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74HC93DB数据手册
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March 1988 5
Philips Semiconductors
HCMOS family characteristics FAMILY SPECIFICATIONS
DC CHARACTERISTICS FOR 74HCT
Voltages are referenced to GND (ground = 0 V)
SYMBOL PARAMETER
T
amb
(°C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
V
I
OTHER+25 40 to +85 40 to +125
min. typ. max. min. max. min. max.
V
IH
HIGH level input
voltage
2.0 1.6 2.0 2.0 V 4.5
to
5.5
V
IL
LOW level input
voltage
1.2 0.8 0.8 0.8 V 4.5
to
5.5
V
OH
HIGH level output
voltage
all outputs
4.4 4.5 4.4 4.4 V 4.5 V
IH
or
V
IL
I
O
= 20 µA
V
OH
HIGH level output
voltage
standard outputs
3.98 4.32
3.84 3.7 V 4.5 V
IH
or
V
IL
I
O
= 4.0 mA
V
OH
HIGH level output
voltage
bus driver outputs
3.98 4.32
3.84 3.7 V 4.5 V
IH
or
V
IL
I
O
= 6.0 mA
V
OL
LOW level output
voltage
all outputs
0 0.1 0.1 0.1 V 4.5 V
IH
or
V
IL
I
O
= 20 µA
V
OL
LOW level output
voltage
standard outputs
0.15 0.26
0.33 0.4 V 4.5 V
IH
or
V
IL
I
O
= 4.0 mA
V
OL
LOW level output
voltage
bus driver outputs
0.16 0.26
0.33 0.4 V 4.5 V
IH
or
V
IL
I
O
= 6.0 mA
±I
I
input leakage
current
0.1 1.0 1.0 µA 5.5 V
CC
or
GND
±I
OZ
3-state OFF-state
current
0.5 5.0 10.0 µA 5.5 V
IH
or
V
IL
V
O
=V
CC
or
GND per input
pin;
other inputs at
V
CC
or GND;
I
O
= 0
I
CC
quiescent supply
current
SSI 2.0 20.0 40.0 µA 5.5 V
CC
or
GND
I
O
= 0
flip-flops 4.0 40.0 80.0 5.5 I
O
= 0
MSI 8.0 80.0
160.0 5.5 I
O
= 0
LSI 50.0 500 1000 5.5 I
O
= 0

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