Features and benefits
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Wide supply voltage range from 2.0 to 6.0 V
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CMOS low power dissipation
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High noise immunity
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Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
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Demultiplexing capability
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Multiple input enable for easy expansion
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Ideal for memory chip select decoding
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Active LOW mutually exclusive outputs
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Input levels:
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For 74HC138: CMOS level
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For 74HCT138: TTL level
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Complies with JEDEC standards:
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JESD8C (2.7 V to 3.6 V)
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JESD7A (2.0 V to 6.0 V)
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ESD protection:
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HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
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CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
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Multiple package options
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Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Parametrics
Type number | Product status | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
---|---|---|---|---|---|---|---|---|---|---|---|
74HC138BQ | Production | 2.0 - 6.0 | CMOS | ± 5.2 | 12 | low | -40~125 | 93 | 14.3 | 63 | DHVQFN16 |
74HC138D | Production | 2.0 - 6.0 | CMOS | ± 5.2 | 12 | low | -40~125 | 93 | 10.0 | 53 | SO16 |
74HC138PW | Production | 2.0 - 6.0 | CMOS | ± 5.2 | 12 | low | -40~125 | 125 | 4.7 | 55.5 | TSSOP16 |
74HCT138BQ | Production | 4.5 - 5.5 | TTL | ± 4 | 19 | low | -40~125 | 93 | 14.3 | 63 | DHVQFN16 |
74HCT138D | Production | 4.5 - 5.5 | TTL | ± 4 | 19 | low | -40~125 | 93 | 10.0 | 53 | SO16 |
74HCT138PW | Production | 4.5 - 5.5 | TTL | ± 4 | 19 | low | -40~125 | 125 | 4.7 | 55.5 | TSSOP16 |
Package
Type number | Package | Package information | Reflow-/Wave soldering | Packing | Status | Marking | Orderable part number, (Ordering code (12NC)) |
---|---|---|---|---|---|---|---|
74HC138BQ | DHVQFN16 (SOT763-1) | SOT763-1 | SOT763-1_115 | Active | HC138 | 74HC138BQ,115 ( 9352 737 78115 ) | |
74HC138D | SO16 (SOT109-1) | SOT109-1 | SO-SOJ-REFLOW SO-SOJ-WAVE | SOT109-1_653 | Active | 74HC138D | 74HC138D,653 ( 9337 134 00653 ) |
74HC138PW | TSSOP16 (SOT403-1) | SOT403-1 | SSOP-TSSOP-VSO-WAVE | SOT403-1_118 | Active | HC138 | 74HC138PW,118 ( 9351 743 80118 ) |
74HCT138BQ | DHVQFN16 (SOT763-1) | SOT763-1 | SOT763-1_115 | Active | HCT138 | 74HCT138BQ,115 ( 9352 744 71115 ) | |
74HCT138D | SO16 (SOT109-1) | SOT109-1 | SO-SOJ-REFLOW SO-SOJ-WAVE | SOT109-1_653 | Active | 74HCT138D | 74HCT138D,653 ( 9337 134 10653 ) |
74HCT138PW | TSSOP16 (SOT403-1) | SOT403-1 | SSOP-TSSOP-VSO-WAVE | SOT403-1_118 | Active | HCT138 | 74HCT138PW,118 ( 9351 873 20118 ) |
The variants in the table below are discontinued. See the table Discontinuation information for more information.
Type number | Package | Package information | Reflow-/Wave soldering | Packing | Status | Marking | Orderable part number, (Ordering code (12NC)) |
---|---|---|---|---|---|---|---|
74HC138D | SO16 (SOT109-1) | SOT109-1 | SO-SOJ-REFLOW SO-SOJ-WAVE | SOT109-1_652 | Withdrawn / End-of-life | 74HC138D | 74HC138D,652 ( 9337 134 00652 ) |
74HC138PW | TSSOP16 (SOT403-1) | SOT403-1 | SSOP-TSSOP-VSO-WAVE | SOT403-1_112 | Withdrawn / End-of-life | HC138 | 74HC138PW,112 ( 9351 743 80112 ) |
74HCT138D | SO16 (SOT109-1) | SOT109-1 | SO-SOJ-REFLOW SO-SOJ-WAVE | SOT109-1_652 | Withdrawn / End-of-life | 74HCT138D | 74HCT138D,652 ( 9337 134 10652 ) |
74HCT138PW | TSSOP16 (SOT403-1) | SOT403-1 | SSOP-TSSOP-VSO-WAVE | SOT403-1_112 | Withdrawn / End-of-life | HCT138 | 74HCT138PW,112 ( 9351 873 20112 ) |
Discontinuation information
Type number | Orderable part number, (Ordering code (12NC)) | Last time buy date | Last time delivery date | Replacement product | Status | Comments |
---|---|---|---|---|---|---|
74HC138D | 933713400652 | 2021-12-31 | 2022-06-30 | 74HC138D | ||
74HC138PW | 935174380112 | 2021-12-31 | 2022-06-30 | 74HC138PW | ||
74HCT138D | 933713410652 | 2021-12-31 | 2022-06-30 | 74HCT138D | ||
74HCT138PW | 935187320112 | 2021-12-31 | 2022-06-30 | 74HCT138PW |
Environmental information
Type number | Orderable part number | Chemical content | RoHS | RHF-indicator | Leadfree conversion date |
---|---|---|---|---|---|
74HC138BQ | 74HC138BQ,115 | 74HC138BQ | Always Pb-free | ||
74HC138D | 74HC138D,653 | 74HC138D | week 12, 2005 | ||
74HC138PW | 74HC138PW,118 | 74HC138PW | week 10, 2005 | ||
74HCT138BQ | 74HCT138BQ,115 | 74HCT138BQ | Always Pb-free | ||
74HCT138D | 74HCT138D,653 | 74HCT138D | week 12, 2005 | ||
74HCT138PW | 74HCT138PW,118 | 74HCT138PW | week 10, 2005 |
The variants in the table below are discontinued. See the table Discontinuation information for more information.
Type number | Orderable part number | Chemical content | RoHS | RHF-indicator | Leadfree conversion date |
---|---|---|---|---|---|
74HC138D | 74HC138D,652 | 74HC138D | week 12, 2005 | ||
74HC138PW | 74HC138PW,112 | 74HC138PW | week 10, 2005 | ||
74HCT138D | 74HCT138D,652 | 74HCT138D | week 12, 2005 | ||
74HCT138PW | 74HCT138PW,112 | 74HCT138PW | week 10, 2005 |
Documentation (11)
File name | Title | Type | Date |
---|---|---|---|
74HC_HCT138 | 3-to-8 line decoder/demultiplexer; inverting | Data sheet | 2024-02-26 |
AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
HCT_USER_GUIDE | HC/T User Guide | User manual | 1997-10-31 |
SOT763-1 | plastic, leadless dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 1 mm body | Package information | 2023-05-11 |
SO-SOJ-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
SO-SOJ-REFLOW | Footprint for reflow soldering | Reflow soldering | 2009-10-08 |
WAVE_BG-BD-1 | Wave soldering profile | Wave soldering | 2021-09-08 |
SOT109-1 | plastic, small outline package; 16 leads; 1.27 mm pitch; 9.9 mm x 3.9 mm x 1.75 mm body | Package information | 2023-11-07 |
SOT403-1 | plastic, thin shrink small outline package; 16 leads; 5 mm x 4.4 mm x 1.2 mm body | Package information | 2023-11-08 |
SSOP-TSSOP-VSO-WAVE | Footprint for wave soldering | Wave soldering | 2009-10-08 |
Support
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Models
File name | Title | Type | Date |
---|---|---|---|
hc | HC/HCT Spice model | SPICE model | 2022-02-17 |
Ordering, pricing & availability
Sample
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