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This literature is subject to all applicable copyright laws and is not for resale in any manner.74LCXZ16245 Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs March 2002 Revised June 2005 74LCXZ16245 Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs and Outputs General Description Features The LCXZ16245 contains sixteen non-inverting bidirec- 5V tolerant inputs and outputs tional buffers with 3-STATE outputs and is intended for bus 2.7V3.6V V specifications provided CC oriented applications. The device is designed for low volt- 4.5 ns t max (V 3.3V), 20 PA I max PD CC CC age (2.7V or 3.3V) V applications with capability of inter- CC Power-down high impedance inputs and outputs facing to a 5V signal environment. The device is byte controlled. Each byte has separate control inputs which Supports live insertion/withdrawal (Note 1) could be shorted together for full 16-bit operation. The T/R r24 mA output drive (V 3.0V) CC inputs determine the direction of data flow through the Implements patented noise/EMI reduction circuitry device. The OE inputs disable both the A and B ports by placing them in a high impedance state. Latch-up performance conforms to the requirements of JESD78 When V is between 0V and 1.5V, the LCXZ16245 is on CC ESD performance: the high impedance state during power-up or power-down. This places the outputs in the high impedance (Z) state Human body model 2000V preventing intermittent low impedance loading or glitching Machine model 200V in bus oriented applications. Note 1: To ensure the high-impedance state during power up or down, OE The LCXZ16245 is fabricated with an advanced CMOS should be tied to V through a pull-up resistor: the minimum value or the CC technology to achieve high speed operation while maintain- resistor is determined by the current-sourcing capability of the driver. ing CMOS low power dissipation. Ordering Code: Order Number Package Number Package Description 74LCXZ16245MTD MTD48 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices also available in Tape and Reel. Specify by appending the suffix letter X to the ordering code. Logic Symbol 2005 Fairchild Semiconductor Corporation DS500580 www.fairchildsemi.com