DP83934AVQB - 10BASE-T Ethernet Controller | Texas Instruments
N.º de pieza: DP83934AVQB ✓ ActivoDP83934AVQB Descripción general
An Ethernet network interface controller, or NIC, is an interface IC that connects a host or embedded processor to a physical network. The DP83934AVQB belongs to the broader SONIC-T systems-oriented controller family. It combines network packet processing, physical-layer connectivity for 10BASE-T, and a parallel processor-facing interface in one component, reducing the need for separate Ethernet-interface logic in legacy embedded systems.
The verified product information identifies a 10BASE-T PHY, a parallel interface, and twisted-pair connectivity as its principal features. Its 4.75 V to 5.25 V operating-supply range is compatible with conventional 5 V embedded logic, while the 160 mA-class supply requirement makes suitable regulator capacity and supply-noise control important. The 160-pin PQFP exposes substantially more interface and control signals than a small-scale network controller.
The device is associated with the SONIC-T 25 MHz systems-oriented architecture. For a legacy network design, the controller handles Ethernet frame activity while the host accesses registers and buffers through its parallel interface. A complete implementation also requires suitable memory, clocking, isolation or magnetics, cable termination, and power-supply arrangements defined by the applicable system design.
Typical applications include industrial embedded controllers, legacy 10BASE-T network adapters, test equipment, embedded communications modules, and control systems requiring a deterministic parallel host interface. Its primary advantage is integration: one large-scale controller provides both the systems-oriented network interface and 10BASE-T physical-layer function rather than requiring a separate PHY.
Engineers should verify the exact 160-pin pinout, clock requirements, memory interface, magnetic-component recommendations, and PCB layout constraints against the manufacturer datasheet before release. The large PQFP also requires careful escape routing, and the 4.75 V to 5.25 V supply must remain within the specified range at every point in the design.
This product page consolidates the verified manufacturer and distributor information, separates confirmed electrical and packaging facts from unavailable data, documents replacement constraints, and provides application-specific engineering guidance that is not available from a distributor listing alone.
Alternativas directas para DP83934AVQB — 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.
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| Product Type | Ethernet Controller / Network Interface Controller |
| Controller Architecture | SONIC-T systems-oriented network interface controller |
| Ethernet Standard | 10BASE-T |
| Host Interface | Parallel |
| Physical Layer Interface | 10BASE-T PHY |
| Network Media | Twisted pair |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Corriente de alimentación | 140 mA |
| Nominal Supply Voltage | 5 V |
| Controller Clock | 25 MHz |
| Encapsulado | 160-pin PQFP/BQFP |
| Package Body Size | 28 x 28 mm |
| Número de pines | 160 pins |
| Tipo de montaje | Surface mount |
| Temperature Grade | Commercial |
| Packaging | Tube |
Guía de configuración de pines de DP83934AVQB 28 x 28 mm
Configuración de pines para DP83934AVQB (encapsulado 28 x 28 mm). 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 DP83934AVQB.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
DP83934AVQB es adecuado para 6 aplicacións: Legacy 10BASE-T Embedded Control, Industrial Network Interface Card, Network Test and Measurement Equipment, Embedded Communications Module, Educational Network Interface Platform, Existing SONIC-T Product Maintenance.
Legacy 10BASE-T Embedded Control
The DP83934AVQB fits legacy embedded controllers that already use the SONIC-T parallel-host architecture and require a 10BASE-T twisted-pair connection. Its 4.75 V to 5.25 V operating range matches a conventional 5 V system, while the integrated PHY avoids adding a separate Ethernet physical-layer component to an established design. The 160-pin PQFP provides access to the controller's extensive buffer, interrupt, clock, and memory signals, but it also demands careful signal escape routing. Software should retain the existing register, interrupt, and driver model rather than assume that a generic Ethernet controller is interchangeable.
Recomendado
Industrial Network Interface Card
A DP83934AVQB-based interface card can serve as the network-processing section of an industrial 10BASE-T system where a deterministic parallel interface and established SONIC-T behavior are important. The controller operates from 4.75 V to 5.25 V and has a verified supply-current figure of 140 mA, allowing the board's 5 V regulator and decoupling network to be designed around those values. Industrial use still requires verification of temperature limits, EMC performance, isolation strategy, and operating-life expectations. The 28 x 28 mm 160-pin package should be positioned to keep clock and memory routing short while preserving controlled return paths.
Recomendado
Network Test and Measurement Equipment
The DP83934AVQB can be incorporated into test equipment that must communicate over a legacy 10BASE-T network while retaining a parallel host interface to a processor or test-control logic. Its integrated 10BASE-T PHY reduces the external interface-chain count compared with a controller-only implementation, while the 4.75 V to 5.25 V supply range aligns with established 5 V instrumentation. Designers should isolate external cable-entry paths, account for the required magnetics or isolation network, and keep the parallel bus timing controlled. The supplied data does not confirm EMC or environmental qualification, so production testing must include the applicable emissions and ESD requirements.
Recomendado
Embedded Communications Module
DP83934AVQB is suitable for a communications module that bridges a 5 V embedded processor to a 10BASE-T twisted-pair network. The parallel interface permits a direct, deterministic connection to processor bus or dedicated interface logic, and the integrated 10BASE-T PHY consolidates functions that would otherwise require separate components. The 140 mA verified supply-current figure should be included in the module power budget alongside processor, memory, and transceiver loads. Layout work must preserve clock integrity, provide local supply bypassing, implement the manufacturer-recommended physical-layer network, and avoid long parallel traces through the 160-pin package fanout.
Recomendado
Educational Network Interface Platform
The DP83934AVQB can support an educational platform intended to teach Ethernet framing, media access, interrupts, and system-oriented network-controller programming. Its documented parallel host interface exposes more of the SONIC-T architecture than a compact SPI controller, making register and buffer behavior easier to study. The 4.75 V to 5.25 V supply range and 140 mA reported current also make power-budget examples straightforward for laboratory work. The 160-pin PQFP is large for introductory prototypes, however, so the board should provide generous routing area, accessible test points, and careful documentation of every power and signal connection.
Recomendado
Existing SONIC-T Product Maintenance
The DP83934AVQB is most directly applicable to maintenance of an existing SONIC-T 10BASE-T product whose board uses the 160-pin PQFP footprint and existing parallel-host software. Maintaining the original controller architecture avoids redevelopment of the host driver, network buffer logic, and physical-layer network. The 160-pin package and verified 5 V operating range support repair and continuation designs, but engineers must still audit obsolete-component risk, connector and magnetics availability, and device traceability. Because no verified drop-in substitute was found, continuity planning should focus on qualified procurement and detailed second-source qualification rather than assuming a generic cross reference.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para DP83934AVQB — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto |
|---|---|
| Package | 160-pin PQFP/BQFP, 28 x 28 mm |
| Brand | Texas Instruments |
| Controller Type | Ethernet Controller / Network Interface Controller |
| Ethernet Support | 10BASE-T |
| Host Interface | Parallel |
| Physical Layer | Integrated 10BASE-T PHY |
| Supply Voltage | 4.75 V to 5.25 V |
| Supply Current | 140 mA |
| Controller Clock | 25 MHz |
| Pin Count | 160 pins |
Diferenciadores clave
- Integrated 10BASE-T physical layer (frente a Controller-only legacy Ethernet implementations)
- Established parallel SONIC-T integration (frente a DP83932B)
- Conventional 5 V operating range (frente a Modern 3.3 V compact Ethernet controllers)
- Large-scale integration in a defined package (frente a DP83934CVUL)
Notas de diseño
Design the 5 V rail to remain between 4.75 V and 5.25 V throughout startup, load transients, and temperature extremes. The verified supply-current figure is 140 mA, but the supplied data does not identify it as typical or maximum; verify that distinction in the manufacturer datasheet before sizing the regulator. Place local high-frequency bypassing at the controller's supply pins, provide adequate bulk capacitance for board transients, and keep switching-regulator and high-current digital paths spatially separated from clock and parallel-bus routing.
Treat the 160-pin PQFP as a demanding escape-routing component. Reserve space beneath and around the package for short fanout paths, especially for the 25 MHz clock and memory interface. Maintain continuous ground-plane reference beneath high-speed routes, avoid long stubs, and follow the manufacturer layout guidance for bypass placement and interface routing. Because the supplied evidence does not include a verified pin table, do not begin layout from inferred signal positions; reconcile the official 160-pin drawing with the schematic first.
Do not treat a related SONIC-T or 10BASE-T controller as a drop-in replacement solely because the protocol is similar. The verified cross-reference result specifically says the DP83934AVQB is not a drop-in replacement for the DP83932B because of differences in register mapping and interrupt handling. Any alternative must also match the 160-pin footprint, supply range, clock arrangement, buffer and memory behavior, interrupt semantics, and physical-layer network. Validate hardware timing and restart the complete software conformance test before substitution.
A 10BASE-T implementation includes a cable-facing physical network whose magnetics, connectors, protection, and isolation strategy can materially affect emissions and immunity. Use the network components and board layout specified by the manufacturer, maintain a controlled return path for the cable interface, and provide appropriate surge and ESD protection based on the installation environment. The DP83934AVQB's 140 mA supply demand should be checked against regulator behavior during Ethernet activity, because load steps from the controller and associated physical-layer circuitry can couple into sensitive routing if bypassing is inadequate.
Información de cumplimiento
The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. The device is a commercial-grade Ethernet controller rather than an automotive-qualified AEC-Q100 product, but that conclusion does not substitute for the missing environmental declarations.
