DP83820BVUW - 1GbE PCI Ethernet Controller | Texas Instruments
Артикул: DP83820BVUW ✓ АктивенDP83820BVUW Обзор
An Ethernet controller is an interface integrated circuit that manages packet transmission, reception, media access, and host communication. Within the product hierarchy, the DP83820 belongs to Ethernet interface controllers, which combine a network-interface controller, MAC/BIU, and physical-layer interface functions. It also implements the IEEE 802.3 Ethernet standard and supports VLAN, long-frame, and 802.3x flow-control functions.
Key features include support for 10, 100, and 1000 Mb/s operation, a 1000 Base-X PHY interface, 64-bit PCI bus mastering at up to 66 MHz, and packet-descriptor DMA that reduces host-CPU processing. The device also supports VLAN-tag insertion and removal for transmitted and received packets, automatic Pause-frame transmission for full-duplex flow control, and long frames for specialized network traffic.
Technically, the DP83820 separates packet data movement from host processing through bus-mastering DMA. According to the manufacturer datasheet, the PCI interface implements version 2.2 operation with power-management support. Its supplied current is listed as 150 mA at 3.3 V, while the commercial operating range is reported as 0°C to 70°C. The 208-lead square QFP provides extensive connectivity for the PCI bus, PHY, clocks, and controls.
Typical applications include PCI Gigabit Ethernet adapter cards, industrial motherboards, embedded computing platforms, network-interface expansion boards, and legacy PCI systems requiring 1000 Base-X connectivity. Its integrated PHY support is useful when the board design uses a compatible copper or fiber-based 1000 Base-X physical layer rather than a standalone PHY arrangement.
Designers should verify the exact transceiver or medium attachment required by the 1000 Base-X interface, validate the PCI connector and termination layout against the manufacturer reference design, and confirm the operating-temperature requirement against the enclosure environment. Tube packaging is specified for the DP83820BVUW, and procurement should account for its large 208-QFP footprint and specialized legacy-PCI application.
Аналоги без доработки для DP83820BVUW — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
DP83820IVUW
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
DP83820BVUW Характеристики
| Controller Type | Ethernet Controller, MAC/BIU |
| Data Rates | 10/100/1000 Mb/s |
| Host Interface | PCI 2.2, 64-bit, up to 66 MHz |
| PHY Interface | 1000 Base-X |
| Ethernet Standard | IEEE 802.3 |
| Напряжение питания | 3.3 V |
| Ток потребления | 150 mA |
| Корпус | 208-QFP, 28 x 28 mm |
| Число выводов | 208 pins |
| Рабочая температура | 0°C to 70°C |
| Тип монтажа | Surface Mount |
| Packaging | Tube |
| VLAN Support | Tag insertion, detection, and removal |
| Flow Control | IEEE 802.3x full-duplex Pause-frame support |
| Long Frame Support | Yes |
| DMA | Bus-mastering packet and descriptor transfer |
Руководство по цоколевке DP83820BVUW в корпусе 208-qfp, 28 x 28 mm
Цоколевка для DP83820BVUW (корпус 208-qfp, 28 x 28 mm). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для DP83820BVUW.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
DP83820BVUW подходит для 6 применениеs: PCI Gigabit Ethernet Adapter Cards, Industrial Motherboards, Embedded PCI Network Expansion, Managed VLAN Network Equipment, Network Interface Expansion Cards, Legacy PCI Networking Systems.
PCI Gigabit Ethernet Adapter Cards
The DP83820BVUW fits legacy PCI Gigabit Ethernet adapter cards because it supports 10, 100, and 1000 Mb/s operation while implementing a 64-bit PCI 2.2 interface. Bus-mastering DMA transfers packet data and descriptors directly in memory, reducing host-CPU processing compared with a software-copy architecture. Its 1000 Base-X PHY interface can support a compatible 1000 Base-X medium, while VLAN tagging and 802.3x Pause-frame flow control support managed network traffic. The principal design constraint is its large 208-QFP footprint at 28 x 28 mm.
Рекомендуется
Industrial Motherboards
The DP83820BVUW is applicable to industrial motherboards whose enclosure maintains the documented 0°C to 70°C operating range. Its PCI 2.2 host interface supports 64-bit communication at up to 66 MHz, and bus-mastering DMA helps move Ethernet traffic with less host-CPU involvement. VLAN insertion, detection, and removal make the controller useful in managed networks, while automatic 802.3x Pause-frame generation helps protect full-duplex links from congestion. Validate the 1000 Base-X physical-layer implementation and PCI layout against the manufacturer reference design.
Рекомендуется
Embedded PCI Network Expansion
The DP83820BVUW can provide integrated Ethernet connectivity on embedded computing boards that expose a legacy PCI bus and require more than the 100 Mb/s capability of basic 10/100 controllers. Supporting 10/100/1000 Mb/s permits compatibility with multiple network environments, and packet-descriptor DMA reduces interrupt and processing overhead. The integrated 1000 Base-X PHY simplifies the choice of a compatible high-speed physical layer. Because the device is a 208-QFP, PCB designers must reserve adequate routing area and validate the clock, PCI, and medium-attachment circuitry.
Рекомендуется
Managed VLAN Network Equipment
The DP83820BVUW suits managed Ethernet equipment requiring VLAN-aware packet handling and full-duplex flow control. It supports VLAN-tag insertion for transmit packets and detection and removal for receive packets, allowing VLAN processing within the network interface rather than relying entirely on host software. Its IEEE 802.3x implementation can automatically transmit Pause frames based on receive-FIFO status, which helps manage congestion on 1000 Mb/s links. Designers should verify VLAN tagging behavior in system firmware and test the complete controller, PHY, switch or transceiver, and network-cable path together.
Рекомендуется
Network Interface Expansion Cards
The DP83820BVUW is appropriate for a dedicated network-interface expansion card built around the PCI 2.2 bus. Its 64-bit host interface can operate at up to 66 MHz, while bus-mastering DMA lets packet data and descriptors move without requiring the host CPU to copy every buffer. The controller supports 10/100/1000 Mb/s operation, long frames, VLAN processing, and 802.3x flow control. A 1000 Base-X PHY interface enables use with a compatible medium attachment, although the exact transceiver or cable architecture must be established before schematic capture.
Рекомендуется
Legacy PCI Networking Systems
The DP83820BVUW can add Gigabit Ethernet capability to legacy PCI systems that retain version 2.2 PCI infrastructure. The controller implements 64-bit PCI host communication, supports operation up to 66 MHz, and uses bus-mastering DMA to lower processor load during packet transfers. Its compatibility with 10 and 100 Mb/s allows operation across different Ethernet link speeds, while the 1000 Base-X PHY interface supports compatible Gigabit media. System qualification should include driver support, connector implementation, PCI signal integrity, thermal performance, and the 0°C to 70°C ambient requirement.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для DP83820BVUW — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | DP83820IVUW |
|---|---|---|
| Package | 208-QFP (28x28 mm) | 208-QFP (28x28 mm) |
| Brand | Texas Instruments | Texas Instruments |
| Controller Type | Ethernet Controller, MAC/BIU | Ethernet Controller |
| Data Rate | 10/100/1000 Mb/s | 10/100/1000 Mb/s |
| Host Interface | PCI 2.2, 64-bit, up to 66 MHz | PCI 2.2, 64-bit |
| PHY Interface | 1000 Base-X | 1000 Base-X |
| Supply Voltage | 3.3 V | 3.3 V |
| VLAN Support | Insertion, detection, and removal | Insertion, detection, and removal |
Ключевые отличия
- Integrated PCI networking controller (против LAN91C111)
- Direct same-family drop-in candidate (против DP83820IVUW)
- Host-side DMA architecture (против LAN91C111)
- Managed-network traffic support (против DP83820IVUW)
Заметки по проектированию
Follow the manufacturer reference layout for the 208-QFP device, especially PCI routing, clock distribution, supply decoupling, and the 1000 Base-X interface. The 28 x 28 mm package is physically large, so allocate adequate board area and escape-routing space. Keep high-speed clock and data nets short, maintain continuous reference planes, and confirm differential-impedance and via-transition geometry against the applicable interface implementation before release.
Design the 3.3 V rail around the verified 150 mA supply-current value while allowing margin for temperature, adjacent circuitry, and dynamic bus-mastering activity. Place local high-frequency decoupling close to the appropriate supply and ground pins using the manufacturer’s recommended network. Verify rail tolerance, sequencing, inrush, and any PCI power-management states against the complete datasheet because those detailed limits are not present in the supplied web excerpts.
Do not assume that the DP83820IVUW is interchangeable solely because it is described as pin-to-pin. Compare every power, ground, clock, reset, PCI, and PHY-related signal, including no-connect and reserved pins. Also verify the exact temperature grade and silicon revision. The LAN91C111 is not a drop-in substitute because it is a different controller class and the verified cross-reference explicitly requires design verification.
Validate PCI and 1000 Base-X signal integrity on the assembled PCB using the actual connector, medium attachment, and clock source. Check impedance, return paths, termination, skew, and compliance margins with realistic traffic. Bus-mastering DMA performance depends on a stable PCI host interface, while the quality of the 1000 Base-X link depends on the selected medium and its implementation; neither can be validated using controller specifications alone.
Информация о соответствии
The verified excerpts do not provide RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements. No compliance claim has been inferred.
