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74LCXZ16245 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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74LCXZ16245 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 7 page © 2005 Fairchild Semiconductor Corporation DS500580 www.fairchildsemi.com March 2002 Revised June 2005 74LCXZ16245 Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs General Description The LCXZ16245 contains sixteen non-inverting bidirec- tional buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low volt- age (2.7V or 3.3V) VCC applications with capability of inter- facing to a 5V signal environment. The device is byte controlled. Each byte has separate control inputs which could be shorted together for full 16-bit operation. The T/R inputs determine the direction of data flow through the device. The OE inputs disable both the A and B ports by placing them in a high impedance state. When VCC is between 0V and 1.5V, the LCXZ16245 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. The LCXZ16245 is fabricated with an advanced CMOS technology to achieve high speed operation while maintain- ing CMOS low power dissipation. Features s 5V tolerant inputs and outputs s 2.7V–3.6V VCC specifications provided s 4.5 ns tPD max (VCC 3.3V), 20 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 conforms to the requirements of JESD78 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. Logic Symbol Order Number Package Number Package Description 74LCXZ16245MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide |
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