CD74HCT257E
ActiveHIGH SPEED CMOS LOGIC QUAD 2-INPUT MULTIPLEXERS WITH NON-INVERTING 3-STATE OUTPUTS
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CD74HCT257E
ActiveHIGH SPEED CMOS LOGIC QUAD 2-INPUT MULTIPLEXERS WITH NON-INVERTING 3-STATE OUTPUTS
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Technical Specifications
Parameters and characteristics for this part
| Specification | CD74HCT257E |
|---|---|
| Circuit [custom] | 4 |
| Circuit [custom] | 2:1 |
| Current - Output High, Low [custom] | 6 mA |
| Current - Output High, Low [custom] | 6 mA |
| Independent Circuits | 1 |
| Mounting Type | Through Hole |
| Operating Temperature [Max] | 125 °C |
| Operating Temperature [Min] | -55 °C |
| Package / Case | 0.3 in |
| Package / Case | 16-DIP |
| Package / Case | 7.62 mm |
| Supplier Device Package | 16-PDIP |
| Type | Multiplexer |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 4.5 V |
| Voltage Supply Source | Single Supply |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 0.65 | |
| 10 | $ 0.58 | |||
| 25 | $ 0.55 | |||
| 100 | $ 0.45 | |||
| 250 | $ 0.42 | |||
| 500 | $ 0.37 | |||
| 1000 | $ 0.34 | |||
| 2500 | $ 0.45 | |||
| 5000 | $ 0.44 | |||
| Texas Instruments | TUBE | 1 | $ 0.79 | |
| 100 | $ 0.60 | |||
| 250 | $ 0.45 | |||
| 1000 | $ 0.32 | |||
Description
General part information
CD74HCT257 Series
The ’HC257 and ’HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select Input (S). The Output Enable input (OE\) is active LOW. When OE\ is HIGH, all of the outputs (1Y-4Y) are in the high impedance state regardless of all other input conditions.
Moving data from two groups of registers to four common output buses is a common use of the 257. The state of the Select input determines the particular register from which the data comes. It can also be used as a function generator.
The ’HC257 and ’HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select Input (S). The Output Enable input (OE\) is active LOW. When OE\ is HIGH, all of the outputs (1Y-4Y) are in the high impedance state regardless of all other input conditions.
Documents
Technical documentation and resources
