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SN74LV8T138-EP
  • SN74LV8T138-EP
  • SN74LV8T138-EP

SN74LV8T138-EP

ACTIVE

Enhanced-product three-line to eight-line decoders/demultiplexers

Texas Instruments SN74LV8T138-EP Product Info

1 April 2026 0

Parameters

Number of channels

8

Operating temperature range (°C)

-55 to 125

Rating

HiRel Enhanced Product

Package

TSSOP (PW)-16-32 mm² 5 x 6.4

Features

  • Wide operating range of 1.65V to 5.5V
  • 5.5V tolerant input pins
  • Single-supply voltage translator (refer to LVxT Enhanced Input Voltage):
    • Up translation:
      • 1.2V to 1.8V
      • 1.5V to 2.5V
      • 1.8V to 3.3V
      • 3.3V to 5.0V

    • Down translation:

      • 5.0V, 3.3V, 2.5V to 1.8V
      • 5.0V, 3.3V to 2.5V
      • 5.0V to 3.3V
  • Up to 150Mbps with 5V or 3.3V VCC
  • Supports standard function pinout
  • Latch-up performance exceeds 250mAper JESD 17
  • Supports defense and aerospace applications:
    • Controlled baseline
    • One assembly and test site
    • One fabrication site
    • Extended product life cycle
    • Product traceability
  • Wide operating range of 1.65V to 5.5V
  • 5.5V tolerant input pins
  • Single-supply voltage translator (refer to LVxT Enhanced Input Voltage):
    • Up translation:
      • 1.2V to 1.8V
      • 1.5V to 2.5V
      • 1.8V to 3.3V
      • 3.3V to 5.0V

    • Down translation:

      • 5.0V, 3.3V, 2.5V to 1.8V
      • 5.0V, 3.3V to 2.5V
      • 5.0V to 3.3V
  • Up to 150Mbps with 5V or 3.3V VCC
  • Supports standard function pinout
  • Latch-up performance exceeds 250mAper JESD 17
  • Supports defense and aerospace applications:
    • Controlled baseline
    • One assembly and test site
    • One fabrication site
    • Extended product life cycle
    • Product traceability

Description

The SN74LV8T138-EP is a three to eight decoder with one standard output strobe (G2) and two active low output strobes (G1 and G0). When the outputs are gated by any of the strobe inputs, they are all forced into the high state. When the outputs are not disabled by the strobe inputs, only the selected output is low while all others are high. The output level is referenced to the supply voltage (VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS levels.

The input is designed with a lower threshold circuit to support up translation for lower voltage CMOS inputs (for example, 1.2V input to 1.8V output or 1.8V input to 3.3V output). In addition, the 5V tolerant input pins enable down translation (for example, 3.3V to 2.5V output).

The SN74LV8T138-EP is a three to eight decoder with one standard output strobe (G2) and two active low output strobes (G1 and G0). When the outputs are gated by any of the strobe inputs, they are all forced into the high state. When the outputs are not disabled by the strobe inputs, only the selected output is low while all others are high. The output level is referenced to the supply voltage (VCC) and supports 1.8V, 2.5V, 3.3V, and 5V CMOS levels.

The input is designed with a lower threshold circuit to support up translation for lower voltage CMOS inputs (for example, 1.2V input to 1.8V output or 1.8V input to 3.3V output). In addition, the 5V tolerant input pins enable down translation (for example, 3.3V to 2.5V output).

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