MAX3232CPE+ - 3.0V to 5.5V Dual RS-232 Transceiver | Maxim Integrated
N.º de pieza: MAX3232CPE+ ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $10.5565 | $10,56 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
MAX3232CPE+ Descripción general
An RS-232 transceiver is an interface IC that bridges the voltage-domain difference between digital logic and the bipolar, noise-tolerant RS-232 standard. MAX3232 belongs to the RS-232 transceiver hierarchy, which sits above interface ICs and semiconductor devices. Its dual charge-pump design generates the positive and negative voltages required by true RS-232 while operating from a single low-voltage supply.
The key verified features include a 3.0V minimum and 5.5V maximum supply range, operation up to 1 Mbps, two drivers and two receivers, true RS-232 operation, and four external 0.1 uF charge-pump capacitors. The MAX3232CPE+ is identified by distributors as a 16-PDIP through-hole device. One distributor result also associates the family with low-power operation, making it suitable for portable and embedded systems where supply current and board area matter.
The device uses a dual charge-pump architecture with a proprietary low-dropout transmitter output stage. This architecture provides true RS-232 output levels from a single 3.0V to 5.5V supply. The required charge-pump capacitors should be placed close to their associated pins, and the external capacitor values should follow the manufacturer datasheet rather than general-purpose substitution assumptions.
Typical applications include RS-232 adapters, industrial serial controllers, test equipment, POS terminals, embedded debug ports, and communication links to legacy computers or peripherals. The two-driver, two-receiver arrangement supports bidirectional point-to-point serial links when paired with the appropriate line-side protection and connector design.
When designing a board, reserve a dedicated 16-pin PDIP footprint, route the charge-pump network close to the IC, and keep RS-232 traces away from sensitive analog or high-speed digital signals. Add appropriate transient protection according to the cable length and exposure to industrial transients; the supplied data does not specify an external protection component, so protection selection remains a board-level design decision.
This page combines distributor pricing, verified electrical facts, source links, and engineering-oriented design guidance for engineers evaluating MAX3232CPE+ procurement and implementation.
Alternativas directas para MAX3232CPE+ — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con MAX3232CPE+ (mismo factor de forma y huella) — difiere en Device Type, Maximum Data Rate, Mounting Type, Package, Supply Voltage Range.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
MAX232CPE+
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
MAX3232CPA+
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
MAX3232CPE+ Especificaciones
| Device Type | RS-232 transceiver |
| Number of Drivers | 2 |
| Number of Receivers | 2 |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Maximum Data Rate | 1 Mbps |
| External Charge-Pump Capacitors | 4 x 0.1 uF |
| Interface Standard | True RS-232 |
| Logic Compatibility | TTL/CMOS |
| Architecture | Dual charge-pump |
| Encapsulado | 16-pin PDIP |
| Tipo de montaje | Through Hole |
Guía de configuración de pines de MAX3232CPE+ 16-pin pdip
Configuración de pines para MAX3232CPE+ (encapsulado 16-pin pdip). 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 MAX3232CPE+.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MAX3232CPE+ es adecuado para 6 aplicacións: Industrial RS-232 Control Links, Embedded UART Serial Ports, Legacy Computer Peripherals, Test and Measurement Equipment, POS and Retail Terminal Interfaces, Communication and Debug Interfaces.
Industrial RS-232 Control Links
MAX3232CPE+ fits industrial serial-control links that need true RS-232 levels from a 3.0V to 5.5V logic supply. Its two drivers and two receivers support a bidirectional point-to-point connection, while the verified 1 Mbps capability provides headroom above common 115.2 kbit/s control rates. Place the four 0.1 uF charge-pump capacitors close to the IC and add cable-side transient protection appropriate to the installation environment.
Recomendado
Embedded UART Serial Ports
The MAX3232CPE+ is appropriate for embedded systems that expose a legacy RS-232 connector from a 3.3V or 5V UART. A single transceiver handles both logic-to-line driver and line-to-logic receiver functions, reducing external circuitry. Verify the UART voltage levels and connector pinout during design-in; the supplied data does not specify operating temperature or ESD limits.
Recomendado
Legacy Computer Peripherals
Use MAX3232CPE+ when an embedded controller must communicate with a legacy RS-232 peripheral or service port. The device translates between TTL/CMOS logic and true RS-232 levels, while its 1 Mbps rated operation allows higher-speed links than the traditional 115.2 kbit/s range when the connected equipment supports it. Keep the RS-232 trace away from sensitive analog circuitry.
Recomendado
Test and Measurement Equipment
MAX3232CPE+ can be used in test and measurement equipment that needs a robust RS-232 service or configuration port. The 3.0V to 5.5V supply range supports common instrument logic rails, and the dedicated RS-232 transceiver simplifies the interface compared with discrete level conversion. For bench equipment, add protection and consider cable length, grounding, and ESD exposure during the system-level design.
Recomendado
POS and Retail Terminal Interfaces
The MAX3232CPE+ is suitable for serial connectivity in point-of-sale and retail terminal equipment where a dedicated RS-232 port is required. Its dual-driver, dual-receiver organization supports the standard bidirectional RS-232 signal set, and the PDIP package facilitates through-hole assembly in products that are not constrained to ultra-small form factors. Validate grounding and transient protection for the deployed cable environment.
Recomendado
Communication and Debug Interfaces
MAX3232CPE+ can provide a wired RS-232 debug or configuration interface for boards that retain through-hole assembly. The transceiver’s single-supply operation removes the need for a separate external RS-232 line-power supply, while the charge-pump network generates the required bipolar signaling. Design the connector, grounding, and protection network with the cable environment in mind rather than treating the IC as a complete surge-protection solution.
Recomendado
Datos de referencia de ingeniería para MAX3232CPE+ — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | MAX3232CSE+ | MAX3232CWE+ | MAX232CPE+ | MAX3232CPA+ |
|---|---|---|---|---|---|
| Package | 16-pin PDIP | 16-pin SOIC | 16-pin SOIC | 16-pin PDIP | 16-pin PDIP |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Device Type | RS-232 transceiver | RS-232 transceiver | RS-232 transceiver | RS-232 transceiver family | RS-232 transceiver family |
| Mounting Style | Through Hole | SMD/SMT | SMD/SMT | Through Hole | Through Hole |
Diferenciadores clave
- Through-hole package option (frente a MAX3232CSE+)
- Verified single-supply operation (frente a MAX3232CPA+)
- True RS-232 conversion (frente a MAX232CPE+)
Notas de diseño
Connect the MAX3232CPE+ to a 3.0V to 5.5V supply within the verified operating range, and place the required 0.1 uF charge-pump capacitors close to the associated IC pins. The supplied data does not specify supply-current limits, so use the manufacturer datasheet for quiescent and load-current calculations rather than estimating from the family description.
Reserve the exact 16-pin PDIP footprint for MAX3232CPE+ and verify the pin numbering against the manufacturer datasheet before fabrication. The verified search results do not provide a complete pin table, so no pin names are asserted here. Keep the charge-pump loop compact and route RS-232 traces away from sensitive analog nodes.
Do not substitute MAX3232CSE+ or MAX3232CWE+ directly on a MAX3232CPE+ board without checking the package transition. The verified Xecor comparison identifies MAX3232CSE+ as surface-mount SOIC while MAX3232CPE+ is through-hole PDIP. Also do not assume the IC replaces external cable protection; use connector-side transient protection appropriate to the cable environment.
Treat the RS-232 connector, transceiver, and cable interface as a system-level signal-integrity and protection design. Keep high-current and switching paths away from the RS-232 output and receiver traces, provide a defined ground reference, and validate the completed board with the intended cable length and equipment grounding arrangement.
Información de cumplimiento
The supplied search results identify MAX3232CPE+ as lead-free in one generic listing, but they do not provide a reliable manufacturer compliance statement. RoHS, REACH, halogen-free, and conflict-minerals status are therefore recorded as unknown.
