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华端智慧电子
This octal bus transceiver is designed for synchronous two-way communication between data buses. The control function implementation minimizes external timing requirements. The device allows data transmission from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction control (DIR) input. The enable input (G) can be used to disable the device so that the buses are effectively isolated.
Ordering Information
Part Name Package Type Package Code (Previous Code) Package Abbreviation Taping Abbreviation (Quantity) HD74LS245P DILP-20 pin PRDP0020AC-B (DP-20NEV) P — HD74LS245FPEL SOP-20 pin (JEITA) PRSP0020DD-B (FP-20DAV) FP EL (2,000 pcs/reel) HD74LS245RPEL SOP-20 pin (JEDEC) PRSP0020DC-A (FP-20DBV) RP EL (1,000 pcs/reel) Pin Arrangement Function Table Enable G Direction Control DIR Operation L L B data to A bus L H A data to B bus H X Isolation Absolute Maximum Ratings Item Symbol Ratings Unit Supply voltage VCC 7 V Input voltage DIR, G VIN 7 V A, B VIN 5.5 V Power dissipation PT 400 mW Storage temperature Tstg –65 to +150 °C Operating temperature Topr –20 to +75 °C
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