HP 10343B Operating Manual page 63

Scsi bus preprocessor
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Note
Maximum Data Rates:
10 Megabytes per second
Although the SCSI standard specifies the bus at 5.5 Megabytes
per second, the HP 10343B is tested at 20 Megabytes per second
using the Request and Acknowledge handshake lines.
Arbitration:
Setup Time:
30 ns
Hold Time:
10 ns
Reselect/Select:
Setup Time:
30 ns
Hold Time:
10 ns
Request Handshake
Lines:
Setup Time:
30 ns
Hold Time:
10 ns
Acknowledge
Handshake Lines:
Setup Time:
30 ns
Hold Time:
10 ns
Minimum Request
and Acknowledge
Pulse Width:
25 ns
Note
SCSI lines are sampled 45 ns after Reset occurs during a Bus
Free state.
Signal Line Loading:
0.4 mA TTL Low at 0.5 V.
Additional Information
A-2

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