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SN74LVC257ADT Datasheet(PDF) 1 Page - Texas Instruments |
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SN74LVC257ADT Datasheet(HTML) 1 Page - Texas Instruments |
1 / 30 page 4Y 3Y 2Y 1Y A/B OE 4B 4A 3B 3A 2B 2A 1B 1A 4 2 3 7 5 6 9 11 10 12 14 13 1 15 Product Folder Sample & Buy Technical Documents Tools & Software Support & Community SN54LVC257A, SN74LVC257A SCAS294O – JANUARY 1993 – REVISED JUNE 2015 SNx4LVC257A Quadruple 2-Line to 1-Line Data Selectors and Multiplexers With 3-State Outputs 1 Features 3 Description These quadruple 2-line to 1-line data selectors and 1 • Operate From 1.65 V to 3.6 V multiplexers are designed for 1.65-V to 3.6-V VCC • Inputs Accept Voltages to 5.5 V operation. • Maximum tpd of 4.6 ns at 3.3 V The SNx4LVC257A devices are designed to multiplex • Typical VOLP (Output Ground Bounce) signals from 4-bit data sources to 4-output data lines <0.8 V at VCC = 3.3 V, TA = 25°C in bus-organized systems. The 3-state outputs do not • Typical VOHV (Output VOH Undershoot) load the data lines when the output-enable (OE) input >2 V at VCC = 3.3 V, TA = 25°C is at a high logic level. • Latch-Up Performance Exceeds 250 mA Per Inputs can be driven from either 3.3-V or 5-V devices. JESD 17 This feature allows the use of these devices as translators in a mixed 3.3-V or 5-V system • ESD Protection Exceeds JESD 22 environment. – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) Device Information(1) • On Products Compliant to MIL-PRF-38535, All PART NUMBER PACKAGE BODY SIZE (NOM) Parameters Are Tested Unless Otherwise Noted. VQFN (16) 3.50 mm × 4.00 mm On All Other Products, Production Processing SOIC (16) 9.90 mm × 3.91 mm Does Not Necessarily Include Testing of All SN74LVC257A SO (16) 10.30 mm × 5.30 mm Parameters. SSOP (16) 5.50 mm × 6.20 mm TSSOP (16) 4.40 mm × 5.00 mm 2 Applications CDIP (16) 6.92 mm × 21.34 mm • Cable Modem Termination Systems SN54LVC257A CFP (16) 10.30 mm × 6.73 mm • Tests and Measurements LCCC (20) 8.89 mm × 8.89 mm • I/O Expanders (1) For all available packages, see the orderable addendum at • Motor Drivers the end of the data sheet. • Network Switches • Servers • Telecom Infrastructure Logic Diagram (Positive Logic) Pin numbers shown are for the D, DB, J, NS, PW , RGY , and W packages. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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