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参数资料
| 型号： | MM74HCT190 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | Level changes on Enable or Down/Up can be made regardless of the level of the clock |
| 中文描述： | 水平变化启用或向下/向上，可无论在时钟的水平 |
| 文件页数： | 3/8页 |
| 文件大小： | 170K |
| 代理商： | MM74HCT190 |
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
Conditions
Typ
Guaranteed
Limits
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
30
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Data A,
B, C, D
Q
A
, Q
B
Q
C
, Q
D
27
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Clock
Ripple Clock
16
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Clock
Q
A
, Q
B
Q
C
, Q
D
24
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Clock
Max/Min
30
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Down/Up
Ripple Clock
29
ns
t
PLH
, t
PHL
Maximum Propagation
Delay Time
Down/Up
Max/Min
22
ns
t
PHL
, t
PLH
Maximum Propagation
Delay Time
Enable
Ripple Clock
22
ns
t
W
Minimum Clock or Load
Input Pulse Width
10
ns
3
相关PDF资料 |
PDF描述 |
|---|---|
| MM74HCT191 | Level changes on Enable or Down/Up can be made regardless of the level of the clock |
| MM54HCT193 | Lockwire |
| MM54HCT193J | SWITCH |
| MM74HCT193 | CLAMP |
| MM74HCT193J | CLAMP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MM74HCT191 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Level changes on Enable or Down/Up can be made regardless of the level of the clock |
| MM74HCT193 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Synchronous Binary Up/Down Counters |
| MM74HCT193J | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Synchronous Binary Up/Down Counters |
| MM74HCT193N | 制造商:NSC 制造商全称:National Semiconductor 功能描述:Synchronous Binary Up/Down Counters |
| MM74HCT193WM | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
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