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DM74ALS253N Datasheet

  • DM74ALS253N

  • 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer

  • 5頁

  • FAIRCHILD

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DM74ALS253 3-STATE Dual 1-of-4 Line Data Selector/Multiplexer
April 1984
Revised February 2000
DM74ALS253
3-STATE Dual 1-of-4 Line Data Selector/Multiplexer
General Description
This Data Selector/Multiplexer contains full on-chip decod-
ing to select one-of-four data sources as a result of a
unique two-bit binary code at the Select Inputs. Each of the
two Data Selector/Multiplexer circuits have their own sepa-
rate Data and Output Control inputs and a non-inverting 3-
STATE output buffer. The Output Control inputs, when at
the high level, place the corresponding output in the high
impedance OFF-State. In order to prevent bus access con-
flicts, output disable times are shorter than output enable
times. The Select input buffers incorporate internal overlap
features to ensure that select input changes do not cause
invalid output transients.
Features
s
Advanced oxide-isolated, ion-implanted Schottky TTL
process
s
Switching performance is guaranteed over full tempera-
ture and V
CC
supply range
s
Pin and functional compatible with LS family counterpart
s
Improved output transient handling capability
s
Output control circuitry incorporates power-up 3-STATE
feature
Ordering Code:
Order Number
DM74ALS253M
DM74ALS253N
Package Number
M16A
N16E
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
Devices also available in Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Connection Diagram
Function Table
Select
Inputs
B
X
L
L
L
L
H
H
H
H
A
X
L
L
H
H
L
L
H
H
C0
X
L
H
X
X
X
X
X
X
C1
X
X
X
L
H
X
X
X
X
C2
X
X
X
X
X
L
H
X
X
C3
X
X
X
X
X
X
X
L
H
Data Inputs
Output
Control
G
H
L
L
L
L
L
L
L
L
Y
Z
L
H
L
H
L
H
L
H
Output
Address inputs A and B are common to both sections
H
=
HIGH Level
L
=
LOW Level
X
=
Don't Care
Z
=
High Impedance
漏 2000 Fairchild Semiconductor Corporation
DS006215
www.fairchildsemi.com

DM74ALS253N 產(chǎn)品屬性

  • 500

  • 集成電路 (IC)

  • 邏輯 - 信號開關(guān)，多路復(fù)用器，解碼器

  • 74ALS

  • 數(shù)據(jù)選擇器/多路復(fù)用器

  • 2 x 4:1

  • 1

  • 2.6mA，24mA

  • 單電源

  • 4.5 V ~ 5.5 V

  • 0°C ~ 70°C

  • 通孔

  • 16-DIP（0.300"，7.62mm）

  • 16-DIP

  • 管件

  • 74ALS253

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