Capacitance measurement
C1(pF)
C2(pF)
C3(pF)
C1(pF)
C2(pF)
C3(pF)
|C1-C2| (pF)
|C1-C2| (pF)
|C1 – C1(REQ)|(pF)
|C2 – C2(REQ)|(pF)
|C1 – C1(ACK)|(pF)
|C2 – C2(ACK)|(pF)
1.11.6
System level requirements for LVD SCSI drivers and receivers
The requirements for LVD SCSI drivers and receivers are based on the system level requirements
stated in Table 1.21. Some of these requirements are specifically called out in other subclauses
while others are derived from bus loading conditions and trade-offs between competing
parameters.
Table 1.20
Maximum capacitance
Max.
@V=0.7 to 1.8 VDC -Signal/GND
15
REQ, ACK and DB(15-0,P_CRCA,P1)
@V=0.7 to 1.8 VDC -Signal/GND
15
REQ, ACK and DB(15-0,P_CRCA,P1)
@V=0.7 to 1.8 VDC -Signal/GND
8
REQ, ACK and DB(15-0,P_CRCA,P1)
@V=0.7 to 1.8 VDC -Signal/GND
25
@V=0.7 to 1.8 VDC -Signal/GND
25
@V=0.7 to 1.8 VDC -Signal/GND
13
V is the same for both signals +/- 100 mV
1.5
REQ, ACK and DB(15-0, P_CRCA, P1)
3
For C1is any capacitance of DB(15-
2
For C2is any capacitance of DB(15-
2
For C1is any capacitance of DB(15-
2
For C2is any capacitance of DB(15-
2
C141-E123-01EN
Notes
all other signals
all other signals
all other siganls
All other signal
0,P_CRCA,P1)
0,P_CRCA,P1)
0,P_CRCA,P1)
0,P_CRCA,P1)
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