DP83936AVUL-25 - 25MHz Ethernet Controller | Texas Instruments
料号： DP83936AVUL-25 ✓ 量产中DP83936AVUL-25 概述
An Ethernet network interface controller, or NIC, connects a computer or embedded system to an Ethernet physical layer. The DP83936AVUL belongs to the SONIC-T family of systems-oriented network interface controllers, combining packet-processing hardware with a parallel host-bus interface and twisted-pair network connectivity. This architecture allows network communication to be implemented in 32-bit and 16-bit systems without relying on a software-driven standard network interface.
The principal operating features include a 25 MHz clock configuration, full-duplex operation, a 32-bit non-multiplexed address and data bus, and an integrated twisted-pair interface path. The 4.75 V to 5.25 V operating range is compatible with conventional 5 V digital equipment, while the approximately 140 mA supply current provides a defined basis for power-budget calculations. Its parallel interface gives system designers direct access to the controller's internal descriptor, packet, and buffer resources.
The DP83936AVUL family was designed for high-speed 32-bit and 16-bit systems in which deterministic host-bus access and direct Ethernet packet handling are important. The 160-lead package provides a large number of address, data, control, interrupt, network, and power connections, supporting integration with systems that use a non-multiplexed parallel architecture. Its operating frequency is the principal distinction among the DP83936AVUL-20, DP83936AVUL-25, and DP83936AVUL-33 configurations.
Typical applications include industrial embedded controllers, data-acquisition equipment, laboratory instruments, print servers, industrial networking equipment, and legacy-compatible embedded systems requiring a parallel-bus Ethernet controller. In these systems, the DP83936AVUL can manage Ethernet packet traffic while the host processor accesses transmit and receive buffers through the parallel bus. The external twisted-pair interface also requires suitable magnetics and network-line implementation in the final design.
A key design consideration is that this controller uses a high-pin-count package and a parallel host bus, so routing, termination, decoupling, and signal-integrity planning require more PCB attention than a compact serial-interface Ethernet device. Follow the manufacturer's pin-description and layout guidance in the DP83936AVUL datasheet, place bypass capacitors close to the supply pins, and use a multilayer board with a continuous ground reference when routing the address and data buses.
This product record combines the manufacturer's family description, exact operating specifications, package information, source links, application engineering guidance, and a careful assessment of replacement constraints. It also distinguishes the 25 MHz device from frequency variants while avoiding unsupported claims about lifecycle, environmental ratings, and pin-level functions.
直接替换替代料： DP83936AVUL-25 ——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： DP83936AVUL-25 （相同外形与封装尺寸） ——差异在于 Network Interface, Operating Frequency, Package Type.
DP83934CVUL-33
✅ 直接替换联系询价
查看数据手册 →DP83936AVUL-25 规格参数
| Controller Type | Ethernet network interface controller |
| Product Family | SONIC-T systems-oriented network interface controller |
| Operating Frequency | 25 MHz |
| Duplex Operation | Full duplex |
| Network Interface | Twisted-pair interface |
| Host Interface | 32-bit non-multiplexed address and data bus |
| Supported System Architectures | 32-bit and 16-bit systems |
| Supply Voltage Range | 4.75 V to 5.25 V |
| 电源电流 | 140 mA |
| Package Type | 160-PQFP |
| Package Dimensions | 28 mm x 28 mm |
| Packaging | Tube |
DP83936AVUL-25 28 mm x 28 mm 引脚配置指南
DP83936AVUL-25（28 mm x 28 mm 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： DP83936AVUL-25.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83936AVUL-25 适用于 6 应用s: Industrial Embedded Ethernet Controller, Data-Acquisition System Networking, Laboratory Instrument Controller, Print Server and Network Peripherals, Legacy-Compatible Embedded Platform, Factory Automation Gateway.
Industrial Embedded Ethernet Controller
The DP83936AVUL-25 fits an industrial embedded controller that needs direct access to Ethernet packet resources through a 32-bit non-multiplexed parallel bus. Its 25 MHz SONIC-T operating configuration supports high-speed 32-bit and 16-bit host architectures, while full-duplex operation allows simultaneous network traffic. The 4.75 V to 5.25 V supply is compatible with conventional 5 V embedded systems. Because the controller uses a 160-PQFP package, the design must provide careful high-pin-count routing and bypass placement. Confirm the temperature grade and environmental qualification for the target enclosure before production use.
推荐
Data-Acquisition System Networking
The DP83936AVUL-25 can provide a dedicated Ethernet path in a data-acquisition system whose host processor uses a wide parallel bus. The controller's 32-bit non-multiplexed address and data interface reduces the need for serialized host transactions, while the twisted-pair interface supports connection through standard external network magnetics. At approximately 140 mA and a 4.75 V to 5.25 V supply, the device allows a straightforward power-budget estimate. Layout should emphasize a continuous ground plane, short supply connections, and controlled host-bus routing to prevent data errors during packet transfers.
推荐
Laboratory Instrument Controller
The DP83936AVUL-25 is suitable for laboratory instruments whose internal controller uses a parallel host bus and needs a dedicated Ethernet network interface. Its full-duplex SONIC-T architecture can manage network packet traffic while the host accesses transmit and receive resources, and the 25 MHz configuration supports demanding 32-bit system designs. The device is most attractive for an established platform requiring continuity with the original controller architecture. New instruments may favor smaller or serial-interface Ethernet solutions, but those choices can require substantial board-layout and driver revisions.
推荐
Print Server and Network Peripherals
The DP83936AVUL-25 can serve as the network-control element in a print server or specialized network peripheral built around a 32-bit parallel processor bus. Its non-multiplexed address and data interface gives the host processor direct access to Ethernet descriptors and packet buffers, while full-duplex operation supports simultaneous command traffic and data transfer. The 160-PQFP footprint demands a multilayer board, extensive fanout routing, and careful clock distribution. For a new compact product, a controller with a serial interface and reduced package size may simplify construction, but migration requires driver and firmware development.
推荐
Legacy-Compatible Embedded Platform
The DP83936AVUL-25 is a practical choice when extending a legacy embedded platform that already uses the SONIC-T controller and its 32-bit non-multiplexed host interface. Retaining the established controller can preserve system-level behavior while the 25 MHz suffix matches the required timing configuration. The main engineering challenge is the 160-PQFP footprint: routing, soldering, test access, and thermal performance all require attention even though the component itself is a digital interface IC. Confirm electrical equivalence, pin assignments, and software compatibility before reusing the controller in a revised board.
推荐
Factory Automation Gateway
The DP83936AVUL-25 can support a factory automation gateway designed around a parallel-bus processor and an Ethernet uplink. Its full-duplex Ethernet controller operation supports simultaneous communications with supervisory systems, while the 32-bit non-multiplexed bus enables direct packet-buffer access. The 4.75 V to 5.25 V operating range and approximately 140 mA supply current support 5 V power planning. A production design must still verify operating-temperature requirements, isolation strategy, electromagnetic compatibility, and regulatory approvals for the complete gateway; the IC qualification alone does not establish compliance for the finished product.
推荐
推荐产品汇总
工程参考数据： DP83936AVUL-25 ——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-33 |
|---|---|---|
| Package | 160-PQFP (28 mm x 28 mm) | 160-QFP |
| Brand | Texas Instruments | Texas Instruments |
| Nominal Clock | 25 MHz | 33 MHz |
| Clock Difference | 25 MHz reference | 33 MHz, 32% higher than 25 MHz |
| Controller Type | SONIC-T Ethernet controller | Network controller |
关键差异点
- Exact 25 MHz operating configuration （对比 DP83934CVUL-33)
- Defined SONIC-T controller architecture （对比 DP83934CVUL-33)
- Published system-bus architecture （对比 DP83934CVUL-33)
- Documented operating and power values （对比 DP83934CVUL-33)
设计说明
The 160-PQFP package requires deliberate fanout and multilayer routing. Assign every signal from the manufacturer pin-description table, route the 32-bit non-multiplexed address and data bus on controlled-impedance layers where applicable, and avoid long stubs. Maintain a continuous ground reference beneath the device and high-speed routes to reduce return-path discontinuities and susceptibility to data errors.
Place the manufacturer's recommended bypass capacitors adjacent to the DP83936AVUL-25 supply connections and provide a low-impedance 5 V distribution path. The documented operating range is 4.75 V to 5.25 V, while supply current is approximately 140 mA. Validate the complete rail under maximum bus activity and network traffic, and include tolerance and transient margin rather than designing directly to the nominal 5 V midpoint.
Do not treat a shared package as proof of replacement compatibility. DP83934CVUL-33 is listed in a 160-QFP comparison, but its 33 MHz clock differs from the DP83936AVUL-25's 25 MHz configuration, and pin, timing, register, and software equivalence are not established. Before substitution, compare every pin, electrical timing, reset sequence, descriptor format, interrupt behavior, and driver assumptions against the manufacturer documentation.
Keep the parallel host-bus traces short and establish a consistent routing topology for address, data, and control signals. Pay particular attention to clock distribution and source-synchronous or chip-select timing requirements shown in the family datasheet. Provide test access for the dense package and avoid routing network or unrelated high-current paths through the host-bus region. Production artwork should undergo signal-integrity and timing review.
The DP83936AVUL-25 is a digital interface IC and does not have a power-semiconductor SOA requirement. Thermal design should nevertheless account for approximately 140 mA supply current, nearby PHY or magnetics components, copper available beneath the PQFP, and enclosure temperature rise. Use the package thermal information and application guidance from the manufacturer rather than assuming that a low 140 mA current guarantees low board temperature.
合规信息
Material-compliance and automotive-qualification declarations are not identified in the cited material. Obtain current declarations from Texas Instruments before using the component in regulated programs.
