SN74AS257D
ActiveQUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
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SN74AS257D
ActiveQUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
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Technical Specifications
Parameters and characteristics for this part
| Specification | SN74AS257D |
|---|---|
| Circuit [custom] | 4 |
| Circuit [custom] | 2:1 |
| Current - Output High, Low [custom] | 15 mA |
| Current - Output High, Low [custom] | 48 mA |
| Independent Circuits | 1 |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Package / Case | 16-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Supplier Device Package | 16-SOIC |
| 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 | 400 | $ 2.35 | |
| Texas Instruments | TUBE | 1 | $ 2.92 | |
| 100 | $ 2.56 | |||
| 250 | $ 1.79 | |||
| 1000 | $ 1.44 | |||
Description
General part information
SN74AS257 Series
These data selectors/multiplexers are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable () input is at a high logic level.
The SN54ALS257A and SN54ALS258A are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS257A, SN74ALS258A, SN74AS257, and SN74AS258 are characterized for operation from 0°C to 70°C.
These data selectors/multiplexers are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable () input is at a high logic level.
Documents
Technical documentation and resources
