MAX232CWE+ - 5V Dual RS-232 Transceiver | Analog Devices
N.º da peça: MAX232CWE+ ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
MAX232CWE+ Visão geral
An RS-232 transceiver is an interface IC that converts between single-ended logic-level signals and the differential, bipolar signaling used by RS-232 links. The transmitter portion accepts TTL/CMOS-compatible inputs and produces RS-232 output levels, while the receiver portion accepts RS-232 inputs and returns logic-level signals to a host, controller, or peripheral. In the system hierarchy, the MAX232 belongs to interface ICs, serial-interface transceivers, and communication adapters rather than to the power-conversion or digital-processing categories.
Key verified features include operation from a 4.5 V to 5.5 V supply, two drivers, two receivers, RS-232 interface compatibility, and a 16-pin wide SOIC package. The MAX232 family is specifically suited to EIA/TIA-232E and V.28/V.24 links and includes on-chip charge-pump support for generating the required RS-232 voltage levels from a single supply. Exact driver slew rate, receiver propagation delay, input and output capacitance, and shutdown-current details were not supplied in the retrieved data and should be confirmed from the manufacturer datasheet before precision timing or signal-integrity design.
Typical applications include serial debug consoles, industrial-control equipment, instrumentation, point-of-sale systems, and legacy peripheral interfaces. The device is appropriate where a controller UART needs a compliant RS-232 electrical interface but the board cannot provide ±12 V. Designers should still verify cable length, data rate, grounding, protection requirements, and the logic levels of the connected host. This page combines the verified product identity, package information, interface purpose, distributor records, and cross-reference findings into an engineering-oriented selection summary.
A key design consideration is to place the MAX232 close to the board connector and provide the required charge-pump capacitors exactly as specified by the manufacturer datasheet. Keep the RS-232 traces away from sensitive analog and high-speed digital paths, and provide suitable transient protection for exposed external connectors. The verified excerpts do not provide operating temperature, RoHS, REACH, lifecycle, or exact absolute-maximum ratings, so those values remain unconfirmed.
This page consolidates verified distributor and cross-reference information, same-package RS-232 design guidance, and explicit engineering trade-offs that are not visible in a basic catalog listing. It is intended to support initial component selection while directing engineers to the official MAX232 datasheet and distributor records for final qualification.
Alternativas drop-in para MAX232CWE+ — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MAX232CWE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX232EIDWR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX232DWR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX232EESE+T
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
SP232ACT-L/TR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX232CWE+ Especificações
| Product Type | RS-232 line driver/receiver transceiver |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Interface Standard | RS-232; EIA/TIA-232E and V.28/V.24 family application |
| Driver Configuration | Dual RS-232 transmitter |
| Receiver Configuration | Dual RS-232 receiver |
| Logic Compatibility | CMOS/TTL-compatible digital interface |
| Single-Supply Operation | +5 V powered |
| Encapsulamento | 16-pin wide SOIC |
| Package Designation | WSOIC-16 |
| Tipo de montagem | Surface mount |
Guia de Configuração de Pinos do MAX232CWE+ wsoic-16
Configuração de pinos para MAX232CWE+ (pacote wsoic-16). 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 MAX232CWE+.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
MAX232CWE+ é adequado para 6 aplicaçãos: Industrial Controller Serial Console, Legacy Point-of-Sale Terminal, Instrumentation and Test Equipment, Battery-Powered Embedded System, Serial Debug Adapter, Data Acquisition and Control Link.
Industrial Controller Serial Console
MAX232CWE+ is suitable for connecting a controller UART to a legacy RS-232 service console because it combines two transmit and two receive channels with operation from a 4.5 V to 5.5 V supply. Place the transceiver between the controller and the external connector, using the device's charge-pump network and logic-side supply arrangement specified by the manufacturer. The design avoids requiring external ±12 V rails, while the dual-channel configuration can support command output, status output, and two inbound signals when the system architecture requires them. Cable length, grounding, logic levels, and connector protection should be validated for the industrial environment.
Recomendado
Legacy Point-of-Sale Terminal
For a point-of-sale terminal that exposes an RS-232 printer, scanner, or customer-display interface, MAX232CWE+ provides a practical bridge from +5 V CMOS/CMOS-compatible logic to RS-232 levels. The two transmitters can handle separate outbound data paths, while the two receivers can accept device status or acknowledgment signals if the pin functions and unused-channel requirements match the datasheet. The single-supply approach simplifies board-level power design, but the system still needs correct grounding, connector pinout, cable selection, and transient protection for retail equipment connected to external cabling.
Recomendado
Instrumentation and Test Equipment
MAX232CWE+ fits test and measurement equipment that needs to communicate with a host computer or service laptop through a legacy RS-232 port. The device translates logic-level UART signals into RS-232-compatible signaling and back again, allowing a +5 V control board to retain the established console interface without external bipolar supplies. Designers should verify the supported data rate and propagation timing from the official datasheet because those values were not included in the retrieved excerpts. Keep the interface section physically separated from sensitive analog circuitry and provide connector-side protection when the cable leaves the instrument.
Recomendado
Battery-Powered Embedded System
MAX232CWE+ can be used in a battery-powered embedded system when the host operates from a regulated +5 V rail and the external interface must remain RS-232. Its verified 4.5 V to 5.5 V supply range avoids the need for a separate ±12 V generator, while the MAX220-MAX249 family description specifically identifies applications where ±12 V is unavailable. The practical trade-off is that RS-232 signaling and external cable protection still require careful power-budget review. Confirm quiescent current, shutdown behavior, and charge-pump capacitor requirements from the manufacturer datasheet before final battery-life calculations.
Recomendado
Serial Debug Adapter
MAX232CWE+ is appropriate for a compact serial-debug adapter that exposes a conventional RS-232 port to a host while the adapter logic operates from a single +5 V supply. The two transmitters and two receivers provide more than the minimum single UART path, allowing the adapter to route transmit, receive, or auxiliary control signals if the host connector defines those functions. The board should preserve the exact MAX232 pin functions, place external capacitors close to the IC, and terminate unused pins according to the datasheet. Because the retrieved data does not provide maximum data rate or propagation delay, high-speed debug links must not be assumed without further verification.
Recomendado
Data Acquisition and Control Link
MAX232CWE+ can bridge a data-acquisition controller to older RS-232 instruments when both sides require a wired, point-to-point serial link. Its dual transmitter and dual receiver organization supports multiple signal directions in one 16-pin package, while the 4.5 V to 5.5 V supply simplifies integration with digital control hardware. For acquisition systems, keep the RS-232 traces away from high-impedance sensor and analog paths, maintain a defined ground reference, and use connector-side surge or ESD protection according to the installation environment. Verify timing and logic thresholds against the actual system UART before production release.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MAX232CWE+ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MAX232CWE | MAX232EIDWR | MAX232DWR | MAX232EESE+T | SP232ACT-L/TR |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | MaxLinear |
| Package | 16-pin wide SOIC | 16-pin wide SOIC | 16-pin wide SOIC | 16-pin wide SOIC | 16-pin wide SOIC | 16-pin SOIC |
| RS-232 Interface | Dual full RS-232 transceiver | MAX232 family RS-232 interface | MAX232 family RS-232 interface | MAX232 family RS-232 interface | MAX232 family RS-232 interface | SP232A RS-232 interface |
Principais diferenciais
- Single-supply RS-232 implementation (vs MAX232CWE)
- Dual-channel interface density (vs SP232ACT-L/TR)
- Established MAX232 family compatibility path (vs MAX232EIDWR)
Notas de projeto
Design the MAX232CWE+ rail from the verified 4.5 V to 5.5 V supply requirement and ensure the source can support both logic-side and charge-pump current requirements. Place the external charge-pump capacitors close to the pins specified by the manufacturer datasheet. Because the retrieved material does not provide capacitor values or current limits, do not select those components from memory; verify them in the official data sheet before layout release.
Keep the RS-232 connector, protection network, and transceiver in one compact interface section. Route the cable-side traces away from clocks, ADC inputs, and sensitive analog nodes, and provide a continuous ground reference between the board and the connected RS-232 equipment. Confirm the exact wide-SOIC land pattern and pin numbering because the verified data identifies WSOIC-16 but does not provide a pinout table in the supplied excerpts.
Do not treat every MAX232 or RS-232 transceiver as an automatic drop-in replacement. Check pin functions, supply range, receiver thresholds, driver output levels, propagation delay, maximum data rate, charge-pump capacitor values, and package dimensions. The verified cross-reference results identify same-package candidates, but they do not quantify every difference; obtain the official datasheets and run signal-integrity and fault-tolerance checks before substitution.
Informações de conformidade
The supplied verified excerpts do not state RoHS, REACH, lead-free, halogen-free, conflict-mineral, or AEC-Q100 status. Compliance should be confirmed using the manufacturer product page and current material declarations.
