Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    MC68HC908Q Search Results

    MC68HC908Q Datasheets (126)

    Part ECAD Model Manufacturer Description Curated Type PDF
    MC68HC908QB4 Unknown To provide the most up-to-date information, the revision of our documents Original PDF
    MC68HC908QB8 Freescale Semiconductor Microcontrollers Original PDF
    MC68HC908QB8 Unknown To provide the most up-to-date information, the revision of our documents Original PDF
    MC68HC908QC16 Freescale Semiconductor Microcontrollers Original PDF
    MC68HC908QC4 Freescale Semiconductor Microcontrollers Original PDF
    MC68HC908QC8 Freescale Semiconductor Microcontrollers Original PDF
    MC68HC908QF4 Freescale Semiconductor MC68HC908QF4 Technical Data Sheet Original PDF
    MC68HC908QL2 Motorola Microcontrollers Original PDF
    MC68HC908QL3 Motorola Microcontrollers Original PDF
    MC68HC908QL4 Motorola Microcontrollers Original PDF
    MC68HC908QT1 Motorola Data Sheet Original PDF
    MC68HC908QT1 Motorola Microcontrollers Original PDF
    MC68HC908QT1A Freescale Semiconductor Microcontrollers Original PDF
    MC68HC908QT1CDW Freescale Semiconductor Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 1.5KB FLASH 8SOIC Original PDF
    MC68HC908QT1CDW Motorola High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 1536 bytes Original PDF
    MC68HC908QT1CFQ Motorola HCMOS Microcontroller Unit Original PDF
    MC68HC908QT1CP Freescale Semiconductor Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 1.5KB FLASH 8DIP Original PDF
    MC68HC908QT1CP Motorola High-performance M68HC08 family of 8-bit microcontroller units (MCUs), (CISC) with a von neumann architecture, FLASH memory 1536 bytes Original PDF
    MC68HC908QT1CPE Freescale Semiconductor Embedded - Microcontrollers, Integrated Circuits (ICs), IC MCU 8BIT 1.5KB FLASH 8DIP Original PDF
    MC68HC908QT1MDW Motorola HCMOS Microcontroller Unit Original PDF
    ...
    SF Impression Pixel

    MC68HC908Q Price and Stock

    Flip Electronics MC68HC908QT4MPE

    MICROCONTROLLER, 8-BIT, FLASH, 8
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MC68HC908QT4MPE Bulk 31,927 150
    • 1 -
    • 10 -
    • 100 -
    • 1000 $4.06673
    • 10000 $4.06673
    		Buy Now

    NXP Semiconductors MC68HC908QT1VPE

    IC MCU 8BIT 1.5KB FLASH 8DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MC68HC908QT1VPE Tube 3,346 1
    • 1 $4.21
    • 10 $3.291
    • 100 $2.6962
    • 1000 $2.22613
    • 10000 $2.11483
    		Buy Now

    NXP Semiconductors MC68HC908QY4CDTE

    IC MCU 8BIT 4KB FLASH 16TSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MC68HC908QY4CDTE Tube 2,441 1
    • 1 $8.28
    • 10 $6.502
    • 100 $5.38313
    • 1000 $5.38313
    • 10000 $4.69515
    		Buy Now
    Avnet Americas MC68HC908QY4CDTE Tube 13 Weeks 2,880
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $4.04231
    		Buy Now
    Mouser Electronics MC68HC908QY4CDTE
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Arrow Electronics MC68HC908QY4CDTE 1,143 13 Weeks 1
    • 1 $6.476
    • 10 $5.826
    • 100 $4.669
    • 1000 $4.669
    • 10000 $4.369
    		Buy Now
    Flip Electronics MC68HC908QY4CDTE 4,128
    • 1 $2.99
    • 10 $2.99
    • 100 $2.99
    • 1000 $2.99
    • 10000 $2.99
    		Get Quote
    New Advantage Corporation MC68HC908QY4CDTE 192 1
    • 1 -
    • 10 -
    • 100 $5.2
    • 1000 $4.85
    • 10000 $4.85
    		Buy Now

    NXP Semiconductors MC68HC908QY1CDTE

    IC MCU 8BIT 1.5KB FLASH 16TSSOP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MC68HC908QY1CDTE Tube 1,788 1
    • 1 $6.06
    • 10 $4.735
    • 100 $3.87917
    • 1000 $3.79757
    • 10000 $3.04264
    		Buy Now
    Avnet Americas MC68HC908QY1CDTE Tube 13 Weeks 2,880
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 $2.65896
    		Buy Now
    Mouser Electronics MC68HC908QY1CDTE
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote
    Flip Electronics MC68HC908QY1CDTE 1,849
    • 1 -
    • 10 -
    • 100 -
    • 1000 -
    • 10000 -
    		Get Quote

    Rochester Electronics LLC MC68HC908QY2CP

    IC MCU 8BIT 1.5KB FLASH 16DIP
    Distributors Part Package Stock Lead Time Min Order Qty Price Buy
    DigiKey MC68HC908QY2CP Bulk 1,402 167
    • 1 -
    • 10 -
    • 100 -
    • 1000 $1.8
    • 10000 $1.8
    		Buy Now
    Find more MC68HC908Q price and stock on Findchips.com

    MC68HC908Q Datasheets Context Search

    Catalog Datasheet MFG & Type PDF Document Tags

    mc68h908

    Abstract: MC68HC908QT2A CPU08 M68HC08 MC68HC908QT1A MC68HC908QT4A MC68HC908QY1A MC68HC908QY2A MC68HC908QY4A MC68HC08QY
    Text: MC68HC908QY4A MC68HC908QT4A MC68HC908QY2A MC68HC908QT2A MC68HC908QY1A MC68HC908QT1A Data Sheet M68HC08 Microcontrollers MC68HC908QY4A Rev. 2 04/2007 freescale.com MC68HC908QY4A MC68HC908QY2A MC68HC908QY1A MC68HC908QT4A MC68HC908QT2A MC68HC908QT1A Data Sheet


    Original     		PDF MC68HC908QY4A MC68HC908QT4A MC68HC908QY2A MC68HC908QT2A MC68HC908QY1A MC68HC908QT1A M68HC08 mc68h908 MC68HC908QT2A CPU08 M68HC08 MC68HC908QT1A MC68HC908QT4A MC68HC908QY1A MC68HC908QY2A MC68HC908QY4A MC68HC08QY

    Untitled

    Abstract: No abstract text available
    Text: Addendum to MC68HC908QC16, rev. 5 This addendum introduces a change to this data sheet. Chapter 18 Development Support, Section 18.3.2 Security A security feature discourages unauthorized reading of FLASH locations while in monitor mode. The host can bypass the security feature at monitor mode entry by sending eight security bytes that match the


    Original     		PDF MC68HC908QC16,

    freescale superflash

    Abstract: No abstract text available
    Text: MC68HC908QL4 MC68HC908QL3 MC68HC908QL2 Data Sheet M68HC08 Microcontrollers MC68HC908QL4 Rev. 6 09/2005 freescale.com MC68HC908QL4 MC68HC908QL3 MC68HC908QL2 Data Sheet To provide the most up-to-date information, the revision of our documents on the World Wide Web will be


    Original     		PDF MC68HC908QL4 MC68HC908QL3 MC68HC908QL2 M68HC08 freescale superflash

    68HC908QY2

    Abstract: 3L69J MC68HC908QY2 MON08
    Text: Mask Set Errata MSE908QY2_3L69J 12/2002 Mask Set Errata for MC68HC908QY2, Mask 3L69J Introduction This mask set errata applies to this MC68HC908QY2 MCU mask set: • 3L69J MCU Device Mask Set Identification The mask set is identified by a 5-character code consisting of a version


    Original     		PDF MSE908QY2 3L69J MC68HC908QY2, MC68HC908QY2 3L69J. 68HC908QY2 3L69J MON08

    68HC908QY4

    Abstract: 3L69J MC68HC908QY4 MON08 MC68HC908Q
    Text: Mask Set Errata MSE908QY4_3L69J 12/2002 Mask Set Errata for MC68HC908QY4, Mask 3L69J Introduction This mask set errata applies to this MC68HC908QY4 MCU mask set: • 3L69J MCU Device Mask Set Identification The mask set is identified by a 5-character code consisting of a version


    Original     		PDF MSE908QY4 3L69J MC68HC908QY4, MC68HC908QY4 3L69J. 68HC908QY4 3L69J MON08 MC68HC908Q

    freescale superflash

    Abstract: No abstract text available
    Text: MC68HC908QB8 MC68HC908QB4 MC68HC908QY8 Data Sheet M68HC08 Microcontrollers MC68HC908QB8 Rev. 1 09/2005 freescale.com MC68HC908QB8 MC68HC908QB4 MC68HC908QY8 Data Sheet To provide the most up-to-date information, the revision of our documents on the World Wide Web will be


    Original     		PDF MC68HC908QB8 MC68HC908QB4 MC68HC908QY8 M68HC08 freescale superflash

    MC68HC908QT1CDW

    Abstract: AN2310 HC08 M68HC08 MC68HC908QT1 MC68HC908QT4 68HC05 AN2305
    Text: 8-bit Microcontrollers MC68HC908QT1 Target Applications > Discrete replacement > Appliances > Control systems > Home and industrial security systems Features > Fluorescent light ballasts > Electromechanical replacement Overview Freescale Semiconductor’s MC68HC908QT1


    Original     		PDF MC68HC908QT1 M68CYCLONEPRO AN2310 MC68HC908QT/QY AN2322 M68DEMO908QT4 AN2305 16-bit MC68HC908QT1VDW MC68HC908QT1CDW AN2310 HC08 M68HC08 MC68HC908QT1 MC68HC908QT4 68HC05 AN2305

    programmable keyboard

    Abstract: Center tap antenna 13.56
    Text: MC68HC908QF4 MC68HC908QF3 MC68HC908QF2 MC68HC908QF1 Data Sheet M68HC08 Microcontrollers MC68HC908QF4/D Rev. 0 10/2003 MOTOROLA.COM/SEMICONDUCTORS MC68HC908QF4 MC68HC908QF3 MC68HC908QF2 MC68HC908QF1 Data Sheet To provide the most up-to-date information, the revision of our documents on the


    Original     		PDF MC68HC908QF4 MC68HC908QF3 MC68HC908QF2 MC68HC908QF1 M68HC08 MC68HC908QF4/D programmable keyboard Center tap antenna 13.56

    MC68HC908QT2CDW

    Abstract: CWX-H08-SE MC68HC908QT2CFQ MC68HC908QT2 AN2310 MC68HC908QT2CP MC68HC908QT2MDW AN2305 HC08 M68HC08
    Text: 8-bit Microcontrollers MC68HC908QT2 Target Applications > Discrete replacement > Appliances > Control systems > Home and industrial security systems Features > Fluorescent light ballasts > Electromechanical replacement Benefits High-Performance 68HC08 CPU Core


    Original     		PDF MC68HC908QT2 68HC08 16-bit 68HC05 68HC908QT2FS MC68HC908QT2CDW CWX-H08-SE MC68HC908QT2CFQ MC68HC908QT2 AN2310 MC68HC908QT2CP MC68HC908QT2MDW AN2305 HC08 M68HC08

    68HC05

    Abstract: AN2305 AN2310 AN2312 HC08 M68HC08 MC68HC908QT4 MC68HC908QY1
    Text: 8-bit Microcontrollers MC68HC908QY1 Target Applications > Discrete replacement > Appliances > Control systems > Home and industrial security systems Features > Fluorescent light ballasts > Electromechanical replacement Benefits High-Performance 68HC08 CPU Core


    Original     		PDF MC68HC908QY1 68HC08 16-bit 68HC05 68HC908QY1FS 16-Lead 68HC05 AN2305 AN2310 AN2312 HC08 M68HC08 MC68HC908QT4 MC68HC908QY1

    mc908qy4 programming

    Abstract: mc908qy2 mc908qy4 M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1 MC68HC908QY2 MC68HC908QY4
    Text: MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 Data Sheet M68HC08 Microcontrollers MC68HC908QY4/D Rev. 4 11/2004 freescale.com MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 Data Sheet To provide the most up-to-date information, the revision of our documents on the World Wide Web will be


    Original     		PDF MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 M68HC08 MC68HC908QY4/D mc908qy4 programming mc908qy2 mc908qy4 M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1 MC68HC908QY2 MC68HC908QY4

    AN2503SW

    Abstract: zener pc 838 transceiver AN2503SW.zip pc controlled robot main project circuit diagram M68HC08 MC68HC MC68HC908QY4 MON08 CPU08 getchar hcs12
    Text: Freescale Semiconductor, Inc. Rev. 1, 3/2004 Freescale Semiconductor, Inc. Slave LIN Driver for the MC68HC908QT/QY Family By Luis Reynoso SPS Latin America Guadalajara, Jalisco, México Introduction This application note describes a slave LIN local interconnect network driver


    Original     		PDF MC68HC908QT/QY MC68HC 08QT/QY M68HC08 AN2503/D AN2503SW zener pc 838 transceiver AN2503SW.zip pc controlled robot main project circuit diagram MC68HC908QY4 MON08 CPU08 getchar hcs12

    CPU08

    Abstract: M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1 MC68HC908QY2 MC68HC908QY4
    Text: Freescale Semiconductor, Inc. Data Sheet Summary MC68HC908QY4SM/D Rev. 0.1, 12/2002 Freescale Semiconductor, Inc. MC68HC908QY4, MC68HC908QT4, MC68HC908QY2, MC68HC908QT2, MC68HC908QY1, MC68HC908QT1 Introduction This document provides an overview of the MC68HC908QY4,


    Original     		PDF MC68HC908QY4SM/D MC68HC908QY4, MC68HC908QT4, MC68HC908QY2, MC68HC908QT2, MC68HC908QY1, MC68HC908QT1 CPU08 M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1 MC68HC908QY2 MC68HC908QY4

    DEMO908QC16

    Abstract: DEMO908QC16_UG 14 pin 2x7, 2mm header HDR HEADER 2X7 2.0MM 742C083103J USB-MON08 HDR RA 2MM 9P SMT MC68HC908QC16 lin bus pinout DB9 ssm-120-l-dv-k
    Text: D O C - 0 3 6 9 - 0 1 0 R E V C DEMO908QC16 Demonstration Board for Freescale MC68HC908QC16 Axiom Manufacturing • 2813 Industrial Lane • Garland, TX 75041 Email: Sales@axman.com Web: http://www.axman.com D E M O 9 0 8 Q C 1 6 J U N E 2 0 , 2 0 0 5 CONTENTS


    Original     		PDF DEMO908QC16 MC68HC908QC16 MON08 DEMO908QC16, SSM-120-L-DV-K-BE-A On0406PPMS AXM-0369 CBL-LIN001 DOC-0369-010 DEMO908QC16 DEMO908QC16_UG 14 pin 2x7, 2mm header HDR HEADER 2X7 2.0MM 742C083103J USB-MON08 HDR RA 2MM 9P SMT MC68HC908QC16 lin bus pinout DB9 ssm-120-l-dv-k

    schematic diagram receiver data circuit satellite

    Abstract: DISEQC SWITCH schematic diagram receiver satellite satellite decoder circuit diagram diseqc how to make satellite decoder circuit diseqc master lnb ku circuit diagram of satellite digital set top box twin lnb
    Text: Freescale Semiconductor, Inc. Application Note AN2677/D 3/2004 Freescale Semiconductor, Inc. Digital Satellite Equipment Control DiSEqC using MC68HC908QT/QY By Stanislav Arendarik Motorola Czech System Application Laboratory Roznov pod Radhostem, Czech Republic


    Original     		PDF AN2677/D MC68HC908QT/QY MC68HC908QT/QY schematic diagram receiver data circuit satellite DISEQC SWITCH schematic diagram receiver satellite satellite decoder circuit diagram diseqc how to make satellite decoder circuit diseqc master lnb ku circuit diagram of satellite digital set top box twin lnb

    AN2623

    Abstract: MC68HC908QY4 LM56 LM66 MAX6610 MAX6611 MC33399 LEDdisplay Temperature sensor in automobile HVAC system mc68hc908QY4 programmer circuit
    Text: Freescale Semiconductor, Inc. Application Note AN2623/D 12/2003 Freescale Semiconductor, Inc. LIN Temperature Sensor Using the MC68HC908QT/QY MCU By Jiri Kuhn Motorola Czech System Laboratories Roznov p.R., Czech Republic Introduction Many applications in the automobile industry and other areas require


    Original     		PDF AN2623/D AN2623 MC68HC908QY4 LM56 LM66 MAX6610 MAX6611 MC33399 LEDdisplay Temperature sensor in automobile HVAC system mc68hc908QY4 programmer circuit

    DRM045

    Abstract: schematics of DVD player circuit board dvd player schematic CKN9009-ND mp3 player SCHEMATIC Q12N3904 2N3904 ND dvd player microcontroller Q12N3904 Datasheet MC68HC908QT2
    Text: Freescale Semiconductor, Inc. Freescale Semiconductor, Inc. Using the ASB520 MC68HC908QT2 Based Infrared Remote Control Reference PC Board Designer Reference Manual M68HC08 Microcontrollers DRM045/D Rev. 0 9/2003 MOTOROLA.COM/SEMICONDUCTORS For More Information On This Product,


    Original     		PDF ASB520 MC68HC908QT2 M68HC08 DRM045/D ASB520 MC68HC908QT2 DRM045 schematics of DVD player circuit board dvd player schematic CKN9009-ND mp3 player SCHEMATIC Q12N3904 2N3904 ND dvd player microcontroller Q12N3904 Datasheet

    CPU08

    Abstract: HC05 M68HC05 M68HC08 MC68HC908QL2 MC68HC908QL3 MC68HC908QL4 freescale superflash
    Text: MC68HC908QL4 Data Sheet M68HC08 Microcontrollers MC68HC908QL4 Rev. 8 04/2010 freescale.com MC68HC908QL4 Data Sheet To provide the most up-to-date information, the revision of our documents on the World Wide Web will be the most current. Your printed copy may be an earlier revision. To verify you have the latest information


    Original     		PDF MC68HC908QL4 M68HC08 MC68HC908QL4 CPU08 HC05 M68HC05 M68HC08 MC68HC908QL2 MC68HC908QL3 freescale superflash

    MC68HC908qy4 programmer

    Abstract: MC68HC908QY4CDW MC68HC908QY4CP MC68HC908QY4 MC68HC908QY4MDW 68HC05 AN2305 AN2310 AN2317 HC08
    Text: 8-bit Microcontrollers MC68HC908QY4 Target Applications > Discrete replacement > Appliances Features > Fluorescent light ballasts > Electromechanical replacement > Control systems > Home and industrial security systems Overview Freescale Semiconductor’s MC68HC908QY4


    Original     		PDF MC68HC908QY4 CWX-H08-SE M68DEMO908QT4 16-Lead 68HC908QY4FS MC68HC908qy4 programmer MC68HC908QY4CDW MC68HC908QY4CP MC68HC908QY4 MC68HC908QY4MDW 68HC05 AN2305 AN2310 AN2317 HC08

    C908QY2

    Abstract: MC68H MC68HC08 MC68HC908QY4 pc keyboard CIRCUIT wire diagram PK-HC08QY4
    Text: MC68HC908QY4 Easy Reference Mnemonic Description Operation Flags PTB7 2 15 PTB0 ADC Add with Carry A ← A + (M) + (C) V, H, N, Z, C PTB6 3 14 PTB1 ADD Add without Carry A ← (A) + (M) V, H, N, Z, C PTA5/OSC1/AD3/KBI5 4 13 PTA0/AD0/TCH0/KBI0 AIS Add Immediate Value to Stack Pointer


    Original     		PDF MC68HC908QY4 PK-HC08 C908QY2 MC68H MC68HC08 pc keyboard CIRCUIT wire diagram PK-HC08QY4

    MC68HC908QY4

    Abstract: M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1 MC68HC908QY2
    Text: MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 Data Sheet M68HC08 Microcontrollers MC68HC908QY4/D 9/2002 WWW.MOTOROLA.COM/SEMICONDUCTORS MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 Data Sheet


    Original     		PDF MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 M68HC08 MC68HC908QY4/D MC68HC908QY4 M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1 MC68HC908QY2

    mc908qy1

    Abstract: mc908qy4 programming mc908qy4 Equivalent MC908Q CPU08 M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1
    Text: MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 Data Sheet M68HC08 Microcontrollers MC68HC908QY4/D Rev. 5 07/2005 freescale.com MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 Data Sheet To provide the most up-to-date information, the revision of our documents on the World Wide Web will be


    Original     		PDF MC68HC908QY4 MC68HC908QT4 MC68HC908QY2 MC68HC908QT2 MC68HC908QY1 MC68HC908QT1 M68HC08 MC68HC908QY4/D mc908qy1 mc908qy4 programming mc908qy4 Equivalent MC908Q CPU08 M68HC08 MC68HC908QT1 MC68HC908QT2 MC68HC908QT4 MC68HC908QY1

    MC68HC908QT4

    Abstract: 001B 00FF HC08 EE69
    Text: Freescale Semiconductor, Inc. Application Note AN2310/D 8/2002 Freescale Semiconductor, Inc. MC68HC908QT4 Low Power Application By: Donnie Garcia 8/16-Bit Products Division Applications Engineering Overview This application note describes a low-power design that uses an


    Original     		PDF AN2310/D MC68HC908QT4 8/16-Bit 001B 00FF HC08 EE69

    list of sensors used in bmw car

    Abstract: circuit diagram of keypad door lock system hex keypad KEYPAD SWITCH IC 7805 pin diagram keypad diode matrix matrix encoded keypad MC68HC908QT CPU08 LT1121
    Text: Freescale Semiconductor, Inc. Application Note AN2600/D 12/2003 Freescale Semiconductor, Inc. A Simple Keypad Using LIN with the MC68HC908QT/QY MCU By: David Svrcek and Zdenek Kaspar Motorola Czech System Laboratories Roznov p.R., Czech Republic General Description


    Original     		PDF AN2600/D MC68HC908QY/QT list of sensors used in bmw car circuit diagram of keypad door lock system hex keypad KEYPAD SWITCH IC 7805 pin diagram keypad diode matrix matrix encoded keypad MC68HC908QT CPU08 LT1121