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Número de pieza | HC253 | |
Descripción | Dual 4-Input Data Selector/Multiplexer with 3-State Otputs | |
Fabricantes | System Logic Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de HC253 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
No Preview Available ! SL74HC253
Dual 4-Input Data Selector/Multiplexer
with 3-State Otputs
High-Performance Silicon-Gate CMOS
The SL74HC253 is identical in pinout to the LS/ALS253. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
The Address Inputs select one of four Data Inputs from each
multiplexer. Each multiplexer has an active-low Output Enable control
and a three-state noninverting output.
• 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
SL74HC253N Plastic
SL74HC253D SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 16 =VCC
PIN 8 = GND
FUNCTION TABLE
Inputs
Output
A1 A0 OE
Y
XX
H
Z
LL
L
D0
LH
L
D1
HL
L
D2
HH
L
D3
D0,D1...D3=the level of the respective
Data Input
Z = high impedance
X = don’t care
SLS
System Logic
Semiconductor
1 page SL74HC253
Figure 3. Test Circuit
Figure 4. Test Circuit
EXPANDED LOGIC DIAGRAM
SLS
System Logic
Semiconductor
5 Page |
Páginas | Total 5 Páginas | |
PDF Descargar | [ Datasheet HC253.PDF ] |
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