DP83934CVUL-20 - 25MHz Ethernet NIC | Texas Instruments
料号： DP83934CVUL-20 ✗ 停产DP83934CVUL-20 概述
A network interface controller, or NIC, connects a processor or bus-based embedded system to an Ethernet network. The DP83934 belongs to the systems-oriented Ethernet controller family and combines a dedicated Ethernet data path with host-bus and twisted-pair connectivity. Its SONIC-T architecture separates network processing from the host bus, allowing demanding 32-bit systems to exchange packets without handling low-level Ethernet protocol work in the host processor.
The principal operating characteristics include a 25 MHz controller clock, a selectable 16-bit or 32-bit host data path, and a 4.75 V to 5.25 V supply range. The 32-bit path doubles the parallel transfer width relative to the 16-bit option, while BMODE configuration supports little-endian systems and big-endian systems. The twisted-pair interface connects the controller to an Ethernet physical layer, and the manufacturer identifies the component as a systems-oriented network interface controller.
The DP83934CVUL-20 is supplied in a 160-pin PQFP package and is packaged in a tube according to the distributor specification. Its comparatively high pin count provides dedicated parallel data, control, address, interrupt, and network-interface signals, reducing multiplexing and supporting a broad host-bus interface. The 140 mA supply-current specification describes the device's 5 V operating domain, while the 4.75 V to 5.25 V range provides conventional tolerance around a nominal 5 V rail.
Typical applications include industrial Ethernet control equipment, embedded test systems, legacy 32-bit communications controllers, printed-circuit network interfaces, and embedded platforms that require a wide parallel host bus. The controller is especially relevant when an existing system already uses the SONIC-T interface and its associated software model. Modern designs with USB or compact embedded Ethernet links may instead favor newer interface architectures with smaller packages and lower host processing overhead.
Board design should preserve the controller's synchronous bus timing, provide clean 5 V power, and route high-speed host and network signals with short, controlled paths. Differential Ethernet conductors should be routed as a pair with continuous reference planes, while reset, clock, and timing-critical signals require attention to datasheet timing constraints. Because this is a 160-pin PQFP device, fanout and escape routing demand a multilayer PCB and careful via planning around the fine-pitch package perimeter.
This product record combines the manufacturer's controller description with package, interface, voltage, current, bus-width, and ordering information. It also provides drop-in replacement guidance, application-specific design considerations, and a parameter comparison intended to accelerate legacy Ethernet controller design, maintenance, and component-obsolescence reviews.
直接替换替代料： DP83934CVUL-20 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： DP83934CVUL-20 （相同外形与封装尺寸）.
DP83934CVUL-25
✅ 直接替换联系询价
查看数据手册 →DP83934CVUL-20 规格参数
| Controller Type | Network Interface Controller (NIC) |
| Controller Architecture | SONIC-T Systems-Oriented Network Interface Controller |
| Controller Clock | 25 MHz |
| Host Data Path | 16-bit or 32-bit |
| Host Bus Endianness | Little Endian or Big Endian |
| Ethernet Interface | Twisted Pair |
| Supply Voltage Range | 4.75 V to 5.25 V |
| 电源电流 | 140 mA |
| 封装 | 160-pin PQFP |
| Packaging | Tube |
| 安装类型 | Surface Mount |
| Data Bus | Parallel |
DP83934CVUL-20 160-pin pqfp 引脚配置指南
DP83934CVUL-20（160-pin pqfp 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： DP83934CVUL-20.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83934CVUL-20 适用于 6 应用s: Industrial Ethernet Control Systems, Embedded Test and Measurement Equipment, Legacy Network Interface Card Designs, Telecommunications Network Interfaces, Factory Automation Data Acquisition, Long-Lifecycle Communications Equipment.
Industrial Ethernet Control Systems
The DP83934CVUL-20 fits legacy industrial Ethernet controllers that use a 16-bit or 32-bit parallel host bus rather than a compact serial Ethernet interface. Its 25 MHz SONIC-T architecture handles packet processing in dedicated hardware while the host communicates through a wide parallel data path. Operation from 4.75 V to 5.25 V supports established 5 V control hardware, although the 160-pin PQFP requires multilayer routing and careful clock and power distribution.
推荐
Embedded Test and Measurement Equipment
A SONIC-T Ethernet controller can provide deterministic host-bus access for test instruments and automated measurement platforms that already have compatible drivers. The DP83934CVUL-20 supports selectable 16-bit and 32-bit paths, so it can match either legacy bus width without changing the Ethernet controller architecture. The 25 MHz clock and dedicated packet handling reduce host-side protocol overhead, while designers must preserve timing margins and cleanly terminate the parallel bus.
推荐
Legacy Network Interface Card Designs
The DP83934CVUL-20 is appropriate for maintaining or cloning a network interface card built around the SONIC-T architecture. Its selectable 16-bit or 32-bit data path and configurable little-endian or big-endian operation support several established host-computer interfaces. A revised design should reproduce the original timing, reset, interrupt, and transceiver arrangement while checking the 4.75 V to 5.25 V supply range and 140 mA supply-current specification.
推荐
Telecommunications Network Interfaces
The wide parallel host interface makes the DP83934CVUL-20 suitable for telecommunications equipment that requires dedicated Ethernet packet handling within a 32-bit system. Little-endian and big-endian bus selection allows integration with different processor conventions, and the twisted-pair interface supports connection through an external physical layer. For new telecom platforms, compare this controller with current Ethernet devices because its 160-pin PQFP and parallel bus can consume substantial board area.
推荐
Factory Automation Data Acquisition
Factory automation controllers can use the DP83934CVUL-20 to connect a 32-bit control processor to an Ethernet network through a dedicated twisted-pair interface. The dedicated SONIC-T architecture can offload packet handling, while the selectable data width supports both 16-bit and 32-bit host buses. The design must account for industrial temperature limits, EMC layout, isolation requirements, and whether the product's maturity makes a newer Ethernet controller more appropriate for a new platform.
推荐
Long-Lifecycle Communications Equipment
The DP83934CVUL-20 can support long-lifecycle communications equipment that retains a SONIC-T software model and parallel bus architecture. Its 25 MHz Ethernet controller operates from 4.75 V to 5.25 V and is housed in a 160-pin PQFP, allowing an existing qualified platform to continue using a known controller architecture. Lifecycle planning should verify the exact suffix, temperature grade, supply status, and availability before approving continued production.
推荐
推荐产品汇总
工程参考数据： DP83934CVUL-20 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DP83934CVUL-25 |
|---|---|---|
| Controller Type | SONIC-T systems-oriented Ethernet NIC | DP83934 SONIC-T Ethernet controller |
| Controller Clock | 25 MHz | 25 MHz |
| Host Data Path | 16-bit or 32-bit | 16-bit or 32-bit |
| Ethernet Interface | Twisted Pair | Twisted Pair |
| Package | 160-pin PQFP | 160-pin PQFP - same |
| Brand | Texas Instruments | Texas Instruments |
| Ordering Suffix | -20 | -25 |
关键差异点
- Dedicated wide parallel Ethernet controller （对比 DP83934CVUL-25)
- Little-endian and big-endian host support （对比 DP83934CVUL-25)
- Dedicated twisted-pair controller position （对比 DP83867IRRGZR)
设计说明
Use a multilayer board with a continuous ground plane and route the wide host bus through controlled impedance. The 160-pin PQFP requires deliberate escape routing around all four package sides; avoid long point-to-point stubs and use via structures that preserve the intended trace geometry. Keep clock routing short and symmetrical, and verify host-bus timing at the far endpoint of the board rather than only at the controller.
Provide a regulated 5 V rail within the device's 4.75 V to 5.25 V operating range. Place high-frequency decoupling close to the supply and ground pins, then follow the manufacturer datasheet for bulk capacitance and power-entry arrangements. The listed 140 mA supply current is a useful design input, but actual rail demand, transients, and nearby subsystem loads should be evaluated separately before sizing the supply.
Route twisted-pair conductors as a controlled differential pair with a continuous reference plane and no unnecessary stubs or test-point discontinuities. Keep the network interface away from switching supplies and unrelated high-current paths. Since the controller is a parallel-bus device, control the clock, reset, interrupt, and bus skew through matched routing and a deliberate topology rather than relying only on default autorouting rules.
Do not substitute a generic Ethernet PHY for the SONIC-T controller or assume that another controller with a similar function has the same host interface. Check the complete ordering suffix, package pin count, bus width, endianness support, timing, reset behavior, and transceiver arrangement before substitution. For DP83934CVUL-20 maintenance work, verify that system firmware contains the matching SONIC-T driver and host-bus assumptions.
合规信息
Compliance declarations were not identified in the manufacturer document or product information associated with this record.
