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74LVX245SJ bảng dữ liệu(PDF) 1 Page - Fairchild Semiconductor |
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74LVX245SJ bảng dữ liệu(HTML) 1 Page - Fairchild Semiconductor |
1 / 6 page © 2005 Fairchild Semiconductor Corporation DS011597 www.fairchildsemi.com April 1993 Revised April 2005 74LVX245 Low Voltage Octal Bidirectional Transceiver General Description The LVX245 contains eight non-inverting bidirectional buff- ers and is intended for bus-oriented applications. The Transmit/Receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a high impedance condi- tion. Features s Ideal for low power/low noise 3.3V applications s Guaranteed simultaneous switching noise level and dynamic threshold performance Ordering Code Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Pb-Free package per JEDEC J-STD-020B. Logic Symbols Connection Diagram Pin Descriptions Truth Table H HIGH Voltage Level X Immaterial L LOW Voltage Level Order Number Package Number Package Description 74LVX245M M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LVX245SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LVX245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pin Description Names 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 B Data to Bus A L H Bus A Data to Bus B HX HIGH-Z State |
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