Orderable parts
| Type number | Orderable part number | Ordering code (12NC) | Package | Buy from distributors |
|---|---|---|---|---|
| 74HCT238BQ | 74HCT238BQ,115 | 935283682115 | SOT763-1 | Order product |
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Click here for more information74HCT238BQ
3-to-8 line decoder/demultiplexer
The 74HC238; 74HCT238 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1 and E2 and E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines) decoder with just four '238 ICs and one inverter. The '238 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 of VCC.
Alternatives
Features and benefits
Wide supply voltage range from 2.0 to 6.0 V
CMOS low power dissipation
High noise immunity
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Active HIGH mutually exclusive outputs
Input levels:
For 74HC238: CMOS level
For 74HCT238: TTL level
Complies with JEDEC standards
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0 V)
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
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) | Package name |
|---|---|---|---|---|---|---|---|
| 74HCT238BQ | 4.5 - 5.5 | TTL | ± 4 | 18 | low | -40~125 | 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 |
|---|---|---|---|---|---|---|---|
| 74HCT238BQ | 74HCT238BQ,115 (935283682115) |
Active | HCT238 |
DHVQFN16 (SOT763-1) |
SOT763-1 | SOT763-1_115 |
Environmental information
| Type number | Orderable part number | Chemical content | RoHS | RHF-indicator |
|---|---|---|---|---|
| 74HCT238BQ | 74HCT238BQ,115 | 74HCT238BQ |
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Series
Documentation (8)
| File name | Title | Type | Date |
|---|---|---|---|
| 74HC_HCT238 | 3-to-8 line decoder/demultiplexer | Data sheet | 2024-03-21 |
| AN11044 | Pin FMEA 74HC/74HCT family | Application note | 2019-01-09 |
| 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 |
| 74HCT238BQ_Nexperia_Product_Reliability | 74HCT238BQ Nexperia Product Reliability | Quality document | 2024-06-16 |
Support
If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.
Models
| File name | Title | Type | Date |
|---|---|---|---|
| SOT763-1 | 3D model for products with SOT763-1 package | Design support | 2019-10-03 |
PCB Symbol, Footprint and 3D Model
| Model Name | Description |
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Ordering, pricing & availability
| Type number | Orderable part number | Ordering code (12NC) | Status | Packing | Packing Quantity | Buy online |
|---|---|---|---|---|---|---|
| 74HCT238BQ | 74HCT238BQ,115 | 935283682115 | Active | SOT763-1_115 | 3,000 | Order product |
Sample
As a Nexperia customer you can order samples via our sales organization.
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.
74HCT238BQ
3-to-8 line decoder/demultiplexer
Buy from Nexperia
| SKU | Stock* | MOQ | Price per unit | Quantity |
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Buy from distributors
| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
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| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
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| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
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| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
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| Seller | SKU | Stock | MOQ | 1 | 10 | 100 | 1,000 | 10,000 | Purchase |
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* Stock values are subject to change
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia>
** Displayed price per unit is based on small quantity orders
*** Authorized resellers for overstock, mature, and discontinued products which are warranted for reliability by the reseller, no longer by Nexperia>
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