88E1512-A0-NNP2I000 - Single-Port Gigabit Ethernet PHY | Marvell
MPN: 88E1512-A0-NNP2I000 ✗ End of Life| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
88E1512-A0-NNP2I000 Overview
An Ethernet PHY is the physical-layer component between a MAC or Ethernet switch and a physical network medium. It converts parallel or serial digital data into electrical signaling for copper links and can provide a fiber-oriented interface when the system uses compatible SFP modules. The 88E1512 supports RGMII for direct MAC or switch connections and SGMII operating at 1.25 Gb/s over a single differential pair. This makes it relevant to industrial networking, factory equipment, access infrastructure, and embedded Ethernet systems.
Key features include support for full- and half-duplex operation, copper/fiber auto-media applications, integrated switching voltage-regulator functionality, and Advanced Virtual Cable Tester capability based on time-domain reflectometry. The cable-test feature can help identify pair swaps, pair-polarity errors, and excessive pair skew, supporting installation diagnostics and field troubleshooting. The manufacturer documentation also identifies IEEE 802.3 and IEEE 1588 references, while the exact feature availability depends on the device variant and system configuration.
The device is intended for designs that need a compact Ethernet PHY with flexible MAC-facing interfaces. RGMII can connect directly to a MAC or switch port, while SGMII can be used on the media or line side with compatible 1000BASE-X, 100BASE-FX, or SGMII modules. The 56-QFN package reduces board area but requires careful high-speed layout, controlled impedance routing, adequate supply decoupling, and thermal verification.
Typical applications include industrial Ethernet controllers, communications equipment, network switches, copper-to-fiber media converters, access-point equipment, and embedded systems requiring a single Ethernet port. When selecting a replacement, verify the exact package, pinout, strapping options, interface mode, supply requirements, and clocking arrangement in the manufacturer datasheet rather than relying only on the family name.
This page combines the verified manufacturer and distributor information with practical interface-selection and layout guidance. It is intended to help engineers identify whether the 88E1512-A0-NNP2I000 matches the required 10/100/1000 Mb/s Ethernet PHY application before requesting quotation or designing a replacement board.
Drop-in alternatives for 88E1512-A0-NNP2I000 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
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| Product Type | Single-port Gigabit Ethernet physical-layer transceiver |
| Ethernet Data Rates | 10 Mb/s, 100 Mb/s, and 1 Gb/s |
| MAC Interface | RGMII and SGMII |
| SGMII Data Rate | 1.25 Gb/s over one differential pair |
| Standards | IEEE 802.3 and IEEE 1588 references |
| Duplex Support | Full-duplex and half-duplex |
| Supply Input | Single 3.3 V supply |
| Supported Interface Supplies | 1.8 V, 2.5 V, and 3.3 V |
| Integrated Regulator | Integrated switching voltage regulator |
| Media Support | Copper/fiber auto-media applications |
| Cable Diagnostic | Advanced Virtual Cable Tester using time-domain reflectometry |
| Detected Cable Issues | Pair swaps, pair polarity, and excessive pair skew |
| Package | 56-QFN, 8 mm x 8 mm |
| Mounting | Surface mount |
| Industrial Temperature | Industrial temperature variant |
| RoHS Status | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_applicable |
| Lead-Free Status | unknown |
| Halogen-Free Status | unknown |
| Pin Count | 56 pins |
88E1512-A0-NNP2I000 56-qfn, 8 mm x 8 mm Pin Configuration Guide
Pin configuration for 88E1512-A0-NNP2I000 (56-qfn, 8 mm x 8 mm package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for 88E1512-A0-NNP2I000.
Refer to the datasheet for full pin configuration.
Typical Applications
88E1512-A0-NNP2I000 is suitable for 6 applications: Industrial Ethernet Controllers, Copper-to-Fiber Media Conversion, Network Access Equipment, Embedded Ethernet Systems, Ethernet Switch Ports, Cable Diagnostics and Field Service.
Industrial Ethernet Controllers
The 88E1512-A0-NNP2I000 fits single-port industrial Ethernet designs that need 10/100/1000 Mb/s connectivity and a choice of RGMII or SGMII. RGMII can connect to a local MAC or switch port, while SGMII reduces the number of high-speed signal pairs when paired with a compatible serial interface. The integrated switching regulator supports a 3.3 V system supply, but designers still need to verify local decoupling, clocking, grounding, and thermal performance in the final enclosure.
Recommended
Copper-to-Fiber Media Conversion
The 88E1512-A0-NNP2I000 is suitable for copper/fiber auto-media designs using compatible SGMII modules. Marvell states that SGMII can operate at 1.25 Gb/s over one differential pair and can connect to suitable 1000BASE-X, 100BASE-FX, or SGMII modules. This application is useful where a device must bridge a copper-side network segment to an optical link. The optical module, optical budget, isolation, connector, and media-side power requirements remain separate design decisions.
Recommended
Network Access Equipment
For access-point, gateway, or communications equipment, the 88E1512-A0-NNP2I000 provides a single Ethernet PHY port with flexible MAC-facing options. The RGMII path supports direct integration with a MAC or switch port, while SGMII can simplify serial connectivity to compatible line-side modules. Its cable-diagnostic capability can assist commissioning by detecting pair swaps, pair polarity, and excessive pair skew. Product qualification must still account for enclosure temperature, surge requirements, isolation, and regulatory EMC testing.
Recommended
Embedded Ethernet Systems
The device is appropriate for embedded systems that need a compact single-port Gigabit Ethernet physical layer. RGMII can connect to a system MAC when parallel data timing is available, while SGMII can reduce pin count and PCB routing complexity when the host supports the serial interface. Marvell identifies the part as an industrial-temperature variant through distributor data. Firmware or driver integration should verify register access, interrupt behavior, strap settings, cable diagnostics, and link timing before production deployment.
Recommended
Ethernet Switch Ports
The 88E1512-A0-NNP2I000 can serve as the physical layer for a single port in a communications system, including switch or line-card designs requiring copper/fiber flexibility. Its RGMII interface is intended for connection to a MAC or switch port, while SGMII supports serial media-side connections to compatible modules. Because this is a single-port PHY, multiport products require multiple devices or a compatible aggregation architecture. Validate timing, thermal conditions, magnetics or fiber modules, and system-level interoperability.
Recommended
Cable Diagnostics and Field Service
The 88E1512-A0-NNP2I000 is useful when installation diagnostics are part of the product value proposition. Its Advanced Virtual Cable Tester uses time-domain reflectometry to identify potential cable faults such as pair swaps, pair polarity, and excessive pair skew. These measurements can help reduce field troubleshooting and equipment-return cycles when the host software can access the PHY functions. Diagnostic coverage and interpretation should be confirmed against the manufacturer documentation for the exact ordering code and firmware configuration.
Recommended
Engineering reference data for 88E1512-A0-NNP2I000 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Package | 56-QFN, 8 mm x 8 mm |
| Brand | Marvell |
| Ethernet Data Rate | 10/100/1000 Mb/s |
| MAC Interface | RGMII and SGMII |
| SGMII Signaling | 1.25 Gb/s over one differential pair |
| Input Supply | Single 3.3 V supply |
| Supported Interface Supplies | 1.8 V, 2.5 V, and 3.3 V |
| Cable Diagnostics | VCT time-domain reflectometry; pair swaps, polarity, and skew detection |
| Temperature Grade | Industrial temperature variant |
| RoHS | unknown |
Key Differentiators
- Combines copper/fiber auto-media support with RGMII and SGMII (vs DP83867 and DP83869)
- Integrated cable diagnostics using time-domain reflectometry (vs Older Marvell 88E1512 variants)
- Single 3.3 V supply with 1.8 V, 2.5 V, and 3.3 V interface support (vs Generic single-interface Ethernet PHY options)
Design Notes
Use the manufacturer 88E151x datasheet as the controlling source for the 56-QFN pinout and exposed-pad connection. Keep the RGMII or SGMII selection consistent with the board layout, strap resistors, clocking, and host interface. Do not rely on a generic Ethernet PHY footprint or distributor summary for pin assignment.
Route RGMII as a short, tightly controlled source-synchronous interface and route SGMII differential pairs with continuous reference planes and impedance-controlled geometry. Avoid split planes under high-speed pairs, minimize vias, and keep return paths continuous. Confirm the exact timing, voltage levels, and trace constraints from the manufacturer interface specifications.
The 88E1512-A0-NNP2I000 uses a single 3.3 V supply and includes an integrated switching voltage regulator. Place the required input and local decoupling capacitors according to the manufacturer reference layout, keep switching-current paths compact, and separate noisy regulator current from sensitive RGMII and SGMII return paths. Validate ripple and startup behavior on the finished board.
Do not treat the Marvell 88E1512 family name as proof of drop-in compatibility. The older 88E1512 and related family members may differ in package, strapping, register behavior, interface timing, or cable-diagnostic functions. Before substitution, compare the complete ordering code, pinout, strap table, electrical limits, clock requirements, and application circuit.
Compliance Information
The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. The part is identified as an industrial-temperature Ethernet PHY, but that description does not establish AEC-Q100 qualification.
