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SL74LS157 数据表(PDF) 1 Page - System Logic Semiconductor |
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SL74LS157 数据表(HTML) 1 Page - System Logic Semiconductor |
1 / 3 page SL74LS157 System Logic Semiconductor SLS Quad 2-Input Data Selector/Multiplexer This monolitic data selector/multiplexer contains inverters and drivers to supply full on-chip data selection to the four o utput gates. A separate strobe input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The LS157 has the same functions and pin connections as the LS257 but the latter is provided with 3-state outputs. • Buffered Inputs and Outputs • Common Strobe/Select input for all 4 circuits ORDERING INFORMATION SL74LS157N Plastic SL74LS157D SOIC TA =0 ° to 70° C for all packages FUNCTION TABLE Inputs Outputs Output Enable Select Y0-Y3 H X L L L A0-A3 L H B0-B3 X=don’t care A0-A3,B0-B3=the levels of the respective Data-Word Inputs LOGIC DIAGRAM PIN 16 =VCC PIN 8 = GND PIN ASSIGNMENT |
类似零件编号 - SL74LS157 |
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类似说明 - SL74LS157 |
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