M74HC238RM13TR Datasheet

Logic - Signal Switches, Multiplexers, Decoders


The M74HC238( M74HC238RM13TR ) is an high speed CMOS 3 TO 8 LINE DECODER fabricated with silicon gate C2MOS technology. If the device is enabled, 3 binary select inputs (A, B and C) determine which one of outputs will go high. When enable input G1 is held "Low" or either G2A or G2B is held "High" decoding function is inhibited and all the 8 outputs go low. Three enable inputs are provided to ease cascade connection and application of this address decoder in memory systems. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M74HC238RM13TR Features • HIGH SPEED: tPD = 15ns (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 = 4mA (MIN)• BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL• WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V• PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 238


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