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SN74CBT6800C

具有 –2V 下沖保護的 5V、1:1 (SPST)、10 通道通用 FET 總線開關; ? Member of the Texas Instruments Widebus? Family\n? Undershoot Protection for Off-Isolation on A and B Ports Up to .2 V\n? B-Port Outputs Are Precharged by Bias Voltage (BIASV) to Minimize Signal Distortion During Live Insertion and Hot-Plugging\n? Supports PCI Hot Plug\n? Bidirectional Data Flow, With Near-Zero Propagation Delay\n? Low ON-State Resistance (ron) Characteristics (ron = 3 Typical)\n? Low Input/Output Capacitance Minimizes Loading and Signal Distortion (Cio(OFF) = 5.5 pF Typical)\n? Data and Control Inputs Provide Undershoot Clamp Diodes\n? Low Power Consumption (ICC = 3 μA Max)\n? VCC Operating Range From 4 V to 5.5 V\n? Data I/Os Support 0 to 5-V Signaling Levels (0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, 5-V)\n? Control Inputs Can be Driven by TTL or 5-V/3.3-V CMOS Outputs\n? Ioff Supports Partial-Power-Down Mode Operation\n? Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II\n? ESD Performance Tested Per JESD 22 \n? 2000-V Human-Body Model (A114-B, Class II)\n? 1000-V Charged-Device Model (C101)\n \n? Supports Both Digital and Analog Applications: PCI Interface, Memory Interleaving, Bus Isolation, Low-Distortion Signal Gating\n Widebus is a trademark of Texas Instruments.;

The SN74CBT6800C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT6800C provides protection for undershoot up to ?2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state. The device also precharges the B port to a user-selectable bias voltage (BIASV) to minimize live-insertion noise.\n\n The SN74CBT6800C is a 10-bit bus switch with a single output-enable (ON\\) input. When ON\\ is low, the 10-bit bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When ON\\ is high, the 10-bit bus switch is OFF, and a high-impedance state exists between the A and B ports. The B port is precharged to BIASV through the equivalent of a 10-k resistor when ON\\ is high, or if the device is powered down (VCC = 0 V).\n\n During insertion (or removal) of a card into (or from) an active bus, the card?s output voltage may be close to GND. When the connector pins make contact, the card?s parasitic capacitance tries to force the bus signal to GND, creating a possible glitch on the active bus. This glitching effect can be reduced by using a bus switch with precharged bias voltage (BIASV) of the bus switch equal to the input threshold voltage level of the receivers on the active bus. This method will ensure that any glitch produced by insertion (or removal) of the card will not cross the input threshold region of the receivers on the active bus, minimizing the effects of live-insertion noise.\n\n This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off.\n\n To ensure the high-impedance state during power up or power down, ON\\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

SN74CBT6800C

10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS WITCH WITH-2-V UNDERSHOOT PROTECTION

SN74CBT6800CDB

10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit

SN74CBT6800CDBQR

10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit

SN74CBT6800CDBR

10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit

SN74CBT6800CDGVR

絲?。?a target="_blank" title="Marking" href="/ct6800c/marking.html">CT6800C；Package：TVSOP；10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit

SN74CBT6800CDGVR.B

絲?。?a target="_blank" title="Marking" href="/ct6800c/marking.html">CT6800C；Package：TVSOP；10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit

SN74CBT6800CDGVRE4

絲?。?a target="_blank" title="Marking" href="/ct6800c/marking.html">CT6800C；Package：TVSOP；10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit

SN74CBT6800CDW

10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit

SN74CBT6800CDWR

10-BIT FET BUS SWITCH WITH PRECHARGED OUTPUTS 5-V BUS SWITCH WITH -2-V UNDERSHOOT PROTECTION

MemberoftheTexasInstruments Widebus?Family UndershootProtectionforOff-Isolationon AandBPortsUpto?2V B-PortOutputsArePrechargedbyBias Voltage(BIASV)toMinimizeSignal DistortionDuringLiveInsertionand Hot-Plugging SupportsPCIHotPlug BidirectionalDataFlow,Wit