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DP5380N Fiches technique(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce DP5380N
Description  Asynchronous SCSI Interface (ASI)
PDF  32 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP5380N Fiches technique(HTML) 5 Page - National Semiconductor (TI)

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20 Pin Descriptions (Continued)
Symbol
DIP
PCC
Type
Function
REQ
20
22
IO
Request
driven by the TARGET and received by the INITIATOR as part of the REQ
ACK handshake
IO
17
19
IO
InputOutput
driven by the TARGET to control the direction of transfers on the
SCSI bus This signal also distinguishes between selection and reselection
CD
18
20
IO
CommandData
driven by the TARGET to indicate whether command or data bytes
are being transferred
MSG
19
21
IO
Message
driven by the TARGET during message phase to identify message bytes
on the bus
VCC
31
35
VCC GND a
5V DC is required Because of very large switching currents good
decoupling and power distribution is mandatory
GND
11
12 13
21 Connection Diagrams
TLF9756 – 4
Order Number DP5380N
See NS Package Number N40A
TLF9756 – 5
Order Number DP5380V
See NS Package Number V44A
5



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