参数资料
型号: 74AHC123
厂商: NXP Semiconductors N.V.
英文描述: Dual retriggerable monostable multivibrator with reset
中文描述: 双retriggerable单稳态触发器的复位
文件页数: 10/24页
文件大小: 111K
代理商: 74AHC123
2000 Mar 15
10
Philips Semiconductors
Product specification
Dual retriggerable monostable multivibrator
with reset
74AHC123A;
74AHCT123A
DC CHARACTERISTICS
Family 74AHC
Over recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Note
1.
Voltage on pin nR
EXT
/C
EXT
= 0.5
×
V
CC
and pin R
EXT
/C
EXT
in OFF-state during test.
SYMBOL
PARAMETER
TEST CONDITIONS
T
amb
(
°
C)
UNIT
OTHER
V
CC
(V)
25
40 to +85
40 to +125
MIN.
TYP.
2.0
3.0
4.5
MAX.
0.5
0.9
1.65
MIN.
MAX.
0.5
0.9
1.65
MIN.
MAX.
0.5
0.9
1.65
V
IH
HIGH-level input
voltage
2.0
3.0
5.5
2.0
3.0
5.5
2.0
3.0
4.5
3.0
1.5
2.1
3.85
1.9
2.9
4.4
2.58
1.5
2.1
3.85
1.9
2.9
4.4
2.48
1.5
2.1
3.85
1.9
2.9
4.4
2.40
V
V
V
V
V
V
V
V
V
V
V
IL
LOW-level input
voltage
V
OH
HIGH-leveloutput
voltage
V
I
= V
IH
or V
IL
;
I
O
=
50
μ
A
V
I
= V
IH
or V
IL
;
I
O
=
4.0 mA
V
I
= V
IH
or V
IL
;
I
O
=
8.0 mA
V
I
= V
IH
or V
IL
;
I
O
= 50
μ
A
4.5
3.94
3.8
3.70
V
V
OL
LOW-level output
voltage
2.0
3.0
4.5
3.0
0
0
0
0.1
0.1
0.1
0.36
0.1
0.1
0.1
0.44
0.1
0.1
0.1
0.55
V
V
V
V
V
I
= V
IH
or V
IL
;
I
O
= 4.0 mA
V
I
= V
IH
or V
IL
;
I
O
= 8.0 mA
V
I
= V
CC
or GND; note 1
4.5
0.36
0.44
0.55
V
I
I
input leakage
current;
R
EXT
/C
EXT
input leakage
current;
nA, nB, nR
D
quiescent supply
current
quiescent supply
current active
state (per circuit)
5.5
±
0.25
±
2.5
±
10.0
μ
A
V
I
= V
CC
or GND
5.5
±
0.1
±
1.0
±
2.0
μ
A
I
CC
V
I
= V
CC
or GND; I
O
= 0
V
I
= V
CC
or GND; note 1
5.5
4.0
40
80
μ
A
3
4.5
5.5
160
380
560
5
250
500
750
10
280
650
975
10
280
650
975
10
μ
A
μ
A
μ
A
pF
C
I
input capacitance
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