SN74BCT25642

State-of-the-Art BiCMOS Design Significantly Reduces ICCZ 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 Ω or Greater Distributed VCC and GND Pins Minimize Noise Generated by the Simultaneous Switching of Outputs The A Port Features Open-Collector Outputs That Provide 188-mA IOL 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) SN74BCT25642 25ĆΩ OCTAL BUS TRANSCEIVER ą SCBS047C − DECEMBER 1989 − REVISED NOVEMBER 1993 DW OR NT PACKAGE (TOP VIEW) A1 1 GND 2 A2 3 A3 4 GND 5 A4 6 A5 7 GND 8 A6 9 A7 10 GND 11 A8 12 24 DIR 23 B1 22 B2 21 VCC 20 B3 19 B4 18 B5 17 B6 16 VCC 15 B7 14 B8 13 OE description This 25-Ω octal bus transceiver is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated. The SN74BCT25642 is capable of sinking 188-mA IOL (A port), which facilitates switching 25-Ω transmission lines on the incident wave. It is designed specifically to improve both the performance and density of 3-state memory addres...