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74LCXZ245MSA Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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74LCXZ245MSA Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 10 page © 2005 Fairchild Semiconductor Corporation DS500362 www.fairchildsemi.com October 2000 Revised March 2005 74LCXZ245 Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs General Description The 74LCXZ245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus ori- ented applications. The device is designed for low voltage (2.5V and 3.3V) VCC applications with capability of interfac- ing to a 5V signal environment. The T/R input determines the direction of data flow through the device. The OE input disables both the A and B ports by placing them in a high impedance state. The 74LCXZ245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintain- ing CMOS low power dissipation. When VCC is between 0V and 1.5V, the 74LCXZ245 is on the high impedance state during power up or power down. This places the outputs in the high impedance (Z) state preventing intermittent low impedance loading or glitching in bus oriented applications. Features s 5V tolerant inputs and outputs s 2.3V–3.6V VCC specifications provided s 7.0 ns tPD max (VCC 3.3V), 10 PA ICC max s Power down high impedance inputs and outputs s Supports live insertion/withdrawal (Note 1) s r24 mA output drive (VCC 3.0V) s Implements patented noise/EMI reduction circuitry s Latch-up performance exceeds 500 mA s ESD performance: Human body model ! 2000V Machine model ! 200V Note 1: To ensure the high-impedance state during power up or down, OE should be tied to VCC through a pull-up resistor: the minimum value or the resistor is determined by the current-sourcing capability of the driver. 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 Symbol Pin Descriptions Connection Diagram Order Number Package Number Package Description 74LCXZ245WM M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74LCXZ245SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74LCXZ245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), JEDEC MO-150, 5.3mm Wide 74LCXZ245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 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 |
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