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54ACT257L Datasheet

Part NameDescriptionManufacturer
54ACT257L Quad 2-Input Multiplexer with TRI-STATE® Outputs National-Semiconductor
National ->Texas Instruments National-Semiconductor
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General Description
The ’AC/’ACT257 is a quad 2-input multiplexer with TRI-STATE outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the common Output Enable (OE) input, allowing the outputs to interface directly with bus-oriented systems.

Features
■ ICC and IOZ reduced by 50%
■ Multiplexer expansion by tying outputs together
■ Noninverting TRI-STATE outputs
■ Outputs source/sink 24 mA
■ ’ACT257 has TTL-compatible inputs
■ Standard Military Drawing (SMD)
   — ’AC257: 5962-88703
   — ’ACT257: 5962-89689

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