DP83843BVJE/NOPB - 10/100 Ethernet PHY | Texas Instruments
MPN： DP83843BVJE/NOPB ✓ 啟用中DP83843BVJE/NOPB 概覽
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.
直接替換替代品，適用於 DP83843BVJE/NOPB — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： DP83843BVJE/NOPB （相同外形與佔位） — 差異在於 100BASE-X Support, 10BASE-T Support, Package, Product Type, Supported Ethernet Speed.
DP83843BVJE
✅ 直接替換聯絡詢價
查看資料表 →DP83843BVJE-3A
✅ 直接替換📋 參考替代品（不在目錄中）
DP83843BVJE/NOPB 規格
| 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 |
| 封裝 | 80-pin QFP (NNC) |
| Package Dimensions | 14 x 14 mm |
| 腳位數 | 80 pins |
| 安裝類型 | Surface mount |
| 工作溫度 | 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 腳位配置指南
DP83843BVJE/NOPB（14 x 14 mm 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： DP83843BVJE/NOPB.
請參閱 資料表 以查看完整腳位配置。
典型應用
DP83843BVJE/NOPB 適用於 6 應用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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
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.
推薦
推薦產品摘要
工程參考資料，適用於 DP83843BVJE/NOPB — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | 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 |
主要差異化特點
- Maintains the same Ethernet physical-layer function and pinout as the documented DP83843BVJE alternative (對比DP83843BVJE)
- Supports copper, fiber, and AUI-oriented physical-media options (對比DP83843BVJE-3A)
- Combines 10BASE-T and 100BASE-X in one 10/100-Mbps PHY family (對比DP83843BVJE)
設計說明
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.
合規資訊
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.
