View m74hc258 datasheet:

M74HC258 QUAD 2 CHANNEL MULTIPLEXER (3-STATE, INVERTING) HIGH SPEED : tPD = 11 ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC =4µA(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = VNIL = 28 % VCC (MIN.) DIP SOP TSSOP SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 6mA (MIN) BALANCED PROPAGATION DELAYS: ORDER CODES tPLH ? tPHL PACKAGE TUBE T & R WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V DIP M74HC258B1R PIN AND FUNCTION COMPATIBLE WITH SOP M74HC258M1R M74HC258RM13TR 74 SERIES 258 TSSOP M74HC258TTR DESCRIPTION When the ENABLE INPUT (OE) is held "High", The M74HC258 is an high speed CMOS QUAD 2 outputs of the IC become High-Impedance state. If CHANNEL MULTIPLEXER (3-STATE) fabricated SELECT INPUT is held "LOW", "A" data is with silicon gate C2MOS technol