Alternatives to NXP SC18IM700IPW/S8HP
NXP SC18IM700IPW/S8HP and its qualified second sources, compared on form/fit/function, stock, lifecycle and price — the same checks Parter runs inside a BOM.
 SC18IM700IPW/S8HPNXP |  SC18IM704PWJNXP USA Inc. |  MSP430FR2311IPW16Texas Instruments | |
|---|---|---|---|
| FFF Compatibility | The pinout has been completely reorganized (e.g., VDD/VSS and SCL/SDA are on entirely different pins), requiring a PCB layout redesign.Both devices utilize the standard 16-TSSOP package (SOT403-1) with identical physical dimensions.Acts as a functional equivalent for UART-to-I2C translation, but lacks the quasi-bidirectional mode on GPIO pins. | Requires a completely custom board layout and pin configuration.Available in a standard TSSOP-16 package matching the physical footprint of the original part.Since it is a programmable MCU, its firmware can be written to exactly duplicate the command interpreter, timing, and GPIO characteristics of the SC18IM700. | |
 AI Summary | SC18IM700IPW/S8HP by NXP: I2C Controller UART Interface 16-TSSOP. | The SC18IM704PWJ is the manufacturer-recommended upgrade path for the obsolete SC18IM700 series. While it shares the same physical TSSOP-16 package and command-level firmware protocols, it has a completely revised pinout and lacks quasi-bidirectional GPIO options, requiring a hardware redesign.
| Implementing a software-based UART-to-I2C bridge using a low-memory, low-cost microcontroller is the industry-standard design-in migration path for obsolete proprietary bridge ICs. This enables 100% functional emulation of the exact SC18IM700 ASCII-command protocol and GPIO behaviors, avoiding host-side software changes at the cost of firmware implementation.
|
| Lifecycle Status | Obsolete | Active | Active |
| Market Availability | In stock | In stock | In stock |
| REACH | REACH | REACH | REACH |
| RoHS | RoHS | RoHS | RoHS |
| Description | I2C Controller UART Interface 16-TSSOP | I2C Controller UART Interface 16-TSSOP | MSP430 CPU16 MSP430™ FRAM Microcontroller IC 16-Bit 16MHz 3.75KB (3.75K x 8) FRAM 16-TSSOP |
| Manufacturer | NXP | NXP USA Inc. | Texas Instruments |
| Type | Interface | Interface | Embedded |
| Datasheet | Open | Open | Open |
| Lead Time | 52 weeks | 16 weeks | 18 weeks |
| Country of Origin | PH | - | - |
| Export Control Class Number | EAR99 | EAR99 | EAR99 |
| HTSUS Code | 8542.39.0070 | - | - |
| Moisture Sensitivity Level | 1 (Unlimited) | - | - |
| Function | Controller | - | - |
| Protocol | I2C | - | - |
| Interface | UART | - | - |
| Package / Case | 16-TSSOP (0.173", 4.40mm Width) | - | - |
| Current - Supply | 9mA | - | - |
| Voltage - Supply | 2.4V ~ 3.6V | - | - |
| DigiKey Programmable | Not Verified | - | - |
| Operating Temperature | -40°C ~ 85°C | - | - |
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Related parts
| Part | Market availability | Lifecycle | Alternatives available |
|---|---|---|---|
 SC18IM700IPWNXP | Discontinued | Obsolete | 2Alternatives availableSee Alternatives |
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Frequently asked questions
Yes. The NXP SC18IM700IPW/S8HP 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 NXP SC18IM700IPW/S8HP are the SC18IM704PWJ (NXP USA Inc.) and the MSP430FR2311IPW16 (Texas Instruments). Each is compared against the original on fit, form and function in the table above.
Not always. The alternatives to the SC18IM700IPW/S8HP 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 SC18IM700IPW/S8HP (NXP) is a part in the Interface category. This page lists qualified, cross-referenced replacements for it with a side-by-side comparison.
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