DP83826IRHBR - 10/100 Ethernet PHY | Texas Instruments
料号： DP83826IRHBR ✓ 量产中DP83826IRHBR 概述
An Ethernet PHY is the physical-layer interface between a network controller and twisted-pair cabling. It converts digital frames supplied by an Ethernet MAC into electrical signals for 10BASE-T or 100BASE-TX links, while receiving and decoding incoming signals. Within the network hierarchy, the DP83826IRHBR is an Ethernet interface IC and physical-layer transceiver below the MAC controller, suitable for industrial Ethernet, factory automation, embedded control, and real-time communications equipment.
Verified device information identifies a 10/100 Mbps data rate, MII interface, enhanced operating mode, and industrial temperature range of -40°C to 85°C. The device is supplied in a 32-pin VQFN RHB package with a 5 mm by 5 mm footprint. The MII interface provides a conventional parallel connection to an Ethernet MAC, allowing the PHY to be paired with suitable embedded processors or industrial network controllers.
The DP83826 family emphasizes deterministic and low-latency operation as stated by Texas Instruments. These characteristics are relevant to industrial networks where variable communication delay can affect machine timing, motion control, monitoring, or supervisory systems. Its low-power design also makes it suitable for embedded equipment where Ethernet connectivity must be added without imposing the operating cost and switching noise of higher-rate alternatives.
Typical use cases include industrial Ethernet controllers, factory automation equipment, industrial switches, programmable logic controllers, test systems, and embedded control panels. In these systems, the DP83826IRHBR can bridge an MII-capable MAC to a 10BASE-T or 100BASE-TX copper network while operating across the full industrial temperature interval. System designers should still validate cable reach, magnetic-component selection, clocking, termination, and network timing against the manufacturer documentation.
The most important PCB consideration is the high-speed analog and digital interface implementation around the PHY. Place network magnetics and supporting passives according to the reference layout, keep copper paths compact, provide clean supply and ground connections, and observe the required decoupling arrangement. Those measures help control return-path discontinuity, coupling, and signal-integrity degradation around the MII and copper-network interfaces.
This page consolidates the verified manufacturer identity, ordering information, package details, temperature range, pricing reference, cross-reference results, and practical design considerations for DP83826IRHBR. It also distinguishes documented facts from parameters that require confirmation in the full Texas Instruments datasheet, helping engineers make faster but more defensible Ethernet-PHY selections.
直接替换替代料： DP83826IRHBR ——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： DP83826IRHBR （相同外形与封装尺寸） ——差异在于 Host Interface, Package, Latency Characteristic, Power Characteristic, RoHS Status.
DP83826ERHBR
✅ 直接替换联系询价
查看数据手册 →DP83826IRHBR 规格参数
| 数据速率 | 10/100 Mbps |
| Ethernet Standard Support | 10BASE-T and 100BASE-TX |
| Host Interface | MII |
| Operating Mode | Enhanced mode |
| Latency Characteristic | Low and deterministic latency |
| Power Characteristic | Low-power operation |
| Industrial Temperature Range | -40°C to 85°C |
| 封装 | 32-pin VQFN RHB |
| Package Dimensions | 5 mm × 5 mm |
| 引脚数量 | 32 pins |
| 安装类型 | Surface mount |
| Media Support | 10BASE-T and 100BASE-TX twisted-pair Ethernet |
DP83826IRHBR 5 mm × 5 mm 引脚配置指南
DP83826IRHBR（5 mm × 5 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： DP83826IRHBR.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83826IRHBR 适用于 6 应用s: Factory Automation Ethernet Endpoints, Industrial Sensor and Monitoring Networks, Programmable Logic Controllers, Embedded Real-Time Control Systems, Test and Measurement Equipment, Embedded Linux Network Appliances.
Factory Automation Ethernet Endpoints
The DP83826IRHBR fits factory automation endpoints that require deterministic 10/100 Mbps communication over copper Ethernet. Its documented industrial temperature range of -40°C to 85°C suits equipment operating across controlled plant environments, while the MII interface provides a direct path to a compatible Ethernet MAC. In a programmable logic controller or industrial controller, the PHY can support 10BASE-T and 100BASE-TX links without requiring a gigabit network. The principal benefit is predictable low-latency behavior, which is valuable when supervisory messages must be scheduled alongside machine-control traffic. Designers should verify MII clocking, magnetics, termination, and supply requirements in the current datasheet, then validate round-trip timing on the completed network.
推荐
Industrial Sensor and Monitoring Networks
The DP83826IRHBR is applicable to industrial sensor gateways and monitoring nodes that connect an embedded controller to a 10BASE-T or 100BASE-TX network. Its -40°C to 85°C operating range aligns with equipment installed outside climate-controlled spaces, and the low-power, low-latency positioning supports compact control cabinets. The MII interface allows a network processor or controller to manage frame transmission while the PHY handles the electrical copper-link layer. Compared with a gigabit PHY operating in a constrained installation, the part supports the two rates most commonly required for sensor traffic. Engineering validation should include cable length, magnetic isolation, ground potential differences, packet timing, and recovery behavior under cable faults.
推荐
Programmable Logic Controllers
The DP83826IRHBR can provide the physical Ethernet layer for a programmable logic controller requiring deterministic 10/100 Mbps connectivity and an industrial temperature range. The verified -40°C to 85°C specification supports use in industrial control hardware, and the MII interface can complement a controller or FPGA that already implements an Ethernet MAC. At 10BASE-T or 100BASE-TX, the PHY addresses conventional copper-network links used for programming, supervisory control, and machine-to-machine communication. Its low-latency emphasis can help maintain predictable control-system response times. Designers must confirm voltage levels, MII clocking mode, isolation requirements, magnetics, and the relationship between PHY registers and the host controller before hardware release.
推荐
Embedded Real-Time Control Systems
The DP83826IRHBR is well matched to embedded real-time control systems where communication timing must remain predictable. The device provides a 10/100 Mbps PHY with low, deterministic latency, an MII host interface, and operation from -40°C to 85°C. It can connect a real-time processor to a 10BASE-T or 100BASE-TX control network for configuration transfer, diagnostics, and supervisory commands. Choosing 100BASE-TX supports higher traffic volume than 10BASE-T while remaining aligned with many industrial installations. The trade-off is that the part does not provide 1 Gbps throughput, so high-bandwidth data should be segmented or stored locally. Firmware and network design should account for PHY management, link timing, and bounded latency assumptions.
推荐
Test and Measurement Equipment
The DP83826IRHBR supports test and measurement equipment that needs a compact 10/100 Mbps Ethernet data path. The MII interface allows a test processor or instrument controller to connect to laboratory and production networks, while enhanced mode and low deterministic latency align with automated equipment that exchanges commands and results. Its industrial temperature range of -40°C to 85°C also supports use in production-floor test systems, not only laboratory instruments. Depending on the required protocol and isolation, designers may pair the PHY with a USB-to-Ethernet bridge or another embedded interface. Verification should cover reset timing, link negotiation, clock-domain relationships, packet-loss behavior, grounding, and the enclosure's external Ethernet filtering requirements.
推荐
Embedded Linux Network Appliances
The DP83826IRHBR can serve as the Ethernet physical layer in an embedded Linux gateway or network appliance requiring 10BASE-T or 100BASE-TX connectivity. Its MII interface suits processors that include or pair with a compatible Ethernet MAC, while the 32-pin 5 mm by 5 mm VQFN RHB package supports compact board layouts. The low-power and deterministic-latency characteristics are useful in unattended edge nodes, data concentrators, and remote monitoring gateways. Since the verified data does not state operating-current values or exact power consumption, system thermal and energy budgets must be calculated from the complete datasheet. Integration also requires a validated Linux PHY driver, correct MII timing configuration, suitable magnetics, and PCB layout that follows the manufacturer's reference design.
推荐
推荐产品汇总
工程参考数据： DP83826IRHBR ——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 | DP83826ERHBR |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 32-pin VQFN RHB | 32-pin VQFN RHB |
| Product Family | DP83826I | DP83826E |
关键差异点
- Documented industrial temperature positioning （对比 DP83826ERHBR)
- Explicit enhanced-mode feature positioning （对比 DP83826ERHBR)
- Low deterministic latency for industrial networking （对比 DP83826ERHBR)
设计说明
Implement the copper-side network interface using the manufacturer reference layout. Keep the DP83826IRHBR, magnetics, termination network, and their ground connections close together, while maintaining a continuous return path. The 32-pin VQFN RHB device and its MII traces require careful fanout and decoupling; confirm exposed-pad connection and thermal-via requirements against the current datasheet before fabrication.
Treat MII timing and the Ethernet differential pairs as separate high-speed design concerns. Use the specified MII clock source and timing configuration, provide series damping where recommended, and keep parallel MII routing short. Ethernet differential routing should preserve controlled impedance and symmetry. Because the supplied verified excerpts do not include trace-length or impedance values, use the current Texas Instruments design guidance rather than estimating them.
Provide local low-impedance decoupling at the supply pins and connect the exposed thermal pad as directed by the package documentation. MII and Ethernet-interface circuitry can be sensitive to supply noise and ground disturbance, so star-route or plane-connection methods should be selected to minimize shared return paths with noisy circuitry. Verify required voltage rails, sequencing, current limits, and startup behavior in the complete datasheet before schematic release.
Do not treat a shared package family as proof of immediate substitution. DP83826ERHBR is a close candidate, but the verified excerpt does not establish its full temperature rating, register compatibility, or pin-level differences. Compare the ordering tables, pin descriptions, electrical characteristics, management interface, and reference circuits before replacing DP83826IRHBR. Also avoid using the 115-page third-party copy as the sole authority when an updated manufacturer PDF is available.
合规信息
The verified search excerpt mentions RoHS and REACH in its comparison of DP83826IRHBR and DP83826ERHBR, but it does not provide explicit compliance values. Compliance fields therefore remain unknown rather than assuming status from the product family.
