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SN74LV138A - 3-Line to 8-Line Decoders or Demultiplexers

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General Description

The SN74LV138A device is 3-line to 8-line decoders/ demultiplexers designed for 2 V to 5.5 V VCC operation.

The conditions at the binary-select inputs (A0, A1, A2) and the three enable inputs (G2, G0, G1) select one of eight output lines.

The two active-low (G0, G1) and one active-high (G2) enable inputs reduce the need for external gates or inverters when expanding.

Overview

SN74LV138A SCLS395N – APRIL 1998 – REVISED MARCH 2023 SN74LV138A 3-Line to 8-Line Decoders or Demultiplexers.

Key Features

  • VCC operation of 2 V to 5.5 V.
  • Maximum tpd of 9.5 ns at 5 V.
  • Typical VOLP (output ground bounce) 2.3 V at VCC = 3.3 V, TA = 25°C.
  • Support mixed-mode voltage operation on all ports.
  • Ioff supports partial-power-down mode operation.
  • Latch-up performance exceeds 250 mA per JESD 17 2.

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