SN74BCT25642 Datasheet | Texas Instruments

Features Open-Collector Outputs That Provide 188-m A 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 munication 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-m A 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 address drivers, clock drivers, and bus-oriented transceivers. The distributed VCC and GND pins minimize the noise generated by the simultaneous switching of the outputs. The SN74BCT25642 is characterized for operation from 0°C to 70°C. FUNCTION TABLE INPUTS OE DIR OPERATION B data to A bus H A data to B bus Isolation PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright  1993, Texas Instruments Incorporated - POST OFFICE BOX 655303 DALLAS, TEXAS 75265 - POST OFFICE BOX 1443 HOUSTON, TEXAS 77251- 1443 2- 1 SN74BCT25642 25ĆΩ OCTAL BUS TRANSCEIVER ą SCBS047C - DECEMBER...