SN74LS257BDR
ActiveQUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
SN74LS257BDR
ActiveQUADRUPLE 2-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
Description
General part information
74LS257 Series
These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G\) is at a high-logic level.
Series 54LS and 54S are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74LS and 74S are characterized for operation from 0°C to 70°C.
These devices are designed to multiplex signals from four-bit data sources to four-output data lines in bus-organized systems. The 3-state outputs will not load the data lines when the output control pin (G\) is at a high-logic level.
Technical Specifications
Parameters and characteristics for this part
| Specification | SN74LS257BDR |
|---|---|
| Circuit | 4 x 2:1 |
| Current - Output High | 2.6 mA |
| Current - Output Low | 24 mA |
| Independent Circuits | 1 |
| Mounting Type | Surface Mount |
| Operating Temperature (Max) | 70 °C |
| Operating Temperature (Min) | 0 °C |
| Package Length | 0.154 in |
| Package Name | 16-SOIC |
| Package Width | 3.9 mm |
| Type | Multiplexer |
| Voltage - Supply (Maximum) | 5.25 V |
| Voltage - Supply (Minimum) | 4.75 V |
| Voltage Supply Source | Single Supply |
Pricing
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