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HD74HC257 Dataheets PDF



Part Number HD74HC257
Manufacturers Renesas
Logo Renesas
Description Quad. 2-to-1-line Data Selectors/Multiplexers
Datasheet HD74HC257 DatasheetHD74HC257 Datasheet (PDF)

HD74HC257 Quad. 2-to-1-line Data Selectors/Multiplexers (with noninverted 3-state outputs) REJ03D0601–0200 (Previous ADE-205-478) Rev.2.00 Jan 31, 2006 Description The large output drive capability coupled with the 3-state feature make this device ideal for interfacing with bus lines in a bus organized system. When the output control input line is taken high, the outputs of all four multiplexers are sent into a high impedance state. When the output control line is low, the select input choose.

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HD74HC257 Quad. 2-to-1-line Data Selectors/Multiplexers (with noninverted 3-state outputs) REJ03D0601–0200 (Previous ADE-205-478) Rev.2.00 Jan 31, 2006 Description The large output drive capability coupled with the 3-state feature make this device ideal for interfacing with bus lines in a bus organized system. When the output control input line is taken high, the outputs of all four multiplexers are sent into a high impedance state. When the output control line is low, the select input chooses whether the A or B input is used. Features • High Speed Operation: tpd (Data to Y) = 10.5 ns typ (CL = 50 pF) • High Output Current: Fanout of 15 LSTTL Loads • Wide Operating Voltage: VCC = 2 to 6 V • Low Input Current: 1 µA max • Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) • Ordering Information Part Name Package Type Package Code (Previous Code) Package Abbreviation HD74HC257P DILP-16 pin PRDP0016AE-B (DP-16FV) P HD74HC257FPEL SOP-16 pin (J.


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