Operating conditions – Avago Technologies LSI53C120 User Manual
Page 39
Electrical Characteristics
3-9
lists the operating conditions for the LSI53C120 device.
provides the minimum and maximum values associated with
these LSI53C120 SCSI signals.
Table 3.9
Operating Conditions
1
Symbol
Parameter
Min
Max
Unit
Test Conditions
V
DD
Supply voltage
4.75
5.25
V
–
I
DD
Supply current (dynamic)
Supply current (static)
–
80
1
mA
mA
–
–
T
A
Operating free air
0
70
°
C
–
θ
JA
Thermal resistance
(junction to ambient air)
–
41.3
°
C/W
–
1. Conditions that exceed the operating limits may cause the device to function incorrectly.
Table 3.10
SCSI Signals – A_SD(15-0)/, A_SDP(1-0)/, A_SREQ/, A_SACK/, B_SD(15-
0)/, B_SDP(1-0)/, B_SREQ/, B_SACK/
Symbol
Parameter
Min
Max
Unit
Test Conditions
V
IH
Input high voltage
1.9
V
DD
+ 0.5
V
–
V
IL
Input low voltage
V
SS
- 0.5
1.0
V
–
V
OH
1
Output high voltage
2.4
3.5
V
2.5 mA
V
OL
Output low voltage
V
SS
0.4
V
48 mA
I
OZ
3-state leakage
-10
10
µ
A
–
1. TolerANT active negation enabled