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DG534AAP/883 Datasheet(PDF) 3 Page - Vishay Siliconix |
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DG534AAP/883 Datasheet(HTML) 3 Page - Vishay Siliconix |
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3 / 16 page ![]() DG534A/538A Vishay Siliconix Document Number: 70069 S-05734—Rev. G, 29-Jan-02 www.vishay.com 3 TRUTH TABLE DG538A I/O A2 A1 A0 EN WR RS 8/4a On Switch X X X X X 1 1 Maintains previous state X X X X X X 0 X None (latches cleared) X X X X 0 0 1 X None 0 0 0 0 1 0 1 0 SA1 0 0 0 1 1 0 1 0 SA2 0 0 1 0 1 0 1 0 SA3 0 0 1 1 1 0 1 0 SA4 DA and DB should be 0 1 0 0 1 0 1 0 SB1 DA and DB should be connected externally 0 1 0 1 1 0 1 0 SB2 Latches Transparent 0 1 1 0 1 0 1 0 SB3 0 1 1 1 1 0 1 0 SB4 0 X 0 0 1 0 1 1 SA1 and SB1 0 X 0 1 1 0 1 1 SA2 and SB2 0 X 1 0 1 0 1 1 SA3 and SB3 0 X 1 1 1 0 1 1 SA4 and SB4 1 Note b 1 1 Note c Logic “0” = VAL v 0.8 V Logic “1” = VAH w 2 V X = Don’t Care Notes: a. Connect DA and DB together externally for single-ended operation. b. With I/O high, An and EN pins become outputs and reflect latch contents. See timing diagrams for more detail. c. 8/4 can be either “1” or “0” but should not change during these operations. ORDERING INFORMATION Temperature Range Package Part Number DG534A _ 20-Pin Plastic DIP DG534ADJ –40 to 85 _C 20-Pin PLCC DG534ADN –55 to 125 _C 20-Pin Sidebraze DG534AAP/883, 5962-906021MRC DG538A _ 28-Pin Plastic DIP DG538ADJ –40 to 85 _C 28-Pin PLCC DG538ADN –55 to 125 _C 28-Pin Sidebraze DG538AAP/883, 5962-8976001MXA |
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