Absolute Maximum Ratings (Note 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
CC
) −0.5V to +7.0V
DC Input Voltage (V
I
) −0.5V to +7.0V
DC Input Diode Current (I
IK
)
V
I
<GND −50 mA
DC Output Diode Current (I
OK
)
V
O
<GND −50mA
V
O
≥V
CC
+50mA
DC Output Voltage (V
O
)
Output in High or Low State -0.5V to V
CC
+ 0.5V
Output in TRI-STATE -0.5V to 7.0V
DC Output Source or Sink Current
(I
O
)±50mA
DC V
CC
or Ground Current ±200mA
Storage Temperature Range
(T
STG
) −65˚C to +150˚C
Junction Temperature (T
J
)
CDIP 175˚C
Recommended Operating
Conditions (Note 3)
Supply Voltage (V
CC
)
Operating 2.0V to 3.6V
Data Retention 1.5V to 3.6V
Input Voltage (V
I
) 0V to 5.5V
Output Voltage (V
O
)
High or Low State 0V to V
CC
TRI-STATE 0V to 5.5V
Operating Temperature (T
A
)
54LCX −55˚C to +125˚C
Minimum Input Edge Rate (∆t/∆V)
V
IN
from 0.8V to 2.0V, V
CC
= 3.0V 0ns/V to 10ns/V
Note 2: The Absolute Maximum Ratings are those values beyond which the
safety of the device cannot be guaranteed. The device should not be oper-
ated at these limits. The parametric values defined in the Electrical Charac-
teristics tables are not guaranteed at the Absolute Maximum Ratings. The
“Recommended Operating Conditions” table will define the conditions for ac-
tual device operation.
Note 3: IOAbsolute Maximum Rating must be observed.
DC Electrical Characteristics
Symbol Parameter Conditions VCC TA=−55˚C to +125˚C Units
(V) Min Max
VIH HIGH Level Input Voltage 2.7–3.6 2.0 V
VIL LOW Level Input Voltage 2.7–3.6 0.8 V
VOH HIGH Level Output Voltage IOH =−100 µA 2.7–3.6 VCC − 0.2 V
IOH =−12 mA 2.7 2.2 V
IOH =−12 mA 3.0 2.4 V
IOH =−24 mA 3.0 2.2 V
VOL LOW Level Output Voltage IOL =100 µA 2.7–3.6 0.2 V
IOL =12 mA 2.7 0.4 V
IOL =24 mA 3.0 0.55 V
IIInput Leakage Current 0 ≤VI≤5.5V 2.7–3.6 ±5.0 µA
VIKL Clamp Diode Voltage IM= -18mA 3.0 -1.2 V
IOZ TRI-STATE I/O Leakage 0 ≤VO≤5.5V 2.7–3.6 ±5.0 µA
VI=VIH or VIL
ICCZ Supply Current Outputs
TRI-STATE VI=5.5V or GND 2.7-3.6 10 µA
IOFF Power-Off Leakage Current VCC = 0V, VI= 0V, VM=
5.5V 0 100 µA
ICC Quiescent Supply Current VI=VCC or GND 2.7-3.6 10 µA
∆ICC Increase in ICC per Input VIH =VCC −0.6V 2.7–3.6 0.5 mA
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