Orderable parts
| Type number | Orderable part number | Ordering code (12NC) | Package | Buy from distributors |
|---|---|---|---|---|
| 74LV138BQ | 74LV138BQ,115 | 935285577115 | SOT763-1 | Order product |
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Click here for more information74LV138BQ
3-to-8 line decoder/demultiplexer; inverting
The 74LV138 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The 74LV138 features three enable inputs (Y1, Y2 and E3). Every output will be HIGH unless Y1 and Y2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion of the 74LV138 to a 1-of-32 (5 to 32 lines) decoder with just four 74LV138 ICs and one inverter. The 74LV138 can be used as an eight output demultiplexer by using one of the active LOW enable inputs as the data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess VCC.
Features and benefits
Wide supply voltage range from 1.0 to 5.5 V
Optimized for low voltage applications: 1.0 V to 3.6 V
CMOS low power dissipation
Direct interface with TTL levels
Typical output ground bounce < 0.8 V at VCC = 3.3 V and Tamb = 25 °C
Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 °C
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Active LOW mutually exclusive outputs
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards
JESD8-7 (1.65 V to 1.95 V)
JESD8-5 (2.3 V to 2.7 V)
JESD8C (2.7 V to 3.6 V)
JESD36 (4.5 V to 5.5 V)
ESD protection:
HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V
Multiple package options
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Parametrics
| Type number | 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 74LV138BQ | 1.0 - 5.5 | TTL | ± 12 | 12 | low | -40~125 | 83 | 6.5 | 50 | DHVQFN16 |
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
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Package
| Type number | Orderable part number, (Ordering code (12NC)) | Status | Marking | Package | Package information | Reflow-/Wave soldering | Packing |
|---|---|---|---|---|---|---|---|
| 74LV138BQ | 74LV138BQ,115 (935285577115) |
Active | LV138 |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74LV138BQ | 74LV138BQ,115 | 74LV138BQ |
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Documentation (9)
| File name | Title | Type | Date |
|---|---|---|---|
| 74LV138 | 3-to-8 line decoder/demultiplexer; inverting | Data sheet | 2024-01-23 |
| AN90063 | Questions about package outline drawings | Application note | 2025-06-13 |
| SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
| Nexperia_package_poster | Nexperia package poster | Leaflet | 2020-05-15 |
| DHVQFN16_SOT763-1_mk | plastic, 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 0.85 mm body | Marcom graphics | 2017-01-28 |
| 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 |
| SOT763-1_115 | DHVQFN16; Reel pack, SMD, 7" Q1/T1 product orientation | Packing information | 2020-04-21 |
| 74LV138BQ_Nexperia_Product_Reliability | 74LV138BQ Nexperia Product Reliability | Quality document | 2025-03-20 |
| lv | lv Spice model | SPICE model | 2013-05-07 |
Support
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Longevity
The Nexperia Longevity Program is aimed to provide our customers information from time to time about the expected time that our products can be ordered. The NLP is reviewed and updated regularly by our Executive Management Team. View our longevity program here.
PCB Symbol, Footprint and 3D Model
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Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Status | Packing | Packing Quantity | Buy online |
|---|---|---|---|---|---|---|
| 74LV138BQ | 74LV138BQ,115 | 935285577115 | Active | SOT763-1_115 | 3,000 |
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Sample
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If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples. Check out the list of official distributors.
How does it work?
The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.