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88E1543-A1-LKJ2I000 Marvell Semiconductor, Inc.

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88E1543-A1-LKJ2I000

IC TXRX 128-LQFP-EP -40°C to +85°C

Part Number: 88E1543-A1-LKJ2I000

Manufacturer: Marvell Semiconductor, Inc.

Category: Drivers, Receivers, Transceivers

Package: 128-LQFP Exposed Pad

Datasheet:: 88E1543-A1-LKJ2I000.pdf

Description: IC TXRX 128-LQFP-EP -40°C to +85°C

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PRODUCT INFORMATION

Product Details

PRODUCT TECHNICAL REFERENCE

88E1543-A1-LKJ2I000 Alaska® Quad Port 10/100/1000 Mbps Energy Efficient Ethernet Transceiver

A comprehensive technical overview of the 88E1543-A1-LKJ2I000, a quad-port Gigabit Ethernet transceiver from Marvell featuring four independent Gigabit Ethernet transceivers, Energy Efficient Ethernet (IEEE 802.3az) support, SGMII MAC interface, Auto-Media Detect for copper/fiber/SGMII, integrated switching voltage regulator, and a 128-pin LQFP package. Covers device function, core features, electrical specifications, pin configuration, typical applications, and replacement selection guidance.

Marvell 128-LQFP (14mm × 20mm) 3.3V Single Supply

Device Classification Quad-Port Gigabit Ethernet Transceiver

Part Number: 88E1543-A1-LKJ2I000

Mounting Type: Surface Mount

Operating Temperature Range: -40°C to +85°C

PRODUCT OVERVIEW

What Is the 88E1543-A1-LKJ2I000?

88E1543-A1-LKJ2I000 is a quad-port Gigabit Ethernet transceiver from Marvell's Alaska® family. It is a physical layer device containing four independent Gigabit Ethernet transceivers on a single monolithic IC. Each transceiver performs all the physical layer functions for 1000BASE-T, 100BASE-TX and 10BASE-T standards.[reference:0]

The device supports Quad Serial Gigabit Media Independent Interface (SGMII) to Copper and Dual-port SGMII (system) to Copper/Fiber/SGMII with Auto-Media Detect.[reference:1] In addition to supporting Energy Efficient Ethernet (EEE, IEEE 802.3az) on the new generation of enabled MACs, these products are also capable of implementing EEE with legacy or non-EEE devices by incorporating EEE buffering.[reference:2]

The device also integrates MDI interface termination resistors into the PHY, simplifying board layout and reducing board cost by reducing the number of external components. The Marvell calibrated resistor scheme achieves and exceeds the accuracy requirements of the IEEE 802.3 return loss specifications.[reference:3] The Alaska 88E1543 device has an integrated switching voltage regulator to generate all required voltages and can run off of a single 3.3V supply.[reference:4]

The 88E1543-A1-LKJ2I000 is the industrial temperature grade version in a 128-pin LQFP package with an exposed pad, rated for operation from –40°C to +85°C. The device is RoHS compliant, REACH unaffected, and in active production.

Quad-Port Gigabit Ethernet Four independent Gigabit Ethernet transceivers supporting 1000BASE-T, 100BASE-TX and 10BASE-T standards on CAT 5, CAT 3, 4, and 5 cable.[reference:5]

Energy Efficient Ethernet (EEE) IEEE 802.3az compliant with EEE buffering for legacy or non-EEE devices, plus Wake-on-LAN (WoL) support for programmable lower power event and link change detection.[reference:6]

Integrated Voltage Regulator Runs off a single 3.3V supply, with integrated MDI termination resistors to simplify board layout and reduce external component count.[reference:7]

DEVICE HIGHLIGHTS

Key Features and Benefits of 88E1543-A1-LKJ2I000

Energy Efficient Ethernet (EEE)

Supports IEEE 802.3az and implements EEE with legacy or non-EEE MACs through EEE buffering, extending energy savings beyond standard EEE-capable networks.[reference:8]

SGMII and Auto-Media Detect

Supports Quad SGMII to Copper and Dual-port SGMII (system) to Copper/Fiber/SGMII with Auto-Media Detect, providing flexible media configuration for copper and fiber applications.[reference:9]

Integrated Switching Voltage Regulator

Generates all required voltages internally, allowing the device to run off a single 3.3V supply and simplifying power supply design.[reference:10]

Advanced Virtual Cable Tester® (VCT™)

Detects and reports potential cabling issues to within one meter of the distance to the fault, enabling fast diagnosis and reduced maintenance costs.[reference:11]

Wake on LAN (WoL)

Provides programmable lower power (S5) event/pattern and link change detection for efficient remote system wake-up capabilities.[reference:12]

Integrated MDI Termination Resistors

On-chip MDI interface termination resistors simplify board layout and reduce board cost by minimizing external component count.[reference:13]

REFERENCE DATA

Technical Specifications for 88E1543-A1-LKJ2I000

Part Number	88E1543-A1-LKJ2I000	Manufacturer	Marvell
Device Type	Quad-Port Gigabit Ethernet Transceiver	Family	Alaska®
Data Rate	10/100/1000 Mbps	Number of Ports	4
Supply Voltage	3.3V (Single Supply)	I/O Supply Voltage	2.5V or 3.3V
MAC Interface	SGMII	Media Interface	1000BASE-T, 100BASE-TX, 10BASE-T
Fiber Media Support	1000BASE-X, 100BASE-FX (via SGMII Media)	Auto-Media Detect	Yes (Copper/Fiber/SGMII)
EEE Support	IEEE 802.3az Compliant	EEE with Legacy MAC	Yes (via EEE Buffering)
Wake on LAN (WoL)	Yes	Cable Diagnostics	Virtual Cable Tester® (VCT™)
Cable Support	CAT 5 (1000BASE-T), CAT 5 (100BASE-TX), CAT 3/4/5 (10BASE-T)	Auto-Negotiation	Yes
Integrated Voltage Regulator	Yes (Single 3.3V Supply)	MDI Termination Resistors	Integrated
Package / Case	128-LQFP (14mm × 20mm) with Exposed Pad	Supplier Device Package	LQFP-128
Pin Count	128	Mounting Type	Surface Mount
Operating Temperature	-40°C to +85°C (Industrial)	RoHS	Yes (RoHS 6/6, Green, Halogen-free)
Product Status	Active	Packaging	Tray
Power Dissipation	400mW per Port (Copper Applications)	Supply Current	280mA (Typical)

Electrical values shown above are reference values. Test conditions, limits, and guaranteed performance should always be confirmed from the current official manufacturer datasheet before design or production use.

DESIGN REFERENCE

Circuit Considerations for 88E1543-A1-LKJ2I000

Media & Interface Configuration

The 88E1543-A1-LKJ2I000 offers flexible media and interface configuration:

SGMII to Copper Application: Supports SGMII on the MAC interface for copper-to-SGMII applications. The device performs all physical layer functions for 1000BASE-T, 100BASE-TX and 10BASE-T standards.[reference:14]
Dual-port SGMII (System) to Copper/Fiber/SGMII: Can be configured to operate in SGMII (System) to Auto-Media Copper/Fiber mode for mixed media applications, with SGMII also usable as media interface for Fiber/SFP applications.[reference:15]
Auto-Media Detect: Automatically detects and configures to the connected media type (copper, fiber, or SGMII), simplifying system design and reducing configuration overhead.[reference:16]
Auto-Negotiation: Supports SGMII with and without auto-negotiation, automatically detecting and selecting the best connection rate and duplex mode.[reference:17]
Dual-Port Mode: The device can be used as a classic Quad-PHY, or a Dual-PHY with each PHY having 2 ports.[reference:18]

PCB and System-Level Guidance

Ethernet transceiver performance depends on layout and component selection:

Power Supply Decoupling: The integrated switching voltage regulator generates all required voltages from a single 3.3V supply. Place low-ESR decoupling capacitors close to the power pins for stable operation.[reference:19]
Differential Pair Routing: Route MDI differential pairs with controlled 100Ω differential impedance and matched lengths for optimal signal integrity. The device contains an internal 100 ohm resistor between the MDIP/N pins.[reference:20]
MDI Termination: MDI interface termination resistors are integrated into the PHY, simplifying board layout and reducing external component count. The Marvell calibrated resistor scheme achieves and exceeds IEEE 802.3 return loss specifications.[reference:21]
Crystal/Clock: Connect a 25 MHz crystal oscillator to XTAL_IN/XTAL_OUT pins with ±50 ppm tolerance.[reference:22]
Exposed Pad: The exposed pad on the LQFP package must be soldered to the PCB ground plane for optimal thermal performance and heat dissipation.[reference:23]
Verify the recommended PCB footprint from the official datasheet prior to production.

128-LEAD LQFP (14mm × 20mm)

Pin Configuration Reference for 88E1543-A1-LKJ2I000

88E1543

LQFP TOP VIEW

Confirm package orientation and pin numbering against the official package drawing before PCB layout. The LQFP package has 128 pins with a 14mm × 20mm body size and an exposed pad. The pin naming convention uses port prefixes (P0_ through P3_) to identify per-port signals. Ports 1, 2, and 3 follow the same signal naming convention as Port 0.

P0 Port 0 MDI Pairs (P0_MDIP[3:0]/P0_MDIN[3:0]), SERDES Fiber Pairs (P0_S_INP/N, P0_S_OUTP/N), LED Indicators (P0_LED[3:0]), MDC/MDIO Management

P1 Port 1 Signals Follow Same Naming as Port 0 (P1_MDIP/N, P1_S_INP/N, P1_S_OUTP/N, P1_LED[3:0], P1_MDC, P1_MDIO)

P2 Port 2 Signals Follow Same Naming as Port 0 (P2_MDIP/N, P2_S_INP/N, P2_S_OUTP/N, P2_LED[3:0], P2_MDC, P2_MDIO)

P3 Port 3 Signals Follow Same Naming as Port 0 (P3_MDIP/N, P3_S_INP/N, P3_S_OUTP/N, P3_LED[3:0], P3_MDC, P3_MDIO)

C0 XTAL_IN / XTAL_OUT 25 MHz Crystal Oscillator Connection Pins (±50 ppm Tolerance)

C1 REFCLKP / REFCLKN Reference Clock Differential Input Pins

C2 RESETn Device Reset Input (Active Low)

C3 RSET External Reference Resistor Connection

C4 VDDC Core Supply Voltage Pins (1.0V)

C5 VDDOL / VDDOM / VDDOR I/O Supply Voltage Pins (2.5V or 3.3V)

C6 VSS Ground Pins and Exposed Pad

C7 TRSTn / TCK / TDI / TMS / TDO JTAG Boundary Scan Test Pins (IEEE 1149.1)

C8 TEST[1:0] Test Mode Select Pins

APPLICATION AREAS

Typical Applications for 88E1543-A1-LKJ2I000

Enterprise Networking Equipment

Quad-port Gigabit Ethernet transceiver provides reliable connectivity for enterprise switches, routers, and network appliances.

Gigabit Ethernet Switches

Highly integrated 4-port device with SGMII interface enables compact Gigabit switch designs with reduced board space.

Metro/Service Provider

Auto-Media Detect and SGMII support suit Metro Ethernet and service provider equipment requiring flexible copper/fiber media options.

Embedded Systems

Single 3.3V supply operation and integrated voltage regulator make this transceiver ideal for embedded networking systems.

Consumer Electronics

Low power dissipation and compact package suit consumer networking equipment such as routers, gateways, and set-top boxes.

Industrial Automation

Industrial temperature range (–40°C to +85°C) and robust signal processing suit industrial Ethernet and automation applications.

REPLACEMENT GUIDANCE

Selecting an Alternative for 88E1543-A1-LKJ2I000

A replacement for the 88E1543-A1-LKJ2I000 should not be selected solely by product category. The electrical characteristics, package, and pin configuration must be evaluated against the specific circuit requirements. The following alternatives are documented in the official Marvell product pages and datasheets.

Data rate: 10/100/1000 Mbps

Ports: 4 (Quad)

Supply voltage: 3.3V (Single)

MAC interface: SGMII

Package: 128-LQFP (14mm × 20mm)

Temperature range: –40°C to 85°C

EEE support: IEEE 802.3az

Auto-Media Detect: Yes

Pin-to-pin and functionally compatible alternatives (same family, different temperature grade or packaging):

Part Number	Package	Temperature Grade	Packaging
88E1543-A1-LKJ2I000	128-LQFP	Industrial (-40°C to 85°C)	Tray
88E1543-A1-LKJ2C000	128-LQFP	Commercial (0°C to 70°C)	Tray

Functionally similar alternatives (different Marvell families):

Part Number	Description	Package	Key Difference
88E1545-A1-LKJ2C000	Quad Port Gigabit Ethernet Transceiver with QSGMII	128-LQFP	QSGMII Interface (vs SGMII)
88E1548-A1-BAM2C000	Quad Port Gigabit Ethernet Transceiver	196-TFBGA	Different Package

All alternative part numbers listed above are documented in the official Marvell product pages and datasheets. The 88E1543-A1-LKJ2I000 is the industrial temperature grade version in a 128-pin LQFP package with tray packaging. For commercial temperature grade operation (0°C to 70°C) in the same package, consider 88E1543-A1-LKJ2C000 or 88E1543-B0-LKJ2C000. For QSGMII interface applications, consider the 88E1545 family. For the 196-TFBGA package option, consider the 88E1548 family. Select based on interface, temperature grade, package, and application requirements.

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MANUFACTURER INFORMATION

Marvell

The 88E1543 (88E1543-A1-LKJ2I000) belongs to the Alaska® family of Gigabit Ethernet transceivers from Marvell Technology Group. The Alaska Quad family of single-chip devices contains four independent Gigabit Ethernet transceivers on a single monolithic IC. Each transceiver performs all the physical layer functions for 1000BASE-T and 100BASE-TX full or half-duplex Ethernet on CAT 5 twisted pair cable, and 10BASE-T full or half-duplex Ethernet on CAT 3, 4, and 5 cable. The Alaska 88E1543 device supports SGMII on the MAC interface in a Copper to SGMII application, and can also be configured to operate in SGMII (System) to Auto-Media Copper/Fiber mode for mixed media applications. The device is widely used in Enterprise, embedded, consumer, and Metro/service provider market segments.

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Technical Information Disclaimer

This technical guide is provided for product identification and preliminary reference only. Electrical limits, package dimensions, pin configuration, product status, and application suitability must be verified using current official manufacturer documentation before design, procurement, or production.

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Specifications

Product Attribute: Attribute Value

Part Number: 88E1543-A1-LKJ2I000

Manufacturer: Marvell Semiconductor, Inc.

Package: 128-LQFP Exposed Pad

Series: Alaska®

Package/Case: 128-LQFP Exposed Pad

Packaging: Tray

Product Status: Active

Type: Transceiver

Protocol: IEEE 1149.1, IEEE 802.3

Number of Drivers/Receivers: 4/4

Duplex: Full, Half

Receiver Hysteresis: 360 mV

Data Rate: 10Mbps, 100Mbps, 1Gbps

Voltage - Supply: 1.71V ~ 1.89V, 2.38V ~ 2.63V, 3.13V ~ 3.47V

Operating Temperature: -40°C to +85°C (Industrial)

Grade: -

Qualification: -

Mounting Type: Surface Mount

Supplier Device Package: 128-LQFP-EP (14x20)

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Part Number: 88E1543-A1-LKJ2I000

Manufacturer: Marvell Semiconductor, Inc.

Package: 128-LQFP Exposed Pad

Category: Drivers, Receivers, Transceivers

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