參數(shù)資料
型號： M74HC221M1R
廠商： 意法半導體
元件分類： 通用總線功能
英文描述： DUAL MONOSTABLE MULTIVIBRATOR
中文描述： 雙單穩(wěn)態(tài)觸發(fā)器
文件頁數(shù)： 7/14頁
文件大?。?/td> 288K
代理商： M74HC221M1R
AC ELECTRICAL CHARACTERISTICS
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Symbol
Parameter
Test Conditions
Value
-40 to 85
o
C
74HC
Min.
Unit
V
CC
(V)
T
A
= 25
o
C
54HC and 74HC
Min.
Typ.
30
-55 to 125
o
C
54HC
Min.
Max.
75
15
13
210
42
36
235
47
40
160
32
27
Max.
95
19
16
265
53
45
295
59
50
200
40
34
Max.
110
22
19
315
63
54
355
71
60
240
48
41
t
TLH
t
THL
Output Transition
Time
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
ns
8
7
t
PLH
t
PHL
Propagation
Delay Time
(A, B - Q, Q)
102
30
24
102
30
24
67
20
16
1.5
1.3
1.2
7
6.9
6.9
1.8
1.5
1.4
10
9.7
9.6
±
1
ns
t
PLH
t
PHL
Propagation
Delay Time
(CLRTRIGGER-Q,Q)
ns
t
PLH
t
PHL
Propagation
Delay Time
(CLR - Q, Q)
ns
t
WOUT
Output Pulse
Width
(for HC221)
C
X
= 100 pF
R
X
= 10 K
μ
s
C
X
= 0.1
μ
F
R
X
= 100 K
ms
t
WOUT
Output Pulse
Width
(for HC221A)
C
X
= 100 pF
R
X
= 10 K
μ
s
C
X
= 0.1
μ
F
R
X
= 100 K
ms
t
WOUT
Output Pulse
Width Error
Between Circuits
in Same Package
Minimum Pulse
Width
%
t
W(H)
t
W(L)
2.0
4.5
6.0
2.0
4.5
6.0
75
15
13
75
15
13
10
95
19
16
95
19
16
10
110
22
20
110
22
20
10
ns
t
W(L)
Minimum Pulse
Width
ns
C
IN
Input Capacitance
Power Dissipation
Capacitance
5
pF
C
PD
(*)
174
pF
(*) C
PD
isdefined asthe value ofthe IC’sinternal equivalent capactance which is calculated from the operating current consumption without load.
(RefertoTestCircuit).Averageopertingcurrentcanbeobtainedbythefollowingequation.I
CC
(opr)=C
PD
V
CC
f
IN
+I
CC
’ Duty/100+I
C
/2(permonostable)
(I
CC
’:Active Supply Current) (Duty:%)
M54/M74HC221/221A
7/14
相關PDF資料
PDF描述
M74HC221C1R DUAL MONOSTABLE MULTIVIBRATOR
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