Datasheets
SN74AHCT138DBR by: Texas Instruments

3-Line to 8-Line Decoder / Demultiplexer 16-SSOP -40 to 85

Part Details for SN74AHCT138DBR by Texas Instruments

Results Overview of SN74AHCT138DBR by Texas Instruments

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SN74AHCT138DBR Information

SN74AHCT138DBR by Texas Instruments is a Decoder/Driver.
Decoder/Drivers are under the broader part category of Logic Components.

Digital logic governs the behavior of signals in electronic circuits, enabling complex decisions based on simple binary inputs (yes/no). Logic components perform operations from these signals. Read more about Logic Components on our Logic part category page.

Available Datasheets

Part # Manufacturer Description Datasheet
SN74AHCT138DBR Texas Instruments 3-Line to 8-Line Decoder / Demultiplexer 16-SSOP -40 to 85

Price & Stock for SN74AHCT138DBR

Part # Distributor Description Stock Price Buy
DISTI # 296-4664-1-ND
DigiKey IC DECODER/DEMUX 1X3:8 16SSOP Min Qty: 1 Lead time: 6 Weeks Container: Digi-Reel®, Cut Tape (CT), Tape & Reel (TR) 3992
In Stock
  • 1 $0.3200
  • 10 $0.2220
  • 25 $0.1976
  • 100 $0.1700
  • 250 $0.1569
  • 500 $0.1490
  • 1,000 $0.1425
  • 2,000 $0.1700
  • 4,000 $0.1648
  • 6,000 $0.1621
  • 10,000 $0.1592
  • 14,000 $0.1575
  • 20,000 $0.1559
  • 50,000 $0.1523
$0.1425 / $0.3200 Buy Now
DISTI # 595-SN74AHCT138DBR
Mouser Electronics Encoders, Decoders, Multiplexers & Demultiplexers Line Decoder RoHS: Compliant 3057
  • 1 $0.3200
  • 10 $0.1980
  • 100 $0.1570
  • 500 $0.1490
  • 1,000 $0.1430
  • 2,000 $0.1390
$0.1390 / $0.3200 Buy Now
Bristol Electronics   Min Qty: 13 1680
  • 13 $0.4125
  • 50 $0.2681
  • 188 $0.1547
  • 648 $0.1320
  • 1,403 $0.1155
$0.1155 / $0.4125 Buy Now
Velocity Electronics Our Stock 1000
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Part Details for SN74AHCT138DBR

SN74AHCT138DBR CAD Models

SN74AHCT138DBR Part Data Attributes

SN74AHCT138DBR Texas Instruments
Buy Now Datasheet
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SN74AHCT138DBR Texas Instruments 3-Line to 8-Line Decoder / Demultiplexer 16-SSOP -40 to 85
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC
Part Package Code SOIC
Pin Count 16
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Samacsys Manufacturer Texas Instruments
Additional Feature 3 ENABLE INPUTS
Family AHCT/VHCT/VT
Input Conditioning STANDARD
JESD-30 Code R-PDSO-G16
JESD-609 Code e4
Length 6.2 mm
Load Capacitance (CL) 50 pF
Logic IC Type 3-LINE TO 8-LINE DECODER
Max I(ol) 0.008 A
Moisture Sensitivity Level 1
Number of Bits 8
Number of Functions 1
Number of Terminals 16
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Output Characteristics 3-STATE
Output Polarity INVERTED
Package Body Material PLASTIC/EPOXY
Package Code SSOP
Package Equivalence Code SSOP16,.3
Package Shape RECTANGULAR
Package Style SMALL OUTLINE, SHRINK PITCH
Packing Method TR
Peak Reflow Temperature (Cel) 260
Power Supply Current-Max (ICC) 0.04 mA
Prop. Delay@Nom-Sup 12 ns
Propagation Delay (tpd) 13 ns
Qualification Status Not Qualified
Seated Height-Max 2 mm
Supply Voltage-Max (Vsup) 5.5 V
Supply Voltage-Min (Vsup) 4.5 V
Supply Voltage-Nom (Vsup) 5 V
Surface Mount YES
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form GULL WING
Terminal Pitch 0.65 mm
Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) 30
Width 5.3 mm

Alternate Parts for SN74AHCT138DBR

This table gives cross-reference parts and alternative options found for SN74AHCT138DBR. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of SN74AHCT138DBR, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
CD74HC238PWT Texas Instruments $0.3926 High Speed CMOS Logic 3-to-8 Line Decoder Demultiplexer Inverting and Non-Inverting 16-TSSOP -55 to 125 SN74AHCT138DBR vs CD74HC238PWT
74LVC138PW-T NXP Semiconductors Check for Price IC LVC/LCX/Z SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16, Decoder/Driver SN74AHCT138DBR vs 74LVC138PW-T
74HCT4515DB NXP Semiconductors Check for Price HCT SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO24 SN74AHCT138DBR vs 74HCT4515DB
SN74HC138NSR Texas Instruments $0.1604 3-Line To 8-Line Decoders/Demultiplexers 16-SOP -40 to 85 SN74AHCT138DBR vs SN74HC138NSR
MC74ACT138DTR2G onsemi $0.3994 1-of-8 Decoder/Demultiplexer, TSSOP-16, 2500-REEL SN74AHCT138DBR vs MC74ACT138DTR2G
MC74VHC139DTR2 onsemi Check for Price AHC/VHC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16, LEAD FREE, TSSOP-16 SN74AHCT138DBR vs MC74VHC139DTR2
MC74VHC139DT onsemi Check for Price AHC/VHC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16, TSSOP-16 SN74AHCT138DBR vs MC74VHC139DT
SN74LVC138ADRE4 Texas Instruments Check for Price 3-Line To 8-Line decoder/Demultiplexer 16-SOIC -40 to 85 SN74AHCT138DBR vs SN74LVC138ADRE4
HEF4555BT Nexperia Check for Price Decoder/Driver SN74AHCT138DBR vs HEF4555BT
74AC11238D YAGEO Corporation Check for Price Decoder/Driver, AC Series, True Output, CMOS, PDSO16 SN74AHCT138DBR vs 74AC11238D

SN74AHCT138DBR Related Parts

SN74AHCT138DBR Frequently Asked Questions (FAQ)

  • The maximum operating frequency of the SN74AHCT138DBR is 100 MHz, but it can vary depending on the specific application and operating conditions.

  • To ensure signal integrity, use proper PCB layout techniques, such as using short signal traces, minimizing impedance mismatch, and adding termination resistors as needed. Additionally, consider using a signal integrity analysis tool to simulate and optimize your design.

  • The SN74AHCT138DBR is a 5V device, but it can be used in 3.3V systems with proper voltage translation and level shifting. However, the device's performance and functionality may be affected, and additional circuitry may be required to ensure compatibility.

  • To ensure proper power sequencing, follow the recommended power-up and power-down sequences outlined in the datasheet. Additionally, consider using power sequencing controllers or voltage supervisors to manage power distribution and ensure that all devices are powered up and down in the correct order.

  • The recommended operating temperature range for the SN74AHCT138DBR is -40°C to 85°C. However, the device can operate at temperatures outside this range, but its performance and reliability may be affected.