DESCRIPTION
The 54HC540 is an advanced high-speed CMOS OCTAL BUS BUFFER (3-STATE) fabricated with silicon C2MOS technology.

■ HIGH SPEED:
   tPD = 9ns (TYP.) at VCC = 6V
■ LOW POWER DISSIPATION:
   ICC = 4µA(MAX.) at TA=25°C
■ HIGH NOISE IMMUNITY:
   VNIH = VNIL = 28% VCC (MIN.)
■ SYMMETRICAL OUTPUT IMPEDANCE:
   |IOH| = IOL = 6mA (MIN)
■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL
■ WIDE OPERATING VOLTAGE RANGE:
   VCC (OPR) = 2V to 6V
■ PIN AND FUNCTION COMPATIBLE WITH
   54 SERIES 540
■ SPACE GRADE-1: ESA SCC QUALIFIED
■ 50 krad QUALIFIED, 100 krad AVAILABLE ON
   REQUEST
■ NO SEL UNDER HIGH LET HEAVY IONS
   IRRADIATION
■ DEVICE FULLY COMPLIANT WITH
   SCC-9401-049