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Z53C80SCSI Datasheet(PDF) 27 Page - Zilog, Inc.

Part # Z53C80SCSI
Description  SMALL COMPUTER SYSTEM INTERFACE (SCSI)
PDF  40 Pages
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Manufacturer  ZILOG [Zilog, Inc.]
Direct Link  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

Z53C80SCSI Datasheet(HTML) 27 Page - Zilog, Inc.

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Z53C80 SCSI
ZILOG
PS97SCC0200
AC CHARACTERISTICS
DMA Write Initiator Send Cycle Table
No
Description
Min
Max
Units
1
DRQ Low from /DACK Low
60
ns
2
/DACK High to DRQ High
30
ns
3
Write Enable Width [1]
50
ns
4
/DACK Hold from End of /WR
0
ns
5
Data Setup to End of Write Enable [1]
50
ns
6
Data Hold Time from End of /WR
25
ns
7
Width of /EOP Pulse [2]
50
ns
8
/REQ Low to /ACK Low
90
ns
9
/REQ High to DRQ High
70
ns
10
/DACK High to /ACK High
90
ns
11
/WR High to Valid SCSI Data
50
ns
12
Data Hold from Write Enable [1]
15
ns
13
Data Setup to /ACK Low
55
ns
Notes:
[1]
Write Enable is the occurrence of /WR and /DACK.
[2]
/EOP, /WR, and /DACK must be concurrently Low for at least T7 for
proper recognition of the /EOP pulse.



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