SN74LVC138ADR
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Texas Instruments SN74LVC138ADR

Manufacturer No:
SN74LVC138ADR
Manufacturer:
Texas Instruments
Package:
Tape & Reel (TR)
Description:
IC DECODER/DEMUX 1X3:8 16SOIC
Delivery:
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Product Introduction

Overview

The SN74LVC138ADR from Texas Instruments is a 3-Line to 8-Line decoder/demultiplexer designed for high-performance memory-decoding or data-routing applications. This device operates within a voltage range of 1.65 V to 3.6 V, making it versatile for various system environments. It is particularly useful in high-speed memory systems where it minimizes the effects of system decoding, ensuring that the effective system delay introduced by the decoder is negligible when used with fast enable circuits and high-speed memories.

Key Specifications

Parameter Value Unit
Package 16-SOIC (0.154", 3.90mm Width)
Pins 16
Operating Temperature Range -40°C to 85°C °C
Voltage Supply Range 1.65 V to 3.6 V V
Input Voltage Range -0.5 V to 6.5 V V
Output Voltage Range -0.5 V to VCC + 0.5 V V
Propagation Delay Time (tpd) 5.8 ns at VCC = 3.3 V, TA = 25°C ns
Output High Current (IOH) -24 mA mA
Output Low Current (IOL) 24 mA mA
ESD Protection Exceeds 2000 V per MIL-STD-883, Method 3015 V

Key Features

  • Operates from 1.65 V to 3.6 V, allowing use in a wide range of voltage environments.
  • Inputs accept voltages up to 5.5 V, making it compatible with both 3.3-V and 5-V systems.
  • Very short propagation delay times, with a maximum tpd of 5.8 ns at VCC = 3.3 V and TA = 25°C.
  • Typical output ground bounce (VOLP) < 0.8 V and output overshoot (VOHV) > 2 V at VCC = 3.3 V and TA = 25°C.
  • Latch-up performance exceeds 250 mA per JESD 17.
  • ESD protection exceeds 2000 V per MIL-STD-883, Method 3015.

Applications

The SN74LVC138ADR is designed for high-performance memory-decoding or data-routing applications. It is particularly useful in:

  • High-speed memory systems where it minimizes system decoding delays.[
  • Mixed 3.3-V/5-V system environments, acting as a voltage translator.[
  • Demultiplexing applications where an enable input can be used as a data input.[

Q & A

  1. What is the primary function of the SN74LVC138ADR?

    The SN74LVC138ADR is a 3-Line to 8-Line decoder/demultiplexer, designed for high-performance memory-decoding or data-routing applications.

  2. What is the operating voltage range of the SN74LVC138ADR?

    The device operates from 1.65 V to 3.6 V.

  3. What is the maximum propagation delay time of the SN74LVC138ADR?

    The maximum propagation delay time (tpd) is 5.8 ns at VCC = 3.3 V and TA = 25°C.

  4. Can the SN74LVC138ADR be used in mixed voltage systems?

    Yes, the device can be used in mixed 3.3-V/5-V system environments, acting as a voltage translator.

  5. What is the ESD protection level of the SN74LVC138ADR?

    The ESD protection exceeds 2000 V per MIL-STD-883, Method 3015.

  6. What is the operating temperature range of the SN74LVC138ADR?

    The operating temperature range is -40°C to 85°C.[

  7. How many output lines does the SN74LVC138ADR have?

    The device has eight output lines.

  8. Can the SN74LVC138ADR be used for demultiplexing applications?

    Yes, an enable input can be used as a data input for demultiplexing applications.[

  9. What is the package type of the SN74LVC138ADR?

    The device is packaged in a 16-pin SOIC (D) package.[

  10. Does the SN74LVC138ADR have latch-up protection?

    Yes, the latch-up performance exceeds 250 mA per JESD 17.[

Product Attributes

Type:Decoder/Demultiplexer
Circuit:1 x 3:8
Independent Circuits:1
Current - Output High, Low:24mA, 24mA
Voltage Supply Source:Single Supply
Voltage - Supply:1.65V ~ 3.6V
Operating Temperature:-40°C ~ 85°C
Mounting Type:Surface Mount
Package / Case:16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:16-SOIC
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Similar Products

Part Number SN74LVC138ADR SN74LVC139ADR SN74LVC138ADT SN74LV138ADR SN74LVC138AD SN74LVC138ADBR
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Product Status Active Active Active Active Active Active
Type Decoder/Demultiplexer Decoder/Demultiplexer Decoder/Demultiplexer Decoder/Demultiplexer Decoder/Demultiplexer Decoder/Demultiplexer
Circuit 1 x 3:8 1 x 2:4 1 x 3:8 1 x 3:8 1 x 3:8 1 x 3:8
Independent Circuits 1 2 1 1 1 1
Current - Output High, Low 24mA, 24mA 24mA, 24mA 24mA, 24mA 12mA, 12mA 24mA, 24mA 24mA, 24mA
Voltage Supply Source Single Supply Single Supply Single Supply Single Supply Single Supply Single Supply
Voltage - Supply 1.65V ~ 3.6V 1.65V ~ 3.6V 1.65V ~ 3.6V 2V ~ 5.5V 1.65V ~ 3.6V 1.65V ~ 3.6V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 16-SOIC (0.154", 3.90mm Width) 16-SOIC (0.154", 3.90mm Width) 16-SOIC (0.154", 3.90mm Width) 16-SOIC (0.154", 3.90mm Width) 16-SOIC (0.154", 3.90mm Width) 16-SSOP (0.209", 5.30mm Width)
Supplier Device Package 16-SOIC 16-SOIC 16-SOIC 16-SOIC 16-SOIC 16-SSOP

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