SP3232EN-L - 3V RS-232 Transceiver | MaxLinear | Serial Interface
Teilenummer: SP3232EN-L ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $0.273 | $0,27 |
| 10 | $0.273 | $2,73 |
| 100 | $0.273 | $27,30 |
| 500 | $0.273 | $136,50 |
| 1.000 | $0.273 | $273,00 |
SP3232EN-L Übersicht
An RS-232 transceiver is an interface IC that converts between logic-level TTL/CMOS signals and the voltage-defined, single-ended differential signaling used by RS-232 equipment. This device integrates transmit and receive channels, allowing two serial directions to share one physical interface. It is commonly selected for battery-powered, portable, industrial-control, and legacy equipment connections where a compact, low-voltage serial interface is required.
The SP3232EN-L is specified for a 3.0 V to 5.5 V operating supply range and a maximum data rate of 120 kbps under full load. The supplied specifications also identify approximately 1 mA supply current, low-power shutdown capability with receivers active for the relevant SP3222E family description, and operation from -40 C to +85 C. Its RS-232 interface is intended for portable or hand-held applications such as notebook and palmtop computers.
The 16-pin SOIC package provides a conventional surface-mount footprint suitable for compact PCB assemblies. Because this is an interface transceiver rather than a power semiconductor, the safe-operating-area field is not applicable. Exact pin names, pinout details, receiver and transmitter electrical limits, and some lifecycle and compliance fields were not present in the supplied verified snippets; those values should be checked against the manufacturer datasheet before production release.
Typical applications include RS-232 links in portable data-acquisition equipment, handheld test instruments, embedded controllers with legacy serial ports, and battery-operated peripherals. The 120 kbps rate is suitable for moderate-speed serial communication rather than high-bandwidth protocols. When designing the interface, account for the RS-232 voltage levels, cable capacitance, grounding strategy, protection requirements, and the difference between logic-level and RS-232-side pins.
This page consolidates the verified SP3232EN-L distributor records, identified technical specifications, application guidance, and design cautions into one engineering reference. It is intended to support part selection and preliminary design work; final component validation should use the current manufacturer datasheet and approved sourcing channels.
Drop-in-Alternativen für SP3232EN-L – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit SP3232EN-L (gleiche Bauform und Footprint) – abweichend in Data Rate, Operating Temperature, Package.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
SP3232EBCT-L
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MAX3232ESE-T
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
MAX3232ESE+TG035
✅ Drop-In✓ Auf Lager
$2.98 / Stück
Datenblatt ansehen →SP3232EN-L Technische Daten
| Product Type | RS-232 transceiver |
| Transceiver Configuration | 2/2 transceiver |
| Betriebsversorgungsspannung | 3 V to 5.5 V |
| Datenrate | 120 kbps under full load |
| Versorgungsstrom | 1 mA |
| Schnittstelle | RS-232 |
| Data Direction | Full RS-232 |
| Betriebstemperatur | -40 C to +85 C |
| Gehäuse | 16-pin SOIC |
| Montageart | Surface mount |
| Low-Power Shutdown | 1 uA with receivers active |
| Standard Compliance | True EIA/TIA-232-F |
| Application Category | Portable or hand-held equipment |
| Manufacturer | MaxLinear |
| RoHS-Status | Details not provided in verified snippets |
| REACH Status | Details not provided in verified snippets |
SP3232EN-L 16-pin soic Pinbelegungsleitfaden
Pinbelegung für SP3232EN-L (16-pin soic-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für SP3232EN-L.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
SP3232EN-L ist geeignet für 6 Anwendungs: Portable RS-232 Data Acquisition, Handheld Test and Measurement, Embedded Controller Legacy Serial Port, Battery-Operated Peripheral, Industrial Configuration Link, Legacy Computer Peripheral Connection.
Portable RS-232 Data Acquisition
The SP3232EN-L fits portable data-acquisition equipment because it provides a 2/2 RS-232 interface from a 3.0 V to 5.5 V supply and supports up to 120 kbps under full load. A handheld instrument can connect its UART logic to the transceiver’s logic-side pins while the RS-232 side reaches a legacy computer or peripheral. The 16-pin SOIC package helps preserve board area, while the verified approximately 1 mA supply current is useful for battery-operated designs. Confirm logic thresholds, cable length, grounding, and protection against the exact datasheet before production.
Empfohlen
Handheld Test and Measurement
The SP3232EN-L is appropriate for a handheld tester or service instrument that must communicate with older RS-232 equipment. Its verified 120 kbps maximum rate is suitable for command exchange, configuration downloads, and moderate data transfers rather than high-speed video or bulk storage. The 3.0 V to 5.5 V operating range supports portable mixed-voltage systems, and the 16-pin SOIC permits compact assembly. Designers should budget for ESD and surge protection, verify the RS-232 connector pinout, and validate operation with the intended cable and host.
Empfohlen
Embedded Controller Legacy Serial Port
The SP3232EN-L can add a legacy RS-232 port to an embedded controller that already has a UART and needs a standards-compatible external interface. Its 2/2 full-duplex configuration supports both transmit and receive paths in one compact IC, while the 3.0 V to 5.5 V supply range simplifies rail selection. At up to 120 kbps, it is appropriate for supervisory commands, bootloader communication, and low-bandwidth configuration links. Confirm logic-side levels, receiver thresholds, shutdown pins, and package-level pin compatibility with the exact manufacturer documentation.
Empfohlen
Battery-Operated Peripheral
The SP3232EN-L is a reasonable fit for battery-operated peripherals that need a low-voltage RS-232 connection. The verified 3.0 V to 5.5 V supply range accommodates common portable rails, and the listed approximately 1 mA supply current supports power-conscious designs when the full operating state and external load are accounted for. The interface can connect a controller to service tools or legacy equipment without adding a separate converter. A complete design should still include appropriate capacitor selection, cable protection, shutdown behavior, and a thermal review based on the exact datasheet.
Empfohlen
Industrial Configuration Link
The SP3232EN-L can serve as a compact configuration and service link in industrial equipment where RS-232 remains a required plant-facing interface. Its 120 kbps capability is more than adequate for parameter upload, diagnostic output, and firmware-control traffic, while the 16-pin SOIC supports conventional PCB assembly. The -40 C to +85 C listed operating range is useful across equipment categories, but enclosure temperature, grounding, and cable routing must be validated in the final system. Add appropriate transient protection and confirm industrial compliance requirements separately.
Empfohlen
Legacy Computer Peripheral Connection
The SP3232EN-L matches the stated use case of portable and hand-held equipment communicating with legacy RS-232 systems, including notebook or palmtop-style peripherals. Its integrated 2/2 transceiver arrangement reduces the number of separate line-driver and receiver blocks, while the low-voltage operation supports compact embedded designs. The 120 kbps rate is appropriate for legacy control and configuration protocols. During hardware design, verify connector DTE/DCE orientation, logic polarity, cable length, ground continuity, and protection requirements rather than assuming every RS-232 peripheral uses the same signal mapping.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für SP3232EN-L – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | SP3232EBCT-L | MAX3232ESE-T | MAX3232ESE |
|---|---|---|---|---|
| Brand | MaxLinear | MaxLinear | Maxim Integrated | Maxim Integrated |
| Package | 16-pin SOIC | SOIC-16 | SOIC-16 | SOIC-16 |
Wichtigste Unterscheidungsmerkmale
- Low-voltage operation for portable equipment (vs. SP3232EBCT-L)
- 120 kbps under-full-load operation (vs. MAX3232ESE-T)
- Compact 16-pin SOIC integration (vs. MAX3232ESE)
Designhinweise
Design the transceiver supply rail for the verified 3.0 V to 5.5 V operating range and place the required charge-pump capacitors exactly as specified by the applicable SP3232E datasheet. The verified data lists approximately 1 mA supply current, but total system demand also includes external loads and the operating state of both channels. Decouple the IC locally and keep switching-current return paths short.
Route the RS-232 connector, protection network, transceiver, and logic-side UART connection according to the manufacturer’s recommended layout. Keep the RS-232 side physically separated from sensitive analog or high-speed digital nets, use a solid ground reference, and minimize loop area around protection components. Confirm the exact 16-pin SOIC pinout and exposed-pad requirements from the package drawing before fabrication.
Do not treat a 16-pin SOIC comparison candidate as interchangeable solely because it is labeled RS-232. Check pin functions, logic-side thresholds, supply range, charge-pump capacitor requirements, shutdown behavior, and temperature grade for every substitution. The supplied data specifically identifies SP3232EBCT-L and MAX3232ESE-T as comparison candidates, but it does not prove exact pin compatibility.
RS-232 is a single-ended voltage interface, so grounding, cable length, capacitance, and connector wiring influence reliability. Validate the complete path with the intended host, cable, baud rate, and load conditions. Add ESD or surge protection appropriate to the installation environment, and verify that the protection network does not distort the 120 kbps data-rate requirement.
Compliance-Informationen
The verified search results do not provide sufficient first-party compliance text for RoHS, REACH, lead-free status, halogen-free status, or conflict-minerals status. The -L suffix should not be interpreted as independent compliance evidence.