Datasheet

SN54AHC74, SN74AHC74
www.ti.com SCLS255K –DECEMBER 1995–REVISED DECEMBER 2013
Absolute Maximum Ratings
over operating free-air temperature range (unless otherwise noted)
(1)
UNIT
Supply voltage range, V
CC
–0.5 V to 7 V
Input voltage range, V
I
(
(2)
)
–0.5 V to 7 V
Output voltage range, V
O
(
(2)
)
–0.5 V to V
CC
+ 0.5 V
Input clamp current, I
IK
(V
I
< 0) –20 mA
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
) ±20 mA
Continuous output current, I
O
(V
O
= 0 to V
CC
) ±25 mA
Continuous current through V
CC
or GND ±50 mA
D package 86°C/W
DB package
(3)
96°C/W
DGV package
(3)
127°C/W
Package thermal impedance, Θ
JA
N package
(3)
80°C/W
NS package
(3)
76°C/W
PW package
(3)
113°C/W
RGY package
(4)
47°C/W
Storage temperature range, T
stg
–65°C to 150°C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
(3) The package thermal impedance is calculated in accordance with JESD 51-7.
(4) The package thermal impedance is calculated in accordance with JESD 51-5.
Recommended Operating Conditions
(1)
SN54AHC74 SN74AHC74
UNIT
MIN MAX MIN MAX
V
CC
Supply voltage 2 5.5 2 5.5 V
V
CC
= 2 V 1.5 1.5
V
IH
High-level input voltage V
CC
= 3V 2.1 2.1 V
V
CC
= 5.5 V 3.85 3.85
V
CC
= 2 V 0.5 0.5
V
IL
Low-level input voltage V
CC
= 3 V 0.9 0.9 V
V
CC
= 5.5 V 1.65 1.65
V
I
Input voltage 0 5.5 0 5.5 V
V
O
Output voltage 0 V
CC
0 V
CC
V
V
CC
= 2 V –50 –50 µA
I
OH
High-level output current V
CC
= 3.3 V ± 0.3 V –4 –4
mA
V
CC
= 5 V ± 0.5 V –8 –8
V
CC
= 2 V 50 50 µA
I
OL
Low-level output current V
CC
= 3.3 V ± 0.3 V 4 4
mA
V
CC
= 5 V ± 0.5 V 8 8
V
CC
= 3.3 V ± 0.3 V 100 100
Δt/Δv Input transition rise or fall rate ns/V
V
CC
= 5 V ± 0.5 V 20 20
T
A
Operating free-air temperature –55 125 –40 125 °C
(1) All unused inputs of the device must be held at V
CC
or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
Copyright © 1995–2013, Texas Instruments Incorporated Submit Documentation Feedback 3
Product Folder Links: SN54AHC74 SN74AHC74