Features: · ICC and IOZ reduced by 50%· Multiplexer expansion by tying outputs together· Noninverting 3-STATE outputs· Outputs source/sink 24 mA· ACT257 has TTL-compatible inputsPinoutSpecificationsSupply Voltage (VCC)...................... −0.5V to +7.0VDC Input Diode Current (IIK)VI = W...
74ACT257: Features: · ICC and IOZ reduced by 50%· Multiplexer expansion by tying outputs together· Noninverting 3-STATE outputs· Outputs source/sink 24 mA· ACT257 has TTL-compatible inputsPinoutSpecifications...
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The 74ACT257 is a quad 2-input multiplexer with 3- 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 of the 74ACT257 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.