Alternatives to onsemi 74LCX38M
onsemi 74LCX38M and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 74LCX38Monsemi |  SN74HC03DRTexas Instruments | 74HC03DToshiba Semiconductor and Storage | +2more | |
|---|---|---|---|---|
| FFF Compatibility | The pin layout and footprint are identical, meaning the part physically mounts on the same board and the functional pin assignments align perfectly.Standard 14-SOIC (0.154 inch, 3.90mm width) package matching the dimensions of the original onsemi part.The SN74HC03DR operates over 2V to 6V but has much slower propagation delay (~23ns vs 6.5ns) and weaker low-level output sink current (5.2mA vs 24mA). It also lacks 5V-tolerant inputs when operated at 3.3V. | Pinout configuration and standard 14-SOIC logic gate package are fully compatible.Same standard 14-SOIC dimensions (3.90mm body width).Slower logic propagation delays (~13ns at 6V) and weaker output drive current (5.2mA max sink) compared to the original LCX38 part. Additionally, inputs are not 5V-tolerant when VCC is 3.3V. | ||
 AI Summary | 74LCX38M by onsemi: NAND Gate IC 4 Channel Open Drain 14-SOIC. | The SN74HC03DR is a highly available, active substitute from Texas Instruments. It functions as a quadruple 2-input NAND gate with open-drain outputs in the exact same SOIC-14 package. However, due to being in the standard HC family, it exhibits slower speed and lower drive strength than the original LCX part.
| Toshiba's 74HC03D provides an active and reliable drop-in replacement in a 14-SOIC footprint. It matches the open-drain NAND logic function perfectly but exhibits slower propagation speed and weaker current sinking capabilities.
| |
| Lifecycle Status | Obsolete | Active | Unknown | |
| Market Availability | In stock | In stock | Unknown | |
| REACH | REACH | REACH | Unknown | |
| RoHS | RoHS | RoHS | Unknown | |
| Description | NAND Gate IC 4 Channel Open Drain 14-SOIC | NAND Gate IC 4 Channel Open Drain 14-SOIC | Toshiba's 74HC03D provides an active and reliable drop-in replacement in a 14-SOIC footprint. It matches the open-drain NAND logic function | |
| Manufacturer | onsemi | Texas Instruments | Toshiba Semiconductor and Storage | |
| Type | Logic | Logic | Component | |
| Datasheet | Open | Open | N/A | |
| Lead Time | 53 weeks | 9 weeks | Unknown | |
| Country of Origin | PH, TW | - | - | |
| Export Control Class Number | EAR99 | EAR99 | EAR99 | |
| HTSUS Code | 8542.39.0090 | - | - | |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - | |
| Features | Open Drain | - | - | |
| Logic Type | NAND Gate | - | - | |
| Mounting Type | Surface Mount | - | - | |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | - | - | |
| Number of Inputs | 2 | - | - | |
| Voltage - Supply | 2V ~ 3.6V | - | - | |
| Number of Circuits | 4 | - | - | |
| Operating Temperature | -40°C ~ 85°C | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 74LCX138MTConsemi | In stock | Obsolete | 3Alternatives availableSee Alternatives |
 74LCX08MTConsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
 74LCX14Monsemi | Discontinued | Obsolete | 6Alternatives availableSee Alternatives |
| 74LCX14MXonsemi | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| 74LCX125MXonsemi | Discontinued | Obsolete | 4Alternatives availableSee Alternatives |
| 74LCX14MTConsemi | In stock | Obsolete | 5Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The onsemi 74LCX38M is marked obsolete, so the manufacturer has discontinued it and any remaining supply is limited to distributor stock. The qualified second sources on this page are active parts you can design in today.
The closest qualified second sources for the onsemi 74LCX38M are the SN74HC03DR (Texas Instruments) and the 74HC03D (Toshiba Semiconductor and Storage), out of 4 matched alternatives in total. Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the 74LCX38M are matched on function but can differ in package, pinout or a key parameter, so review the fit/form/function notes in the table and the datasheet before designing one in.
The 74LCX38M (onsemi) is a part in the Logic category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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