SN65173D - Quad Differential Line Receiver | Texas Instruments
N.º de pieza: SN65173D ✗ Fin de vidaSN65173D Descripción general
A differential line receiver is an interface IC that compares two complementary signal lines and converts their voltage difference into a logic-level output. In the broader semiconductor hierarchy, the SN65173D belongs to the receiver category, then to line-driver and transceiver interface ICs, and ultimately to interface semiconductors. Differential signaling rejects common-mode noise, reduces sensitivity to ground offsets, and supports reliable data transfer over cables or backplanes. A quadruple receiver consolidates four channels into one package, reducing board area when several links share a communications subsystem.
The principal feature of the SN65173D is its four-channel differential input arrangement with 3-state outputs. The 3-state output capability permits the receiver outputs to be placed into a high-impedance state when the shared bus is disabled, allowing multiple devices to share a data path under suitable bus-management conditions. Its monolithic construction provides four receivers on one die, while the compact 16-pin package supports conventional surface-mount assembly. The manufacturer identifies the D package as available in taped-and-reel form.
The SN65173 family is designed for balanced multipoint data transmission where common-mode rejection is important. Its applications include industrial control networks, data-processing equipment, test systems, and interfaces using differential signaling. Compatibility with the listed EIA/TIA and ITU recommendations provides an established framework for signal voltage, loading, and bus behavior. Exact input thresholds, common-mode range, propagation delay, output timing, enable logic, and supply-current limits should be confirmed in the manufacturer datasheet before final circuit sign-off.
Typical uses include industrial serial links, data-acquisition equipment, instrumentation interfaces, and embedded control systems. In a multi-drop bus, the receiver can monitor a differential pair at a remote device while retaining a tri-state output for controlled bus participation. Designers should confirm that all attached transmitters, receivers, terminations, and grounding arrangements satisfy the applicable standard, particularly on long cables or electrically noisy factory environments.
A principal design consideration is the distinction between receiver enable and bus-driver enable. The SN65173D is a receiver only, so it requires a separate line driver when the design must transmit on the same physical bus. Its differential inputs and single-ended logic outputs also require an intentional grounding and signal-integrity strategy. Use the datasheet pin-description and typical-application diagrams when assigning traces and logic functions, and check timing margins across the complete transmitter-to-receiver path.
This page consolidates the verified package, temperature, receiver-function, family-option, and application information into a design-oriented reference. It also identifies the closest package-compatible alternatives, highlights the distinction between receiver-only and transceiver solutions, and provides comparison and implementation guidance that helps engineers select the correct device before PCB layout.
Alternativas directas para SN65173D — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
SN75173D
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
SN65173D Especificaciones
| Receiver Type | Quadruple differential line receiver |
| Number of Channels | 4 channels |
| Output State Capability | 3-state outputs |
| Architecture | Monolithic |
| Rango de temperatura de funcionamiento | -40°C to +85°C |
| Encapsulado | 16-pin small-outline integrated-circuit package (16-SOIC) |
| Tipo de montaje | Surface mount |
| Shipping Format | Taped and reel |
| Differential Input Channels | 4 differential input pairs |
| Standards Referenced by Family | TI A/EIA-422-B, TIA/EIA-423-B, TIA/EIA-485-A, and ITU recommendations |
Guía de configuración de pines de SN65173D 16-pin small-outline integrated-circuit package (16-soic)
Configuración de pines para SN65173D (encapsulado 16-pin small-outline integrated-circuit package (16-soic)). 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 SN65173D.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
SN65173D es adecuado para 6 aplicacións: Industrial RS-485 Monitoring, Data-Acquisition Interface, Industrial Control Backplane, Instrumentation and Test Equipment, Communication Equipment, Remote Sensor Interface.
Industrial RS-485 Monitoring
The SN65173D fits industrial monitoring nodes that receive four balanced data channels from sensors, remote I/O modules, or machine controllers. Its four differential receivers reduce the number of packages needed on a multi-channel acquisition board, while the -40°C to +85°C specification supports equipment operating beyond the 0°C lower limit of the SN75173D option. The 3-state outputs can support controlled bus sharing when the system enables receivers only during valid intervals. Designers should confirm common-mode limits, input thresholds, enable polarity, and propagation delay against the manufacturer electrical tables before placing it on a long industrial cable.
Recomendado
Data-Acquisition Interface
The SN65173D can serve as the receive section of a laboratory or industrial data-acquisition system carrying four complementary differential signals from analog front ends, converters, or remote instruments. Differential inputs help reject common-mode noise present on long interconnects, while four channels per package conserve board area. The receiver provides 3-state outputs for systems that need controlled participation in a shared logic bus. Timing margin must be evaluated across the transmitter, cable, receiver propagation delay, and sampling device, and the external input network should follow the datasheet's recommended termination and protection arrangements.
Recomendado
Industrial Control Backplane
The SN65173D is suitable for receiving differential command or status channels in an industrial control backplane where cable routing and ground offsets can introduce noise. Its four receiver channels provide a compact interface between balanced bus wiring and single-ended control logic, and the -40°C to +85°C range supports factory-floor equipment. The 3-state output behavior should be used only with a deliberate enable strategy that prevents multiple outputs from driving one node simultaneously. Verify signal polarity, input thresholds, supply sequencing, and unused-pin treatment from the family datasheet before schematic release.
Recomendado
Instrumentation and Test Equipment
The SN65173D can convert four differential measurement or communication links into logic signals within precision test and measurement equipment. Its monolithic four-channel construction reduces component count compared with four single-receiver packages, and the balanced-input architecture helps preserve signal integrity in systems with long internal cables. The receiver does not perform analog measurement, so it should be positioned after suitable transducers or data converters. Engineers should account for propagation delay in calibration and trigger paths, use short return paths, and confirm that the electrical limits of the complete test interface match the family datasheet.
Recomendado
Communication Equipment
The SN65173D is appropriate for communication equipment that monitors four balanced incoming links, including peripheral buses, remote modules, and baseband interfaces. Quadruple integration gives the board multiple receive channels in one 16-pin SOIC footprint, while differential signaling improves noise immunity relative to a single-ended receiver. The 3-state outputs can support shared-bus arrangements when enable timing is properly coordinated. The design must remain within the family's referenced interface recommendations, and the exact operating region must be checked because the SN65173D is a receiver rather than a combined transceiver.
Recomendado
Remote Sensor Interface
The SN65173D can receive four differential sensor or actuator command channels arriving from a remote field node. Its balanced inputs help preserve signal integrity when sensor cabling introduces noise or ground-potential variation, while the extended -40°C to +85°C range supports industrial environments. The device should be paired with protection, filtering, and grounding appropriate to the cable length and electromagnetic environment. Because the outputs are tristated, firmware or hardware sequencing should prevent contention when multiple receiver nodes connect to a shared signal bus, and input thresholds should be verified before selecting external attenuation.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para SN65173D — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | SN75173D |
|---|---|---|
| Receiver Configuration | Quadruple differential line receiver | Quadruple differential line receiver |
| Number of Channels | 4 channels | 4 channels |
| Output State Capability | 3-state outputs | 3-state outputs |
| Package | 16-SOIC (D package) | 16-SOIC (D package) |
| Brand | Texas Instruments | Texas Instruments |
| Operating Temperature Range | -40°C to +85°C | 0°C to +70°C |
| Shipping Format | D package available taped and reeled | D package available taped and reeled |
| Supported Interface References | TI A/EIA-422-B, TIA/EIA-423-B, TIA/EIA-485-A, and several ITU recommendations | TI A/EIA-422-B, TIA/EIA-423-B, TIA/EIA-485-A, and several ITU recommendations |
| Architecture | Monolithic | Monolithic |
Diferenciadores clave
- Broader specified operating temperature range (frente a SN75173D)
- Four receive channels consolidated in one package (frente a SN75173D)
- Receiver-only design simplifies node partitioning (frente a SN65HVD37D)
Notas de diseño
Do not treat the SN65173D as a bidirectional RS-485 transceiver. It is a receive-only device, so a design that must transmit on the same physical bus also needs a line driver or a transceiver. Confirm enable polarity and the exact electrical state of each output from the datasheet before using the 3-state capability for bus sharing.
Route each differential pair together with consistent geometry and minimize stubs, vias, and branch lengths. Provide a nearby return-path reference and follow the manufacturer's recommended input network. On long cables, add protection and filtering components selected from the applicable interface requirements rather than relying on receiver robustness alone.
Place the required bypass capacitors close to the supply and ground pins, and keep return current out of sensitive signal paths. Verify startup behavior, supply tolerance, output enable sequencing, and current limits from the manufacturer electrical-characteristics tables. The verified 16-SOIC option does not by itself define a thermal limit for a particular board, so copper placement and ambient conditions must be evaluated after the complete electrical design is known.
Differential receivers reject common-mode noise but do not correct timing or cable problems. Budget the combined transmitter delay, line propagation, receiver delay, connector delay, and downstream sampling margin. For multi-drop buses, verify termination, stub length, driver enable control, and receiver contention against the cited EIA/TIA and ITU interface recommendations.
Información de cumplimiento
The verified material does not provide explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations for SN65173D. AEC-Q100 is not applicable because the product is not identified as an automotive-qualified device.
