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SN75LBC968 Datasheet 9-Channel Bus Transceiver

Manufacturer: Texas Instruments

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General Description

The SN75LBC968 is a nine-channel transceiver 4DE/RE 11 VCC1 12 GND 13 GND 14 GND 15 GND 16 GND 17 VCC 18 5A 19 5DE/RE 20 6A 21 6DE/RE 22 7A 23 7DE/RE 24 8A 25 8DE/RE 26 9A 27 9DE/RE 28 46 5B 45 VCC 44 GND 43 GND 42 GND 41 GND 40 GND 39 VCC 38 NC 37 4B 36 NC 35 3B 34 NC 33 2B 32 NC 31 1B 30 NC 29 9B with active termination that drives and receives the signals from the single-ended, parallel data NC − No internal connection buses such as the Small Computer-Systems Interface (SCSI) bus.

The

Overview

SN75LBC968 9ĆCHANNEL BUS TRANSCEIVER WITH ACTIVE TERMINATION SLLS179E − APRIL 1994 − REVISED AUGUST 2005 D Nine Single-Ended SCSI Transceiver Channels With Active Termination DL PACKAGE (TOP VIEW) D Programmable Drivers Provide Active Negation (Totem Pole) or Wired-OR (Open Drain) Outputs D 24-mA Current-Mode Active Termination With Common Nine-Channel Bus Enable D Low Output Capacitance Presented to SCSI GND 1 TE 2 GND 3 1A 4 1DE/RE 5 2A 6 56 8B 55 GND 54 CE 53 NC 52 NC 51 NC Bus, 13.5 pF Typ 2DE/RE 7 50 7B D 3.3 V Compatible Logic Inputs Provide 3A 8 49 NC Bridge from 3 V Controllers to 5 V SCSI 3DE/RE 9 48 6B Bus 4A 10 47 NC D Designed to Operate at 10-Million Data Transfers Per Second (Fast-SCSI) D Controlled Driver Rise and Fall Times 5 ns Min D High-Receiver Input-Voltage Hysteresis 500 mV Typ D Receiver Input-Noise Pulse Filter 5 ns Typ D Each Driver and Receiver Meets ANSI X3.

Key Features

  • of the line drivers, receivers, and active-termination circuits provide the optimum signal-to-noise ratios for reliable data transmission. Integration of the termination and transceivers in the LinBiCMOS process provides the necessary analog-circuit performance, has low quiescent power, and reduces the capacitance presented to the bus over separate termination and I/O circuits. The transceivers of the SN75LBC968 can be enabled to function as totem-pole or open-drain outputs. The open-drain.

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