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参数资料
| 型号： | DM74AS258 |
| 厂商： | Fairchild Semiconductor Corporation |
| 英文描述： | 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers |
| 中文描述： | 三态四2线数据选择1 /多路复用器 |
| 文件页数： | 1/8页 |
| 文件大小： | 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
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DM74AS258M | 功能描述:编码器、解码器、复用器和解复用器 3-STATE Inv Sel/Mul RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| DM74AS258M_Q | 功能描述:编码器、解码器、复用器和解复用器 3-STATE Inv Sel/Mul RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| DM74AS258MX | 功能描述:编码器、解码器、复用器和解复用器 3-STATE Inv Sel/Mul RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| DM74AS258N | 功能描述:编码器、解码器、复用器和解复用器 3-STATE Inv Sel/Mul RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| DM74AS258N 90 | 制造商:National Semiconductor 功能描述:74AS258N |
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