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This literature is subject to all applicable copyright laws and is not for resale in any manner.74LVX245 Low Voltage Octal Bidirectional Transceiver April 1993 Revised April 2005 74LVX245 Low Voltage Octal Bidirectional Transceiver General Description Features The LVX245 contains eight non-inverting bidirectional buff- Ideal for low power/low noise 3.3V applications ers and is intended for bus-oriented applications. The Guaranteed simultaneous switching noise level and Transmit/Receive (T/R) input determines the direction of dynamic threshold performance 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. Ordering Code 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 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 Pin Inputs Description Outputs Names OE T/R OE Output Enable Input L L Bus B Data to Bus A T/R Transmit/Receive Input L H Bus A Data to Bus B A A Side A Inputs or 3-STATE Outputs HX HIGH-Z State 0 7 H HIGH Voltage Level X Immaterial B B Side B Inputs or 3-STATE Outputs 0 7 L LOW Voltage Level 2005 Fairchild Semiconductor Corporation DS011597 www.fairchildsemi.com