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ON Semiconductor - DUAL 4-INPUT MULTIPLEXER

Numéro de référence MC74AC253
Description DUAL 4-INPUT MULTIPLEXER
Fabricant ON Semiconductor 
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MC74AC253 fiche technique
MC74AC253, MC74ACT253
Dual 4-Input Multiplexer
with 3-State Outputs
The MC74AC253/74ACT253 is a dual 4−input multiplexer with
3−state outputs. It can select two bits of data from four sources using
common select inputs. The outputs may be individually switched to a
high impedance state with a HIGH on the respective Output Enable
(OE) inputs, allowing the outputs to interface directly with bus
oriented systems.
Multifunctional Capability
Noninverting 3−State Outputs
Outputs Source/Sink 24 mA
ACT253 Has TTL Compatible Inputs
These are Pb−Free Devices
VCC OEb S0 I3b I2b I1b I0b Zb
16 15 14 13 12 11 10 9
12345678
OEa S1 I3a I2a I1a I0a Za GND
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
PIN NAME
PIN
I0a−I3a
I0b−I3b
S0, S1
OEa
OEb
Za, Zb
FUNCTION
Side A Data Inputs
Side B Data Inputs
Common Select Inputs
Side A Output Enable Input
Side B Output Enable Input
3−State Outputs
www.onsemi.com
16
1
16
1
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
1
xxx253G
AWLYWW
TSSOP−16
DT SUFFIX
CASE 948F
16
xxx
253
ALYWG
G
1
xxx = AC or ACT
A = Assembly Location
WL or L = Wafer Lot
Y = Year
WW or W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 7 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
March, 2015 − Rev. 7
1
Publication Order Number:
MC74AC253/D

PagesPages 9
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