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54ACT257 데이터시트(PDF) 1 Page - Texas Instruments

부품명 54ACT257
상세설명  Quad 2-Input Multiplexer with TRI-STATE Outputs
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OBSOLETE
54AC257, 54ACT257
www.ti.com
SNOS102B – JULY 1998 – REVISED APRIL 2013
54AC257 • 54ACT257 Quad 2-Input Multiplexer with TRI-STATE Outputs
Check for Samples: 54AC257, 54ACT257
1
FEATURES
DESCRIPTION
The 'AC/'ACT257 is a quad 2-input multiplexer with
23
ICC and IOZ Reduced by 50%
TRI-STATE outputs. Four bits of data from two
Multiplexer Expansion by Tying Outputs
sources can be selected using a Common Data
Together
Select input. The four outputs present the selected
Noninverting TRI-STATE Outputs
data in true (noninverted) form. The outputs may be
switched to a high impedance state by placing a logic
Outputs Source/Sink 24 mA
HIGH on the common Output Enable (OE) input,
'ACT257 has TTL-Compatible Inputs
allowing the outputs to interface directly with bus-
Standard Military Drawing (SMD)
oriented systems.
'AC257: 5962-88703
'ACT257: 5962-89689
Logic Symbols
IEEE/IEC
Figure 1.
Figure 2.
PIN DESCRIPTION
Pin Names
Description
S
Common Data Select Input
OE
TRI-STATE Output Enable Input
I0a–I0d
Data Inputs from Source 0
I1a–I1d
Data Inputs from Source 1
Za–Zd
TRI-STATE Multiplexer Outputs
1
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.
2
FACT is a trademark of Fairchild Semiconductor.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 1998–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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