SN75LBC968DL ,9-Channel Bus Transceiver With Active Terminationmaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
SN75LBC968DLR ,9-Channel Bus Transceiver With Active TerminationWWW.TI.COM SLLS179E − APRIL 1994 − REVISED AUGU ..
SN75LBC976 ,9-Channel Differential Transceiver 56-SSOP
SN75LP1185DBR ,Low-Power Multiple RS-232 Drivers and Receiversmaximum ratings over operating free-air temperature range (unless otherwise noted)Positive supply-v ..
SN75LP1185DW ,Low-Power Multiple RS-232 Drivers and Receiverslogic diagram (positive logic)2 19RA1 RY13 18RA2 RY24 17RA3 RY35 16DY1 DA16 15DY2 DA27 14RA4 RY48 1 ..
SN75LP1185DWR ,Low-Power Multiple RS-232 Drivers and Receivers SN75LP1185 LOW-POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS SLLS335A – JANUARY 1999 – REVISED JANUA ..
SPN02N60C3 ,for lowest Conduction Losses & fastest SwitchingFeaturesV @ T 650 VDS j,max• New revolutionary high voltage technologyR 2.5ΩDS(on),max• Ultra low g ..
SPN1423S32RG , N-Channel Enhancement Mode MOSFET
SPN2302AS23RG , N-Channel Enhancement Mode MOSFET
SPN2302AS23RG , N-Channel Enhancement Mode MOSFET
SPN2308S23RG , N-Channel Enhancement Mode MOSFET
SPN3402S23RG , N-Channel Enhancement Mode MOSFET
SN75LBC968DL-SN75LBC968DLR
9-Channel Bus Transceiver With Active Termination
24-mA Current-Mode Active TerminationWith Common Nine-Channel Bus Enable Low Output Capacitance Presented to SCSI
Bus, 13.5 pF Typ 3.3 V Compatible Logic Inputs Provide
Bridge from 3 V Controllers to 5 V SCSI
Bus Designed to Operate at 10-Million Data
Transfers Per Second (Fast-SCSI) Controlled Driver Rise and Fall Times
5 ns Min High-Receiver Input-Voltage Hysteresis
500 mV Typ Receiver Input-Noise Pulse Filter
5 ns Typ Each Driver and Receiver Meets ANSI
X3.131-1994 (SCSI-2) and the Proposed
SCSI-3 Standards Power-Up/Power-Down Glitch Protection High Impedance Driver With VCC at 0 V
descriptionThe SN75LBC968 is a nine-channel transceiver
with active termination that drives and receives
the signals from the single-ended, parallel data
buses such as the Small Computer-Systems
Interface (SCSI) bus. The 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 mode drives the wired-OR lines of SCSI (BSY , SEL, and RST) by inputting the data to the direction
control input DE/RE instead of the A input. When driving the data through the A input, the outputs become totem
poles and provide active signal negation for a higher voltage level on low-to-high signal transitions on heavily
loaded buses. In either mode, the turnon and turnoff output transition times are limited to minimize crosstalk
through capacitive coupling to adjacent lines and RF emissions from the cable. The receivers are also designed
for optimum analog performance by precisely controlling the input-voltage thresholds, providing wide
input-voltage hysteresis and including an input-noise filter. These features significantly increase the likelihood
of detecting only the desired data signal and rejecting noise.
LinBiCMOS is a trademark of .
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
