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参数资料
| 型号： | MM74HC190N |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 通用总线功能 |
| 英文描述： | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| 中文描述： | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL DECADE COUNTER, PDIP16 |
| 封装： | PLASTIC, DIP-16 |
| 文件页数： | 4/8页 |
| 文件大小： | 202K |
| 代理商： | MM74HC190N |
AC Electrical Characteristics
(Continued)
Symbol
Parameter
From
(Input)
To
Conditions V
CC
T
A
e
25
§
C
74HC
54HC
Units
(Output)
T
A
eb
40 to 85
§
C T
A
eb
55 to 125
§
C
Guaranteed Limits
Typ
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Clock
Max/Min
2.0V 125
4.5V
6.0V
255
51
43
320
64
54
385
77
65
ns
ns
ns
41
31
t
PLH,
t
PHL
Maximum Propagation
Delay Time
Down/Up
Ripple
Clock
2.0V
4.5V
6.0V
90
30
24
210
42
36
265
53
45
315
63
54
ns
ns
ns
t
PLH,
t
PHL
Maximum Propagation
Delay Time
Down/Up Max/Min
2.0V
4.5V
6.0V
88
30
23
190
38
32
240
48
41
285
57
48
ns
ns
ns
t
PHL
, t
PLH
Maximum Propagation
Delay Time
Enable
Ripple
Clock
2.0V
4.5V
6.0V
50
18
14
125
25
21
155
31
26
190
38
32
ns
ns
ns
t
W
Minimum Clock, Load or
Clear Input Pulse Width
2.0V
4.5V
6.0V
36
12
9
125
25
21
155
31
26
190
38
32
ns
ns
ns
t
S
Minimum Setup Time
Data
Load
2.0V
4.5V
6.0V
50
14
10
100
20
17
125
25
21
150
30
26
ns
ns
ns
t
H
Data Hold Time
Load
Data
2.0V
b
16
4.5V
6.0V
25
5
5
30
6
6
40
8
7
ns
ns
ns
b
3
b
2
t
S
Minimum Setup Time
Down/Up
Clock
2.0V
4.5V
6.0V
62
18
14
150
30
26
190
38
33
225
48
38
ns
ns
ns
t
H
Minimum Hold Time
Clock
Down/Up
2.0V
b
23
4.5V
6.0V
0
0
0
0
0
0
0
0
0
ns
ns
ns
b
5
b
4
t
S
Minimum Setup Time
Enable
Clock
2.0V
4.5V
6.0V
28
10
7
100
20
17
125
25
21
150
30
26
ns
ns
ns
t
H
Minimum Hold Time
Clock
Enable
2.0V
b
11
4.5V
6.0V
0
0
0
0
0
0
0
0
0
ns
ns
ns
b
5
b
3
t
rem
Minimum Removal Time
Load
Clock
2.0V
4.5V
6.0V
1
1
0
25
5
5
30
6
6
40
8
7
ns
ns
ns
t
THL
, t
TLH
Maximum Output
Rise and Fall Time
2.0V
4.5V
6.0V
30
10
9
75
15
13
95
19
16
110
22
19
s
ns
ns
t
W
Minimum Load
Pulse Width
2.0V
4.5V
6.0V
53
15
12
100
20
17
125
25
21
150
30
26
ns
ns
ns
C
IN
C
PD
Input Capacitance
5
10
10
10
pF
Power Dissipation
Capacitance (Note 5)
35
pF
Note 5:
C
PD
determines the no load dynamic power consumption, P
D
e
C
PD
V
CC2
f
a
I
CC
V
CC
, and the no load dynamic current consumption, I
S
e
C
PD
V
CC
f
a
I
CC
.
4
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| MM74HC191 | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| MM74HC191J | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| MM74HC191N | MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
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| MM74HC191 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control |
| MM74HC191J | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| MM74HC191N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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