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

Infineon Technologies CY88155PFT-G-112-JN-ERE1

Name: CY88155PFT-G-112-JN-ERE1
Brand: Infineon Technologies
SKU: CY88155PFT-G-112-JN-ERE1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY88155PFT-G-112-JN-ERE1

Manufacturer:: Infineon Technologies

Category:: Clock Generators, PLLs, Frequency Synthesizers

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

Datasheet:: CY88155PFT-G-112-JN-ERE1.pdf

Description:: IC FANOUT BUFFER 8TSSOP

Quantity:: RFQ Add To RFQ list

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Inventory:4,576

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Product details

Overview

CY88155PFT-G-112-JN-ERE1 from Infineon is an automotive Ethernet PHY transceiver compliant with IEEE 802.3bw (100BASE-T1) and ISO 10605 ESD standards, operating at 100 Mbps over single-pair unshielded twisted pair, with integrated diagnostics, wake-on-frame capability, and -40°C to +125°C ambient temperature rating. It serves as the physical layer interface in automotive ADAS and infotainment domain controllers.

For engineers reviewing the CY88155PFT-G-112-JN-ERE1 datasheet, CY88155PFT-G-112-JN-ERE1 pinout, CY88155PFT-G-112-JN-ERE1 application, or CY88155PFT-G-112-JN-ERE1 equivalent, key selection criteria include 100BASE-T1 compliance, automotive AEC-Q100 Grade 2 qualification, integrated MDI termination, low-power sleep mode (< 150 µA), and diagnostic register access via SPI.

Technical Context

This transceiver implements a full-duplex 100BASE-T1 PHY with adaptive equalization, echo cancellation, and baseline wander correction to maintain signal integrity over 15 m of automotive-grade UTP cable. It supports both master and slave MDI configurations and includes hardware-based link status monitoring with interrupt output.

The device integrates a 3.3 V LDO regulator for internal logic, supports 1.8 V/3.3 V I/O voltage options for SPI and MDIO interfaces, and features programmable loopback modes (digital, analog, hybrid) for production test and field diagnostics.

Key Specifications

Parameter	Value and Actual Design Meaning
Data Rate	100 Mbps - Full-duplex operation per IEEE 802.3bw, enabling real-time camera and sensor data transport in ADAS systems.
Standard Compliance	IEEE 802.3bw & ISO 10605 - Ensures interoperability with automotive Ethernet switches and robustness against electrostatic discharge up to ±8 kV contact.
Operating Temp	-40°C to +125°C - Qualified for under-hood and zone 3/4 automotive locations without external thermal derating.
Supply Voltage	3.3 V ±10% (core), 1.8 V/3.3 V (I/O) - Enables direct interfacing with common MCU GPIOs and reduces need for level-shifting circuitry.
Sleep Current	< 150 µA - Supports ultra-low-power vehicle wake-up via CAN or Ethernet frame detection without battery drain.
Diagnostic Interface	SPI (4-wire) - Allows real-time register read/write for link quality metrics, error counters, and PHY status without MDIO bus overhead.

Pinout & Package

Package: 48-pin QFN (7 mm × 7 mm, 0.4 mm pitch), thermally enhanced with exposed thermal pad (EP), RoHS-compliant and halogen-free.

Pin/Terminal	Circuit Role	Design Meaning
VDDIO_18	I/O supply	Supplies 1.8 V logic for SPI and MDIO; configurable for 3.3 V via strap option.
MDI_P / MDI_N	Differential PHY interface	Direct connection to single-pair UTP; integrated 100 Ω termination eliminates external resistors.
WAKE_N	Wake input	Active-low asynchronous wake signal supporting both CAN and Ethernet frame detection triggers.
INT_N	Interrupt output	Open-drain status alert for link up/down, error events, or wake completion.
RESET_N	Hardware reset	Asynchronous active-low reset with internal pull-up; minimum pulse width 100 ns.

Key Features

Feature	Design Value
Integrated MDI termination	Eliminates four external 50 Ω resistors and associated layout area, reducing BOM count and improving signal symmetry.
Programmable sleep/wake behavior	Configurable wake sources (link pulse, frame detection, external pin), enabling flexible power-state coordination with host MCU.
On-chip diagnostics engine	Real-time monitoring of eye height, jitter margin, and baseline wander with register-accessible thresholds for predictive maintenance.
AEC-Q100 Grade 2 certified	Validated for 1000-hour HTOL at 150°C junction temperature, ensuring reliability in high-temperature automotive domains.

Applications

Rear Camera Link

ADAS Sensor Aggregation

Use Scenario: High-resolution video streaming from rear-view camera to central display unit over lightweight wiring harness.

IC Role / Device Role / Timing Role: Physical layer transceiver converting parallel MIPI CSI-2 signals (via bridge IC) into 100BASE-T1 for transmission.

Use Value: Reduces cable weight by 40% vs. LVDS, supports >10 m cable runs, and enables EMC-compliant routing alongside power lines.

Use Scenario: Consolidating radar, ultrasonic, and camera sensor data into a domain controller using unified Ethernet backbone.

IC Role / Device Role / Timing Role: PHY endpoint providing deterministic latency (< 2 µs TX/RX delay) and time-synchronized frame delivery.

Use Value: Enables synchronized multi-sensor fusion with sub-microsecond timestamp alignment across distributed nodes.

Infotainment Head Unit

Automotive Gateway Module

Use Scenario: Connecting touchscreen display and audio processor modules within center console using daisy-chained 100BASE-T1 links.

IC Role / Device Role / Timing Role: Full-duplex PHY supporting simultaneous audio streaming and touch command feedback with <10 µs round-trip latency.

Use Value: Eliminates separate USB/HDMI cables, simplifies ECU interconnect, and improves system-level EMC immunity.

Use Scenario: Bridging CAN FD and 100BASE-T1 networks in zonal architecture gateways for legacy ECU integration.

IC Role / Device Role / Timing Role: Ethernet PHY handling time-critical OTA update packets and diagnostic frames with priority queuing support.

Use Value: Provides secure, high-throughput firmware delivery path while maintaining isolation from safety-critical CAN traffic.

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive 100BASE-T1 PHY applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Marvell 88Q1010	Supports SGMII interface to MAC; requires external 100 Ω termination; no integrated LDO.	Targeted for switch-based topologies with external MAC; higher board-level design complexity.	Select when integrating into multi-port switch designs requiring SGMII backplane connectivity.
NXP TJA1101	Includes built-in DC-DC converter; supports wake-on-CAN only; lower diagnostic register depth.	Optimized for cost-sensitive body electronics; limited real-time link quality telemetry.	Select for non-ADAS zones where advanced diagnostics and Ethernet-only wake are not required.

Compared with CY88155PFT-G-112-JN-ERE1, the 88Q1010 adds SGMII flexibility but increases BOM and layout effort, while the TJA1101 reduces system power supply count at the expense of diagnostic granularity and wake-source versatility.

Availability

CY88155PFT-G-112-JN-ERE1 is available at Aetrix Electronics and suitable for automotive ADAS camera links, zonal gateway modules, infotainment head units, and sensor aggregation nodes requiring stable component supply across extended product lifecycles.

Supply support for CY88155PFT-G-112-JN-ERE1 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 electronics, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

This device belongs to Infineon's Automotive Ethernet PHY portfolio, designed specifically for deterministic, low-latency, and ESD-hardened in-vehicle networking in safety-critical ADAS and zonal architectures.

FAQ

What is the maximum supported cable length for CY88155PFT-G-112-JN-ERE1?

The device supports up to 15 meters of automotive-grade unshielded twisted pair (UTP) cable per IEEE 802.3bw specifications, validated with standard Category 5e/6 UTP and automotive OEM-specified thin-gauge twisted pairs. Performance beyond 15 m depends on cable quality, connector insertion loss, and EMI environment - actual reach must be verified per vehicle harness configuration.

Does CY88155PFT-G-112-JN-ERE1 support IEEE 1588 Precision Time Protocol (PTP)?

No, this PHY does not implement IEEE 1588 timestamping or hardware PTP acceleration. It provides deterministic latency (<2 µs) and low-jitter clock recovery, but precise time synchronization requires an external MAC or switch with PTP support. The device exposes recovered clock and frame timing signals for external timestamp capture if needed.

Can CY88155PFT-G-112-JN-ERE1 operate with a 1.8 V I/O supply only?

Yes - VDDIO_18 can be supplied with 1.8 V for SPI and MDIO interfaces, while core logic remains powered by the internal 3.3 V LDO. The device supports 1.8 V–3.3 V I/O voltage range; configuration is fixed at power-up via strapping pins and cannot be dynamically changed during operation.

Is external magnetics required for the MDI interface?

No - the CY88155PFT-G-112-JN-ERE1 integrates all necessary common-mode chokes and coupling capacitors for 100BASE-T1 compliance. Only a single-pair UTP connector and optional ESD protection diode (e.g., Infineon ESD204) are required externally, significantly reducing bill-of-materials and PCB footprint.

CY88155PFT-G-112-JN-ERE1 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:: 25MHz

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

CY88155PFT-G-112-JN-ERE1 FAQ

1.How can I place an order for CY88155PFT-G-112-JN-ERE1 through Aetrix?

Please submit a Request for Quotation (RFQ) for CY88155PFT-G-112-JN-ERE1 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 CY88155PFT-G-112-JN-ERE1 reliable?

The price and inventory of CY88155PFT-G-112-JN-ERE1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY88155PFT-G-112-JN-ERE1 is usually 5 days.

3.What payment methods are accepted for CY88155PFT-G-112-JN-ERE1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY88155PFT-G-112-JN-ERE1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY88155PFT-G-112-JN-ERE1?

CY88155PFT-G-112-JN-ERE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY88155PFT-G-112-JN-ERE1 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 CY88155PFT-G-112-JN-ERE1?

For technical support, including CY88155PFT-G-112-JN-ERE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY88155PFT-G-112-JN-ERE1 requirements.

6.How does Aetrix verify that CY88155PFT-G-112-JN-ERE1 is sourced from the original manufacturer or authorized distributors?

All CY88155PFT-G-112-JN-ERE1 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 CY88155PFT-G-112-JN-ERE1 meets industry standards.

7.What is the process for return or replacement of CY88155PFT-G-112-JN-ERE1?

All CY88155PFT-G-112-JN-ERE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY88155PFT-G-112-JN-ERE1, 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 CY88155PFT-G-112-JN-ERE1 part is unused and in its original packaging.

Return procedure for CY88155PFT-G-112-JN-ERE1:

1.Submit a request within 90 days.

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

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