MC74F240- (MC74F240 - MC74F244) OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS FAST SCHOTTKY TTL
MC74F241- (MC74F240 - MC74F244) OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS FAST SCHOTTKY TTL
MC74F242- (MC74F242 / MC74F243) QUAD BUS TRANSCEIVERS WITH 3-STATE OUTPUTS FAST SCHOTTKY TTL
MC74F243- (MC74F242 / MC74F243) QUAD BUS TRANSCEIVERS WITH 3-STATE OUTPUTS FAST SCHOTTKY TTL
MC74F244- (MC74F240 - MC74F244) OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS FAST SCHOTTKY TTL
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DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
The MC54/74F253 is a Dual 4-Input Multiplexer with 3-State Outputs. It can select two bits of data from four sources using common select inputs. The outputs may be individually switched to a high-impedance state with a HIGH on the respective Output Enable (OE) inputs, allowing the outputs to interface directly with bus-oriented systems.