MC1488M - Quad EIA-232D Driver, SOIC-14 | onsemi
N.º de pieza: MC1488M ✓ ActivoMC1488M Descripción general
An EIA-232D line driver is a transmitter within the broader interface IC and RS-232 transceiver categories. Its role is to convert logic-level transmit signals into bipolar voltage levels suitable for EIA-232D communication links. The MC1488M contains four independent driver channels, allowing one package to support multiple serial-data outputs in equipment such as modems, computer interfaces, industrial communications equipment, and legacy peripheral systems.
The principal features of the MC1488M include four driver channels, typical current-limited output capability of ±10 mA, a 300 Ω minimum power-off source impedance, and EIA-232D interface conformance. Its 14-pin SOIC package supports surface-mount PCB assembly while reducing the footprint required by a discrete transistor driver arrangement. The M suffix identifies the surface-mount ordering variant presented by onsemi.
Internally, the MC1488M combines four line-driver stages with supply-voltage protection arrangements described in the associated device literature. Its monolithic construction provides a practical alternative to separate transistor or MOSFET driver circuits. Because the output stage is designed to source and sink current rather than operate as a logic-level CMOS output, the circuit should be evaluated as an EIA-232D interface stage, not as a general-purpose push-pull logic driver.
Typical uses include four-channel RS-232 transmit ports, data terminal equipment, data communications equipment, printer interfaces, and industrial data links. Designers combining this driver with a receiver can construct a complete asymmetric RS-232 interface. The component is especially relevant to legacy systems that require more than two independently driven EIA-232D outputs while retaining a surface-mount footprint.
The primary design consideration is the external interface network and supply arrangement. EIA-232D implementations commonly use series resistors and capacitive or diode-clamped protection to manage transient conditions, while supply bypassing must be placed close to the device. Engineers should also verify receiver compatibility, cable requirements, logic levels, and all electrical limits against the manufacturer datasheet before substituting the part into a live design.
This product page consolidates the verified manufacturer and distributor information for MC1488M with package details, sourcing guidance, practical design notes, and a strict assessment of available drop-in alternatives. Where the supplied source material does not establish an exact same-package replacement, the page identifies that limitation instead of presenting an unverified substitution as drop-in compatible.
Alternativas directas para MC1488M — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
No hay alternativas directas disponibles para este producto.
Solicitar alternativasMC1488M Especificaciones
| Device Type | Quad line EIA-232D driver |
| Driver Channel Count | 4 channels |
| Receiver Channel Count | 0 channels |
| Interface Standard | EIA-232D |
| Output Current | ±10 mA typical |
| Power-Off Source Impedance | 300 Ω minimum |
| Package Type | 14-pin SOIC |
| Package Code | EIAJ-14 |
| Tipo de montaje | Surface mount |
Guía de configuración de pines de MC1488M eiaj-14
Configuración de pines para MC1488M (encapsulado eiaj-14). 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 MC1488M.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
MC1488M es adecuado para 6 aplicacións: Legacy RS-232 Transmit Ports, Data Terminal Equipment, Data Communications Equipment, Printer and Peripheral Interfaces, Industrial Control Interfaces, Instrumentation and Test Equipment.
Legacy RS-232 Transmit Ports
The MC1488M is appropriate for legacy systems that require several EIA-232D transmit outputs but only one shared receive function. Its four current-limited driver channels provide typical ±10 mA output capability within a single 14-pin SOIC package. Place the device between the host logic and the external serial interface, then use the required series resistors and protection network to limit transient energy. Compared with four discrete driver circuits, the monolithic device reduces package count and repeated routing. Designers must verify the host logic thresholds, supply voltage, cable length, and receiver load because those details are not established by the supplied search excerpts.
Recomendado
Data Terminal Equipment
The MC1488M fits data terminal equipment requiring multiple EIA-232D outputs for control, status, and data channels. Its four driver channels and 14-pin surface-mount package simplify implementation compared with four separate output stages. The verified ±10 mA typical current-limited output is suited to the EIA-232D driver role, while the 300 Ω minimum power-off source impedance must be considered when interfaces can remain externally biased. In a complete terminal design, route each driver through the protection components specified by the interface reference and ensure that all logic signals remain within the device's unverified input thresholds.
Recomendado
Data Communications Equipment
The MC1488M can support transmit-only channels in data communications equipment that uses EIA-232D signaling. Its monolithic four-channel structure allows one package to drive multiple connector signals, while the 14-pin SOIC package supports compact surface-mount layouts. The implementation should use the manufacturer's recommended supply bypassing and external line-driver protection. Because the supplied material does not state operating-temperature, supply-voltage, or data-rate limits, equipment intended for industrial temperature ranges or high-speed links must be qualified against the complete datasheet before release.
Recomendado
Printer and Peripheral Interfaces
The MC1488M is useful in legacy printer and peripheral interfaces that need more than one EIA-232D transmit signal. Four drivers can handle command, status, or auxiliary outputs from a controller, provided the logic levels and timing are compatible. The surface-mount 14-pin package reduces board area compared with discrete driver implementations. Add the customary series resistance and protection to each externally accessible line, and verify that the connected peripheral does not violate the driver's current limits. The verified ±10 mA typical output and 300 Ω minimum power-off source impedance are the principal electrical characteristics available for preliminary design work.
Recomendado
Industrial Control Interfaces
The MC1488M may be used in industrial control equipment with legacy EIA-232D command or status outputs, subject to temperature and EMC qualification. Its four independent driver channels consolidate multiple low-rate serial outputs into a surface-mount IC, and its current-limited output stages are appropriate to the transmitter function. The completed design should include local supply decoupling, controlled ground-return routing, and external protection for connector-borne transients. Engineers should not infer industrial or automotive qualification from the part family alone; operating-temperature range, ESD performance, and AEC-Q100 status remain unresolved in the supplied data.
Recomendado
Instrumentation and Test Equipment
The MC1488M can provide four EIA-232D transmit channels in instrumentation, control consoles, and test systems where separate receive circuitry is already available. Its compact SOIC-14 package preserves board space, while the quad organization simplifies repeated driver routing. Connect the outputs through the established EIA-232D protection network and observe the verified 300 Ω minimum power-off source impedance when considering powered or grounded test equipment. Because maximum data rate, supply range, and operating temperature are absent from the supplied excerpts, instrument developers must consult the full manufacturer document before setting baud rate or environmental test limits.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para MC1488M — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Package | 14-pin SOIC (EIAJ-14) |
| Brand | onsemi |
| Device Function | Quad EIA-232D line driver |
| Driver Channels | 4 channels |
| Receiver Channels | 0 channels |
| Output Current | ±10 mA typical |
| Power-Off Source Impedance | 300 Ω minimum |
| Interface Standard | EIA-232D |
| Mounting Type | Surface mount |
Diferenciadores clave
- Four transmit drivers in one package (frente a MAX232DR)
- Dedicated EIA-232D line-driver function (frente a MC3486DR)
- Surface-mount integration (frente a MC1488)
Notas de diseño
Place the required supply bypass capacitor close to the MC1488M power terminal and return it to the device ground reference with a short, low-inductance path. The supplied excerpts do not specify the capacitor value or allowable supply range, so those values must be taken from the manufacturer datasheet and the transient requirements of the surrounding system. Do not assume that a nearby regulator can replace correct local bypassing, especially when several EIA-232D outputs switch simultaneously.
Do not treat MC1488M as a logic-level output device. It is an EIA-232D line driver with typical current-limited output of ±10 mA and a specified minimum power-off source impedance of 300 Ω. Use the manufacturer-recommended external resistors and protection network on connector-facing lines, and verify that signals from powered external equipment cannot force the output beyond its absolute maximum ratings.
Keep the four transmit paths short and maintain a continuous ground reference beneath the SOIC-14 device. Route connector-facing protection components close to the connector so transient current is diverted before it reaches the IC. Avoid placing sensitive high-impedance analog traces alongside the EIA-232D outputs, and route power and signal returns independently where practical to reduce common-impedance coupling.
Información de cumplimiento
The supplied search results did not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations for MC1488M. The manufacturer datasheet and current onsemi product documentation should be checked before making a compliance claim.