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參數(shù)資料
| 型號： | MM74HC191 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 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： | MM54HC190/MM74HC190同步十年向上/向下計數(shù)器的模式控制MM54HC191/MM74HC191同步二進(jìn)制加/減計數(shù)器的模式控制 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 202K |
| 代理商： | MM74HC191 |
AC Electrical Characteristics
T
A
e
25
§
C, V
CC
e
5.0V, t
r
e
t
f
e
6 ns, C
L
e
15 pF (unless otherwise specified)
Symbol
Parameter
From
(Input)
To
Typ
Units
(Output)
f
MAX
Maximum Clock
Frequency
40
MHz
t
PLH
, t
PHL
Maximum Propagation Delay Time
Load
Q
A
, Q
B
Q
C
, Q
D
Q
A
, Q
B
Q
C
, Q
D
Ripple
Clock
30
ns
t
PLH
, t
PHL
Maximum Propagation Delay Time
Data A,
B, C, D
27
ns
t
PLH
, t
PHL
Maximum Propagation Delay Time
Clock
16
ns
t
PLH
, t
PHL
Maximum Propagation Delay Time
Clock
Q
A
, Q
B
Q
C
, Q
D
Max/Min
24
ns
t
PLH
, t
PHL
t
PLH
, t
PHL
Maximum Propagation Delay Time
Clock
30
ns
Maximum Propagation Delay Time
Down/Up
Ripple
Clock
29
ns
t
PLH
, t
PHL
t
PHL
, t
PLH
t
W
Maximum Propagation Delay Time
Down/Up
Max/Min
22
ns
Maximum Propagation Delay Time
Enable
Ripple Clock
22
ns
Minimum Clock, Clear or Load
Input Pulse Width
10
ns
AC Electrical Characteristics
V
CC
e
2.0V to 6.0V, C
L
e
50 pF, t
r
e
t
f
e
6 ns (unless otherwise specified)
From
(Input)
To
T
A
e
25
§
C
74HC
54HC
Symbol
Parameter
(Output)
V
CC
T
A
e b
40 to 85
§
C
Guaranteed Limits
T
A
eb
55 to 125
§
C
Units
Typ
f
MAX
Maximum Clock
Frequency
2.0V
4.5V
6.0V
9
4.0
20
24
3.5
16
19
2.6
13
15
MHz
MHz
MHz
30
36
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Load
Q
A
, Q
B
Q
C
, Q
D
2.0V
4.5V
6.0V
80
27
21
220
44
37
275
55
47
330
66
56
ns
ns
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Data A,
B, C, D
Q
A
, Q
B
Q
C
, Q
D
2.0V
4.5V
6.0V
71
25
19
200
40
34
250
50
43
300
60
51
ns
ns
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Clock
Ripple
Clock
2.0V
4.5V
6.0V
44
25
14
125
25
21
155
31
26
190
38
32
ns
ns
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Clock
Q
A
, Q
B
Q
C
, Q
D
2.0V
4.5V
6.0V
83
29
22
215
43
37
270
54
46
325
65
55
ns
ns
ns
3
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 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 |
| MM54HC245A | Octal TRI-STATE Transceiver |
| MM54HC253 | Dual 4-Channel TRI-STATE Multiplexer |
| MM54HC253J | Dual 4-Channel TRI-STATE Multiplexer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| MM74HC191WMX | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| MM74HC192 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Synchronous Decade Up/Down Counters Synchronous Binary Up/Down Counters |
| MM74HC193 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Synchronous Decade Up/Down Counters Synchronous Binary Up/Down Counters |
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