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74AC540 Datasheet(PDF) 1 Page - Fairchild Semiconductor |
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74AC540 Datasheet(HTML) 1 Page - Fairchild Semiconductor |
1 / 7 page © 2005 Fairchild Semiconductor Corporation Ds009966 www.fairchildsemi.com November 1988 Revised March 2005 74AC540 Octal Buffer/Line Driver with 3-STATE Outputs General Description The AC540 is an octal buffer/line drivers designed to be employed as memory and address drivers, clock drivers and bus oriented transmitter/receivers. These devices are similar in function to the AC240 while providing flow-through architecture (inputs on opposite side from outputs). This pinout arrangement makes these devices especially useful as output ports for microproces- sors, allowing ease of layout and greater PC board density. Features s ICC and IOZ reduced by 50% s 3-STATE inverting outputs s Inputs and outputs opposite side of package, allowing easier interface to microprocessors s Output source/sink 24 mA Ordering Code: Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code. Pb-Free package per JEDEC J-STD-020B. Logic Symbol IEEE/IEC Connection Diagram Truth Table H HIGH Voltage Level X Immaterial L LOW Voltage Level Z High Impedance FACT ¥ is a trademark of Fairchild Semiconductor Corporation. Order Number Package Number Package Description 74AC540SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74AC540SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74AC540MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74AC540PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Inputs Outputs OE1 OE2 I LL H L HXX Z XHX Z LLL H |
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