DP83843BVJE/NOPB - 10/100 Ethernet PHY | Texas Instruments
料号： DP83843BVJE/NOPB ✓ 量产中DP83843BVJE/NOPB 概述
An Ethernet PHY is a semiconductor within the physical layer of the Ethernet protocol stack. The PHY converts digital data and control signals into the electrical or optical signaling required by network media, while receiving and returning signals from the medium. A 10/100 Ethernet PHY supports both 10-Mbps and 100-Mbps operation, allowing a single physical interface to accommodate legacy and Fast Ethernet networks.
The device supports 10BASE-T and 100BASE-X Ethernet protocols through integrated PMD sublayers. Its 100BASE-X capability supports the fiber-oriented path identified by Texas Instruments, while the listed AUI support broadens the physical-media options available to the designer. This combination makes the DP83843 family useful in equipment that must bridge or interface multiple Ethernet physical-layer environments rather than using a copper-only 10/100 PHY.
The DP83843BVJE/NOPB is packaged in an 80-pin QFP (NNC), identified in the manufacturer part-details listing as a 14 x 14 mm package with a 0 to 70 C operating-temperature range. The dense 80-lead format provides numerous PHY, media, control, and power-related connections while supporting compact, surface-mount assembly. Pin assignments, exposed supply requirements, clocking provisions, and media-interface details should be taken directly from the manufacturer pin-description tables before schematic capture.
Typical uses include industrial Ethernet equipment, communications equipment, network-interface subsystems, embedded LAN designs, and legacy 10/100 infrastructure requiring a physical layer capable of copper and 100BASE-X media support. System designers should pair it with a compatible Ethernet MAC or network controller, validate media magnetics or fiber components against the selected 10BASE-T or 100BASE-X topology, and confirm that the controller interface matches the DP83843 configuration.
A key implementation consideration is that Ethernet PHY designs are sensitive to power integrity, clock quality, controlled-impedance routing, and media-interface layout. Place all required bypass capacitors close to their associated supply pins, provide a continuous return path beneath high-speed signal routes, and keep the PHY, magnetics, and connector placement coordinated to minimize differential-impedance discontinuities and coupling into sensitive analog circuitry.
This product overview consolidates the manufacturer-supported protocol capabilities, package information, sourcing guidance, comparison criteria, and practical PCB guidance needed to evaluate the DP83843BVJE/NOPB for a 10/100-Mbps Ethernet physical-layer design.
直接替换替代料： DP83843BVJE/NOPB ——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： DP83843BVJE/NOPB （相同外形与封装尺寸） ——差异在于 100BASE-X Support, 10BASE-T Support, Package, Product Type, Supported Ethernet Speed.
DP83843BVJE
✅ 直接替换联系询价
查看数据手册 →DP83843BVJE-3A
✅ 直接替换📋 参考替代料（不在目录中）
DP83843BVJE/NOPB 规格参数
| Product Type | 10/100-Mbps Ethernet PHY transceiver |
| Supported Ethernet Speed | 10/100 Mbps |
| 10BASE-T Support | Supported |
| 100BASE-X Support | Supported |
| PMD Sublayers | Integrated |
| Fiber Support | Supported |
| AUI Support | Supported |
| Transceiver Configuration | 4/4 full-duplex transceiver |
| 封装 | 80-pin QFP (NNC) |
| Package Dimensions | 14 x 14 mm |
| 引脚数量 | 80 pins |
| 安装类型 | Surface mount |
| 工作温度 | 0 C to 70 C |
| Product Lifecycle | Active |
| Ethernet Media Support | 10BASE-T, 100BASE-X, and AUI |
| Manufacturer Product Page | Texas Instruments DP83843 family |
DP83843BVJE/NOPB 14 x 14 mm 引脚配置指南
DP83843BVJE/NOPB（14 x 14 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： DP83843BVJE/NOPB.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83843BVJE/NOPB 适用于 6 应用s: Industrial 10/100 Ethernet Equipment, 100BASE-X Fiber Network Interface, Legacy 10BASE-T LAN Equipment, AUI-Connected Network Equipment, Embedded Controller Ethernet Connectivity, Communications and Network Interface Cards.
Industrial 10/100 Ethernet Equipment
The DP83843BVJE/NOPB fits industrial network-interface equipment requiring both 10BASE-T and 100BASE-X capability in one 10/100-Mbps PHY family. The manufacturer identifies integrated PMD sublayers, fiber support, and AUI support, allowing the design team to select an appropriate physical-media path without changing the Ethernet speed class. The 80-pin QFP (NNC) format provides dedicated external connectivity, but its 14 x 14 mm footprint and 0 C to 70 C rating must be accommodated during enclosure and thermal planning.
推荐
100BASE-X Fiber Network Interface
The DP83843BVJE/NOPB is appropriate for a 100BASE-X network interface because Texas Instruments explicitly lists 100BASE-X and fiber support for the device. It provides the 100-Mbps physical-layer function needed between an Ethernet controller and the selected fiber-media implementation. Designers should use the manufacturer configuration, pin-description, and timing information to establish the required operating mode, then validate the fiber-side components and signal path against the complete interface specification.
推荐
Legacy 10BASE-T LAN Equipment
The DP83843BVJE/NOPB supports 10BASE-T operation for legacy 10-Mbps Ethernet LANs while remaining compatible with 100-Mbps operation through its broader 10/100-Mbps physical-layer capability. This makes it useful in industrial controllers, communications equipment, and embedded systems that must interoperate with both 10-Mbps and 100-Mbps network segments. The controller, clocking, isolation, magnetics, and connector implementation must be validated as one complete Ethernet physical-layer design.
推荐
AUI-Connected Network Equipment
The listed AUI support gives the DP83843BVJE/NOPB a distinct role in legacy or specialized Ethernet equipment requiring an Attachment Unit Interface path. It can fit communications and industrial systems that combine a 10/100-Mbps controller with AUI-connected physical media rather than relying only on a conventional copper magnetics interface. Because AUI implementations can involve significant signal-routing and transition requirements, engineers should follow the manufacturer configuration guidance and verify cable, connector, timing, and media compatibility.
推荐
Embedded Controller Ethernet Connectivity
The DP83843BVJE/NOPB can serve as the Ethernet physical layer beside an embedded processor or communications controller that requires 10/100-Mbps connectivity. Its integrated PMD sublayers and support for 10BASE-T, 100BASE-X, and AUI provide multiple physical-interface options in one device family. The implementation must account for the 80-QFP land pattern, clock requirements, supply bypassing, controller timing, and the exact media components needed to create a compliant Ethernet connection.
推荐
Communications and Network Interface Cards
The DP83843BVJE/NOPB is suitable for communications equipment and network-interface card designs requiring a dedicated 10/100 Ethernet PHY rather than an integrated controller PHY. Its 80-pin QFP (NNC) package exposes the extensive set of connections expected in a multifunction physical-layer device. Board designers should coordinate connector placement, media components, clock routing, isolation boundaries, and power distribution so that the PHY can operate across the intended 10/100-Mbps environment.
推荐
推荐产品汇总
工程参考数据： DP83843BVJE/NOPB ——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 | DP83843BVJE | DP83843BVJE-3A |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 80-QFP (14 x 14 mm) | 80-QFP (14 x 14 mm) | 80-QFP (14 x 14 mm) |
| Ethernet Speed | 10/100 Mbps | 10/100 Mbps | 10/100 Mbps |
| 10BASE-T Support | Supported | Supported | Supported |
| 100BASE-X Support | Supported | Supported | Supported |
| PMD Sublayers | Integrated | Integrated | Integrated |
| Specialized Interface Support | Fiber and AUI support | Fiber and AUI support | Fiber and AUI support |
关键差异点
- Maintains the same Ethernet physical-layer function and pinout as the documented DP83843BVJE alternative （对比 DP83843BVJE)
- Supports copper, fiber, and AUI-oriented physical-media options （对比 DP83843BVJE-3A)
- Combines 10BASE-T and 100BASE-X in one 10/100-Mbps PHY family （对比 DP83843BVJE)
设计说明
Place the DP83843BVJE/NOPB close to the Ethernet media interface and route the media signals as controlled-impedance differential pairs where the selected physical medium requires them. Keep connector, magnetics, and isolation components away from unrelated switching nodes. Use a continuous reference plane beneath the media routes and avoid test pads or unused stubs that create impedance discontinuities.
Follow the manufacturer pin-description table to identify every supply connection and place the required bypass capacitors immediately beside their associated PHY pins. Provide low-impedance power and ground distribution so switching current from other board areas does not disturb the Ethernet transceiver. Verify startup, supply sequencing, and operating ranges against the exact DP83843BVJE/NOPB datasheet rather than assigning pins solely by function grouping.
The 80-pin QFP (NNC) package makes careful pin assignment essential. Arrange the layout so clock inputs, control signals, and each supported media path have short, predictable routes. Keep sensitive clock and analog-related nodes away from Ethernet media pairs where practical, and validate the footprint against the official NNC drawing before releasing Gerber files for the 14 x 14 mm package.
Do not treat DP83843BVJE, DP83843BVJE-3A, and DP83843BVJE/NOPB as interchangeable solely because they share the DP83843 family name. Confirm the exact ordering suffix, pin function table, clock configuration, media support, operating-temperature grade, and RoHS position. Also verify whether the board uses 10BASE-T, 100BASE-X, or AUI, because each path changes the external media components and layout requirements.
合规信息
The substitution comparison identifies DP83843BVJE/NOPB as RoHS-compliant. RoHS is not an automotive qualification, so AEC-Q100 is marked not applicable. Other environmental and material compliance attributes require confirmation from the manufacturer product documentation.
