DS75160A Datasheet, PDF (8/10 Pages) National Semiconductor (TI) – IEEE-488 GPIB Transceivers

Functional Truth Tables
DS75160A
Control Input
Level
TE
PE
H
H
H
L
L
X
Data Transceivers
Direction
T
T
R
Bus Port Configuration
Totem-Pole Output
Open Collector Output
Input
DS75161A
Control Input Level
Transceiver Signal Direction
TE
DC
ATN*
EOI REN IFC SRQ NRFD
H
H
R
R
R
T
R
H
L
T
T
T
R
R
L
H
R
R
R
T
T
L
L
T
T
T
R
T
H
X
H
T
L
X
H
R
X
H
L
R
X
L
L
T
H = High level input
L = Low level input
X = Don’t care
T = Transmit, i.e., signal outputted to bus
R = Receive, i.e., signal outputted to terminal
*The ATN signal level is sensed for internal multiplex control of EOI transmission direction logic.
NDAC
R
R
T
T
DAV
T
T
R
R
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