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PDF KK74AC157 Data sheet ( Hoja de datos )
| Número de pieza | KK74AC157 | |
| Descripción | Quad 2-Input Data Selector/Multiplexer High-Speed Silicon-Gate CMOS | |
| Fabricantes | KODENSHI KOREA | |
| Logotipo |  |
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TECHNICAL DATA
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Quad 2-Input Data Selector/Multiplexer
High-Speed Silicon-Gate CMOS
KK74AC157
The KK74AC157 is identical in pinout to the LS/ALS157,
HC/HCT157. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS outputs.
This device routes 2 nibbles (A or B) to a single port (Y) as
determined by the Select input. The data is presented at the outputs in
noninvertered form. A high level on the Output Enable input sets all four
Y outputs to a low level.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA; 0.1µA @ 25°C
• High Noise Immunity Characteristic of CMOS Devices
• Outputs Source/Sink 24 mA
ORDERING INFORMATION
KK74AC157N Plastic
KK74AC157D SOIC
TA = -40° to 85° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 16 =VCC
PIN 8 = GND
FUNCTION TABLE
Inputs
Outputs
Output
Enable
Select Y0-Y3
H XL
L L A0-A3
L H B0-B3
X=don’t care
A0-A3,B0-B3=the levels of the respective
Data-Word Inputs
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1 page  
KK74AC157
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EXPANDED LOGIC DIAGRAM
A0 B0
A1 B1 A2 B2 A3 B3 OE SELECT
Y0 Y1 Y2
Y3
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5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet KK74AC157.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| KK74AC151 | 8-Input Data Selector/Multiplexer High-Speed Silicon-Gate CMOS | KODENSHI KOREA |
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| KK74AC157 | Quad 2-Input Data Selector/Multiplexer High-Speed Silicon-Gate CMOS | KODENSHI KOREA |
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