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74VHCT238A Datasheet 3 To 8 Line Decoder

Manufacturer: STMicroelectronics

Overview: ® 74VHCT238A 3 TO 8 LINE DECODER s s s s s s s s s HIGH SPEED: tPD = 8 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION: ICC = 4 µA (MAX.) at TA = 25 oC PATIBLE WITH TTL OUTPUTS: VIH = 2V (MIN), VIL = 0.8V (MAX) POWER DOWN PROTECTION ON INPUTS & OUTPUTS SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 8 mA (MIN) BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL OPERATING VOLTAGE RANGE: VCC (OPR) = 4.5V to 5.

General Description

The 74VHCT238A is an advanced high-speed CMOS 3 TO 8 LINE DECODER fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology.

If the device is enabled, 3 binary select inputs (A, B and C) determine which one of the outputs will go high.

If enable input G1 is held low or either G2A or G2B is held high, decoding function is inhibited and all the 8 outputs go to low.

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