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SAA7385 Datasheet(PDF) 52 Page - NXP Semiconductors

Part No. SAA7385
Description  Error correction and host interface IC for CD-ROM SEQUOIA
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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SAA7385 Datasheet(HTML) 52 Page - NXP Semiconductors

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1996 Jun 19
52
Philips Semiconductors
Preliminary specification
Error correction and host interface IC for
CD-ROM (SEQUOIA)
SAA7385
15.6
SCSI interface timing
VDD = 4.75 to 5.25 V; VSS =0V; Tamb = −10 to +70 °C; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
Target asynchronous send; see Fig.19
t1
Data set-up time to REQ LOW
60
ns
t2
ACK LOW to REQ HIGH
40
ns
t3
Data hold time from ACK LOW
FIFO not empty
5
ns
t4
ACK HIGH to REQ LOW
data already set-up
40
ns
Target asynchronous receive; see Fig.20
t1
ACK LOW to REQ HIGH
40
ns
t2
ACK HIGH to REQ LOW
FIFO not full
40
ns
t3
Data set-up time to ACK LOW
0
ns
t4
Data hold time from REQ HIGH
0
ns
Fast SCSI-2 single-ended transfers (10 Mbytes/s)
TARGET SYNCHRONOUS OUTPUT; see Fig.21
t1
REQ or ACK assertion period
35
ns
t2
REQ or ACK negation period
35
ns
t3
Data set-up time to REQ or ACK LOW
33
ns
t4
Data hold time from ACK or REQ LOW
45
ns
TARGET SYNCHRONOUS INPUT; see Fig.22
t1
REQ or ACK assertion period
20
ns
t2
REQ or ACK negation period
20
ns
t3
Data set-up time to REQ or ACK LOW
0
ns
t4
Data hold time from ACK or REQ LOW
10
ns
Fig.19 Target asynchronous send signal transitions.
handbook, full pagewidth
MGE407
t1
t3
t2
t4
SD7 to SD0
REQ
ACK


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