SN74BCT25642 25- OCTAL BUSTRANSCEIVER

SCBS047C - DECEMBER 1989 - REVISED NOVEMBER 1993

features

• State-of-the-Art BiCMOS Design Significantly Reduces I_CCZ
• ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
• Designed to Facilitate Incident-Wave Switching for Line Impedances of 25-or Greater
• Distributed V_CC and GND Pins Minimize Noise Generated by the Simultaneous Switching of Outputs
• The A Port Features Open-Collector Outputs That Provide 188-mA I_OL to Allow for Heavy DC Loading on Open-Collector Outputs
• Eliminates Need for 3-State Overlap Protection on A Ports
• Package Options Include Plastic Small-Outline (DW) Packages and Standard Plastic 300-mil DIPs (NT)

description

This 25-octal bustransceiver is designed for asynchronous communication between databuses. The device transmits data from the A bus to the B bus or fromthe B bus to the A bus depending upon the level at thedirection-control (DIR) input. The output-enable () input can be used to disable thedevice so the buses are effectively isolated.

The SN74BCT25642 is capable of sinking 188-mA I_OL (Aport), which facilitates switching 25- transmission lines on the incident wave. It is designedspecifically to improve both the performance and density of 3-statememory address drivers, clock drivers, and bus-oriented transceivers.The distributed V_CC and GND pins minimize the noisegenerated by the simultaneous switching of the outputs.

The SN74BCT25642 is characterized for operation from 0°C to70°C.

View more information about generic part numbers:SN74BCT25642

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