CD74HCT258

CD54HCT258, CD74HCT258 QUADRUPLE 2-LINE TO 1-LINE SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS SCHS276A – MAY 2003 D 4.5-V to 5.5-V VCC Operation D Wide Operating Temperature Range of –55°C to 125°C D Balanced Propagation Delays and Transition Times D Standard Outputs Drive Up To 10 LS-TTL Loads D Significant Power Reduction Compared to LS-TTL Logic ICs D Inputs Are TTL-Voltage Compatible CD54HCT258 . . . F PACKAGE CD74HCT258 . . . E PACKAGE (TOP VIEW) A/B 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8 16 VCC 15 G 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y description/ordering information These devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G) input is at a high logic level. To ensure the high-impedance state during power up or power down, G should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP – E –55°C to 125°C CDIP – F Tube Tube CD74HCT258E CD74HCT258E CD54HCT258F3A CD54HCT258F3A † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS G A/B A OUTPUT B Y H X X X Z L L L X H L L H X L L H X L H L H X H L Please be aware that an importa...