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Número de pieza | SL74HC258 | |
Descripción | Quad 2-Input Data Selectors/Multiplexer with 3-State Outputs | |
Fabricantes | System Logic Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de SL74HC258 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
No Preview Available ! SL74HC258
Quad 2-Input Data Selectors/Multiplexer
with 3-State Outputs
High-Performance Silicon-Gate CMOS
The SL74HC258 is identical in pinout to the LS/ALS258. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
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 form 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.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
SL74HC258N Plastic
SL74HC258D SOIC
TA = -55° to 125° 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
SLS
System Logic
Semiconductor
1 page SL74HC258
Figure 3. Switching Waveforms
Figure 4. Test Circuit
Figure 5. Test Circuit
EXPANDED LOGIC DIAGRAM
SLS
System Logic
Semiconductor
5 Page |
Páginas | Total 6 Páginas | |
PDF Descargar | [ Datasheet SL74HC258.PDF ] |
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