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74LCX245BQX 数据表(PDF) 2 Page - Fairchild Semiconductor |
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74LCX245BQX 数据表(HTML) 2 Page - Fairchild Semiconductor |
2 / 12 page www.fairchildsemi.com 2 Logic Symbol Pin Descriptions Truth Table H HIGH Voltage Level L LOW Voltage Level X Immaterial Z High Impedance Note 5: Unused bus terminals during HIGH Z State must be held HIGH or LOW. Connection Diagrams Pin Assignments for SOIC, SOP, SSOP, and TSSOP Pin Assignment for DQFN (Top Through View) Logic Diagram Pin Names Description OE Output Enable Input T/R Transmit/Receive Input A0–A7 Side A Inputs or 3-STATE Outputs B0–B7 Side B Inputs or 3-STATE Outputs Inputs Outputs OE T/R L L Bus B0 – B7 Data to Bus A0 – A7 L H Bus A0 – A7 Data to Bus B0 – B7 H X HIGH Z State on A0 – A7, B0 – B7 (Note 5) |
类似零件编号 - 74LCX245BQX |
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类似说明 - 74LCX245BQX |
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