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參數(shù)資料
| 型號： | DS75162A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | IEEE-488 GPIB Transceivers |
| 中文描述： | 的IEEE - 488 GPIB的收發(fā)器 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 185K |
| 代理商： | DS75162A |
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 DIO1–DIO8 The
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 VCC e 0V The bus port out-
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
Table of Signal Line Abbreviations
Signal Line
Mne-
Classi-
monic
Definition
Device
fication
DC
Direction Control
DS75161A
DS75162A
Control
PE
Pull-Up Enable
DS75160A
Signals
TE
Talk Enable
All
SC
System Controller
DS75162A
Data
B1 – B8
Bus Side of Device
IO Ports
D1 – D8 Terminal Side
DS75160A
of Device
ATN
Attention
DAV
Data Valid
EOI
End or Identify
Management
IFC
Interface Clear
DS75161A
Signals
NDAC
Not Data Accepted
DS75162A
NRFD
Not Ready for Data
REN
Remote Enable
SRQ
Service Request
Logic Diagrams
DS75160A
TLF5804 – 4
http
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS75162AN | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:IEEE-488 GPIB Transceivers |
| DS75162AN/A+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single 8-bit Bus Transceiver |
| DS75162AN/B+ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single 8-bit Bus Transceiver |
| DS75162AWM | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DS75176 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Multipoint RS-485/RS-422 Transceivers |
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