74LV123D 데이터 시트보기 (PDF) - Philips Electronics
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74LV123D Datasheet PDF : 16 Pages
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Philips Semiconductors
Dual retriggerable monostable multivibrator
with reset
Product specification
74LV123
AC CHARACTERISTICS
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF; RL =1 KΩ
SYMBOL
PARAMETER
WAVEFORM
tPHL
Propagation delay
nRD, nA, nB, to nQ
Figure 3
CEXT = 0pF
REXT = 5KΩ
tPLH
Propagation delay
nRD, nA, nB, to nQ
Figure 3
CEXT = 0pF
REXT = 5KΩ
tPHL
Propagation delay
nRD to nQ (reset)
Figure 3
CEXT = 0pF
REXT = 5KΩ
tPLH
Propagation delay
nRD to nQ (reset)
Figure 3
CEXT = 0pF
REXT = 5KΩ
tW
Trigger pulse width
nA = LOW
Figure 3
tW
Trigger pulse width
nB = HIGH
Figure 3
tW
Reset pulse width
nRD = LOW
Figure 2
Output pulse width
Figures 1, 2
tW
nQ = HIGH
nQ = LOW
CEXT = 100nF
REXT = 10KΩ
Output pulse width
Figures 1, 2
tW
nQ = HIGH
nQ = LOW
CEXT = 0pF
REXT = 5KΩ
trt
Retrigger time
nA, nB
Figure 1
CEXT = 0pF
REXT = 5KΩ
CONDITION
VCC(V)
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
1.2
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
2.7
3.0 to 3.6
4.5 to 5.5
2.0
2.7
3.0 to 3.6
4.5 to 5.5
LIMITS
–40 to +85°C
MIN TYP1 MAX
120
40
76
30
56
252
48
182
40
120
40
76
30
56
252
48
182
40
100
30
57
23
43
202
38
142
31
100
30
57
23
43
202
38
142
31
30
5
25
3.5
20
3.02
15
2.52
30
13
25
8
20
72
15
52
35
6
30
5
25
42
20
32
470
460
4502
4302
100
90
802
702
70
55
452
402
–40 to +125°C
MIN MAX
92
68
57
46
92
68
57
46
68
51
45
36
68
51
45
36
40
30
25
20
40
30
25
20
45
40
30
25
UNIT
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
1998 Apr 28
7
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