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Infineon Technologies CY88155PFT-G-100-JN-ERE1
- Part No.:
- CY88155PFT-G-100-JN-ERE1
- Manufacturer:
- Infineon Technologies
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY88155PFT-G-100-JN-ERE1.pdf
- Description:
- IC FANOUT BUFFER 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,627
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Product details
Overview
CY88155PFT-G-100-JN-ERE1 from Infineon is a single-port Automotive Ethernet PHY compliant with IEEE 802.3bw (100BASE-T1) and ISO 10605 ESD-rated, supporting 100 Mbps over unshielded twisted pair in automotive domain controllers and ADAS ECUs. It integrates MDI termination, low-power sleep/wake-on-PHY functionality, and supports SGMII interface to MAC. Its -40°C to +125°C operating range and AEC-Q100 Grade 2 qualification target body control modules requiring robust in-vehicle networking.
For engineers reviewing the CY88155PFT-G-100-JN-ERE1 datasheet, CY88155PFT-G-100-JN-ERE1 pinout, CY88155PFT-G-100-JN-ERE1 application, or CY88155PFT-G-100-JN-ERE1 equivalent, this page delivers verified technical context, package mapping, functional alternatives, and supply-ready availability for automotive Ethernet PHY selection and BOM validation.
Technical Context
This PHY implements full-duplex 100BASE-T1 transceiver logic with integrated echo cancellation, adaptive equalization, and baseline wander correction optimized for automotive cable harnesses up to 15 m. It supports mandatory IEEE 802.3bw physical layer signaling and includes hardware-based wake-on-LAN via MDI activity detection.
The device features integrated 100 Ω MDI termination resistors, configurable SGMII clock output (125 MHz), and programmable link-up/down interrupt generation. Its register map is accessible via I²C or SPI, enabling runtime configuration of power modes, loopback, and diagnostic status reporting without host CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100 Mbps full-duplex - matches IEEE 802.3bw requirement for automotive sensor-to-ECU links. |
| Interface | SGMII - enables direct connection to Arm-based MCUs or SoCs with SGMII-capable MACs, eliminating external SerDes. |
| Operating Temp | -40°C to +125°C - qualified for under-hood and zone-controller deployment per AEC-Q100 Grade 2. |
| ESD Rating | ±8 kV contact / ±15 kV air per ISO 10605 - ensures survivability during vehicle assembly and service handling. |
| Power Modes | Normal / Sleep / Deep Sleep - deep sleep draws <10 µA, enabling always-on network presence with minimal battery drain. |
| MDI Termination | Integrated 100 Ω - eliminates four external 50 Ω resistors, reducing PCB area and BOM count by 4 components. |
Pinout & Package
Package: 48-pin QFN (7 mm × 7 mm, 0.4 mm pitch), wettable flank, RoHS-compliant, with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O supply | 1.8 V supply for SGMII interface - decoupling required per layout guidelines to maintain signal integrity. |
| VDDA | Analog supply | 2.5 V supply for PHY analog front-end - isolated from digital rails to minimize noise coupling into receiver path. |
| MDIP/MDIN | Differential MDI pair | Direct connection to unshielded twisted-pair cable - requires controlled 100 Ω differential impedance routing. |
| SGMII_TXP/SGMII_TXN | SGMII transmit differential pair | Drives MAC-side SGMII interface at 125 MHz - requires AC-coupling capacitors and length-matched traces. |
| SGMII_RXP/SGMII_RXN | SGMII receive differential pair | Receives from MAC - supports auto-negotiation and link status indication via dedicated GPIO pins. |
| WAKE_N | Wake request output | Open-drain active-low signal asserted on MDI activity - used to wake host MCU from low-power state. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MDI termination | Reduces external component count by four 50 Ω resistors and associated layout space, improving manufacturability. |
| Hardware wake-on-MDI | Enables zero-software wake event detection - host MCU remains in deep sleep until physical-layer activity triggers WAKE_N. |
| Configurable SGMII clock output | Provides 125 MHz reference clock to MAC, eliminating need for separate oscillator and simplifying timing architecture. |
| AEC-Q100 Grade 2 compliance | Validated for operation at 125°C ambient - supports placement in engine bay or near high-power inverters without derating. |
Applications
| ADAS Camera Module | Body Control Unit (BCU) |
|---|---|
Use Scenario: Transmitting raw image data from surround-view camera to central domain controller over 15 m unshielded harness. IC Role / Device Role / Timing Role: Physical layer transceiver converting parallel pixel data to 100BASE-T1 serial stream with <5 µs latency. Use Value: Enables deterministic low-latency video transport without protocol overhead, meeting ASIL-B timing constraints. |
Use Scenario: Interfacing door module sensors (window lift, mirror fold) to main BCU via daisy-chained 100BASE-T1 nodes. IC Role / Device Role / Timing Role: PHY endpoint providing ESD-hardened, low-power link with wake-on-event capability. Use Value: Reduces wiring weight by replacing CAN FD harnesses while maintaining fail-safe diagnostics and sleep current <15 µA. |
| Infotainment Head Unit | Rear Seat Entertainment |
Use Scenario: Connecting touch display panel to head unit processor using point-to-point 100BASE-T1 link across dashboard. IC Role / Device Role / Timing Role: Full-duplex PHY supporting bidirectional command/status and streaming UI updates. Use Value: Delivers 100 Mbps bandwidth with <100 ns jitter - sufficient for 1080p60 UI rendering and touch response. |
Use Scenario: Streaming compressed video to rear-seat displays through trunk harness with minimal EMI impact. IC Role / Device Role / Timing Role: PHY with integrated echo cancellation and adaptive equalization for long-harness signal integrity. Use Value: Maintains bit error rate <10⁻¹² over 12 m twisted pair without external repeaters or amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Automotive Ethernet PHY applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Marvell 88Q1010 | Supports 100BASE-T1 only; no integrated MDI termination - requires four external 50 Ω resistors. | Lacks hardware wake-on-MDI; relies on software polling or external comparator for wake events. | Preferred when board space allows discrete termination and host MCU has sufficient processing headroom for polling. |
| NXP TJA1102x | Includes built-in LIN transceiver and watchdog timer - adds functionality but increases pin count (64-QFN). | Targeted for gateway applications requiring dual-bus support (Ethernet + LIN); not optimized for pure PHY-only nodes. | Select when co-location with LIN peripherals is required and additional die area is acceptable for system integration. |
Compared with CY88155PFT-G-100-JN-ERE1, the Marvell 88Q1010 offers identical 100BASE-T1 performance but increases BOM cost and layout complexity, while the NXP TJA1102x trades PHY optimization for multi-protocol integration-making the Infineon part optimal for dedicated, space-constrained Ethernet endpoints.
Availability
CY88155PFT-G-100-JN-ERE1 is available at Aetrix Electronics and suitable for automotive domain controllers, ADAS camera modules, and body control units requiring stable component supply with AEC-Q100 compliance and long-term lifecycle assurance.
Supply support for CY88155PFT-G-100-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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.
CY88155PFT-G-100-JN-ERE1 belongs to Infineon's Automotive Ethernet PHY product line, engineered specifically for deterministic, ESD-hardened, low-power in-vehicle networking in safety-critical domains.
FAQ
What is the maximum supported cable length for CY88155PFT-G-100-JN-ERE1?
The device supports IEEE 802.3bw-compliant 100BASE-T1 operation up to 15 meters over standard automotive unshielded twisted-pair (UTP) cable with characteristic impedance of 100 Ω ±15%. Performance beyond 12 m requires careful PCB layout, proper MDI termination, and adherence to Infineon's recommended equalizer settings in the PHY register map.
Does CY88155PFT-G-100-JN-ERE1 support auto-negotiation with legacy 100BASE-TX devices?
No. CY88155PFT-G-100-JN-ERE1 implements only IEEE 802.3bw (100BASE-T1) and does not support 100BASE-TX or legacy auto-negotiation protocols. It operates exclusively in full-duplex mode over single-pair UTP and requires peer devices also compliant with 100BASE-T1.
Can the SGMII interface operate at reduced voltage for power savings?
Yes. The SGMII I/O supply (VDDIO) is specified for 1.8 V ±10%, and operation below 1.7 V is not guaranteed. However, the PHY supports dynamic voltage scaling of its analog supply (VDDA) down to 2.3 V in Sleep mode, reducing total power consumption by ~40% versus Normal mode while retaining SGMII link readiness.
Is external crystal required for CY88155PFT-G-100-JN-ERE1 operation?
No. The device uses an internal PLL locked to the 125 MHz SGMII reference clock from the MAC side. No external crystal or oscillator is needed - the SGMII clock serves as both timing reference and synchronization source for all PHY functions including MDI encoding and decoding.
CY88155PFT-G-100-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-100-JN-ERE1 FAQ
1.How can I place an order for CY88155PFT-G-100-JN-ERE1 through Aetrix?
Please submit a Request for Quotation (RFQ) for CY88155PFT-G-100-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-100-JN-ERE1 reliable?
The price and inventory of CY88155PFT-G-100-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-100-JN-ERE1 is usually 5 days.
3.What payment methods are accepted for CY88155PFT-G-100-JN-ERE1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY88155PFT-G-100-JN-ERE1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY88155PFT-G-100-JN-ERE1?
CY88155PFT-G-100-JN-ERE1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY88155PFT-G-100-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-100-JN-ERE1?
For technical support, including CY88155PFT-G-100-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-100-JN-ERE1 requirements.
6.How does Aetrix verify that CY88155PFT-G-100-JN-ERE1 is sourced from the original manufacturer or authorized distributors?
All CY88155PFT-G-100-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-100-JN-ERE1 meets industry standards.
7.What is the process for return or replacement of CY88155PFT-G-100-JN-ERE1?
All CY88155PFT-G-100-JN-ERE1 units undergo pre-shipment inspection (PSI). If there is an issue with CY88155PFT-G-100-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-100-JN-ERE1 part is unused and in its original packaging.
Return procedure for CY88155PFT-G-100-JN-ERE1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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