DS75162AN National Semiconductor, DS75162AN Datasheet - Page 5

• Manufacturer Part Number: DS75162AN
• Description: IC IEEE-488 GPIB TRANSVER 22DIP
• Manufacturer: National Semiconductor
• Type: Transceiverr

Specifications of DS75162AN

• Number Of Drivers/receivers: 8/8
• Protocol: IEEE 488
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Through Hole
• Package / Case: *
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DS75162AN

Functional Description
DS75160A
This device is an 8-channel bi-directional transceiver with
one common direction control input denoted TE When
used to implement the IEEE-488 bus this device is connect-
ed to the eight data bus lines designated DIO
port connections to the bus lines have internal terminators
in accordance with the IEEE-488 Standard that are deacti-
vated when the device is powered down This feature guar-
antees no bus loading when V
puts also have a control mode that either enables or dis-
ables the active upper stage of the totem-pole configura-
tion When this control input denoted PE is in the high
state the bus outputs operate in the high-speed totem-pole
mode When PE is in the low state the bus outputs operate
as open collector outputs which are necessary for parallel
polling
DS75161A
This device is also an 8-channel bi-directional transceiver
which is specifically configured to implement the eight man-
agement signal lines of the IEEE-488 bus This device
paired with the DS75160A forms the complete 16-line inter-
face between the IEEE-488 bus and a single controller in-
strumentation system In compliance with the system orga-
nization of the management signal lines the SRQ NDAC
and NRFD bus port outputs are open collector In contrast
to the DS75160A these open collector outputs are a fixed
configuration The direction control is divided into three
groups The DAV NDAC and NRFD transceiver directions
are controlled by the TE input The ATN SRQ REN and
IFC transceiver directions are controlled by the DC input
The EOI transceiver direction is a function of both the TE
and DC inputs as well as the logic level present on the ATN
channel The port connections to the bus lines have internal
terminators identical to the DS75160A
DS75162A
This device is identical to the DS75161A except that an
additional direction control input is provided denoted SC
The SC input controls the direction of the REN and IFC
transceivers that are normally controlled by the DC input on
the DS75161A This additional control function is instrumen-
tal in implementing multiple controller systems
Control
Signals
Data
I O Ports
Management
Signals
Signal Line
fication
Classi-
Table of Signal Line Abbreviations
B1–B8 Bus Side of Device
D1–D8 Terminal Side
monic
NDAC
NRFD
Mne-
DAV
REN
SRQ
ATN
EOI
IFC
DC
PE
TE
SC
Direction Control
Pull-Up Enable
Talk Enable
System Controller
of Device
Attention
Data Valid
End or Identify
Interface Clear
Not Data Accepted DS75162A
Not Ready for Data
Remote Enable
Service Request
Definition
CC
e
0V The bus port out-
1
DS75161A
DS75162A
DS75160A
All
DS75162A
DS75160A
DS75161A
–DIO
Device
8
The
5
Logic Diagrams
DS75160A
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