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參數(shù)資料
| 型號： | DM74AS257M |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 10-Bit Bus Transceiver With 3-State Outputs 24-SOIC -40 to 85 |
| 中文描述： | AS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| 封裝： | 0.150 INCH, SOIC-16 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 60K |
| 代理商： | DM74AS257M |
www.fairchildsemi.com
4
D
DM74AS257 Switching Characteristics
over recommended operating free air temperature range
DM74AS258 Switching Characteristics
over recommended operating free air temperature range
Symbol
Parameter
From
To
Conditions
Min
Max
Units
t
PLH
Propagation Delay Time,
LOW-to-HIGH Level Output
Propagation Delay Time,
Data
Any
Y
V
CC
=
4.5V to 5.5V,
C
L
=
50 pF,
R
L
=
500
1
5.5
ns
t
PHL
1
6
ns
HIGH-to-LOW Level Output
Propagation Delay Time,
LOW-to-HIGH Level Output
t
PLH
Select
Any
Y
2
11
ns
t
PHL
Propagation Delay Time,
HIGH-to-LOW Level Output
2
10
ns
t
PZH
Output Enable Time to
HIGH Level
OUTPUT
Control
Any
Y
2
7.5
ns
t
PZL
Output Enable Time to
LOW Level
2
9.5
ns
t
PHZ
Output Disable Time,
from HIGH Level
OUTPUT
Control
Any
Y
1.5
6.5
ns
t
PLZ
Output Disable Time,
from LOW Level
2
7
ns
Symbol
Parameter
From
To
Conditions
Min
Max
Units
t
PLH
Propagation Delay Time,
LOW-to-HIGH Level Output
Propagation Delay Time,
Data
Any
Y
V
CC
=
4.5V to 5.5V,
C
L
=
50 pF,
R
L
=
500
1
5
ns
t
PHL
1
4
ns
HIGH-to-LOW Level Output
Propagation Delay Time,
LOW-to-HIGH Level Output
t
PLH
Select
Any
Y
2
9.5
ns
t
PHL
Propagation Delay Time,
HIGH-to-LOW Level Output
2
10
ns
t
PZH
Output Enable Time to
HIGH Level
OUTPUT
Control
Any
Y
2
8
ns
t
PZL
Output Enable Time to
LOW Level
2
10
ns
t
PHZ
Output Disable Time,
from HIGH Level
OUTPUT
Control
Any
Y
1.5
6
ns
t
PLZ
Output Disable Time,
from LOW Level
2
6.5
ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM74AS257N | 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers |
| DM74AS258M | 10-Bit Bus Transceiver With 3-State Outputs 24-SOIC -40 to 85 |
| DM74AS258N | 10-Bit Bus Transceiver With 3-State Outputs 24-SOIC -40 to 85 |
| DM74AS257MX | 2-Input Digital Multiplexer |
| DM74AS258MX | 8-Input Digital Multiplexer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74AS257M_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult 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 |
| DM74AS257MX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult 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 |
| DM74AS257N | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult 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 |
| DM74AS257N_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Qd Sel/Mult 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 |
| DM74AS257SJ | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Selector/Multiplexer Quad Line Data 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 |
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