DP83640TVV/NOPB - IEEE 1588 Ethernet PHY | Texas Instruments
MPN： DP83640TVV/NOPB ✓ 啟用中DP83640TVV/NOPB 概覽
An Ethernet physical-layer transceiver is the circuit that converts digital data into signals suitable for twisted-pair Ethernet cabling and converts received cable signals back into digital data. In the broader hierarchy, the DP83640 is an Ethernet PHY, also described as a network interface transceiver, within interface ICs and semiconductor communications equipment. Adding IEEE 1588 precision timing to a conventional PHY allows network nodes to share a more accurate system time over the Ethernet infrastructure.
The DP83640TVV/NOPB supports both MII and RMII connections to a host processor. These interfaces support integration with industrial controllers, embedded systems, test equipment, and communication equipment that already process Ethernet frames digitally. Its 10/100 Mbps capability aligns it with established copper-Ethernet networks rather than multigigabit or fiber-only designs. The 48-LQFP package provides a conventional surface-mount assembly option for industrial control boards.
Texas Instruments describes the DP83640 as a Precision PHYTER designed to provide high-precision clock synchronization for real-time industrial connectivity based on IEEE 1588. This makes the device relevant to automation systems where event timing, distributed control, monitoring, and communication between controllers depend on a shared time reference. The manufacturer product page identifies the exact MPN as an IEEE 1588 PTP Ethernet PHY transceiver.
Typical uses include industrial Ethernet controllers, synchronized automation networks, factory equipment, networked sensors, industrial communication gateways, and embedded systems performing precise event timestamping. In these systems, the DP83640 can connect an Ethernet physical layer to a host controller through MII or RMII while providing the precision-timing functions needed by IEEE 1588-aware equipment.
PCB design must account for the 48-pin LQFP footprint, controlled Ethernet magnetics, high-speed trace routing, impedance continuity, grounding, and power-supply decoupling. Designers should use the manufacturer pin-description table and reference design information when assigning signals, and should preserve the recommended component placement and layout geometry around the PHY and magnetic interface.
This product overview consolidates the exact orderable MPN, package, interface, speed, temperature, and lifecycle information with practical selection guidance, application-fit analysis, and design cautions. It also distinguishes the true same-package family variant from broader interface alternatives that do not provide verified pin-to-pin equivalence.
直接替換替代品，適用於 DP83640TVV/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： DP83640TVV/NOPB （相同外形與佔位） — 差異在於 Operating Temperature Range, Package Type, Product Type, Supply Voltage.
DP83640TVVX/NOPB
✅ 直接替換📋 參考替代品（不在目錄中）
DP83640TVV/NOPB 規格
| Product Type | IEEE 1588 precision-time protocol Ethernet PHY transceiver |
| Data Rate Support | 10 Mbps and 100 Mbps |
| Host Interface | MII and RMII |
| Number of Ports | 1 |
| 供應電壓 | 3.3 V and 2.5 V |
| Timing Standard | IEEE 1588 |
| Package Type | 48-LQFP (PT) |
| Package Dimensions | 7 mm x 7 mm |
| 腳位數 | 48 pins |
| 安裝類型 | Surface mount |
| 工作溫度範圍 | -40 °C to +85 °C |
| Cable Diagnostics | Supported |
| Fiber Support | Supported |
| JTAG Interface | IEEE 1149.1 |
DP83640TVV/NOPB 7 mm x 7 mm 腳位配置指南
DP83640TVV/NOPB（7 mm x 7 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： DP83640TVV/NOPB.
請參閱 資料表 以查看完整腳位配置。
典型應用
DP83640TVV/NOPB 適用於 6 應用s: Synchronized Industrial Automation, Industrial Communication Gateways, Networked Sensors and Measurement Equipment, Factory Test and Quality Systems, Precision Time-Sensitive Control Systems, Precision Media and Data Acquisition.
Synchronized Industrial Automation
The DP83640TVV/NOPB fits industrial automation equipment that must exchange 10/100 Mbps Ethernet data while maintaining a common, precision time reference across controllers and field devices. Its IEEE 1588 PTP capability gives the network a dedicated mechanism for synchronization, while MII or RMII allows connection to a processor without requiring a dedicated Ethernet MAC PHY. In a controller, the device can sit between the host processor and network magnetics, reducing design complexity when deterministic event timestamping is required. The -40 °C to +85 °C operating range covers many industrial environments, although the final system must verify enclosure temperature, isolation, EMC behavior, and cable implementation.
推薦
Industrial Communication Gateways
The DP83640TVV/NOPB is suitable for gateways that bridge a 10/100 Mbps Ethernet segment to another machine interface while maintaining synchronized timestamps. Its MII interface supports a host controller operating with dedicated parallel data and control lines, while RMII reduces the number of host-side signals when the system architecture permits it. IEEE 1588 support is valuable when events must be correlated across production cells, test stations, and supervisory systems. The design should keep the PHY and magnetic interface away from high-current switching stages, provide local decoupling at the supply pins, and validate Ethernet trace geometry and return paths according to the manufacturer layout guidance.
推薦
Networked Sensors and Measurement Equipment
The DP83640TVV/NOPB can provide a precision-timed Ethernet connection in networked sensors, analyzers, and measurement instruments that record events against a shared network clock. A 10/100 Mbps PHY is appropriate for measurement traffic that does not require faster Ethernet and for copper links deployed over industrial cabling. The IEEE 1588 functions strengthen timestamp correlation, while MII or RMII provides flexibility in host-processor selection. Care is required around analog and sensor circuitry: keep the Ethernet PHY, magnetics, and digital return currents spatially separated from sensitive analog sections, and use grounding and filtering strategies that prevent communications energy from coupling into measurement channels.
推薦
Factory Test and Quality Systems
The DP83640TVV/NOPB fits factory test equipment that records production events with consistent timing across multiple stations and data servers. IEEE 1588 synchronization allows test records to be compared using a shared time base rather than relying on unrelated local clocks. The device's 10/100 Mbps operation is suitable for common industrial Ethernet test networks, and MII or RMII can be matched to the controller architecture. To maintain measurement integrity, isolate Ethernet magnetics and PHY routing from sensitive analog channels, provide quiet power paths, and verify that the final synchronization accuracy is measured under realistic cable, temperature, and switching-noise conditions.
推薦
Precision Time-Sensitive Control Systems
The DP83640TVV/NOPB is appropriate for time-sensitive control systems in which multiple controllers must react to distributed events according to a consistent timeline. IEEE 1588 precision timing complements the 10/100 Mbps Ethernet data path, while the PHY's MII or RMII options support different host-controller interfaces. The Ethernet implementation remains sensitive to topology, cable characteristics, traffic loading, and oscillator behavior, so synchronization performance should be validated at the network level rather than inferred from the PHY label. Use controlled-impedance board routing, a manufacturer-aligned magnetic circuit, and verified decoupling to reduce data errors and timing perturbation.
推薦
Precision Media and Data Acquisition
The DP83640TVV/NOPB can support synchronized media acquisition and industrial data-collection systems that timestamp events as they arrive over Ethernet. Its 10/100 Mbps capability accommodates conventional copper networks and its IEEE 1588 functionality improves cross-system time correlation. RMII may simplify connections to hosts with constrained pin counts, while MII provides dedicated parallel signaling where interface timing or design flexibility is important. For acquisition systems, the Ethernet section should be partitioned from video, sensor, and high-speed analog circuitry to limit coupling. Firmware must also coordinate the host timestamp path with the PHY's synchronization behavior so timestamps represent the intended physical event.
推薦
推薦產品摘要
工程參考資料，適用於 DP83640TVV/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 | DP83640TVVX/NOPB |
|---|---|---|
| Brand | Texas Instruments | Texas Instruments |
| Package | 48-LQFP (PT), 7 mm x 7 mm | 48-LQFP (PT), 7 mm x 7 mm |
| Pin Count | 48 pins | 48 pins |
| Data Rate | 10 Mbps and 100 Mbps | 10 Mbps and 100 Mbps |
| Host Interface | MII and RMII | MII and RMII |
| Timing Protocol | IEEE 1588 precision-time protocol | IEEE 1588 precision-time protocol |
| Number of Ports | 1 | 1 |
| Supply Voltage | 3.3 V and 2.5 V | 3.3 V and 2.5 V |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C |
| Cable Diagnostics | Supported | Supported |
| Fiber Support | Supported | Supported |
| JTAG Interface | IEEE 1149.1 | IEEE 1149.1 |
主要差異化特點
- Precision synchronization is integrated into a conventional Ethernet PHY (對比DP83867IRRGZR)
- Supports both widely used host-interface styles (對比DP83867IRRGZR)
- Direct same-package family option exists (對比DP83640TVVX/NOPB)
- Designed for industrial synchronization environments (對比KSZ9897RTXI)
設計說明
Use the manufacturer pin-description table and package drawing to create the 48-LQFP schematic symbol and PCB footprint. Place the PHY close to the Ethernet magnetic component and route MII or RMII signals according to the host-interface timing requirements. Keep the Ethernet differential pairs over continuous reference planes, avoid unnecessary stubs, and maintain the geometry specified by the manufacturer layout guidance. Do not assign pins from memory because power, ground, clock, and control functions must match the exact device revision.
Provide local low-inductance decoupling at the PHY supply pins and isolate the Ethernet section from switching power-conversion loops. The device is identified as operating from 3.3 V and 2.5 V, but each rail's required tolerance, sequencing, and decoupling must be taken from the manufacturer electrical guidance. Keep magnetics and high-current paths away from the host interface, and test the assembled board for conducted and radiated emissions because PHY edge rates can couple clock and data harmonics into adjacent circuitry.
Treat the copper Ethernet pair as a controlled-impedance differential channel and the MII or RMII connection as a timing-sensitive digital interface. Keep both host and PHY interfaces referenced to a continuous ground plane, match trace lengths where the selected interface requires it, and avoid routing Ethernet or clock nets beneath switching nodes. Validate eye quality, synchronization behavior, and error-free operation with the intended magnetics and representative cable lengths rather than relying on continuity checks alone.
Do not treat DP83640TVVX/NOPB as an unconditional substitute until the ordering suffix and temperature-grade requirements are confirmed. Do not assume that any 10/100 Ethernet PHY supports the same IEEE 1588 clocking behavior, host-interface timing, or diagnostic functions. Likewise, do not equate a 48-pin package with pin compatibility: verify every power, clock, control, MII/RMII, and ground assignment against the manufacturer documents before releasing a replacement BOM.
合規資訊
The supplied product and cross-reference information does not provide definitive RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. The product is an industrial Ethernet interface IC rather than an automotive-qualified device, so AEC-Q100 is treated as not applicable. Confirm environmental declarations on the current manufacturer product page before release.
