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參數(shù)資料
| 型號(hào)： | DM74AS258 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers |
| 中文描述： | 三態(tài)四2線數(shù)據(jù)選擇1 /多路復(fù)用器 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 291K |
| 代理商： | DM74AS258 |
tm
D
May 2007
1986 Fairchild Semiconductor Corporation
DM74AS257, DM74AS258 Rev. 1.2
www.fairchildsemi.com
DM74AS257, DM74AS258
3-STATE Quad 1 of 2 Line Data Selector/Multiplexers
Features
■
Switching specifications at 50pF
Switching specifications guaranteed over full
temperature and V
CC
range
Advanced oxide-isolated, ion-implanted Schottky
TTL process
Functionally and pin for pin compatible with Schottky,
low power Schottky, and advanced low power
Schottky TTL counterpart
Improved AC performance over Schottky, low power
Schottky, and advanced low power Schottky
counterparts
3-STATE buffer-type output drive bus lines directly
Expand any data input point
Multiplex dual data buses
General four functions of two variables (one variable
is common)
Source programmable counters
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■
■
■
■
■
■
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■
General Description
These data selectors/multiplexers contain inverters and
drivers to supply full on-chip data selection to the four
3-STATE outputs that can interface directly with data
lines of bus-organized systems. A 4-bit word selected
from one of two sources is routed to the four outputs.
The DM74AS257 presents true data whereas the
DM74AS258 presents inverted data to minimize propa-
gation delay time.
This 3-STATE output feature means that n-bit (paral-
leled) data selectors with up to 300 sources can be
implemented for data buses. It also permits the use of
standard TTL registers for data retention throughout the
system.
Ordering Information
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering number.
Order
Number
DM74AS257M
DM74AS257N
DM74AS258M
Package
Number
M16A
N16E
M16A
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM74LS02 | Quad 2-Input NOR Gate |
| DM74LS02M | Quad 2-Input NOR Gate |
| DM74LS02N | Quad 2-Input NOR Gate |
| DM74LS02SJ | Replaced by OPA129 : |
| DM74LS02MX | Quad 2-input NOR Gate |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74AS258M | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Inv 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 |
| DM74AS258M_Q | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Inv 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 |
| DM74AS258MX | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Inv 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 |
| DM74AS258N | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 3-STATE Inv 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 |
| DM74AS258N 90 | 制造商:National Semiconductor 功能描述:74AS258N |
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