M74HCT14 STMICROELECTRONICS [STMicroelectronics], M74HCT14 Datasheet - Page 4
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M74HCT14
Manufacturer Part Number
M74HCT14
Description
HEX SCHMITT INVERTER
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.M74HCT14.pdf
(9 pages)
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M54/M74HCT14
AC ELECTRICAL CHARACTERISTICS (C
(*) C
(Refer to Test Circuit). Average operting current can be obtained by the following equation. I
SWITCHING CHARACTERISTICS TEST CIRCUIT
TEST CIRCUIT I
4/9
Symbol
C
INPUT WAVEFORM IS THE SAME AS THAT IN CASE OF SWITCHING CHARACTERISTICS TEST.
t
t
t
t
PD
C
TLH
THL
PLH
PHL
PD
IN
(*)
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
Output Transition
Time
Propagation
Delay Time
Input Capacitance
Power Dissipation
Capacitance
Parameter
CC
(Opr.)
V
(V)
4.5
4.5
CC
Test Conditions
L
= 50 pF, Input t
Min.
54HC and 74HC
T
A
Typ.
= 25
19
45
8
5
o
C
Max.
15
30
10
CC
r
(opr) = C
= t
Value
f
-40 to 85
Min.
= 6 ns)
PD
74HC
V
CC
Max.
19
38
10
o
f
C
IN
+ I
-55 to 125
CC
Min.
54HC
Max.
22
45
10
o
C
Unit
pF
pF
ns
ns