller 89c51 pin diagram
    Text: INTEGRATED CIRCUITS 89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash Product data Supersedes data of 1999 Oct 27 IC28 Data Handbook Philips Semiconductors 2002 Jan 15 Philips Semiconductors Product data 80C51 8-bit microcontroller family


    Original     		89C51/89C52/89C54/89C58 80C51 4K/8K/16K/32K 89C51/89C52/89C54/89C58 89C51Rx2 89C66x comparison 89C51 89c52 P89C52BP microcontroller 89c51 pin diagram PDF

    led interfacing with 89C51

    Abstract: 89c52 microcontroller comparison 89C51 89c52 89c51 microcontroller 20 pin 89C51 programming 89C51 89C51 interfacing 89C52 MICROCONTROLLER DATASHEET free download 89c51 datasheet 89C51 APPLICATIONS
    Text: INTEGRATED CIRCUITS 89C51/89C52/89C54/89C58 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash Product data Supersedes data of 1999 Oct 27 IC28 Data Handbook Philips Semiconductors 2002 Jan 15 Philips Semiconductors Product data 80C51 8-bit microcontroller family


    Original     		89C51/89C52/89C54/89C58 80C51 4K/8K/16K/32K 80C51. 89C51/89C52/89C54/89C58 led interfacing with 89C51 89c52 microcontroller comparison 89C51 89c52 89c51 microcontroller 20 pin 89C51 programming 89C51 89C51 interfacing 89C52 MICROCONTROLLER DATASHEET free download 89c51 datasheet 89C51 APPLICATIONS PDF

    89C51RC

    Abstract: Features and uses of 89C51rc 40 pin 89C51 circuit programming 89C51 programming 89C52 80C51 89C51RD P89C51RC 40 pin PHILIPS 89C51 microcontroller free of intel 89c52 microcontroller
    Text: INTEGRATED CIRCUITS 89C51RC+/RD+ 80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512–1K RAM Product specification Replaces 89C52/54/58 89C51RA+/RB+/RC+/RD+ of 1997 Dec 01 see Notes 1 and 2 on page 2 Supersedes data of 1998 Oct 09 IC20 Data Handbook


    Original     		89C51RC 80C51 32K/64K 89C52/54/58 89C51RA 89C51RX+ 89C51RD+ Features and uses of 89C51rc 40 pin 89C51 circuit programming 89C51 programming 89C52 89C51RD P89C51RC 40 pin PHILIPS 89C51 microcontroller free of intel 89c52 microcontroller PDF

    AT89C51 INSTRUCTIONS SET

    Abstract: program for digital clock AT89C51 digital clock programming AT89C51 digital clock using AT89C51 digital clock using c AT89C51 89c51 c programming codes AT89C51 INSTRUCTION SET MICROCONTROLLER AT89C51 pin diagram at89c51 digital clock digital lock using AT89C51
    Text: Atmel 8051 Microcontroller Family - Product Selection Guide Device 89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 1K 1K 2K 4K 4K 8K 20K 8K 12K ON-CHIP MEMORY Flash Bytes EEPROM (Bytes) 2K SRAM (Bytes) 64 64 128 128 128 256 256 256 256 In-System Programmable (ISP)


    Original     		89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 AT89C51-20PI AT89C51 INSTRUCTIONS SET program for digital clock AT89C51 digital clock programming AT89C51 digital clock using AT89C51 digital clock using c AT89C51 89c51 c programming codes AT89C51 INSTRUCTION SET MICROCONTROLLER AT89C51 pin diagram at89c51 digital clock digital lock using AT89C51 PDF

    89C52

    Abstract: IS89C52 89c52 with external ram 89c52 pin diagram
    Text: ISSI ISSI IS89C52 IS89C52 CMOS SINGLE CHIP 8-BIT MICROCONTROLLER ® FEBRUARY 1998 FEATURES GENERAL DESCRIPTION • 89C52 based architecture • 8 Kbytes of on-chip Reprogrammable Flash Memory Endurance: 1,000 Write/Erase cycles • 256 x 8 RAM • Three 16-bit Timer/Counters


    Original     		IS89C52 89C52 16-bit 40-pin 44-pin MC013-0A IS89C52-12PL IS89C52-12W IS89C52 89c52 with external ram 89c52 pin diagram PDF

    89C51RC

    Abstract: 89C51RX
    Text: INTEGRATED CIRCUITS 89C51RC+/RD+ 80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512–1K RAM Preliminary specification 1998 Sep 02 Replaces 89C52/54/58 89C51RA+/RB+/RC+/RD+ of 1997 Dec 01 see Note 1 and 2 on page 2 IC20 Data Handbook Philips


    Original     		89C51RC 80C51 32K/64K 89C52/54/58 89C51RA 89C51RX+ 89C51RD+ 89C51RX PDF

    atmel 8051 microcontroller

    Abstract: 89s53 atmel 89c52 instruction set digital code lock system using 89c52 89C4051 stop watch atmel 89c51 MCS Series atmel 89c52 89C1051 Automatic Dam Control Using 89c51
    Text: Atmel 8051 Microcontroller Family - Product Selection Guide Device 89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 1K 1K 2K 4K 4K 8K 20K 8K 12K ON-CHIP MEMORY Flash Bytes EEPROM (Bytes) 2K SRAM (Bytes) 64 64 128 128 128 256 256 256 256 In-System Programmable (ISP)


    Original     		89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 AT89S53-16AA atmel 8051 microcontroller 89s53 atmel 89c52 instruction set digital code lock system using 89c52 89C4051 stop watch atmel 89c51 MCS Series atmel 89c52 89C1051 Automatic Dam Control Using 89c51 PDF

    at89c52 digital clock

    Abstract: digital lock using AT89C51 20 pin Atmel 89C4051 microcontroller 89c51 c programming codes digital code lock system using 89c52 89C1051 Atmel 89C51 microcontroller Datasheet atmel 89c52 digital clock program for 89c52 at 89c51 architecture
    Text: Atmel 8051 Microcontroller Family - Product Selection Guide Device 89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 1K 1K 2K 4K 4K 8K 20K 8K 12K ON-CHIP MEMORY Flash Bytes EEPROM (Bytes) 2K SRAM (Bytes) 64 64 128 128 128 256 256 256 256 In-System Programmable (ISP)


    Original     		89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 89C55-16PA at89c52 digital clock digital lock using AT89C51 20 pin Atmel 89C4051 microcontroller 89c51 c programming codes digital code lock system using 89c52 89C1051 Atmel 89C51 microcontroller Datasheet atmel 89c52 digital clock program for 89c52 at 89c51 architecture PDF

    89c51 atmel specification

    Abstract: atmel 89c52 instruction set atmel 8051 microcontroller digital code lock system using 89c52 20 pin Atmel 89C2051 microcontroller temperature controller program for 89c2051 89c51 c programming codes 89S53 instruction set atmel 89c52 digital clock with atmel 8051
    Text: Atmel 8051 Microcontroller Family - Product Selection Guide Device 89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 1K 1K 2K 4K 4K 8K 20K 8K 12K ON-CHIP MEMORY Flash Bytes EEPROM (Bytes) 2K SRAM (Bytes) 64 64 128 128 128 256 256 256 256 In-System Programmable (ISP)


    Original     		89C1051 89C1051U 89C2051 89C4051 89C51 89C52 89C55 89S8252 89S53 MS-001 89c51 atmel specification atmel 89c52 instruction set atmel 8051 microcontroller digital code lock system using 89c52 20 pin Atmel 89C2051 microcontroller temperature controller program for 89c2051 89c51 c programming codes 89S53 instruction set atmel 89c52 digital clock with atmel 8051 PDF

    89C51RC

    Abstract: 89c54 89c52 pin diagram P89C51RC IN 80C51 89C51RD P89C51RC 89C51 EXTERNAL RAM fah 06 pca816
    Text: INTEGRATED CIRCUITS 89C51RC+/RD+ 80C51 8-bit Flash microcontroller family 32K/64K ISP FLASH with 512–1K RAM Preliminary specification Replaces 89C52/54/58 89C51RA+/RB+/RC+/RD+ of 1997 Dec 01 see Notes 1 and 2 on page 2 Supersedes data of 1998 Sep 02 (see Note 3 on page 2)


    Original     		89C51RC 80C51 32K/64K 89C52/54/58 89C51RA 89C51RX+ 89C51RD+ 89c54 89c52 pin diagram P89C51RC IN 89C51RD P89C51RC 89C51 EXTERNAL RAM fah 06 pca816 PDF

    8051 using I2C BUS - interfacing ADC, DAC, memory

    Abstract: 8051 using I2C BUS interfacing ADC, DAC, memory dac interfacing with 8051 microcontroller uproggui 8051 Family with 3 uart microcontroller AN446 interfacing 8051 with eprom and ram 89c52 with external ram 80C552 interfacing Microcontroller Cross-Reference
    Text: Preface DocName DocPDF pdf_docs\FRONTMAT\PREFACE.PDF Preface Title Subject Author Keywords FAX-on-DEMAND System pdf_docs\SECT01\FAXONDEM.PDF FAX-on-DEMAND System Ordering Information pdf_docs\SECT01\ORDINFO1.PDF Ordering Information Quality pdf_docs\SECT01\QUALITY.PDF


    Original     		docs\SECT01\FAXONDEM docs\SECT01\ORDINFO1 docs\SECT01\QUALITY 80C51 docs\SECT01\SELECGUI 80C51 16-bit docs\SECT01\U16BFAM docs\SECT01\U8BITFAM 8051 using I2C BUS - interfacing ADC, DAC, memory 8051 using I2C BUS interfacing ADC, DAC, memory dac interfacing with 8051 microcontroller uproggui 8051 Family with 3 uart microcontroller AN446 interfacing 8051 with eprom and ram 89c52 with external ram 80C552 interfacing Microcontroller Cross-Reference PDF

    atmel 89c52

    Abstract: Microcontroller AT89C52 89C52 EXTERNAL RAM atmel 89c52 instruction set 89C52 89C52 MICROCONTROLLER DATASHEET free download he10 db9 microcontroller 89c52 board AT89C52 AT90SCC
    Text: Features • Includes: – Emulation Software and Hardware – Development Chip Similar to Production Device – Built-in Card Reader to Program Card Samples • Final Phase of Development can be Done using a Smart Card Sample – Flash-based Microcontroller-Production can Start Immediately


    Original     		90SCC RS232 EWA90) CWA90) EWA90 AT90SCC AT90SCC. atmel 89c52 Microcontroller AT89C52 89C52 EXTERNAL RAM atmel 89c52 instruction set 89C52 89C52 MICROCONTROLLER DATASHEET free download he10 db9 microcontroller 89c52 board AT89C52 PDF

    AT89X52

    Abstract: AT898252 atmel 8052 microcontroller AT89C2051 Assembler Users Guide at89x51 8052 intel assembly language code list 89c51 hex code atmel 8052 MCS-51 Macro Assembler Users Guide MCS-96 Macro Assembler Users guide
    Text: Integrated Development System for the 8051 PRODUCT OVERVIEW Preliminary Manual PK51 Product Overview V1.03 Copyright Information Information in this document is subject to change without notice and does not represent a commitment on the part of the manufacturer. The software described in


    Original     		C51TM MCS-51 AT89X52 AT898252 atmel 8052 microcontroller AT89C2051 Assembler Users Guide at89x51 8052 intel assembly language code list 89c51 hex code atmel 8052 MCS-51 Macro Assembler Users Guide MCS-96 Macro Assembler Users guide PDF

    89c8252

    Abstract: NEC 78F9026 28C64 EPROM programmer 82C55 NEC 89C52 MICROCONTROLLER DATASHEET free download atmel 89c52 INTEL END OF LIFE 80C196 Mitsubishi microcontroller bootloader pin detail for atmel 89c52 78f9026
    Text: EasyFLASHTM Solutions EasyFLASHTM Solving System Problems & Benefits of Using Flash PSDs We make it easy! Presentation #5 EasyFLASHTM April 2000 200004easyflashsolutions 1 Available Presentations • Main Presentations Recommended : – Presentation 1: Brief Introduction to Company and Products


    Original     		200004easyflashsolutions 1-877-WSI-PSDS 89c8252 NEC 78F9026 28C64 EPROM programmer 82C55 NEC 89C52 MICROCONTROLLER DATASHEET free download atmel 89c52 INTEL END OF LIFE 80C196 Mitsubishi microcontroller bootloader pin detail for atmel 89c52 78f9026 PDF

    89c51 c programming examples

    Abstract: 89c51 microcontroller master slave communication using 89c51 40 pin 89C51 circuit serial loader 89c51 20 pin 89C51 microcontroller 89c51 pin diagram 89C51 APPLICATIONS 89c51 serial port interfacing 89c51 with eprom and ram
    Text: INTEGRATED CIRCUITS 89C51 80C51 8-bit microcontroller 4K/128 MTP Flash, high speed 33 MHz Product specification Supersedes data of 1998 Oct 09 IC20 Data Handbook Philips Semiconductors 1999 Apr 01 Philips Semiconductors Product specification 80C51 8-bit microcontroller


    Original     		89C51 80C51 4K/128 89C51 89C51RC 80C51) 16-bit 89c51 c programming examples 89c51 microcontroller master slave communication using 89c51 40 pin 89C51 circuit serial loader 89c51 20 pin 89C51 microcontroller 89c51 pin diagram 89C51 APPLICATIONS 89c51 serial port interfacing 89c51 with eprom and ram PDF

    ph33m

    Abstract: 89C52 MICROCONTROLLER IC PH-33M P89C52UBPN philips microcontroller p89c
    Text: INTEGRATED CIRCUITS 89C52/89C54/89C58 80C51 8-bit microcontroller family 8K/16K/32K Flash with 256 RAM Preliminary specification Replaces datasheet 89C52/89C54 of 1997 Dec 03 IC20 Data Handbook Philips Semiconductors 1998 Oct 09 PHILIPS Philips Sem iconductors


    OCR Scan     		89C52/89C54/89C58 80C51 8K/16K/32K 89C52/89C54 89C52/89C54/89C58 52/89C54/89C58 89C51R /89C51RD+ ph33m 89C52 MICROCONTROLLER IC PH-33M P89C52UBPN philips microcontroller p89c PDF

    Micro-Pro 51

    Abstract: 8051 24cxx code 89c52 microcontroller 89C52 MICROCONTROLLER free programming 89C52 atmel 89c52 port pin 24cxx Microcontroller - AT89C51 plcc 44 pin details 25cxx 93cxx
    Text: t h e : p r o g r a m m e r w i t h a f u t u r e Programs on-chip code ROM of many 8051 Microcontroller derivatives Re-configurable hardware allows new devices to be added with a siffipie software lipdâtê FAST programming speeds due to optimised FPGA hardware for each target device


    OCR Scan     		250mA MP51-SYS AD-ICE-51 AD-PLCC44-A PLCC-44 DIL-40 SOIC-20 MP-01 Micro-Pro 51 8051 24cxx code 89c52 microcontroller 89C52 MICROCONTROLLER free programming 89C52 atmel 89c52 port pin 24cxx Microcontroller - AT89C51 plcc 44 pin details 25cxx 93cxx PDF

    FEATURES OF microcontroller 89C51

    Abstract: serial loader 89c51 microcontroller 89C51 89c51 serial port 89c51 PHILIPS all 89c51 microcontroller program data memory 89C51 89C51 EXTERNAL RAM Philips IC20 4 FEATURES OF microcontroller 89C51 OF PHILIPS
    Text: INTEGRATED CIRCUITS 89C51 80C51 8-bit microcontroller 4K/128 MTP Flash, high speed 33 MHz Product specification Supersedes data of 1998 Oct 09 IC20 Data Handbook Philips Semiconductors 1999 Apr 01 PHILIPS Philips Sem iconductors Product specification 80C51 8-bit microcontroller


    OCR Scan     		89C51 80C51 4K/128 89C51R 16-bit P89C51UBAA FEATURES OF microcontroller 89C51 serial loader 89c51 microcontroller 89C51 89c51 serial port 89c51 PHILIPS all 89c51 microcontroller program data memory 89C51 89C51 EXTERNAL RAM Philips IC20 4 FEATURES OF microcontroller 89C51 OF PHILIPS PDF