MAX232ECPE+ - 120kbps 5V RS-232 Transceiver | Analog Devices
N.º de pieza: MAX232ECPE+ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
MAX232ECPE+ Descripción general
An RS-232 transceiver is an interface IC that bridges a digital logic system and a serial communications port. RS-232 uses single-ended, bipolar signaling in which logic levels are represented by positive and negative voltages relative to ground. Within the electronics hierarchy, the MAX232ECPE+ is an interface IC, an RS-232 transceiver, a line driver and receiver pair, and ultimately a semiconductor communication component. It is commonly placed between a UART, microprocessor, controller, or service connector and an external RS-232 port.
Key verified features include two transmit channels and two receive channels, operation from one 4.5V to 5.5V supply, and support for data rates up to 120kbps. Distributor and manufacturer-family sources identify the MAX232E line as meeting EIA/TIA-232E and CCITT V.28 requirements when loaded. The device also offers 15kV ESD protection according to distributor descriptions, improving interface robustness against electrostatic discharge encountered during cable connection or industrial use.
The MAX232ECPE+ uses integrated charge-pump circuitry to generate the positive and negative voltage levels needed by RS-232 drivers from the single low-voltage supply. Receivers convert the incoming bipolar RS-232 signal into a digital level compatible with the connected logic system. Exact pin names, electrical limits, propagation timing, and capacitor values should be confirmed in the manufacturer data sheet before layout because those details were not included in the supplied verified excerpts.
Typical applications include legacy RS-232 service consoles, instrumentation, point-of-sale equipment, industrial controllers, and adapter boards that connect TTL/CMOS UART devices to DB9 or other RS-232 connectors. The 120kbps capability is suitable for moderate-speed serial links, while the 5V supply simplifies integration with established digital systems. For new designs, the MAX233 family may be attractive when eliminating external charge-pump capacitors is more important than retaining the MAX232E footprint and feature set.
When designing the interface, connect the charge-pump capacitors and supply bypassing capacitors exactly as specified by the manufacturer. Keep the RS-232 connector-side nets away from sensitive analog and high-speed digital traces, and provide the connector ground as a short, robust return path. ESD protection helps, but it does not replace correct signal routing, chassis grounding, or system-level surge protection.
This page combines verified manufacturer and distributor references, cross-reference results, packaging information, application guidance, and design cautions to support faster component selection. It deliberately distinguishes verified electrical facts from values that require confirmation from the complete data sheet, helping engineers avoid treating incomplete search snippets as a substitute for the manufacturer specification.
Alternativas directas para MAX232ECPE+ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MAX233ECPE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX232ACPE
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX232EEPE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
ST232BD
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
SP3232EBCP
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX232ECPE+ Especificaciones
| Device Type | Dual RS-232 transceiver |
| Transmit Channels | 2 |
| Receive Channels | 2 |
| Supply Voltage Range | 4.5V to 5.5V |
| Maximum Data Rate | 120kbps |
| Supported Standards | EIA/TIA-232E and CCITT V.28 |
| ESD Protection | 15kV HBM |
| Charge Pump | Integrated charge-pump circuitry |
| Negative Supply Requirement | No separate negative supply; external capacitors required |
| Logic Compatibility | TTL/CMOS interface |
| Encapsulado | 16-pin PDIP, 0.300 inch, 7.62mm |
| Tipo de montaje | Through-hole |
| Estado RoHS | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
Guía de configuración de pines de MAX232ECPE+ 16-pin pdip, 0.300 inch, 7.62mm
Configuración de pines para MAX232ECPE+ (encapsulado 16-pin pdip, 0.300 inch, 7.62mm). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para MAX232ECPE+.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MAX232ECPE+ es adecuado para 6 aplicacións: RS-232 Service Console, Industrial Instrumentation Interface, Point-of-Sale Terminal, Legacy Equipment Adapter Board, Data Acquisition and Test Equipment, Embedded UART to RS-232 Bridge.
RS-232 Service Console
The MAX232ECPE+ fits between a TTL/CMOS UART and an external RS-232 service connector in legacy equipment. Its two transmitters and two receivers support bidirectional serial communication, while the verified 120kbps rating is suitable for many diagnostic and configuration links. Place the IC between the logic supply and the connector-side interface, route the RS-232 nets away from sensitive logic, and verify the complete datasheet pinout before layout. Its single 4.5V to 5.5V supply simplifies integration with established 5V controller platforms, although charge-pump capacitors and exact logic thresholds must be implemented exactly as specified.
Recomendado
Industrial Instrumentation Interface
MAX232ECPE+ can connect a controller or instrument to a legacy RS-232 master, meter, or service port when the link operates at or below 120kbps. The verified EIA/TIA-232E and CCITT V.28 compatibility provides a defined basis for selecting the interface family. Use a firm ground connection and controlled cable routing because 15kV HBM ESD protection does not replace industrial surge and chassis-protection design. Confirm the exact operating temperature, receiver thresholds, and external capacitor values from the manufacturer data sheet before using it in temperature- or safety-critical equipment.
Recomendado
Point-of-Sale Terminal
The MAX232ECPE+ is suitable for legacy point-of-sale peripherals that expose a serial RS-232 port. Its dual-channel arrangement allows separate transmit and receive paths, and its 120kbps capability covers many peripheral protocols. Keep the connector-side ground and signal traces physically robust, since user-accessible cables can introduce ESD and transients. The 5V supply requirement may require a level-compatible arrangement in systems built around 3.3V logic, so verify thresholds before connecting directly to a modern UART.
Recomendado
Legacy Equipment Adapter Board
MAX232ECPE+ is a practical choice when adding a modern controller board to equipment with an older RS-232 connector. The 16-pin PDIP package supports through-hole assembly and repair-friendly prototype construction, while the two receive and two transmit channels provide flexibility for multi-function serial ports. The adapter must preserve the original charge-pump capacitor arrangement and logic-level requirements. Compare candidate replacements such as MAX233 only after checking whether eliminating external capacitors is acceptable and whether the candidate package and pinout are truly identical.
Recomendado
Data Acquisition and Test Equipment
MAX232ECPE+ can serve as the RS-232 interface for test equipment, data loggers, and laboratory instruments that communicate with a host computer. Its 120kbps limit is appropriate for many command and measurement-control protocols, but it is not a substitute for a higher-speed differential interface such as RS-422 or RS-485. Keep the transceiver close to the connector and provide a low-impedance ground return to reduce susceptibility to cable noise. Verify the receiver input range and logic thresholds in the full manufacturer specification before connecting instrumentation with unusual signal levels.
Recomendado
Embedded UART to RS-232 Bridge
The MAX232ECPE+ provides the electrical bridge between a TTL/CMOS UART and a wired RS-232 port, allowing an embedded controller to use a legacy host or peripheral link. Its dual-channel architecture supports both directions of communication, and the 5V supply range fits systems designed around 5V logic. The 120kbps ceiling must be respected during firmware and cable selection. Use the manufacturer’s recommended capacitor values and placement, and confirm that the UART’s logic levels match the transceiver thresholds before production release.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MAX232ECPE+ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MAX233ECPE+ | MAX232ACPE | MAX232EEPE+ | ST232BD | SP3232EBCP |
|---|---|---|---|---|---|---|
| Package | 16-pin PDIP, 0.300 inch, 7.62mm | PDIP-16 candidate; exact mechanical details require datasheet confirmation | PDIP-16 | PDIP-16 candidate; exact mechanical details require datasheet confirmation | PDIP-16 candidate; exact mechanical details require datasheet confirmation | PDIP-16 candidate; exact mechanical details require datasheet confirmation |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | STMicroelectronics | MaxLinear |
| Interface Type | Dual RS-232 transceiver | RS-232 transceiver | RS-232 transceiver | RS-232 transceiver | RS-232 transceiver | 3.3V-oriented RS-232 transceiver |
Diferenciadores clave
- Single-supply RS-232 operation (frente a ST232BD)
- External charge-pump implementation (frente a MAX233ECPE+)
- Verified family data-rate positioning (frente a MAX232AEUE+)
Notas de diseño
Use the MAX232ECPE+ only within its verified 4.5V to 5.5V supply range. Place the required supply-bypass capacitor close to the supply pin and follow the manufacturer’s charge-pump capacitor values and polarity. The RS-232 line drivers generate bipolar voltage internally, so do not assume that the IC can be powered directly from a 3.3V rail. Confirm logic thresholds before connecting it to a modern low-voltage UART.
Route connector-side RS-232 signals away from clocked logic, ADC inputs, and other sensitive analog nets. Keep the transceiver near the connector, use a continuous ground reference, and minimize loop area around the charge-pump and bypass connections. Through-hole DIP assembly can make prototype repair straightforward, but the PCB still needs adequate clearance around the connector, shield, and chassis-ground path to prevent ESD-related damage.
Do not treat MAX233, ST232BD, or SP3232EBCP as confirmed drop-in replacements based only on the cross-reference snippets. MAX233 changes the external charge-pump requirement, while ST232BD is highlighted for 3.3V-tolerant inputs and SP3232EBCP is described as a 3.3V-oriented alternative. Verify package drawings, pin names, supply range, timing, capacitor values, and logic thresholds against the exact candidate datasheet before substituting.
Información de cumplimiento
The supplied verified search results identify the MAX232E family and distributor listings but do not provide verified RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements. Compliance must be confirmed from the current manufacturer product documentation.
