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74HCT221N Arkusz danych(PDF) 9 Page - NXP Semiconductors

Numer części 74HCT221N
Szczegółowy opis  Dual non-retriggerable monostable multivibrator with reset
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Producent  PHILIPS [NXP Semiconductors]
Strona internetowa  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HCT221N Arkusz danych(HTML) 9 Page - NXP Semiconductors

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December 1990
9
Philips Semiconductors
Product specification
Dual non-retriggerable monostable
multivibrator with reset
74HC/HCT221
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr =tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
−40 to +85 −40 to +125
min
typ max min max.
min.
max.
tPLH
propagation delay (trigger)
nA, nRD to nQ
30
50
63
75
ns
4.5
CEXT = 0 pF;
REXT =5 kΩ;
Fig.10
tPLH
propagation delay (trigger)
nB to nQ
24
42
53
63
ns
4.5
CEXT = 0 pF;
REXT =5 kΩ;
Fig.10
tPHL
propagation delay (trigger)
nA to nQ
26
44
55
66
ns
4.5
CEXT = 0 pF;
REXT =5 kΩ;
Fig.10
tPHL
propagation delay (trigger)
nB to nQ
21
35
44
53
ns
4.5
CEXT = 0 pF;
REXT =5 kΩ;
Fig.10
tPHL
propagation delay (trigger)
nRD to nQ
26
43
54
65
ns
4.5
CEXT = 0 pF;
REXT =5 kΩ;
Fig.10
tPHL
propagation delay (reset)
nRD to nQ
26
43
54
65
ns
4.5
CEXT = 0 pF;
REXT =5 kΩ;
Fig.11
tPLH
propagation delay (reset)
nRD to nQ
31
51
64
77
ns
4.5
CEXT = 0 pF;
REXT =5 kΩ;
Fig.11
tTHL/ tTLH output transition time
7
15
19
22
ns
4.5
Fig.10
tW
trigger pulse width
nA = LOW
20
13
25
30
ns
4.5
Fig.10
tW
trigger pulse width
nB = HIGH
20
13
25
30
ns
4.5
Fig.10
tW
pulse width
nRD = LOW
22
13
28
33
ns
4.5
Fig.8
tW
output pulse width
nQ = LOW
nQ = HIGH
630
700 770
602
798
595
805
µs
5.0
CEXT = 100 nF;
REXT = 10 kΩ;
Fig.10
tW
trigger pulse width
nQ or nQ
140
−−
ns
4.5
CEXT = 28 pF;
REXT =2 kΩ;
Fig.10
tW
trigger pulse width
nQ or nQ
1.5
−−
µs
4.5
CEXT = 1 nF;
REXT = 2 kΩ;
Fig.10


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