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參數(shù)資料
| 型號(hào)： | DM74S257 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 3-STATE Quad 1-of-2 Data Selector/Multiplexer |
| 中文描述： | 三態(tài)四1 - 2數(shù)據(jù)選擇器/復(fù)用器 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 47K |
| 代理商： | DM74S257 |
www.fairchildsemi.com
4
D
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Note 5:
C
L
=
5 pF.
R
L
=
280
Symbol
Parameter
From (Input)
C
L
=
15 pF
Min
C
L
=
50 pF
Min
Units
To (Output)
Max
Max
t
PLH
Propagation Delay Time
Data to Output
7.5
11
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
t
PHL
Data to Output
6.5
10
ns
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
Select to Output
15
16
ns
t
PHL
Select to Output
15
16
ns
HIGH-to-LOW Level Output
Output Enable Time
to HIGH Level Output
t
PZH
Output Control to Y
19.5
23
ns
t
PZL
Output Enable Time
to LOW Level Output
Output Disable Time
Output Control to Y
21
24
ns
t
PHZ
Output Control to Y
8.5
ns
to HIGH Level Output (Note 5)
Output Disable Time
to LOW Level Output (Note 5)
t
PLZ
Output Control to Y
14
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM74S257N | 3-STATE Quad 1-of-2 Data Selector/Multiplexer |
| DM74S280 | 9-Bit Parity Generator/Checker |
| DM74S280M | 9-Bit Parity Generator/Checker |
| DM74S280N | 9-Bit Parity Generator/Checker |
| DM74S280MX | Parity Generator/Checker |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74S257 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74S257J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DM74S257N | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Qd 3-STATE Sel/Mul RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| DM74S280 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| DM74S280J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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