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SL74HC251 8-Input Data Selector/Multiplexer with 3-State Outputs High-Performance Silicon-Gate CMOS The SL74HC251 is identical in pinout to the LS/ALS251. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The device selects one of the eight binary Data Inputs, as determined by the .
L L H H L L H H A0 X L H L H L H L H OE H L L L L L L L L Outputs Y Z D0 D1 D2 D3 D4 D5 D6 D7 Y Z D0 D1 D2 D3 D4 D5 D6 D7
D0,D1...D7=the level of the respective D input Z = high-impedance state X = don’t care
SLS
System Logic Semiconductor
SL74HC251
MAXIMUM RATINGS
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Symbol VCC VIN VOUT IIN IOUT ICC PD Tstg TL
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Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Current, per Pin DC Supply Current, VCC and GND Pins Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ Storage T.
| No. | Partie # | Fabricant | Description | Fiche Technique |
|---|---|---|---|---|
| 1 | SL74HC253 |
System Logic Semiconductor |
Dual 4-Input Data Selector/Multiplexer with 3-State Otputs |
|
| 2 | SL74HC257 |
System Logic Semiconductor |
Quad 2-Input Data Selector/Multiplexer with 3-State Outputs |
|
| 3 | SL74HC258 |
System Logic Semiconductor |
Quad 2-Input Data Selectors/Multiplexer with 3-State Outputs |
|
| 4 | SL74HC20 |
System Logic Semiconductor |
Dual 4-Input NAND Gate |
|
| 5 | SL74HC221 |
System Logic Semiconductor |
Dual Monostable Multivibrator |
|
| 6 | SL74HC240 |
System Logic Semiconductor |
Octal 3-State Inverting Buffer/Line Driver/Line Receiver |
|
| 7 | SL74HC241 |
System Logic Semiconductor |
Octal 3-State Noninverting Buffer/Line Driver/Line Receiver |
|
| 8 | SL74HC244 |
System Logic Semiconductor |
Octal 3-State Noninverting Buffer/Line Driver/Line Receiver |
|
| 9 | SL74HC245 |
System Logic Semiconductor |
Octal 3-State Noninverting Bus Transceiver |
|
| 10 | SL74HC273 |
System Logic Semiconductor |
Octal D Flip-Flop with Common Clock and Reset |
|
| 11 | SL74HC299 |
System Logic Semiconductor |
8-Bit Bidirectional Universal Shift Register with Parallel I/O |
|
| 12 | SL74HC00 |
System Logic Semiconductor |
Quad 2-Input NAND Gate |
|