SN54LS245

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SN54LS245, SN74LS245 SDLS146B – OCTOBER 1976 – REVISED SEPTEMBER 2016 SNx4LS245 Octal Bus Transceivers With 3-State Outputs 1 Features 1 3-State Outputs Drive Bus Lines Directly PNP Inputs Reduce DC Loading on Bus Lines Hysteresis at Bus Inputs Improves Noise Margins Typical Propagation Delay Times Port to Port, 8 ns 2 Applications Building Automation Electronic Point of Sale Factory Automation and Control Test and Measurement 3 Description These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. The SNx4LS245 devices allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the directioncontrol (DIR) input. The output-enable (OE) input can disable the device so that the buses are effectively isolated. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) SN54LS245J CDIP (20) 24.20 mm × 6.92 mm SN54LS245W CFP (20) 7.02 mm × 13.72 mm SN54LS245FK LCCC (20) 8.89 mm × 8.89 mm SN74LS245DB SSOP (20) 7.20 mm × 5.30 mm SN74LS245DW SOIC (20) 12.80 mm × 7.50 mm SN74LS245N PDIP (20) 24.33 mm × 6.35 mm SN74LS245NS SO (20) 12.60 mm × 5.30 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Logic Diagram (Positive Logic) 1 DIR 19 OE 2 A1...