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LVD Receiver SCSI Signals—SD[7:0]+, SD[7:0] − , SDP0+, SDP0 − , SREQ/+,
Table 9.4
SREQ/ − , SACK/+, SACK/ − , SMSG/+, SMSG/ − , SIO/+, SIO/ − , SCD/+, SCD/ − ,
SATN/+, SATN/ − , SBSY/+, SBSY/ − , SSEL/+, SSEL/ − , SRST/+, SRST/ − ,
SHID[2:0]+, SHID[2:0] −
Symbol
Parameter
V
LVD receiver voltage asserting
I
V
LVD receiver voltage negating
I
SE SCSI and SFF-8067 Signals—SD[7:0]+, SD[7:0] − , SHID[2:0]+,
Table 9.5
SHID[2:0] − , SDP0+, SDP0 − , SREQ+, SREQ − , SACK+, SACK −
Symbol Parameter
V
Input high voltage
ih
V
Input low voltage
il
V
Output high voltage
oh
V
Output low voltage
ol
V
Output low voltage (SFF-8067 mode)
ol
9-4
Figure 9.2
LVD Receiver
+
V
I
+
2
−
V
+
CM
−
V
I
2
−
V
= 0.7 - 1.8 V
CM
Electrical Characteristics
+
−
Min
Max
2.0
5.0
Vss −0.3
0.8
2.0
Vdd +0.3
Vss
0.5
Vss
0.5
Min
Max
60
–
−60
–
Units
Test Conditions
V
–
V
Referenced to V
V
I
= 7 mA
OH
V
I
= 48 mA
OL
V
4 mA
Units
mV
mV
SS
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