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參數(shù)資料
| 型號： | 74191 |
| 廠商： | Fairchild Semiconductor Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | Synchronous 4-Bit Up/Down Counter with Mode Control |
| 中文描述： | 同步4位加/減計(jì)數(shù)器的模式控制 |
| 文件頁數(shù)： | 3/6頁 |
| 文件大小： | 129K |
| 代理商： | 74191 |
Switching Characteristics
at V
CC
e
5V and T
A
e
25
§
C (See Section 1 for Test Waveforms and Output Load)
Symbol
Parameter
From (Input)
To (Output)
R
L
e
400
X
, C
L
e
15 pF
Units
Min
Max
f
MAX
t
PLH
Maximum Clock Frequency
20
MHz
Propagation Delay Time
Low to High Level Output
Load to
Any Q
33
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Load to
Any Q
70
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Data to
Any Q
22
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Data to
Any Q
70
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Clock to
Ripple Carry
20
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Clock to
Ripple Carry
24
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Clock to
Any Q
24
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Clock to
Any Q
36
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Clock to
Max/Min
42
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Clock to
Max/Min
52
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Down/Up to
Ripple Carry
45
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Down/Up to
Ripple Carry
45
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Down/Up to
Max/Min
33
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Down/Up to
Max/Min
33
ns
t
PLH
Propagation Delay Time
Low to High Level Output
Enable G to
Ripple Carry
24
ns
t
PHL
Propagation Delay Time
High to Low Level Output
Enable G to
Ripple Carry
24
ns
3
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74191 WAF | 制造商:Texas Instruments 功能描述: |
| 74191-0002 | 功能描述:標(biāo)準(zhǔn)卡緣連接器 CARD EDGE CONN 300P micrprocessor RoHS:否 制造商:3M Electronic Solutions Division 系列:SPD08 產(chǎn)品類型:Contacts 位置/觸點(diǎn)數(shù)量:60 安裝角:Straight 電路板厚度: 安裝風(fēng)格:SMD/SMT 節(jié)距:8 mm 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Copper Alloy 觸點(diǎn)電鍍:Gold |
| 74191-0003 | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:High Speed Edgecard Connector in Ground Signal Format for High Performance Applications |
| 74191-0004 | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:High Speed Edgecard Connector in Ground Signal Format for High Performance Applications |
| 74191-0005 | 制造商:MOLEX 制造商全稱:Molex Electronics Ltd. 功能描述:High Speed Edgecard Connector in Ground Signal Format for High Performance Applications |
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