Avago Technologies LSI53C180 - Manual (Page 43)

Electrical Characteristics 3-9
Figure 3.4 LVD Driver
Table 3.7 LVD Driver SCSI Signals—B_SD[15:0]
±
, B_SDP[1:0]
±
, B_SCD
±
, B_SIO
±
,
B_SMSG
±
, B_SREQ
±
, B_SACK
±
, B_SBSY
±
, B_SATN
±
, B_SSEL
±
,
B_SRST
± 1
Symbol Parameter Min Max Units Test Conditions
I
O
+ Source (+) current 9.6 14.4 mA Asserted state
I
O
−
Sink (
−
) current
−
9.6
−
14.4 mA Asserted state
I
O
+ Source (+) current
−
6.4
−
9.6 mA Negated state
I
O
−
Sink (
−
) current 6.4 9.6 mA Negated state
I
OZ
3-state leakage
−
20 20
µ
A V
PIN
= 0 V, 3.47 V
1. V
CM
= 0.7
−
1.8 V, R
L
= 0
−
110
Ω,
R
bias
= 10 k
Ω.
Table 3.8 LVD Receiver SCSI Signals—B_SD[15:0]
±
,
B_SDP[1:0]
±
, B_SCD
±
, B_SIO
±
, B_SMSG
±
, B_SREQ
±
,
B_SACK
±
, B_SBSY
±
, B_SATN
±
, B_SSEL
±
, B_SRST
± 1
1. V
CM
= 0.7
−
1.8 V.
Symbol Parameter Min Max Units
Test
Conditions
V
I
LVD receiver voltage asserting 60 – mV –
V
I
LVD receiver voltage negating –
−
60 mV –
+
−
R
L
2
V
CM
+
I
O
+
R
L
2
I
O
−
−