Data Sheet

3 www.fairchildsemi.com
74VHCT574A
Absolute Maximum Ratings(Note 2) Recommended Operating
Conditions
(Note 6)
Note 2: Absolute Maximum Ratings are values beyond which the device
may be damaged or have its useful life impaired. The databook specifica-
tions should be met, without exception, to ensure that the system design is
reliable over its power supply, temperature, and output/input loading vari-
ables. Fairchild does not recommend operation outside databook specifica-
tions.
Note 3: HIGH or LOW state. I
OUT
absolute maximum rating must be
observed.
Note 4: When outputs are in OFF-State or when V
CC
OV.
Note 5: V
OUT
GND, V
OUT
V
CC
(Outputs Active).
Note 6: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Supply Voltage (V
CC
) 0.5V to 7.0V
DC Input Voltage (V
IN
) 0.5V to 7.0V
DC Output Voltage (V
OUT
)
(Note 3)
0.5V to V
CC
0.5V
(Note 4)
0.5V to 7.0V
Input Diode Current (I
IK
) 20 mA
Output Diode Current (I
OK
) (Note 5) 20 mA
DC Output Current (I
OUT
) 25 mA
DC V
CC
/GND Current (I
CC
) 75 mA
Storage Temperature (T
STG
) 65 C to 150 C
Lead Temperature (T
L
)
(Soldering, 10 seconds) 260
C
Supply Voltage (V
CC
) 4.5V to 5.5V
Input Voltage (V
IN
) 0V to 5.5V
Output Voltage (V
OUT
)
(Note 3) 0V to V
CC
(Note 4) 0V to 5.5V
Operating Temperature (T
OPR
) 40 C to 85 C
Input Rise and Fall Time (t
r
, t
f
)
V
CC
5.0V 0.5V 0 ns/V 20 ns/V
Symbol Parameter
V
CC
T
A
25 CT
A
40 C to 85 C
Units Conditions
(V) Min Typ Max Min Max
V
IH
HIGH Level 4.5 2.0 2.0
V
Input Voltage 5.5 2.0 20
V
IL
LOW Level 4.5 0.8 0.8
V
Input Voltage 5.5 0.8 0.8
V
OH
HIGH Level
4.5
4.40 4.50 4.40 V V
IN
V
IH
I
OH
50 A
Output Voltage 3.94 3.80 V or V
IL
I
OH
8 mA
V
OL
LOW Level
4.5
0.0 0.1 0.1 V V
IN
V
IH
I
OL
50 A
Output Voltage 0.36 0.44 V or V
IL
I
OL
8 mA
I
OZ
3-STATE Output
5.5 0.25 2.5 A
V
IN
V
IH
or V
IL
Off-State Current V
OUT
V
CC
or GND
I
IN
Input Leakage 0–5.5 0.1 1.0 AV
IN
5.5V or GND
Current
I
CC
Quiescent Supply 5.5 4.0 40.0 AV
IN
V
CC
or GND
Current
I
CCT
Maximum I
CC
/Input 5.5 1.35 1.50 mA V
IN
3.4V
Other Input V
CC
or GND
I
OFF
Output Leakage Current 0.0 0.5 5.0 AV
OUT
5.5V
(Power Down State)