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HD74HC257 - Quad. 2-to-1-line Data Selectors/Multiplexers(with noninverted 3-state outputs)
FST32253QSC - Dual 4:1 Multiplexer/Demultiplexer Bus Switch with 25 Series Resistor in Outputs
MAU122 - 1 Watt Ultra Miniature SIP DC/DC Converters Single and Dual Outputs
PI74AVC+16345A - 2.5V/ Registered 1-Bit to 4-Bit Address Driver w/3-State Outputs