View m74hc253 datasheet:

M74HC253 DUAL 4 CHANNEL MULTIPLEXER 3 STATE OUTPUT HIGH SPEED: tPD = 16ns (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 = 4mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ? tPHL ORDER CODES WIDE OPERATING VOLTAGE RANGE: PACKAGE TUBE T & R VCC (OPR) = 2V to 6V DIP M74HC253B1R PIN AND FUNCTION COMPATIBLE WITH SOP M74HC253M1R M74HC253RM13TR 74 SERIES 253 TSSOP M74HC253TTR DESCRIPTION The M74HC253 is an high speed CMOS DUAL 4 (nG) can be used to inhibit the data output; the CHANNEL MULTIPLEXER fabricated with silicon output of M74HC253 is a high impedance while gate C2MOS technology. the strobe input is held high. Each of these dat