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54157DMQB
EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn 器件描述：Quad 2-Line to 1-Line Data Selectors/Multiplexers 器件厂商：NSC [National Semiconductor] 厂商主页：http://www.national.com 文件大小：118.05KB 文件页数：6 PDF阅读：54157DMQB.pdf (点击阅读器件资料) 摘要： TL/F/6550 54157/DM54157/DM74157 Quad 2-Line to 1-Line Data Selectors/Multiplexers June 1989 54157/DM54157/DM74157 Quad 2-Line to 1-Line Data Selectors/Multiplexers General Description These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four out- put gates. A separate strobe input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. Applications Y Expand any data input point Y Multiplex dual data buses Y Generate four functions of two variables (one variable is common) Y Source programmable counters Features Y Buffered inputs and outputs Y Typical propagation time 9 ns Y Typical power dissipation 150 mW Y Alternate Military/Aerospace device (54157) is avail- able. Contact a National Semiconductor Sales Office/ Distributor for specifications. Connection Diagram Dual-In-Line Package TL/F/6550–1 Order Number 54157DMQB, 54157FMQB, DM54157J, DM54157W or DM74157N See NS Package Number J16A, N16E or W16A Function Table Inputs Output Y Strobe Select A B HXXXL LLL HXH LHXLL HH HeHigh Level, L e Low Level, X e Don’t Care C 1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A. 相关器件：DM74157N DM54157W DM54157J 54157FMQB 54157 74157

54157DMQB

EEWorld咨询电话：82357002，82350740－8068 邮件咨询：datasheet@eeworld.com.cn

器件描述：Quad 2-Line to 1-Line Data Selectors/Multiplexers
器件厂商：NSC [National Semiconductor]
厂商主页：http://www.national.com
文件大小：118.05KB
文件页数：6
PDF阅读：54157DMQB.pdf (点击阅读器件资料)

摘要：
TL/F/6550
54157/DM54157/DM74157
Quad
2-Line
to
1-Line
Data
Selectors/Multiplexers
June 1989
54157/DM54157/DM74157
Quad 2-Line to 1-Line Data Selectors/Multiplexers
General Description
These data selectors/multiplexers contain inverters and
drivers to supply full on-chip data selection to the four out-
put gates. A separate strobe input is provided. A 4-bit word
is selected from one of two sources and is routed to the four
outputs.
Applications
Y
Expand any data input point
Y
Multiplex dual data buses
Y
Generate four functions of two variables (one variable
is common)
Y
Source programmable counters
Features
Y
Buffered inputs and outputs
Y
Typical propagation time 9 ns
Y
Typical power dissipation 150 mW
Y
Alternate Military/Aerospace device (54157) is avail-
able. Contact a National Semiconductor Sales Office/
Distributor for specifications.
Connection Diagram
Dual-In-Line Package
TL/F/6550–1
Order Number 54157DMQB, 54157FMQB, DM54157J, DM54157W or DM74157N
See NS Package Number J16A, N16E or W16A
Function Table
Inputs
Output Y
Strobe Select A B
HXXXL
LLL
HXH
LHXLL
HH
HeHigh Level, L e Low Level, X e Don’t Care
C
1995 National Semiconductor Corporation RRD-B30M105/Printed in U. S. A.

相关器件：DM74157N DM54157W DM54157J 54157FMQB 54157 74157

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