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CD74AC238M96E4 Folha de dados(PDF) 1 Page - Texas Instruments

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Nome de Peças CD74AC238M96E4
Descrição Electrónicos  3-LINE TO 8-LINE DECODER/DEMULTIPLEXER
Download  14 Pages
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Fabricante Electrônico  TI1 [Texas Instruments]
Página de início  http://www.ti.com
Logo TI1 - Texas Instruments

CD74AC238M96E4 Folha de dados(HTML) 1 Page - Texas Instruments

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CD74AC238
3-LINE TO 8-LINE DECODER/DEMULTIPLEXER
SCHS331 – FEBRUARY 2003
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D AC Types Feature 1.5-V to 5.5-V Operation
and Balanced Noise Immunity at 30% of the
Supply Voltage
D Speed of Bipolar F, AS, and S, With
Significantly Reduced Power Consumption
D Designed Specifically for High-Speed
Memory Decoders and Data-Transmission
Systems
D Incorporates Three Enable Inputs to
Simplify Cascading and/or Data Reception
D Balanced Propagation Delays
D ±24-mA Output Drive Current
– Fanout to 15 F Devices
D SCR-Latchup-Resistant CMOS Process and
Circuit Design
D Exceeds 2-kV ESD Protection Per
MIL-STD-883, Method 3015
description/ordering information
The CD74AC238 decoder/demultiplexer is designed for high-performance memory-decoding and data-routing
applications that require very short propagation-delay times. In high-performance memory systems, this
decoder can be used to minimize the effects of system decoding. When employed with high-speed memories
utilizing a fast enable circuit, the delay times of this decoder and the enable time of the memory usually are less
than the typical access time of the memory. This means that the effective system delay introduced by the
decoder is negligible.
The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two
active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding.
A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one
inverter. An enable input can be used as a data input for demultiplexing applications (see Application
Information).
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
–55
°C to 125°C
SOIC – M
Tape and reel
CD74AC238M96
AC238M
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Copyright
 2003, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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8
16
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14
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11
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9
A
B
C
G2A
G2B
G1
Y7
GND
VCC
Y0
Y1
Y2
Y3
Y4
Y5
Y6
M PACKAGE
(TOP VIEW)


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