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This literature is subject to all applicable copyright laws and is not for resale in any manner.74LCXH245 Low Voltage Bidirectional Transceiver with Bushold October 2000 Revised September 2001 74LCXH245 Low Voltage Bidirectional Transceiver with Bushold General Description Features The LCXH245 contains eight non-inverting bidirectional 5V tolerant control inputs buffers with 3-STATE outputs and is intended for bus ori- 2.3V3.6V V specifications provided CC ented applications. The device is designed for low voltage 7.0 ns t max (V = 3.3V), 10 A I max PD CC CC (2.5V and 3.3V) V applications. The T/R input deter- CC Power down high impedance outputs mines the direction of data flow through the device. The OE input disables both the A and B ports by placing them in a 24 mA output drive (V = 3.0V) CC high impedance state. Implements patented noise/EMI reduction circuitry The LCXH245 is fabricated with an advanced CMOS tech- Latch-up performance exceeds 500 mA nology to achieve high speed operation while maintaining Bushold on inputs eliminates the need for external CMOS low power dissipation. The LCXH16244 data inputs pull-up/pull-down resistors include active bushold circuitry, eliminating the need for external pull-up resistors to hold unused or floating data ESD performance: inputs at a valid logic level. Human body model > 2000V Machine model > 200V Ordering Code: Order Number Package Number Package Description 74LCXH245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 74LCXH245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LCXH245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 74LCXH245MTC 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. Logic Symbol Connection Diagram Pin Descriptions Pin Names Description OE Output Enable Input T/R Transmit/Receive Input A A Side A Inputs or 3-STATE Outputs (Bushold) 0 7 B B Side B Inputs or 3-STATE Outputs (Bushold) 0 7 GTO is a trademark of Fairchild Semiconductor Corporation. 2001 Fairchild Semiconductor Corporation DS500363 www.fairchildsemi.com