KSZ8721SL-TR - 10/100 Ethernet PHY | Microchip Technology (Tape & Reel)
MPN: KSZ8721SL-TR ✓ सक्रियKSZ8721SL-TR अवलोकन
An Ethernet physical-layer transceiver, commonly called an Ethernet PHY, is the circuit that connects a digital Ethernet controller to a twisted-pair or fiber medium. The PHY belongs to the network-interface IC hierarchy and combines functions such as physical-medium attachment, physical-medium-dependent circuitry, and physical coding sub-layer operation. The KSZ8721SL-TR translates frames between the parallel MII or RMII interface of a host controller and encoded Ethernet signals on the network medium.
The principal verified specifications for the KSZ8721SL-TR include a 3.3 V operating supply, support for both 10BASE-T and 100BASE-TX operation, additional 100BASE-FX capability, MII and RMII host interfaces, an IEEE 802.3-compliant transceiver configuration, and a 48-pin SSOP surface-mount package. Its commercial operating-temperature range is 0 °C to +70 °C. The SMD package supports compact embedded systems while exposing separate network and host-interface functions.
The MII interface supports a parallel Ethernet controller connection, while RMII reduces the number of host-interface signals compared with MII. This makes the RMII connection useful when the selected Ethernet MAC requires a compact serial control and data interface. The fiber-capable 100BASE-FX feature also allows the same physical-layer family to address copper and fiber link requirements, subject to the external optical and isolation circuitry required by the specific design.
Typical uses include industrial Ethernet equipment, embedded control systems, network adapters, print servers, factory automation equipment, and communications products requiring 10 Mb/s or 100 Mb/s Ethernet. Designers should confirm whether the selected board uses copper, fiber, or both media and should validate the required transformers, isolation components, magnetic-interface layout, termination, and host-interface timing against the manufacturer datasheet.
The principal design consideration is that the KSZ8721SL-TR is a commercial-temperature, 48-pin SSOP device rather than an industrial-temperature substitute. Layout should provide a continuous ground reference, short supply connections, controlled-length differential copper routing, and compliant separation between network-side and host-side circuitry where applicable. Its 3.3 V single-supply operation also requires the host interface, clocking, and external network components to be compatible with the implemented interface topology.
This page combines the verified manufacturer and distributor information with package, sourcing, design, and replacement guidance intended to reduce common selection errors. It distinguishes confirmed drop-in options from unreferenced parts and leaves unavailable electrical, pricing, and pin-level details explicitly marked rather than estimating them.
के लिए ड्रॉप-इन विकल्प KSZ8721SL-TR — समान पैकेज, पिन-टू-पिन संगत। PCB रीवर्क आवश्यक करने वाले भिन्न-पैकेज पार्ट्स शामिल नहीं हैं।
इस सीरीज़ के वेरिएंट
समान श्रृंखला के मॉडल जो ड्रॉप-इन संगत हैं KSZ8721SL-TR (समान फॉर्म फैक्टर और फुटप्रिंट) — इसमें भिन्न Package, Device Type, Operating Supply Voltage.
KSZ8721B
✅ ड्रॉप-इनकीमत के लिए संपर्क करें
डेटाशीट देखें →KSZ8721BI
✅ ड्रॉप-इनकीमत के लिए संपर्क करें
डेटाशीट देखें →KSZ8721SL-TR विशेषताएं
| Product Type | 10/100BASE-TX/FX MII physical-layer transceiver |
| Manufacturer | Microchip Technology |
| ऑपरेटिंग सप्लाई वोल्टेज | 3.3 V |
| Supported Ethernet Data Rates | 10 Mb/s and 100 Mb/s |
| Copper Ethernet Support | 10BASE-T and 100BASE-TX |
| Fiber Ethernet Support | 100BASE-FX |
| Host Interface | MII and RMII |
| Ethernet Standard | IEEE 802.3 |
| Number of Transceivers | 1 |
| पैकेज | 48-pin SSOP |
| माउंटिंग स्टाइल | SMD/SMT |
| ऑपरेटिंग तापमान रेंज | 0 °C to +70 °C |
| Core Operating Voltage | 2.5 V |
KSZ8721SL-TR 48-pin ssop पिन कॉन्फ़िगरेशन गाइड
KSZ8721SL-TR (48-pin ssop पैकेज) के लिए पिन कॉन्फ़िगरेशन। पिन नंबरिंग, फ़ंक्शन और कनेक्शन आरेख निर्माता डेटाशीट में परिभाषित हैं। सटीक फुटप्रिंट और सोल्डरिंग दिशानिर्देशों के लिए इसे देखें।
इसके लिए कोई विस्तृत pinout data उपलब्ध नहीं: KSZ8721SL-TR.
देखें डेटाशीट पूर्ण पिन कॉन्फ़िगरेशन के लिए।
सामान्य अनुप्रयोग
KSZ8721SL-TR के लिए उपयुक्त है 6 अनुप्रयोगs: Industrial Ethernet Control Equipment, Embedded Network Adapter, Factory Automation Gateway, Network Print and Communications Equipment, Medical Monitoring Station, Fiber-Capable Network Interface.
Industrial Ethernet Control Equipment
The KSZ8721SL-TR fits commercial-temperature industrial Ethernet control equipment because it supports 10 Mb/s and 100 Mb/s links while providing both MII and RMII host interfaces. It can sit between an embedded Ethernet controller and the physical network, reducing the design burden of implementing the 10BASE-T, 100BASE-TX, and 100BASE-FX physical layers on the host board. Its verified 3.3 V single-supply operation simplifies interface-level planning, while the 48-pin SSOP package supports compact control assemblies. The main limitation is its 0 °C to +70 °C commercial range; machinery exposed to wider temperatures should use a verified industrial-temperature alternative such as KSZ8721BI.
अनुशंसित
Embedded Network Adapter
The KSZ8721SL-TR is appropriate for an embedded network adapter that needs a compact Ethernet front end for an MII or RMII capable controller. It supports both 10 Mb/s and 100 Mb/s operation, allowing the host software and physical network to operate at legacy or Fast Ethernet rates without changing the selected PHY. The MII interface offers a conventional parallel connection, while RMII can simplify host wiring when supported by the Ethernet MAC. Its 48-pin SSOP construction and 3.3 V supply are useful in space-constrained embedded products, although external magnetic-interface components and validated signal routing remain required for copper links.
अनुशंसित
Factory Automation Gateway
The KSZ8721SL-TR can serve as the Ethernet PHY in a factory automation gateway designed for indoor, controlled-temperature equipment. Its IEEE 802.3 transceiver configuration, 10/100 Mb/s support, and MII/RMII host interfaces allow a processor or communications controller to connect to industrial Ethernet equipment. The RMII option can reduce host-interface signal count, while the MII option supports controllers using the parallel interface. Because the verified temperature range is 0 °C to +70 °C, the enclosure and internal heat sources must be assessed carefully. For factory equipment that can experience temperature extremes, KSZ8721BI offers a verified -40 °C to +85 °C operating range.
अनुशंसित
Network Print and Communications Equipment
The KSZ8721SL-TR is suitable for network print servers, protocol converters, and communications appliances requiring 10/100 Mb/s Ethernet connectivity. The device provides the physical-layer functions needed to connect a digital host interface to Ethernet media, while supporting both parallel MII and compact RMII host connections. This flexibility permits one PHY family to address controllers with different interface architectures. The 3.3 V single-supply architecture and 48-pin SSOP package support compact PCB construction. Designers must still implement the required network magnetics or fiber interface and should verify the chosen media topology against the manufacturer reference design.
अनुशंसित
Medical Monitoring Station
The KSZ8721SL-TR can be used in a medical monitoring station or diagnostic controller when an Ethernet link is required for data transfer and the commercial temperature environment is controlled. Its 10 Mb/s and 100 Mb/s support provides compatibility with common Ethernet infrastructure, while MII and RMII interfaces allow selection according to the host controller. The physical layer itself does not determine regulatory compliance, so medical-system validation must cover the complete monitor, network hardware, and application. In addition, the verified 0 °C to +70 °C range must remain acceptable; equipment requiring broader environmental tolerance should use a verified industrial-grade alternative.
अनुशंसित
Fiber-Capable Network Interface
The KSZ8721SL-TR supports a network design that includes 100BASE-FX capability in addition to 10BASE-T and 100BASE-TX operation. This makes it relevant to embedded equipment that must connect through fiber or maintain a common physical-layer architecture across copper and fiber media options. The PHY communicates with the host through MII or RMII, while the external signal path determines the final copper or optical implementation. Using a fiber-capable PHY does not eliminate the need for suitable optical components, isolation requirements, or board-level validation. The 3.3 V supply and 48-pin SSOP package support compact designs, subject to manufacturer reference-circuit and timing checks.
अनुशंसित
अनुशंसित उत्पादों का सारांश
के लिए इंजीनियरिंग संदर्भ डेटा KSZ8721SL-TR — तुलना, डिज़ाइन मार्गदर्शन और अनुपालन जानकारी।
चयन गाइड
विकल्पों के साथ तुलना
| पैरामीटर | यह उत्पाद | KSZ8721B | KSZ8721BI |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 48-pin SSOP | 48-pin SSOP | 48-pin SSOP |
| Operating Supply Voltage | 3.3 V | 3.3 V | 3.3 V |
| Supported Data Rates | 10 Mb/s and 100 Mb/s | 10 Mb/s and 100 Mb/s | 10 Mb/s and 100 Mb/s |
| Host Interface | MII and RMII | MII and RMII | MII and RMII |
| Copper Media Support | 10BASE-T and 100BASE-TX | 10BASE-T and 100BASE-TX | 10BASE-T and 100BASE-TX |
| Fiber Media Support | 100BASE-FX | 100BASE-FX | 100BASE-FX |
| Ethernet Standard | IEEE 802.3 | IEEE 802.3 | IEEE 802.3 |
मुख्य विशेषताएँ
- Explicit manufacturer-documented drop-in relationship (बनामKSZ8721B)
- Same verified 10/100 Mb/s Ethernet performance (बनामKSZ8721BI)
- Commercial and industrial temperature options (बनामKSZ8721BI)
डिज़ाइन नोट्स
Route the Ethernet differential pairs as a controlled-impedance pair directly between the KSZ8721SL-TR network-side connections and the required external magnetic or optical interface components. Avoid adding test pads, stubs, and unrelated copper in the interface region. Keep the return path continuous under the pair and follow the manufacturer reference layout because switching-noise coupling into these 10/100 Mb/s interfaces can produce packet errors or link instability.
Decouple the KSZ8721SL-TR 3.3 V supply locally with the capacitance and placement required by the manufacturer datasheet and reference design. Place the supply and ground connections close to the device, maintain a low-impedance ground plane, and separate noisy switching-converter paths from the MII/RMII and Ethernet signal areas. The supplied excerpts do not provide exact capacitor values, ESR limits, or allowable ripple, so those values must be taken directly from the manufacturer document.
Do not treat an Ethernet transceiver with a similar 48-pin package as interchangeable without verifying every pin, supply sequence, interface timing, and media-side connection. The manufacturer explicitly identifies KSZ8721B as a same-footprint KSZ8721SL-TR alternative, but a different suffix can change the package, temperature grade, or ordering configuration. Also verify the required external magnetics for copper links or optical components for 100BASE-FX rather than assuming the PHY includes the complete network interface.
Confirm the ambient and enclosure temperature before selecting the commercial-grade KSZ8721SL-TR. Its verified range is 0 °C to +70 °C, so an indoor cabinet near a heat source or an outdoor enclosure may exceed the rating even if the surrounding air appears moderate. KSZ8721BI provides a documented -40 °C to +85 °C family option for wider environmental requirements, subject to confirmation of the exact package and qualification details.
अनुपालन जानकारी
The supplied verified excerpts do not contain explicit compliance declarations for the exact KSZ8721SL-TR ordering suffix. Check the current Microchip Technology product page and manufacturer documentation before making a compliance claim.
