DP83848MPHPEP - 10/100 Ethernet PHY | Texas Instruments
料号： DP83848MPHPEP ✓ 量产中DP83848MPHPEP 概述
An Ethernet physical-layer transceiver is the circuit that converts digital Ethernet data into electrical signals for a twisted-pair cable and converts incoming cable signals back into digital data for the host controller or processor. In the hierarchy of electronic components, the DP83848MPHPEP is a network interface IC, then an Ethernet transceiver, then a physical-layer transceiver within the broader field of data-processing and communications semiconductors.
The principal characteristics of the DP83848MPHPEP are its 10/100 Mb/s data-rate support, single-port configuration, 3.3 V operation, and extended military temperature range of -55°C to 125°C. Its IEEE 802.3u compatibility makes it suitable for conventional 10BASE-T and 100BASE-T network connections. A 25 MHz clock output is available from the related DP83848M device family identified by Texas Instruments.
The DP83848-EP product line was designed for applications with severe environmental requirements, where equipment may operate outside commercial or industrial temperature conditions. This extended-temperature capability distinguishes the DP83848MPHPEP from ordinary DP83848M variants intended for commercial operation. The 48-HTQFP package also supports compact surface-mount construction while providing a defined thermal and electrical interface for multilayer PCB assembly.
Typical uses include industrial Ethernet controllers, factory automation equipment, communications infrastructure, embedded network appliances, and data-acquisition systems. When paired with an appropriate Ethernet controller or embedded processor, the PHY can connect a digital system to a standard copper Ethernet network while leaving protocol, framing, and host-interface functions above the physical layer.
PCB design should preserve the differential characteristics of the transmit and receive pairs, provide the specified interface and bias circuitry, and follow the manufacturer’s pin-description and reference-layout guidance. Because the DP83848MPHPEP supports operation up to 125°C, thermal assessment should include maximum ambient temperature, copper area, nearby heat sources, and the selected PCB construction rather than relying only on a generic package rating.
This product page consolidates the manufacturer’s family description, package information, temperature-range information, ordering information, and engineering selection guidance. It also identifies documented same-package replacement options and separates confirmed drop-in candidates from broader family relatives that require additional compatibility review.
直接替换替代料： DP83848MPHPEP ——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： DP83848MPHPEP （相同外形与封装尺寸） ——差异在于 Operating Temperature Range, Package, Product Type.
DP83848MPHPREP
✅ 直接替换📋 参考替代料（不在目录中）
DP83848MPTBEP
✅ 直接替换联系询价
查看数据手册 →DP83848MPHPEP 规格参数
| Product Type | Single-port Ethernet physical-layer transceiver |
| Supported Data Rates | 10 Mb/s and 100 Mb/s |
| Number of Ports | 1 port |
| Ethernet Standard | IEEE 802.3u |
| 工作温度范围 | -55°C to 125°C |
| 电源电压 | 3.3 V |
| Clock Output | 25 MHz |
| 封装 | 48-HTQFP (7 mm × 7 mm) |
| 安装类型 | Surface mount |
| Product Family | DP83848-EP Enhanced Product PHYTER |
| Temperature Grade | Military temperature |
| Physical Layer Type | Ethernet PHY transceiver |
| Driver Configuration | 1 transceiver |
DP83848MPHPEP 48-htqfp (7 mm × 7 mm) 引脚配置指南
DP83848MPHPEP（48-htqfp (7 mm × 7 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： DP83848MPHPEP.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83848MPHPEP 适用于 6 应用s: Industrial Factory Automation Ethernet, Military-Temperature Communications Equipment, Embedded Network Data Acquisition, Industrial Network Gateway, Security Camera Network Interface, Automotive and Transportation Telematics.
Industrial Factory Automation Ethernet
The DP83848MPHPEP fits factory automation equipment that must maintain 10/100 Mb/s Ethernet connectivity across a broad temperature range. Its IEEE 802.3u compatibility supports conventional 10BASE-T and 100BASE-T links, while the -55°C to 125°C specification gives designers margin in machinery, test equipment, and control cabinets exposed to temperature variation. Place the PHY between the Ethernet controller or embedded processor and the network transformer interface, then follow the manufacturer reference layout for the differential pairs and bias network.
推荐
Military-Temperature Communications Equipment
The DP83848MPHPEP is appropriate for communications equipment specified for severe environmental conditions. Its military temperature range of -55°C to 125°C distinguishes it from commercial-grade DP83848 variants and supports deployment where ambient temperature can exceed ordinary office or laboratory limits. The single-port 10/100 Mb/s PHY provides the physical layer for control, status, voice, or maintenance networks while the host processor handles Ethernet framing and upper-layer protocols. System qualification should verify enclosure temperature, component derating, startup behavior, and cabling.
推荐
Embedded Network Data Acquisition
The DP83848MPHPEP can add a wired network port to an embedded data-acquisition system that operates at 10 or 100 Mb/s. The PHY handles Ethernet serialization and twisted-pair signaling while the host controller or microcontroller manages packets, local storage, and cloud or workstation connectivity. Its 48-HTQFP package allows a compact surface-mount layout, and the -55°C to 125°C range supports instrumentation deployed in variable environments. Keep the Ethernet differential routing controlled and isolate analog acquisition circuitry from noisy PHY and switching-supply areas.
推荐
Industrial Network Gateway
A DP83848MPHPEP-based gateway can bridge a 10/100 Mb/s Ethernet segment to a local embedded processor, remote I/O network, or service interface. Its single-port PHY architecture is suitable for compact gateways that need one copper Ethernet connection, and IEEE 802.3u support allows deployment on established 10BASE-T and 100BASE-T infrastructure. The extended -55°C to 125°C range supports equipment intended for industrial environments. Designers should budget thermal rise in sealed enclosures and provide a stable 3.3 V rail with low-noise decoupling.
推荐
Security Camera Network Interface
The DP83848MPHPEP can provide the wired Ethernet physical layer for an industrial or outdoor surveillance camera requiring a 10/100 Mb/s connection. It allows the camera’s processor to stream video and receive control commands through conventional copper Ethernet while keeping the network interface separate from image-processing circuitry. The -55°C to 125°C operating range is useful for cameras installed in vehicles, outdoor enclosures, or unheated industrial locations. Maintain controlled impedance, isolate surge-prone cabling entry points, and verify power-supply behavior during startup.
推荐
Automotive and Transportation Telematics
The DP83848MPHPEP is suitable for transportation equipment needing a wired 10/100 Mb/s Ethernet link and a temperature-qualified physical layer. The DP83848-EP family’s -55°C to 125°C range covers demanding vehicular or roadside environments better than a commercial PHY. A vehicle network gateway can use the device for diagnostics, service access, or distributed sensor communication while a host processor implements the relevant protocol stack. Complete automotive use still requires system-level qualification, transient protection, grounding, and confirmation of all applicable device qualification claims.
推荐
推荐产品汇总
工程参考数据： DP83848MPHPEP ——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 | DP83848MPHPREP | DP83848MPTBEP |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 48-HTQFP (7 mm × 7 mm) | 48-HTQFP (7 mm × 7 mm) | 48-HTQFP (7 mm × 7 mm) |
| Supported Data Rates | 10 Mb/s and 100 Mb/s | 10 Mb/s and 100 Mb/s | 10 Mb/s and 100 Mb/s |
| Number of Ports | 1 port | 1 port | 1 port |
| Ethernet Standard | IEEE 802.3u | IEEE 802.3u | IEEE 802.3u |
关键差异点
- Extended operating-temperature capability （对比 DP83848MPHPREP)
- Direct same-family replacement pathway （对比 DP83848MPTBEP)
- Compact single-port networking （对比 DP83848MPHPREP)
设计说明
Route the Ethernet transmit and receive pairs as controlled-impedance differential traces, following the manufacturer’s reference layout and keeping each pair continuously referenced to its appropriate ground plane. Minimize stubs, vias, right-angle bends, and switching-current paths beneath the PHY. Place the bias and interface components close to their associated pins. The 7 mm × 7 mm 48-HTQFP footprint leaves limited escape space, so density should not override return-path continuity or differential-pair geometry.
Use a stable 3.3 V supply and place the recommended decoupling network directly beside the supply and ground pins. Separate noisy switching nodes and magnetic-component fields from sensitive Ethernet signal paths. Confirm startup, voltage tolerance, and supply sequencing against the manufacturer datasheet. In sealed high-temperature equipment, calculate the heat contribution from the PHY and nearby regulators at the maximum ambient temperature of 125°C rather than assuming room-temperature performance.
Do not treat a shared DP83848 family name as proof that every ordering code is interchangeable. Confirm the complete suffix, temperature grade, pin table, exposed-pad requirements, and lead finish for DP83848MPHPEP and each proposed substitute. DP83848MPHPREP and DP83848MPTBEP are documented same-family candidates, but any PCB and qualification change still requires schematic review, hardware regression testing, and appropriate environmental validation.
Perform a board-level thermal assessment for the maximum specified ambient temperature of 125°C. Include copper area beneath and around the 48-HTQFP package, adjacent component heat, enclosure airflow, and the temperature rise between the PCB and the device. Use the manufacturer thermal information for the final calculation because board construction and copper geometry can materially change junction temperature. Avoid relying on a generic package rating when the design operates near the upper temperature limit.
合规信息
The manufacturer identifies IEEE 802.3u compliance and a military temperature range. Specific RoHS, REACH, lead-free, halogen-free, conflict-minerals, and AEC-Q100 statements require confirmation from the current manufacturer documentation.
