88E1111 - 10/100/1000 Gigabit Ethernet PHY Transceiver | Marvell
MPN: 88E1111 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $17.96 | $17.96 |
| 10 | $16.16 | $161.60 |
| 100 | $14.4 | $1,440.00 |
| 500 | $12.95 | $6,475.00 |
| 1,000 | $12.36 | $12,360.00 |
88E1111 Overview
A PHY, or physical layer device, is the analog/digital interface IC that sits between a media access controller (MAC) and the physical copper or fiber medium in an Ethernet system. In the OSI networking hierarchy, it implements layer 1: it performs analog front-end conditioning, ADC/DAC conversion, echo cancellation, equalization, and line coding required to transmit and receive Ethernet frames on the wire. The 88E1111 belongs to Marvell's Alaska family of Gigabit Ethernet transceivers, widely used in networking and embedded connectivity systems.
Key features include integrated 10/100/1000 Mbps auto-negotiation, an on-chip 10/100/1000BASE-T PHY with digital CMOS process technology, and flexible MAC interface support including RGMII, GMII, TBI, and SGMII-style serial interfaces depending on the ordering variant. The device integrates all active circuitry needed for the physical layer on CAT 5 cabling, reducing bill-of-material count and board area.
Technically, the 88E1111 uses a standard digital CMOS process and includes a high-performance ADC/DAC signal path with adaptive equalization and echo cancellation to meet Gigabit Ethernet 1000BASE-T signal quality requirements. Ordering-option suffixes (BAB, B2, NDC, CAA, RCJ, etc.) define package type, MAC interface configuration, temperature grade, and lead finish, so designers must select the exact variant matching their MAC interface and thermal environment.
Typical applications include Gigabit Ethernet switches, router and gateway WAN/LAN ports, network interface cards, embedded processor reference designs such as FPGA and SoC evaluation platforms (for example the Terasic 88E1111 Ethernet Interface Platform board), and industrial Ethernet equipment.
For design, verify that the ordering variant's MAC interface mode (RGMII vs GMII/TBI) matches the host MAC, and follow the datasheet-recommended magnetics and clocking scheme to pass IEEE 802.3 conformance testing.
This page synthesizes distributor pricing, ordering-variant explanations, and practical sourcing notes not found in the manufacturer datasheet, with drop-in-family alternatives identified from the same Marvell Alaska product line.
Drop-in alternatives for 88E1111 — 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:
88E1112-B2-BAB1C000
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
88E1116-B2-BAB1C000
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
88E1512-B2-BAB1C000
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
88E1145-B2-BAB1C000
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
88E1111-B2-BAB1C000
✅ Drop-In📋 Reference alternative (not in catalog)
88E1111-B2-BAB2I000
✅ Drop-In📋 Reference alternative (not in catalog)
88E1111-XX-RCJ1I000
✅ Drop-In📋 Reference alternative (not in catalog)
88E1111 Specifications
| Product Type | Gigabit Ethernet PHY Transceiver |
| Product Family | Marvell Alaska Ultra 88E1111 |
| Data Rate | 10/100/1000 Mbps |
| Ethernet Standards | 1000BASE-T, 100BASE-TX, 10BASE-T |
| Standard Compliance | IEEE 802.3 (1000BASE-T / 100BASE-TX / 10BASE-T) |
| MAC Interfaces | RGMII, GMII, TBI (variant dependent) |
| Medium | CAT 5 twisted-pair cable |
| Process Technology | Standard digital CMOS |
| Supply Voltage | 2.5 V and 1.0 V (per LCSC variant listing) |
| Package | TFBGA-117 (BAB variant); QFP/QFN on other suffixes |
| Mounting Type | Surface Mount |
| Auto-Negotiation | Yes (10/100/1000) |
| Unit Price (typical distributor) | $12.36 to $17.96 USD as of 2026-10-11 (LCSC) |
88E1111 tfbga-117 (bab variant); qfp/qfn on other suffixes Pin Configuration Guide
Pin configuration for 88E1111 (tfbga-117 (bab variant); qfp/qfn on other suffixes 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 88E1111.
Refer to the datasheet for full pin configuration.
Typical Applications
88E1111 is suitable for 6 applications: Gigabit Ethernet Switches, FPGA Evaluation and Embedded Ethernet Platforms, Router and Gateway WAN/LAN Ports, Network Interface Cards (NICs), Industrial Ethernet Equipment, Video and Security Network Cameras.
Gigabit Ethernet Switches
The Marvell 88E1111 fits Gigabit Ethernet switch line-card PHY positions because it provides a complete 1000BASE-T physical layer with adaptive equalization and echo cancellation over CAT 5, requiring no external analog front end. In a typical switch design, each 88E1111 connects a switch ASIC MAC port through the RGMII or GMII interface to an RJ-45 jack via standard magnetics. The integrated auto-negotiation handles 10/100/1000 speed resolution per port, and the 2.5 V/1.0 V supply architecture keeps per-port power low enough for dense multi-port boards. Designers should budget magnetics selection and clock distribution carefully, since 1000BASE-T return-loss compliance depends on the PHY-to-magnetics interconnect matching the Marvell reference schematic.
Recommended
FPGA Evaluation and Embedded Ethernet Platforms
The 88E1111 is the de-facto PHY on FPGA Ethernet daughter cards, most notably the Terasic P0481 expansion board that DigiKey lists as an 88E1111 Ethernet Interface Platform. It suits this role because its RGMII and GMII MAC interfaces map directly onto FPGA gigabit MAC IP (for example, Altera/Intel TSE MAC or Xilinx/AMD Tri-Mode Ethernet MAC), and its integrated 1000BASE-T analog front end means the FPGA designer needs only magnetics and an RJ-45 to reach the wire. Performance consideration: RGMII source-synchronous timing requires matched-length PCB traces and, on some variants, internal digital delay or board-level skew tuning to meet setup/hold at 125 MHz, so follow the datasheet RGMII timing tables during FPGA constraint setup.
Recommended
Router and Gateway WAN/LAN Ports
Consumer and SMB routers and gateways use the 88E1111 as a WAN or LAN PHY because it supports all three copper speeds (10BASE-T, 100BASE-TX, 1000BASE-T) with hardware auto-negotiation, letting one design serve mixed-speed ISP uplinks. Connected through RGMII to a SoC or switch MAC, the PHY performs echo cancellation, equalization, and line coding internally, keeping the host design digital-only. The BAB TFBGA-117 footprint supports compact two-layer routing of the RGMII bus in space-limited CPE hardware. For regulatory compliance, designers must match the magnetics center-tap topology and line-side decoupling to the Marvell reference design so radiated emissions and 1000BASE-T test-mode waveforms pass certification.
Recommended
Network Interface Cards (NICs)
PCIe-to-copper NIC designs pair a host controller such as the Intel WGI210 family with the 88E1111 PHY to deliver a single 1000BASE-T RJ-45 port. The 88E1111 fits this application because its GMII/RGMII interfaces are the standard glueless connection to such MACs and its CMOS process yields low power suitable for add-in-card thermal envelopes without heatsinking. In production, the industrial-temperature BAB2I000 suffix covers extended ambient conditions inside densely populated servers. A practical design consideration is clocking: the PHY and MAC must derive from a common 25 MHz reference architecture per the datasheet to avoid packet-error-rate degradation from frequency offset across the RGMII/GMII link.
Recommended
Industrial Ethernet Equipment
Industrial switches, PLC communication modules, and factory automation nodes use the 88E1111 industrial-temperature suffixes (for example -XX-RCJ1I000, specified by Veswin over -40C to +105C) for environments beyond standard commercial ranges. The PHY's robust adaptive equalization sustains 1000BASE-T links on field-installed CAT 5 cabling of variable quality, and hardware auto-negotiation tolerates legacy 10/100 devices on shared networks. Designers should derate junction temperature for conformally coated, sealed enclosures and verify the ordering suffix temperature grade against the cabinet ambient. Because industrial networks often demand deterministic latency, the PHY's MAC-interface operating mode should be fixed at 1000 Mbps full duplex to eliminate negotiation transients during fault recovery.
Recommended
Video and Security Network Cameras
IP surveillance cameras and networked video encoders integrate the 88E1111 to deliver a single gigabit uplink for high-bitrate video streams. The PHY supports this because 1000BASE-T provides headroom above compressed multi-stream video bandwidth (typically tens of Mbps per camera), while 100/10 auto-negotiation maintains compatibility with legacy NVR uplinks. Power-over-Ethernet designs feed the camera from the cable; the PHY's 2.5 V/1.0 V rails are typically derived from the PoE PD controller output, so sequencing of the 1.0 V core rail per the datasheet power-up order must be respected to avoid latch-up. The TFBGA-117 footprint also supports the compact form factor of dome and bullet camera main boards.
Recommended
Recommended Products Summary
Engineering reference data for 88E1111 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | 88E1112-B2-BAB1C000 | 88E1116-B2-BAB1C000 | 88E1512-B2-BAB1C000 | 88E1111-XX-RCJ1I000 |
|---|---|---|---|---|---|
| Package | TFBGA-117 (BAB suffix) | TFBGA-117 - same family footprint | TFBGA-117 - same family footprint | TFBGA-117 - same family footprint | QFP - different footprint |
| Brand | Marvell | Marvell | Marvell | Marvell | Marvell |
| Data Rate | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps | 10/100/1000 Mbps |
| Ethernet Standards | 1000BASE-T / 100BASE-TX / 10BASE-T | 1000BASE-T / 100BASE-TX / 10BASE-T | 1000BASE-T / 100BASE-TX / 10BASE-T | 1000BASE-T / 100BASE-TX / 10BASE-T | 1000BASE-T / 100BASE-TX / 10BASE-T |
| Generations / Feature Set | Alaska Ultra, single-port, full feature set | Alaska family, updated silicon | Alaska family, reduced feature set | Newer Alaska generation, added features | Same die, industrial grade |
Key Differentiators
- Broad established FPGA ecosystem (vs 88E1512-B2-BAB1C000)
- Flexible triple MAC interface on one family (vs 88E1116-B2-BAB1C000)
- Extended industrial grade availability (vs 88E1112-B2-BAB1C000)
Design Notes
Route the RGMII interface as a source-synchronous bus: match clock-to-data trace skew within the datasheet RGMII timing budget (typically a few hundred picoseconds at 125 MHz) and keep all RGMII traces length-matched on the same layer. On BAB TFBGA-117 variants, escape the BGA fanout with via-in-pad or dog-bone vias and reserve the inner layer between PHY and MAC for a solid, unbroken ground plane to control return paths on the 125 MHz RGMII clock.
The 88E1111-B2 variants operate from 2.5 V and 1.0 V rails per LCSC variant listings. Follow the datasheet power-up sequencing order for the core rail before or together with the analog rails to avoid latch-up, and decouple every supply ball with 0.1 uF ceramics placed within 2 mm of the BGA, backed by bulk 10 uF per rail. Estimated: a single gigabit PHY draws on the order of a few hundred mW active, so a single small LDO per rail is typically sufficient thermal budget.
The ordering suffix defines package, MAC interface, temperature grade, and lead finish - ordering the wrong suffix (for example BAB1C000 vs BAB2I000 vs RCJ1I000) can render the part unusable on your board. DigiKey forum responses confirm several suffixes (BAB1C000, BAB2I000) are not carried by major distributors, so verify exact availability before layout release. Magnetics must match the datasheet-approved vendor list; mismatched center-tap topology commonly causes 1000BASE-T return-loss test failures.
Compliance Information
RoHS and lead-free status vary by ordering suffix (C000 suffixes are typically lead-free RoHS options in Marvell nomenclature, but this must be confirmed from the official Marvell product page for the exact variant). No compliance data was provided in the verified web data.
