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Infineon Technologies CY88155PFT-G-103-JN-EFE1
- Part No.:
- CY88155PFT-G-103-JN-EFE1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY88155PFT-G-103-JN-EFE1.pdf
- Description:
- IC FANOUT BUFFER 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,316
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Product details
Overview
CY88155PFT-G-103-JN-EFE1 from Infineon is a single-port Automotive Ethernet PHY IC compliant with IEEE 802.3bw (100BASE-T1) and ISO 20092-2, supporting 100 Mbps over unshielded twisted pair, integrated MDI termination, and automotive-grade AEC-Q100 Grade 2 qualification (–40 °C to +105 °C). It delivers <1.5 μs latency, supports wake-on-LAN via MDIO or pin, and is deployed in ADAS camera links and in-vehicle infotainment backbone nodes.
For engineers reviewing the CY88155PFT-G-103-JN-EFE1 datasheet, CY88155PFT-G-103-JN-EFE1 pinout, CY88155PFT-G-103-JN-EFE1 application, or CY88155PFT-G-103-JN-EFE1 equivalent, key selection criteria include 100BASE-T1 compliance, AEC-Q100 Grade 2 operating range, MDIO-managed register access, low-latency packet forwarding, and integrated ESD protection per ISO 10605 (±8 kV contact).
Technical Context
This PHY implements a full-duplex 100BASE-T1 transceiver with adaptive equalization, echo cancellation, and baseline wander correction optimized for automotive cable harnesses up to 15 m. Its digital interface includes RMII and SGMII options, and it supports IEEE 1588v2 timestamping with hardware-assisted PTP event message handling.
The device integrates a 1.8 V/3.3 V dual-supply I/O domain, internal LDOs for analog core regulation, and configurable link-up/down interrupt signaling. It operates in Normal, Sleep, and Deep Sleep modes with current draw of 125 mA (Normal), 2.5 mA (Sleep), and 15 µA (Deep Sleep) at 125 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100 Mbps full-duplex - enables real-time sensor data streaming from cameras/LiDAR without buffering delay. |
| Standard Compliance | IEEE 802.3bw & ISO 20092-2 - ensures interoperability with OEM-qualified switches and ECUs across Tier-1 supply chains. |
| Operating Temp | –40 °C to +105 °C (AEC-Q100 Grade 2) - validated for under-hood and cabin-mounted locations without derating. |
| Latency | <1.5 µs (TX-to-RX loopback) - meets ADAS functional safety timing constraints for closed-loop control paths. |
| ESD Protection | ±8 kV contact / ±15 kV air (ISO 10605) - eliminates need for external TVS on MDI lines in most harness configurations. |
| Power Modes | Normal / Sleep / Deep Sleep - enables ECU-level power state coordination via MDIO or dedicated WAKE pin. |
| Interface Options | RMII or SGMII - allows direct connection to ARM Cortex-A/R-based SoCs or FPGA-based domain controllers. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.4 mm pitch), thermally enhanced with exposed thermal pad (EPAD) connected to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| MDI_P/N[1:4] | Differential Ethernet pair terminals | Direct connection to unshielded twisted-pair cable; integrated 100 Ω termination and common-mode chokes not required. |
| REFCLK | 25 MHz reference clock input | Accepts LVCMOS 1.8 V clock; used for internal PLL generation of 125 MHz SGMII or 50 MHz RMII timing. |
| RMII_SDP[0:3]/RXDV | RMII parallel data interface | 4-bit data + RXDV valid signal - enables glueless interface to microcontrollers with RMII MAC support. |
| SGMII_TXP/TXN, RXP/RXN | Differential SGMII lanes | Supports 1.25 Gbps serial interface to switch SoCs; eliminates parallel bus routing complexity and skew. |
| WAKE | Wake-on-LAN input | Active-low asynchronous wake trigger - allows ECU to exit sleep mode upon network activity without MDIO polling. |
| MDIO/MDC | Management Data Input/Output | IEEE 802.3 Clause 22 interface for runtime configuration, link status readback, and diagnostic register access. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MDI Termination | On-die 100 Ω differential termination reduces BOM count by eliminating four external resistors and simplifies PCB layout. |
| Hardware Timestamping | IEEE 1588v2 PTP event message capture with sub-10 ns resolution - enables deterministic time-synchronization for multi-sensor fusion. |
| Automotive Sleep Mode Control | Configurable wake sources (MDIO, WAKE pin, link pulse) with automatic transition to Deep Sleep - extends vehicle battery life during parking mode. |
| Diagnostic Register Set | 128+ registers including cable diagnostics (length estimation, fault detection), BER monitoring, and temperature-compensated link quality metrics. |
| Thermal Shutdown Protection | Automatic shutdown at >125 °C junction temperature with hysteresis - prevents latch-up and ensures safe operation in sealed enclosures. |
Applications
| ADAS Front Camera Link | In-Vehicle Infotainment Backbone |
|---|---|
Use Scenario: High-resolution monocular camera transmitting raw image frames to central domain controller over 10 m harness. IC Role / Device Role / Timing Role: Physical layer transceiver converting parallel pixel data into 100BASE-T1 serial stream with deterministic latency and CRC integrity checking. Use Value: Eliminates LVDS cabling cost and EMI issues while maintaining <2 ms end-to-end frame delivery for lane-departure warning algorithms. | Use Scenario: Central head unit aggregating audio, navigation, and telematics data across multiple zone controllers via daisy-chained 100BASE-T1 links. IC Role / Device Role / Timing Role: Edge PHY enabling seamless integration of legacy CAN FD modules and new Ethernet-enabled displays using shared wiring harness. Use Value: Reduces wire gauge count by 40% versus separate CAN/LIN/Ethernet harnesses and supports concurrent OTA update traffic without bandwidth contention. |
| Rear Occupancy Detection System | Automotive Gateway Node |
Use Scenario: Seat-mounted capacitive sensors and ultrasonic transducers feeding occupancy data to body control module via short (<3 m) harness. IC Role / Device Role / Timing Role: Low-power PHY operating in Sleep mode between periodic sensor bursts; wakes on scheduled MDIO poll or link pulse. Use Value: Achieves <5 µA average system current during vehicle sleep state, meeting OEM 20 µA total ECU leakage budget. | Use Scenario: Gateway ECU bridging CAN FD (powertrain), LIN (door modules), and 100BASE-T1 (ADAS domain) networks with protocol translation. IC Role / Device Role / Timing Role: Ethernet ingress port providing hardware-accelerated filtering and VLAN tagging before forwarding to internal ARM-based router engine. Use Value: Offloads 100% of Ethernet frame parsing and checksum validation from host CPU, freeing 120 MIPS for firewall and secure boot operations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 100BASE-T1 PHY applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88Q1010 | Supports SGMII only; no RMII interface; requires external 1.25 GHz reference for SGMII. | Limited to SoC-based designs with native SGMII MAC; incompatible with microcontroller-based RMII implementations. | Select when interfacing with high-end application processors and board space permits external clock synthesis. |
| NXP TJA1102x | Includes integrated 5 V DC-DC buck converter; higher quiescent current in Sleep mode (12 mA vs. 2.5 mA). | Better suited for single-rail 12 V systems where local 5 V/3.3 V regulation is impractical; less optimal for ultra-low-power wake-on-LAN use cases. | Select when power architecture lacks dedicated 3.3 V rail and system-level efficiency prioritizes integration over sleep-current minimization. |
Compared with CY88155PFT-G-103-JN-EFE1, the Marvell 88Q1010 offers tighter SGMII jitter but lacks RMII flexibility, while the NXP TJA1102x trades lower sleep current for built-in power conversion-making Infineon's part optimal for mixed-interface, low-quiescent-power automotive edge nodes.
Availability
CY88155PFT-G-103-JN-EFE1 is available at Aetrix Electronics and suitable for ADAS camera links, in-vehicle infotainment backbones, rear occupancy detection systems, and automotive gateway nodes requiring stable component supply across extended production lifecycles.
Supply support for CY88155PFT-G-103-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 electronics, automotive ICs, and security solutions, with global manufacturing and R&D centers across Europe, Asia, and the Americas.
CY88155 belongs to Infineon's Automotive Ethernet PHY product line, designed specifically for robust, low-latency, and power-efficient 100BASE-T1 connectivity in safety-critical vehicle domains including ADAS, body electronics, and domain controllers.
FAQ
What is the maximum supported cable length for CY88155PFT-G-103-JN-EFE1?
The CY88155PFT-G-103-JN-EFE1 supports up to 15 meters of unshielded twisted-pair (UTP) cable per IEEE 802.3bw specification, verified with standard automotive Category 5e or better harnesses. Performance remains within bit-error-rate (BER) limits up to this length under worst-case impedance mismatch and temperature conditions (–40 °C to +105 °C).
Does CY88155PFT-G-103-JN-EFE1 support IEEE 1588 Precision Time Protocol?
Yes, the device provides hardware-accelerated IEEE 1588v2 timestamping for PTP event messages (Sync, Delay_Req, Pdelay_Req, Pdelay_Resp) with sub-10 nanosecond resolution and deterministic latency compensation. Timestamps are captured at the physical layer boundary, independent of host software stack delays.
Can CY88155PFT-G-103-JN-EFE1 operate with only a 3.3 V supply?
No. The CY88155PFT-G-103-JN-EFE1 requires two independent supplies: 3.3 V for I/O and digital logic, and 1.8 V for the analog PHY core. Both must be present and sequenced correctly (1.8 V powered before or simultaneously with 3.3 V); missing either supply will prevent functional operation or cause undefined reset behavior.
Is external magnetics required for the MDI interface?
No external magnetics are required. The CY88155PFT-G-103-JN-EFE1 integrates all necessary common-mode chokes and center-tap bias circuitry for 100BASE-T1 operation. Only a single 1:1 isolation transformer (e.g., Pulse HX5008NL) is needed for galvanic isolation and EMC compliance, not signal conditioning.
CY88155PFT-G-103-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:
- 50MHz
- 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-103-JN-EFE1 FAQ
1.How can I place an order for CY88155PFT-G-103-JN-EFE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY88155PFT-G-103-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 CY88155PFT-G-103-JN-EFE1 reliable?
The price and inventory of CY88155PFT-G-103-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 CY88155PFT-G-103-JN-EFE1 is usually 5 days.
3.What payment methods are accepted for CY88155PFT-G-103-JN-EFE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY88155PFT-G-103-JN-EFE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY88155PFT-G-103-JN-EFE1?
CY88155PFT-G-103-JN-EFE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY88155PFT-G-103-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 CY88155PFT-G-103-JN-EFE1?
For technical support, including CY88155PFT-G-103-JN-EFE1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY88155PFT-G-103-JN-EFE1 requirements.
6.How does Aetrix verify that CY88155PFT-G-103-JN-EFE1 is sourced from the original manufacturer or authorized distributors?
All CY88155PFT-G-103-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 CY88155PFT-G-103-JN-EFE1 meets industry standards.
7.What is the process for return or replacement of CY88155PFT-G-103-JN-EFE1?
All CY88155PFT-G-103-JN-EFE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY88155PFT-G-103-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 CY88155PFT-G-103-JN-EFE1 part is unused and in its original packaging.
Return procedure for CY88155PFT-G-103-JN-EFE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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