DP83934CVUL-33 - 33MHz 10Base-T Ethernet Controller | TI
部品番号: DP83934CVUL-33 ✓ 生産中DP83934CVUL-33 概要
An Ethernet network interface controller, or NIC, connects a host processor to a physical network. The DP83934 belongs to the SONIC-T controller family and combines network packet handling with twisted-pair physical-layer connectivity. Its parallel interface makes it suitable for embedded systems and industrial equipment that use a processor bus rather than a serial Ethernet PHY arrangement. The integrated 10Base-T PHY reduces the number of external network-interface components required in a legacy 10 Mb/s design.
The principal identifiable features of the DP83934CVUL-33 are its 33 MHz controller clock, 10Base-T network support, parallel interface, 4.75 V to 5.25 V supply range, and 140 mA supply current. The -33 suffix identifies the clock configuration, while CVUL identifies the commercial temperature grade and 160-pin PQFP configuration. The supplied 28 x 28 mm package offers adequate pin density for parallel bus, memory-interface, clock, reset, interrupt, and network-related connections.
This controller is based on the SONIC-T systems-oriented architecture, an integrated design that places Ethernet packet processing and twisted-pair interface support in one device. Such integration can simplify board partitioning when an existing system already uses the SONIC register and DMA programming model. Direct replacement is nevertheless more dependent on software and board continuity than package similarity alone: register access, interrupt behavior, DMA behavior, and initialization sequences must be compatible with the host processor and existing firmware.
Typical applications include legacy 10Base-T industrial controllers, embedded Ethernet gateways, print servers, terminal servers, set-top equipment, and embedded communication systems designed around a parallel host bus. The DP83934CVUL-33 is most appropriate when an existing platform depends on the SONIC-T programming model and the 10Base-T twisted-pair interface. New designs should also evaluate newer Ethernet controllers or PHYs when 100Base-TX, gigabit Ethernet, or a serial Media Independent Interface is required.
For implementation, begin with the manufacturer's pin-description and reference-circuit information, then verify every signal voltage, termination arrangement, and crystal or clock requirement against the board design. The 140 mA supply-current figure and 5 V operating range should be included in the power-budget calculation. Commercial availability, lifecycle status, and long-term sourcing commitments should be confirmed before starting a new production design.
This page combines package, electrical, application, cross-reference, and design-placement information in one engineering reference. It also distinguishes genuine same-package alternatives from broader Ethernet-controller alternatives whose interfaces or packages differ, helping designers avoid treating functional similarity as proof of drop-in compatibility.
ドロップイン代替品: DP83934CVUL-33 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
DP83934CVUL-20
✅ ドロップイン価格はお問い合わせください
データシートを見る →DP83934CVUL-25
✅ ドロップイン価格はお問い合わせください
データシートを見る →DP83934CVUL-33 仕様
| Controller Type | Network Interface Controller (NIC) |
| Network Standard | 10Base-T |
| Controller Clock | 33 MHz |
| Host Interface | Parallel |
| Physical Layer Interface | 10Base-T twisted-pair interface |
| Supply Voltage Range | 4.75 V to 5.25 V |
| 電源電流 | 140 mA |
| 動作温度範囲 | 0°C to 70°C |
| Temperature Grade | Commercial |
| パッケージ | 160-pin PQFP, 28 x 28 mm |
| 実装タイプ | Surface mount |
| Packaging | Tube |
DP83934CVUL-33 160-pin pqfp, 28 x 28 mm ピン配置ガイド
DP83934CVUL-33 (160-pin pqfp, 28 x 28 mm パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: DP83934CVUL-33.
詳細は データシート をご参照ください。
主な用途
DP83934CVUL-33 の用途: 6 件s: Legacy 10Base-T Industrial Controllers, Embedded Terminal Servers, Print Server Equipment, Embedded Network Gateways, Industrial Communication Equipment, Set-Top and Embedded Communications.
Legacy 10Base-T Industrial Controllers
The DP83934CVUL-33 fits embedded industrial controllers that retain a SONIC-compatible parallel host bus and require 10Base-T twisted-pair connectivity. Its 33 MHz controller clock supports the target device's operating characteristics, while the 4.75 V to 5.25 V supply range aligns with conventional 5 V equipment. Integrating the 10Base-T PHY can simplify a board centered on one controller rather than separate MAC and PHY devices. The commercial 0°C to 70°C range suits controlled indoor equipment, but it should not be assumed adequate for extended-temperature cabinets. Firmware, bus timing, DMA operation, and connector isolation must be validated against the existing platform.
おすすめ
Embedded Terminal Servers
The DP83934CVUL-33 can support a terminal-server design that connects a host processor to a legacy 10Base-T network through a parallel processor bus. The controller's 10Base-T PHY, 33 MHz clock, and 5 V operating range align with established embedded communications equipment. Its 160-pin PQFP footprint offers numerous dedicated controller and bus signals but requires careful routing to preserve timing and isolate analog network connections. A redesign should confirm that the host software supports the SONIC-T register set, DMA model, and interrupt behavior. For new terminal products requiring faster links, a newer 100Base-TX or gigabit controller may offer a better lifecycle path.
おすすめ
Print Server Equipment
The DP83934CVUL-33 is suitable for legacy print-server hardware where the host processor relies on a parallel SONIC-T interface and the external network is limited to 10Base-T. Combining packet handling and twisted-pair PHY functionality reduces the number of network devices on the board, while the 140 mA supply-current figure provides a starting point for the 5 V power budget. The 160-pin PQFP package supports the numerous parallel signals associated with this architecture. Designers must review clocking, memory-interface timing, interrupt routing, and the manufacturer's reference circuitry. New products should evaluate faster Ethernet options when print throughput or network segmentation requirements exceed 10 Mb/s.
おすすめ
Embedded Network Gateways
The DP83934CVUL-33 can serve as the Ethernet controller in a legacy gateway designed around a 33 MHz SONIC-T clock and a parallel host processor interface. The integrated 10Base-T PHY avoids a separate physical-layer component on a board whose primary function is protocol conversion or data exchange. Its 4.75 V to 5.25 V operating range suits established 5 V logic platforms, while the commercial temperature grade constrains deployment to appropriately controlled environments. A successful implementation depends on matching the existing initialization routine, DMA behavior, interrupt structure, and network connector requirements. For gateways needing higher throughput, modern Ethernet PHYs with serial interfaces are usually easier to integrate into new processor designs.
おすすめ
Industrial Communication Equipment
The DP83934CVUL-33 is appropriate for maintained commercial-grade communication equipment that communicates over 10Base-T and retains a SONIC-compatible host interface. Its 140 mA supply current is a useful starting point for the controller rail, and the 160-pin PQFP package provides dedicated connectivity for a processor bus and network functions. Integration should include examination of clock jitter, bus timing, ground partitioning, and the twisted-pair network implementation described by Texas Instruments. Because the stated 0°C to 70°C range does not cover harsh industrial environments, enclosure temperature and thermal rise must be checked. A replacement design may favor an industrial-temperature Ethernet PHY with a serial MII or RMII interface.
おすすめ
Set-Top and Embedded Communications
The DP83934CVUL-33 fits established set-top or embedded communications platforms that use 10Base-T, a 33 MHz SONIC-T controller clock, and a parallel processor bus. The integrated PHY can simplify a design requiring a complete 10 Mb/s Ethernet endpoint, and the 5 V supply range aligns with conventional embedded logic. Designers must preserve the expected clock configuration, bus timing, DMA programming model, and interrupt behavior when replacing or populating the device. The 160-pin PQFP package also requires adequate PCB routing resources and careful treatment of the network interface. Products requiring multicast-heavy traffic, secure network features, or speeds above 10 Mb/s should assess newer Ethernet controller families rather than extending this legacy architecture.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: DP83934CVUL-33 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | DP83934CVUL-20 | DP83934CVUL-25 |
|---|---|---|---|
| Package | 160-PQFP (28 x 28 mm) | 160-PQFP (28 x 28 mm) - same | 160-PQFP (28 x 28 mm) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Controller Clock | 33 MHz | 20 MHz | 25 MHz |
| Network Standard | 10Base-T | 10Base-T | 10Base-T |
| Host Interface | Parallel | Parallel | Parallel |
| Temperature Grade | Commercial | Commercial | Commercial |
| Physical Layer | Integrated 10Base-T twisted-pair interface | 10Base-T twisted-pair interface | 10Base-T twisted-pair interface |
主な差別化要因
- Higher controller clock within the same CVUL family （vs DP83934CVUL-20)
- Higher controller clock within the same CVUL family （vs DP83934CVUL-25)
- Integrated SONIC-T controller and 10Base-T PHY （vs DP83848CVJR-3)
設計ノート
Budget the controller from the stated 140 mA supply-current specification and the 4.75 V to 5.25 V operating range. Include tolerance, startup demand, processor-bus current, and regulator headroom in the complete 5 V rail design. Place the regulator and local decoupling so switching and digital return currents do not share narrow paths with the controller's supply pins. Confirm capacitor voltage ratings, effective capacitance, and placement against the manufacturer reference circuit.
Use the manufacturer's 160-pin PQFP land pattern and pin-description table rather than a generic QFP footprint. Route the parallel host bus with controlled impedance and minimize stub lengths, especially if the existing platform operates near the 33 MHz controller timing assumptions. Separate processor-side and network-side return paths where practical. Review package orientation, pin 1 identification, exposed thermal behavior, and assembler-specific footprint tolerances before releasing the PCB.
Do not treat DP83934CVUL-20 or DP83934CVUL-25 as frequency-neutral substitutions. Their lower clocks can change bus timing, initialization assumptions, and expected performance, even though the CVUL package family is retained. Verify the manufacturer's configuration procedure, interrupt timing, DMA behavior, and any clock-dependent settings. A functional Ethernet feature match is not sufficient evidence that the original firmware will operate unchanged.
Follow the manufacturer's twisted-pair interface and reference-circuit guidance for network-side routing, return paths, and connector implementation. Avoid introducing long stubs or splitting the network return path beneath the controller. Review clock-source tolerance and jitter against the 33 MHz requirement before release. If the PCB is a revision of an existing product, compare every network-side component and connection with the original design because the Ethernet magnetics and physical interface are not interchangeable without validation.
The commercial operating range is 0°C to 70°C, and the internal junction temperature can rise above ambient in a sealed enclosure. Estimate enclosure temperature, controller dissipation, and PCB heat spreading at the highest expected ambient temperature. Avoid relying on package copper alone without considering airflow and neighboring heat sources. If the assembly can exceed the commercial rating, select an appropriately qualified controller rather than relying on the PQFP package to solve the thermal requirement.
コンプライアンス情報
The device is identified as a commercial-temperature 10Base-T Ethernet controller. No explicit RoHS, REACH, lead-free, halogen-free, or conflict-minerals declaration was included in the product information used for this page.
