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9-4
Electrical Characteristics
Figure 9.2
LVD Receiver
Table 9.4
LVD Receiver SCSI Signals—SD[7:0]+, SD[7:0]
−
, SDP0+, SDP0
−
, SREQ/+,
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
Min
Max
Units
V
I
LVD receiver voltage asserting
60
–
mV
V
I
LVD receiver voltage negating
–
−
60
mV
+
−
V
I
2
V
CM
+
V
CM
= 0.7 - 1.8 V
V
I
2
−
+
−
−
+
Table 9.5
SE SCSI and SFF-8067 Signals—SD[7:0]+, SD[7:0]
−
, SHID[2:0]+,
SHID[2:0]
−
, SDP0+, SDP0
−
, SREQ+, SREQ
−
, SACK+, SACK
−
Symbol Parameter
Min
Max
Units
Test Conditions
V
ih
Input high voltage
2.0
5.0
V
–
V
il
Input low voltage
Vss
−
0.3
0.8
V
Referenced to V
SS
V
oh
Output high voltage
2.0
Vdd +0.3
V
I
OH
= 7 mA
V
ol
Output low voltage
Vss
0.5
V
I
OL
= 48 mA
V
ol
Output low voltage (SFF-8067 mode)
Vss
0.5
V
4 mA
Содержание Symbios SYM53C040
Страница 12: ...xii Preface...
Страница 90: ...4 18 SCSI and DMA Registers...
Страница 98: ...5 8 SFF 8067 Registers...
Страница 110: ...6 12 Two Wire Serial Registers...
Страница 126: ...7 16 Miscellaneous Registers...
Страница 160: ...8 34 System Registers...
Страница 184: ...9 24 Electrical Characteristics...
Страница 194: ...A 10 Register Summary...
Страница 214: ......