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SN74LS245 Datasheet(PDF) 1 Page - ON Semiconductor |
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SN74LS245 Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 4 page © Semiconductor Components Industries, LLC, 2000 August, 2000 – Rev. 7 1 Publication Order Number: SN74LS245/D SN74LS245 Octal Bus Transceiver The SN74LS245 is an Octal Bus Transmitter/Receiver designed for 8-line asynchronous 2-way data communication between data buses. Direction Input (DR) controls transmission of Data from bus A to bus B or bus B to bus A depending upon its logic level. The Enable input (E) can be used to isolate the buses. • Hysteresis Inputs to Improve Noise Immunity • 2-Way Asynchronous Data Bus Communication • Input Diodes Limit High-Speed Termination Effects • ESD > 3500 Volts LOGIC AND CONNECTION DIAGRAMS DIP (TOP VIEW) 18 17 16 15 14 13 12 3 4 5 6 7 20 19 8 VCC DIR E B1 B2 B3 B5 B4 B6 A1 A2 A3 A4 A5 A6 A7 910 A8 GND 12 11 B7 B8 TRUTH TABLE INPUTS OUTPUT E DIR OUTPUT L L Bus B Data to Bus A L H Bus A Data to Bus B H X Isolation H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage 4.75 5.0 5.25 V TA Operating Ambient Temperature Range 0 25 70 °C IOH Output Current – High –3.0 mA –15 mA IOL Output Current – Low 24 mA LOW POWER SCHOTTKY Device Package Shipping ORDERING INFORMATION SN74LS245N PDIP–20 1440 Units/Box SN74LS245DW SOIC–20 http://onsemi.com 2500/Tape & Reel PDIP–20 N SUFFIX CASE 738 20 1 20 1 A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week SN74LS245N AWLYYWW MARKING DIAGRAMS LS245 AWLYYWW SOIC–20 DW SUFFIX CASE 751D 1 1 |
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