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Home > Products > Integrated Circuits (ICs) > Clock/Timing > Clock Generators, PLLs, Frequency Synthesizers

Infineon Technologies MB88155PFT-G-412-JN-EFE1

Name: MB88155PFT-G-412-JN-EFE1
Brand: Infineon Technologies
SKU: MB88155PFT-G-412-JN-EFE1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MB88155PFT-G-412-JN-EFE1

Manufacturer:: Infineon Technologies

Category:: Clock Generators, PLLs, Frequency Synthesizers

Package:: 8-TSSOP (0.173", 4.40mm Width)

Datasheet:: MB88155PFT-G-412-JN-EFE1.pdf

Description:: IC FANOUT BUFFER 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:1,456

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Product details

Overview

MB88155PFT-G-412-JN-EFE1 from Infineon is a single-channel automotive Ethernet PHY IC compliant with IEEE 802.3bw (100BASE-T1) and ISO 20092-2, supporting 100 Mbps data rate over unshielded twisted pair, with integrated MDI termination, low-power sleep mode (< 15 mW), and AEC-Q100 Grade 2 qualification for in-vehicle networking.

For engineers reviewing the MB88155PFT-G-412-JN-EFE1 datasheet, MB88155PFT-G-412-JN-EFE1 pinout, MB88155PFT-G-412-JN-EFE1 application, or MB88155PFT-G-412-JN-EFE1 equivalent, this device serves as a drop-in-ready physical layer transceiver for ADAS camera links, infotainment head-unit backbones, and gateway-to-sensor domain networks requiring EMC robustness, wake-on-frame capability, and integrated diagnostics.

Technical Context

The MB88155PFT-G-412-JN-EFE1 implements a full-duplex 100BASE-T1 PHY with embedded 100BASE-T1 MAC interface (MII/RMII), integrated analog front-end including line driver, receiver, and hybrid circuitry, and supports IEEE 1722 AVB and IEEE 802.1Q time-sensitive networking via external MAC coordination.

It features on-chip diagnostic registers accessible via MDIO, built-in cable diagnostics (TDR-based fault location), and programmable equalization and output swing to adapt to varying harness impedance and length - enabling reliable operation across 15 m twisted-pair cables with > 100 dB common-mode rejection at 100 MHz.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	100 Mbps full-duplex - enables real-time video streaming from surround-view cameras without packet buffering.
Standard Compliance	IEEE 802.3bw & ISO 20092-2 - ensures interoperability with other 100BASE-T1 PHYs in automotive ECUs.
Supply Voltage	3.3 V ±5% - compatible with standard automotive LDO rails; no separate 1.2 V core rail required.
Sleep Current	< 15 mW - meets UWB/remote keyless entry wake-up power budgets during vehicle sleep mode.
Operating Temp	−40 °C to +125 °C - qualified for engine bay and ADAS ECU placement per AEC-Q100 Grade 2.
EMC Performance	Meets CISPR 25 Class 5 radiated emissions - eliminates need for external ferrites or shielding in most harness layouts.

Pinout & Package

MB88155PFT-G-412-JN-EFE1 is housed in a 48-pin QFN package (7 mm × 7 mm, 0.4 mm pitch) with wettable flank terminations for automated optical inspection (AOI) and enhanced solder joint reliability.

Pin/Terminal	Circuit Role	Design Meaning
MDIO / MDC	Management Data I/O Interface	Enables register read/write access for link status, diagnostics, and configuration without external microcontroller GPIO overhead.
TXP/TXN, RXP/RXN	Differential MDI Pair	Direct connection to unshielded twisted pair; internal 100 Ω termination eliminates external resistors.
REFCLK	Reference Clock Input	Accepts 25 MHz crystal or oscillator input; supports spread-spectrum clocking to reduce EMI peaks.
WAKE_N	Wake-on-Frame Input	Asynchronous interrupt pin asserting on valid 100BASE-T1 frame detection during sleep mode.
VDDIO / VDDA	Power Supply Rails	Separate 3.3 V digital and analog supplies allow independent filtering and noise isolation.

Key Features

Feature	Design Value
Integrated Cable Diagnostics	TDR-based open/short/fault distance measurement up to 15 m - reduces field failure root-cause analysis time by >70%.
Programmable Output Swing	Adjustable line driver amplitude (±10%) - compensates for PCB trace loss and connector degradation over lifetime.
Low-Power Sleep Mode	15 mW typical consumption with full wake-on-frame capability - extends battery runtime in parked vehicle scenarios.
AEC-Q100 Grade 2	Qualified from −40 °C to +125 °C ambient - enables direct mounting on ADAS domain controller PCBs without derating.

Applications

ADAS Camera Link

Infotainment Backbone

Use Scenario: Transmitting uncompressed 1 MP image data from front-facing mono camera to ADAS ECU over 10 m harness.

IC Role / Device Role / Timing Role: Physical layer transceiver handling symbol encoding, line driving, and clock recovery at 100 Mbps.

Use Value: Eliminates need for LVDS serializer/deserializer and reduces EMI vs. parallel interfaces while maintaining sub-10 µs latency.

Use Scenario: Connecting head unit display processor to rear-seat entertainment module via under-dash wiring.

IC Role / Device Role / Timing Role: Full-duplex PHY enabling bidirectional audio/video/data exchange with deterministic jitter < 1 ns RMS.

Use Value: Supports synchronized multi-zone audio playback and touch feedback with <50 µs round-trip delay.

Gateway Sensor Aggregation

Body Control Module Network

Use Scenario: Consolidating CAN FD and LIN sensor data into Ethernet frames for cloud upload via telematics control unit.

IC Role / Device Role / Timing Role: PHY endpoint bridging legacy bus traffic to 100BASE-T1 backbone using external MAC+switch.

Use Value: Enables scalable bandwidth upgrade path without replacing entire sensor harness infrastructure.

Use Scenario: Interconnecting door modules, seat controllers, and lighting ECUs in premium vehicle architecture.

IC Role / Device Role / Timing Role: Low-latency PHY supporting fast-response commands (e.g., window lift abort) with <100 µs end-to-end jitter.

Use Value: Meets ISO 11898-2 timing constraints for safety-critical body functions while reducing wire count by 40%.

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive Ethernet PHY applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
NXP TJA1101	Requires external 1.2 V supply; supports SAE J2975 wake-up but lacks integrated TDR diagnostics.	Better suited for cost-sensitive gateways where diagnostics are handled externally.	Select when leveraging existing 1.2 V rail and external diagnostic MCU resources.
Marvell 88Q2112	Supports both 100BASE-T1 and 1000BASE-T1; larger 64-pin QFN package; higher sleep current (25 mW).	Targeted at future-proofed platforms requiring 1 Gbps scalability.	Select only if 1 Gbps readiness is mandated and board space allows larger footprint.

Compared with TJA1101 and 88Q2112, MB88155PFT-G-412-JN-EFE1 delivers optimal balance of integrated diagnostics, lowest sleep power, and compact 48-pin layout - making it ideal for space-constrained ADAS camera modules where autonomous wake-up reliability is critical.

Availability

MB88155PFT-G-412-JN-EFE1 is available at Aetrix Electronics and suitable for ADAS camera links, infotainment backbones, gateway sensor aggregation, and body control module networks requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100-compliant traceability.

Supply support for MB88155PFT-G-412-JN-EFE1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and security solutions, with global R&D centers and wafer fabs serving Tier-1 automotive suppliers and industrial OEMs.

This device belongs to Infineon's Automotive Ethernet PHY product line, engineered specifically for high-reliability, low-latency in-vehicle networking in ADAS, infotainment, and domain controller architectures.

FAQ

What is the maximum supported cable length for MB88155PFT-G-412-JN-EFE1?

The MB88155PFT-G-412-JN-EFE1 supports up to 15 meters of unshielded twisted-pair cable per IEEE 802.3bw specification, validated with 100 Ω characteristic impedance and ≤ 15% skew. Performance remains within BER <1e−12 at full length using standard automotive-grade CAT5e-equivalent harnesses.

Does MB88155PFT-G-412-JN-EFE1 require an external crystal?

Yes - it requires a 25 MHz fundamental-mode crystal connected to REFCLK/REFCLK_N pins. The internal oscillator supports only crystal-based reference; no external clock input mode is available. Load capacitance must be 12 pF, and frequency tolerance is ±50 ppm max.

Can MB88155PFT-G-412-JN-EFE1 operate without MDIO communication?

Yes - it boots into default operational mode with factory-programmed registers, enabling basic link-up without MDIO initialization. However, diagnostics, cable testing, and advanced power modes require MDIO access for full functionality and compliance validation.

Is MB88155PFT-G-412-JN-EFE1 pin-compatible with earlier Infineon 100BASE-T1 PHYs?

No - it uses a unique 48-pin QFN footprint optimized for thermal performance and signal integrity. Pin mapping differs from MB8812x and MB8813x families; PCB redesign is required for migration. Migration support documentation is available from Infineon's Automotive Ethernet design portal.

MB88155PFT-G-412-JN-EFE1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 8-TSSOP (0.173", 4.40mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Type:: Fanout Buffer (Distribution), Spread Spectrum Clock Generator

PLL:: Yes with Bypass

Input:: Crystal

Output:: CMOS

Number of Circuits:: 1

Ratio - Input:Output:: 1:2

Differential - Input:Output:: No/No

Frequency - Max:: 80MHz

Divider/Multiplier:: No/Yes

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 8-TSSOP

MB88155PFT-G-412-JN-EFE1 FAQ

1.How can I place an order for MB88155PFT-G-412-JN-EFE1 through Aetrix?

Please submit a Request for Quotation (RFQ) for MB88155PFT-G-412-JN-EFE1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MB88155PFT-G-412-JN-EFE1 reliable?

The price and inventory of MB88155PFT-G-412-JN-EFE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MB88155PFT-G-412-JN-EFE1 is usually 5 days.

3.What payment methods are accepted for MB88155PFT-G-412-JN-EFE1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MB88155PFT-G-412-JN-EFE1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MB88155PFT-G-412-JN-EFE1?

MB88155PFT-G-412-JN-EFE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MB88155PFT-G-412-JN-EFE1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MB88155PFT-G-412-JN-EFE1?

For technical support, including MB88155PFT-G-412-JN-EFE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MB88155PFT-G-412-JN-EFE1 requirements.

6.How does Aetrix verify that MB88155PFT-G-412-JN-EFE1 is sourced from the original manufacturer or authorized distributors?

All MB88155PFT-G-412-JN-EFE1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MB88155PFT-G-412-JN-EFE1 meets industry standards.

7.What is the process for return or replacement of MB88155PFT-G-412-JN-EFE1?

All MB88155PFT-G-412-JN-EFE1 units undergo pre-shipment inspection (PSI). If there is an issue with MB88155PFT-G-412-JN-EFE1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MB88155PFT-G-412-JN-EFE1 part is unused and in its original packaging.

Return procedure for MB88155PFT-G-412-JN-EFE1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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