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This literature is subject to all applicable copyright laws and is not for resale in any manner.74LCX16501 Low Voltage 18-Bit Universal Bus Transceivers with 5V Tolerant Inputs and Outputs October 1995 Revised March 2001 74LCX16501 Low Voltage 18-Bit Universal Bus Transceivers with 5V Tolerant Inputs and Outputs General Description Features The LCX16501 is an 18-bit universal bus transceiver com- 5V tolerant inputs and outputs bining D-type latches and D-type flip-flops to allow data 2.3V3.6V V specifications provided CC flow in transparent, latched, and clocked modes. 6.0 ns t max (V = 3.3V), 20 A I max PD CC CC Data flow in each direction is controlled by output-enable Power down high impedance inputs and outputs (OEAB and OEBA), latch-enable (LEAB and LEBA), and clock (CLKAB and CLKBA) inputs. Supports live insertion/withdrawal (Note 1) The LCX16501 is designed for low voltage (2.5V or 3.3V) 24 mA Output Drive (V = 3.0V) CC V applications with capability of interfacing to a 5V signal CC Implements patented noise/EMI reduction circuitry environment. Latch-up performance exceeds 500 mA The LCX16501 is fabricated with an advanced CMOS tech- ESD performance: nology to achieve high speed operation while maintaining Human body model > 2000V CMOS low power. Machine model < 200V Note 1: To ensure the high-impedance state during power up or down, OE should be tied to V and OE tied to GND through a resistor: the minimum CC value or the resistor is determined by the current-sourcing capability of the driver. Ordering Code: Order Number Package Number Package Description 74LCX16501MEA MS56A 56-Lead Shrink Small Outline Package (SSOP), JEDEC MO-118, 0.300 Wide 74LCX16501MTD MTD56 56-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide Devices also available on Tape and Reel. Specify by appending the suffix letter X to the ordering code. 2001 Fairchild Semiconductor Corporation DS012550 www.fairchildsemi.com