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KK74ACT258 fiches techniques PDF

KODENSHI KOREA - Quad 2-Input Data Selector/Multiplexer

Numéro de référence KK74ACT258
Description Quad 2-Input Data Selector/Multiplexer
Fabricant KODENSHI KOREA 
Logo KODENSHI KOREA 





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KK74ACT258 fiche technique
Quad 2-Input Data Selector/Multiplexer
with 3-State Outputs
High-Speed Silicon-Gate CMOS
TECHNICAL DATA
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KK74ACT258
The KK74ACT258 is identical in pinout to the LS/ALS258,
HC/HCT258. The KK74ACT258 may be used as a level converter for
interfacing TTL or NMOS outputs to High Speed CMOS inputs.
This device selects a (4-bit) nibble from either the A or B inputs as
determined by the Select input. The nibble is presented at the outputs in
inverted from when the Output Enable pin is at a low level. A high level
on the Output Enable pin switches the outputs into the high-impedance
state.
TTL/NMOS Compatible Input Levels
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 4.5 to 5.5 V
Low Input Current: 1.0 µA; 0.1 µA @ 25°C
Outputs Source/Sink 24 mA
ORDERING INFORMATION
KK74ACT258N Plastic
KK74ACT258D SOIC
TA = -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16 =VCC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
Output
Enable
Select Y0-Y3
H XZ
L L A0-A3
L H B0-B3
X=don’t care
Z = high-impedance state
A0-A3,B0-B3=the levels of the respective
Nibble Inputs
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