參數(shù)資料
型號(hào): 74AHC123A
廠(chǎng)商: NXP Semiconductors N.V.
英文描述: Dual retriggerable monostable multivibrator with reset
中文描述: 雙retriggerable單穩(wěn)態(tài)觸發(fā)器的復(fù)位
文件頁(yè)數(shù): 12/24頁(yè)
文件大?。?/td> 111K
代理商: 74AHC123A
2000 Mar 15
12
Philips Semiconductors
Product specification
Dual retriggerable monostable multivibrator
with reset
74AHC123A;
74AHCT123A
AC CHARACTERISTICS
Type 74AHC123A
GND = 0 V; t
r
= t
f
3.0 ns.
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
(
°
C)
UNIT
WAVEFORMS
C
L
25
40 to +85
40 to +125
MIN. TYP. MAX. MIN. MAX. MIN. MAX.
V
CC
= 3.0 to 3.6 V;
note 1
t
PHL
/t
PLH
propagationdelay;
nA, nB to nQ, nQ
C
EXT
= 0 pF;
R
EXT
= 5 k
;
see Figs 7 and 11
C
EXT
= 0 pF;
R
EXT
= 5 k
;
see Figs 7 and 11
C
EXT
= 0 pF;
R
EXT
= 5 k
;
see Figs 7 and 11
C
EXT
= 0 pF;
R
EXT
= 5 k
;
see Figs 7 and 11
C
EXT
= 0 pF;
R
EXT
= 5 k
;
see Figs 7 and 11
C
EXT
= 0 pF;
R
EXT
= 5 k
;
see Figs 7 and 11
see Fig 8
15 pF
7.4
20.6
1.0
24.0
1.0
26.0
ns
propagationdelay;
nR
D
to nQ, nQ
8.2
22.4
1.0
26.0
1.0
26.0
ns
propagationdelay;
nR
D
to nQ, nQ
(reset)
propagationdelay;
nA, nB to nQ , nQ
6.4
15.8
1.0
18.5
1.0
20.0
ns
50 pF
10.5
24.1
1.0
27.5
1.0
30.0
ns
propagationdelay;
nR
D
to nQ, nQ
11.7
25.9
1.0
29.5
1.0
32.0
ns
propagationdelay;
nR
D
to nQ, nQ
(reset)
trigger pulse
width; nA = LOW
trigger pulse
width; nB = HIGH
reset pulse width;
nR
D
= LOW
output pulse
width;nQ = HIGH;
nQ = LOW
9.2
19.3
1.0
22.0
1.0
24.5
ns
t
W
5.0
5.0
5.0
ns
see Fig 8
5.0
5.0
5.0
ns
see Fig 9
5.0
5.0
5.0
ns
C
EXT
= 28 pF;
R
EXT
= 2 k
;
note 3; see Figs 8,
9 and 10
C
EXT
= 0.01
μ
F;
R
EXT
= 10 k
;
note 3; see Figs 8,
9 and 10
C
EXT
= 0.1
μ
F;
R
EXT
= 10 k
;
note 3; see Figs 8,
9 and 10
115
240
300
300
ns
90
100
110
90
110
85
115
μ
s
0.9
1
1.1
0.9
1.1
0.85
1.15
ms
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