SP3232EHCY-L/TR - Dual 3.3V RS-232 Transceiver | MaxLinear
N.º da peça: SP3232EHCY-L/TR ✓ AtivoSP3232EHCY-L/TR Visão geral
An RS-232 transceiver is an interface IC that converts between logic-level UART signals and the voltage levels used by RS-232 equipment. The broader hierarchy is transceiver, interface IC, and semiconductor. Within an RS-232 interface, the transmitters convert outgoing logic signals into RS-232 levels, while the receivers convert incoming RS-232 signals into logic-compatible levels.
The SP3232EH family provides two drivers and two receivers in a single package. Its operating supply range of 3 V to 5.5 V supports both 3.3 V and 5 V systems. The device is intended for portable or handheld applications such as notebook and palmtop computers, where compact package size, low-voltage operation, and dependable line-driver performance are important.
According to the manufacturer datasheet, the transceiver meets true EIA/TIA-232-F standards from a 5.5 V supply and remains interoperable with RS-232 when operated from a 2.7 V source. The enhanced ESD specification reaches 15 kV under the Human Body Model, helping protect the external RS-232 pins in user-accessible equipment.
Typical uses include serial port interfaces, portable data-collection terminals, point-of-sale equipment, diagnostic equipment, and embedded systems that require two serial channels from one compact IC. The 16-pin TSSOP package reduces board area compared with larger dual-transceiver implementations while retaining separate transmit and receive channels.
When laying out a circuit, keep RS-232 signal traces away from clocks, switching nodes, and high-current power paths. Confirm the host logic voltage, transceiver supply, and connector-side signal levels before assembly. Place the device near the protection network or connector when the PCB allows, and provide a continuous ground reference between the equipment and connected RS-232 system.
This page combines the exact device attributes with practical interface guidance, package-focused alternatives, and engineering-oriented comparisons that help identify the correct RS-232 transceiver for a new design.
Alternativas drop-in para SP3232EHCY-L/TR — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com SP3232EHCY-L/TR (mesmo formato e footprint) — diferindo em Package, Maximum Data Rate, Mounting Type, Operating Temperature, Transceiver Configuration.
SP3232EEY-L/TR
✅ Drop-InConsulte o preço
Ver ficha técnica →SP3232ECY-L/TR
✅ Drop-InConsulte o preço
Ver ficha técnica →SP3232EEN-L/TR
✅ Drop-InConsulte o preço
Ver ficha técnica →SP3232ECA-L/TR
✅ Drop-InConsulte o preço
Ver ficha técnica →SP232AET-L/TR
✅ Drop-InConsulte o preço
Ver ficha técnica →SP3232EHCY-L/TR Especificações
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Transceiver Configuration | 2/2 full RS-232 |
| Supply Voltage Range | 3 V to 5.5 V |
| Minimum Operating Supply | 2.7 V |
| Maximum Data Rate | 460 kbps |
| Interface Standard | RS-232 |
| Compliance Standard | EIA/TIA-232-F |
| Enhanced ESD Rating | 15 kV Human Body Model |
| Encapsulamento | 16-TSSOP |
| Package Width | 4.40 mm |
| Tipo de montagem | Surface Mount |
| Packaging | Tape and Reel |
| Número de pinos | 16 pins |
| Product Type | Dual RS-232 transceiver |
Guia de Configuração de Pinos do SP3232EHCY-L/TR 4.40 mm
Configuração de pinos para SP3232EHCY-L/TR (pacote 4.40 mm). A numeração dos pinos, funções e diagramas de conexão estão definidos no datasheet do fabricante. Consulte-o para o footprint exato e diretrizes de soldagem.
Nenhum dado detalhado de pinagem disponível para SP3232EHCY-L/TR.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
SP3232EHCY-L/TR é adequado para 6 aplicaçãos: Portable Serial Terminals, Point-of-Sale Equipment, Industrial Data Collection, Embedded Service Interfaces, Medical and Diagnostic Equipment, Networking and Administration Consoles.
Portable Serial Terminals
The SP3232EHCY-L/TR fits portable terminals that require two RS-232 channels while operating from a 3.3 V or 5 V system rail. Its two transmitters and two receivers consolidate four line-interface functions into a 16-pin TSSOP package, while the 460 kbps maximum data rate supports common serial-control and configuration links. The 2.7 V interoperability capability can also simplify system planning around low-voltage sources. Designers should verify each family member's exact pin functions, UART logic levels, and power-sequencing requirements before finalizing the board layout.
Recomendado
Point-of-Sale Equipment
Point-of-sale equipment can use the SP3232EHCY-L/TR when it needs more than one legacy RS-232 port for peripherals such as scales, printers, or customer displays. The 460 kbps rate is suitable for many control and transaction-related serial protocols, while the 16-pin TSSOP package helps preserve board area in compact systems. The 3 V to 5.5 V supply range supports both 3.3 V and 5 V logic platforms. Final channel assignment and connector protection should follow the exact manufacturer pin table and the mechanical grounding requirements of each attached peripheral.
Recomendado
Industrial Data Collection
The SP3232EHCY-L/TR is suitable for compact data-collection equipment that connects to two RS-232 instruments. The dual-driver, dual-receiver arrangement provides two independent communication channels, and the 460 kbps capability supports legacy instrument protocols as well as moderate-speed configuration traffic. Its 16-pin TSSOP package can be placed close to the connector, helping keep external-interface routing compact. Because industrial installations may expose cables to severe ESD, the integrated 15 kV Human Body Model rating should be evaluated against the actual connector, grounding, and enclosure design.
Recomendado
Embedded Service Interfaces
Embedded equipment can use the SP3232EHCY-L/TR for two service or diagnostic ports, allowing technicians to connect legacy RS-232 tools without adding multiple discrete line drivers and receivers. The 460 kbps maximum rate accommodates many configuration consoles and programming adapters. A 3.3 V host can operate the transceiver within its specified supply range while maintaining the bipolar voltage signaling required at the RS-232 connector. The design should include defined connector pinouts, signal-reference grounding, and adequate separation between external interface traces and sensitive circuitry inside the enclosure.
Recomendado
Medical and Diagnostic Equipment
The SP3232EHCY-L/TR can support legacy RS-232 service connections in medical or diagnostic equipment where two external serial ports are needed. Its dual-channel configuration reduces the number of interface packages, while the 460 kbps rate covers many equipment-control and maintenance protocols. The 16-pin TSSOP footprint is useful where connector access and PCB area are constrained. Medical applications require additional system-level review of electrical isolation, applicable regulatory requirements, operator exposure, and ESD controls; the transceiver's interface rating does not by itself establish medical-system compliance.
Recomendado
Networking and Administration Consoles
Network-administration and console equipment can use the SP3232EHCY-L/TR to provide two RS-232 service connections from a compact controller board. One channel may connect to a local terminal while another supports a legacy switch, sensor, or configuration device. The 460 kbps rate and two-driver, two-receiver arrangement cover common administrative interfaces, and the 3 V to 5.5 V range allows integration with 3.3 V or 5 V embedded platforms. Route the two channels away from Ethernet magnetics, switching regulators, and high-speed clocks to minimize coupling into the external interface.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para SP3232EHCY-L/TR — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | SP3232EEY-L/TR | SP3232ECY-L/TR | SP3232EEN-L/TR | SP3232ECA-L/TR | SP232AET-L/TR |
|---|---|---|---|---|---|---|
| Package | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP | 16-TSSOP |
| Brand | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. | MaxLinear, Inc. |
| Interface Standard | EIA/TIA-232-F | RS-232 | RS-232 | RS-232 | RS-232 | RS-232 |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
Principais diferenciais
- Two complete RS-232 channels in a compact 16-pin TSSOP package (vs SP232AET-L/TR)
- Documented 3 V to 5.5 V operating range (vs SP3232EEY-L/TR)
- RS-232 interoperability from a 2.7 V source (vs SP3232ECY-L/TR)
- Enhanced connector-side ESD capability (vs SP3232ECA-L/TR)
Notas de projeto
Place the SP3232EHCY-L/TR near the RS-232 connector and route each driver output and receiver input directly toward its corresponding connector or protection component. Keep switching-node traces and high-current power paths away from the bipolar RS-232 nets. A continuous ground-reference path should run with each interface, while the exact ground and charge-pump connections must follow the manufacturer pin table for the HCY-L/TR ordering code.
Do not treat an identical 16-TSSOP footprint as proof of electrical drop-in compatibility. Before replacing SP3232EHCY-L/TR with SP3232EEY-L/TR, SP3232ECY-L/TR, SP3232EEN-L/TR, SP3232ECA-L/TR, or SP232AET-L/TR, compare every numbered pin, supply limit, driver output state, receiver enable function, and maximum data rate. Also confirm that the selected tape-and-reel code matches the PCB assembly process and pick-and-place requirements.
RS-232 uses bipolar signaling, so the host-side UART voltage and connector-side signal levels must not be treated as interchangeable. Route the two channels with consistent reference grounds and avoid long parallel runs with clocks, Ethernet data, or switching-converter outputs. If cables leave the enclosure, evaluate connector geometry and system grounding alongside the IC's 15 kV Human Body Model ESD rating rather than relying on the IC rating alone.
Operate the transceiver only within its specified 3 V to 5.5 V supply range and design the host logic interface for the correct logic-high and logic-low levels. The listed 2.7 V interoperability point describes operation with a low-voltage RS-232 source, not permission to exceed the IC's rated supply. Include adequate local supply bypassing as directed by the manufacturer datasheet and verify startup behavior across the complete system power range.
Informações de conformidade
The device documentation identifies EIA/TIA-232-F compliance and a 15 kV Human Body Model ESD rating. Specific RoHS, REACH, lead-free, halogen-free, conflict-minerals, and automotive qualification states were not established for the exact ordering code.
