Figure3.6 external reset circuit, External reset circuit, Bidirectional scsi signals—a_scd – Avago Technologies LSI53C140 User Manual
Page 49: Input control signals—clock, reset/, ws_enable
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Electrical Characteristics
3-15
Ver. 2.1
Copyright © 1998–2001 by LSI Logic Corporation. All rights reserved.
Figure 3.6
External Reset Circuit
Table 3.12
Bidirectional SCSI Signals
—
A_SCD
±
, A_SIO
±
,
A_SMSG
±
, A_SBSY
±
, A_SATN
±
, A_SSEL
±
, A_SRST
±
,
B_SCD
±,
B_SIO
±,
B_SMSG ,B_SBSY
±
, B_SATN ,
B_SSEL
±
, B_SRST
Symbol Parameter
Min
Max
Unit
Test Conditions
V
IH
Input high voltage
2.0
V
DD
+0.3
V
–
V
IL
Input low voltage
V
SS
−
0.3
0.8
V
–
V
OL
Output low
voltage
V
SS
0.5
V
48 mA
I
OZ
3-state leakage
−
20
20
µ
A
V
PIN
= 0 V, 3.47 V
Table 3.13
Input Control Signals
—
CLOCK, RESET/, WS_ENABLE
Symbol
Parameter
Min
Max
Unit
Test Conditions
V
IH
Input high voltage
2.0
5.55
1
1. Operating Conditions.
V
–
V
IL
Input low voltage
V
SS
0.8
V
–
I
OZ
Input leakage
−
10
10
µ
A
V
PIN
= 0 V, 5.25 V
Input
3.3 V
0.1
µ
F
Reset
Pin 146
3.3 V
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