6ES72141BD230XB8

通常CMOS門電路都有反相器作為輸出緩沖電路，如上圖所示，如果將兩個(gè)CMOS與非門G1和G2的輸出端連接在一起，并設(shè)G1的輸出處于高電平，TN1截止，TP1導(dǎo)通；而G2的輸出處于低電平，TN2導(dǎo)通，TP2截止，這樣從G1的TP1端到G2的TN2端將形成一低阻通路，從而產(chǎn)生很大的電流，很有可能導(dǎo)致器件的損毀。

那么，我們就需要尋找一種新的方式實(shí)現(xiàn)線與邏輯，即OD門。所謂漏極開路門（OD門）是指CMOS門電路的輸出只有NMOS管，并且它的漏極是開路的。使用OD門時(shí)必須在漏極和電源VDD之間外接一個(gè)上拉電阻（pull-up resister）RP。如圖2所示為兩個(gè)OD與非門實(shí)現(xiàn)線與，將兩個(gè)門電路輸出端接在一起，通過上拉電阻接電源。

6ES72141BD230XB8

1260-54 1.3GHz Multiplexer Realtime Logic! RT-GPIO RTL-SCBECL 
Sanritz Automation SVA009 SVA009 SVA011-26 C 
SVA011-26 D SVA011-30 F SVA011-30Z E SVA011-30Z F 
SVA011-30Z F SVA011-30Z F with SC8506-1E  Satb 4K Switch Matrix Board 1008700- 
4K Switch Matrix Power Supply  DHX Cards 1005460-100 DHX Transition Board 1009835 B Digital Voice Expansion 100-3534- 
DSS Power Card 1005255-101 DTMF/MF 1009160-101c E1 Trunk Card 1005400-100 Group Link Expansion  
Group Link Expansion 01-100- Line Cards 1009015-100 Parallel Serial 1008710-100 T1 Trunk Card 1005460-106 
SBE VCOM-33 VCOM-54 SBS 
422-202 CPro3 CPro3/32 CPro3/128 PMC-3101 PMC-3101BP 
PMC-SCSI PMC-Sual100BT Power4e Power 4e V5A 
V5B VME-6200 VME6200 SBS Bit 3 82902250 82902240 
85154558 85154538 SST 5136-DNP-VME-4  5136-DN-VME 
Synergy V440 VGM2 Systech 
HPS-6245-25 Tadpole TP-34v TEWS Datentechnik 
TIP810-10 TIP811-10 TIP903-10 TPMC670-11 
TPMC815-21 Themis SPARC 10MP 10MP-65-50-1S SPARC 20MP 20MP-128-125-1HE 
UltraSparc USP-1 USP1-256-200 TI TMS320C8X Trenton 
CPBI/600E Univoice UV-4 Unspecified 
00724-95-00342-007 00724-95-03199-003 8136-SVME20 CLB CIO-1A 
FDC-3 ICU-1A ICU-1B PIA-3A 
PME 68-41 SBS-6H256 SBS-6V256 TVME712 

MPL-A320P-HK74AA
MPL-A320P-H-X229
MPL-A320P-H-X260
MPL-A320P-MJ72AA
MPL-A320P-MJ74AA
MPL-A320P-MK72AA
MPL-A320P-MK74AA
MPL-A320P-SJ72AA
MPL-A320P-SJ74AA
MPL-A320P-SK72AA
MPL-A320P-SK74AA
MPL-A330F-M-X211
MPL-A330F-M-X212
MPL-A330P-HJ72AA
MPL-A330P-HJ74AA
MPL-A330P-HK72AA
MPL-A330P-HK74AA
MPL-A330P-MJ72AA
MPL-A330P-MJ74AA
MPL-A330P-MK72AA
MPL-A330P-MK74AA
MPL-A330P-SJ72AA
MPL-A330P-SJ74AA
MPL-A330P-SK72AA
MPL-A330P-SK74AA
MPL-A420F-M-X213
MPL-A420F-M-X214
MPL-A420P-HJ72AA
MPL-A420P-HJ74AA
MPL-A420P-HK72AA
MPL-A420P-HK74AA
MPL-A420P-H-X230
MPL-A420P-MJ72AA
MPL-A420P-MJ74AA
MPL-A420P-MK24AA
MPL-A420P-MK72AA
MPL-A420P-MK74AA
MPL-A420P-SJ72AA
MPL-A420P-SJ74AA
MPL-A420P-SK72AA
MPL-A430H-HJ72AA
MPL-A430H-HJ74AA
MPL-A430H-HK72AA
MPL-A430H-HK74AA
MPL-A430H-MJ72AA
MPL-A430H-MJ74AA
MPL-A430H-MK72AA
MPL-A430H-MK74AA
MPL-A430H-SJ72AA
MPL-A430H-SJ74AA
MPL-A430H-SK72AA

Video 37410 37410-105 Video 79750 79750-103 VMEXBJ1S Various 
Various VIPERdsp Viper-48 5420/cPCI VME Specialists 
SRML 0320-0041 Vmetro MIDAS 220YR MIDAS RX M220SR-128D2  
VMFC2100 VMFC-2100 VMIC VMIPMC-5579 VMIPMC5579 VMIVME HSD 
VMIVME VME Repeater 2000 VMIVME1110 VMIVME-1110 VMIVME1128 VMIVME-1128  VMIVME1160A 
VMIVME1180 VMIVME-1180 VMIVME2120 VMIVME-2120  VMIVME2128 VMIVME-2128 VMIVME2131 VMIVME-2131 
VMIVME2210 VMIVME2536 VMIVME-2536 VMIVME3100 VMIVME-3100 VMIVME3113A VMIVME-3113A 
VMIVME3210 VMIVME-3210 VMIVME4101 VMIVME-4101 VMIVME4132 VMIVME-4132 VMIVME4512 VMIVME-4512 
VMIVME4514A VMIVME-4514A VMIVME4800 VMIVME-4800 VMIVME6015 VMIVME-6015 VMIVME7432 VMIVME-7432 
VMIVME7452 VMIVME-7452 VMIVME7455 VMIVME-7455 VMIVME7487A VMIVME-7487A VMIVME7489 VMIVME-7489 
VMIVME7697 VMIVME-7697 VMIVME7740 VMIVME-7740 WSI WS600C 
Xycom MCT-6020 MCT6020 SRM XVME-010 XVME-010 
XVME-212 XVME-212/DIN XVME-220 XVME-220/DOUT 
XVME-228/3 XVME-290 XVME-956 Ziatech 
ZT5510-S353D Zib Pattern Memory