74VHC27 Datasheet (STMicroelectronics) - TRIPLE 3-INPUT NOR GATE

74VHC27, TRIPLE 3-INPUT NOR GATE

The 74VHC27 is an advanced high-speed CMOS TRIPLE 3-INPUT NOR GATE fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.

The internal circuit is composed of 3 stages PIN CONNECTION AND IEC LOGIC SYMBOLS June 1999 1/7 74VHC27 INPUT EQUIVALENT CIRCUIT PIN DESCRIPT

® 74VHC27 TRIPLE 3-INPUT NOR GATE PRELIMINARY DATA s s s s s s s s s HIGH SPEED: tPD = 4.1 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 2 µA (MAX.) at TA = 25 oC HIGH NOISE IMMUNITY: VNIH = VNIL = 28% VCC (MIN.) POWER DOWN PROTECTION ON INPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 5.5V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 27 IMPROVED LATCH-UP IMMUNITY M (Micro Package) T (T