Infineon Technologies CYPD4136-24LQXI
- Part No.:
- CYPD4136-24LQXI
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 24-UFQFN Exposed Pad
- Datasheet:
-
CYPD4136-24LQXI.pdf
- Description:
- IC MCD CCG4 WIRED 24QFN
- Quantity:
- Payment:

- Shipping:

Inventory:1,738
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Product details
Overview
CYPD4136-24LQXI from Cypress Semiconductor is a dual-port USB Type-C and Power Delivery 3.0 controller IC featuring an Arm® Cortex®-M0 CPU (48 MHz), 128 KB flash, 8 KB SRAM, two integrated BMC transceivers, and on-die Rp/Rd termination for UFP/DFP role detection - deployed in notebook host ports, AC adapters, and docking stations requiring full PD 3.0 compliance and fast role swap.
For engineers reviewing the CYPD4136-24LQXI datasheet, CYPD4136-24LQXI pinout, CYPD4136-24LQXI application, or CYPD4136-24LQXI equivalent, key selection criteria include dual CC-line support, VCONN FET integration, ±8-kV IEC61000-4-2 ESD on CC pins, industrial temperature range (–40 °C to +85 °C), and firmware-configurable PD messaging including extended data chunks.
Technical Context
The CYPD4136-24LQXI implements two independent USB-PD 3.0 baseband PHYs with 4b/5b encoding/decoding, BMC modulation, and analog front-end circuitry operating at 1.2 V. Each port integrates programmable current sources for RP (DFP) and Rd resistors for UFP/DRP detection, plus dead-battery termination logic that auto-disables after MCU boot.
It supports extended messaging up to 260 bytes via chunking for backward compatibility with USB-PD 2.0 systems, and enables hardware-accelerated Fast Role Swap (FR_Swap) for externally powered docks transitioning to bus-powered operation within milliseconds upon external supply loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | Arm Cortex-M0 @ 48 MHz - provides deterministic real-time response for PD protocol state machines and BMC timing-critical tasks. |
| Flash / SRAM | 128 KB flash + 8 KB SRAM - sufficient for dual-port PD stack, custom policy engine, and field-upgradable firmware without external memory. |
| USB-PD Support | Full USB-PD 3.0 compliance with extended messages and FR_Swap - enables interoperability with latest chargers, docks, and DRP devices. |
| CC Line ESD | ±8 kV contact / ±15 kV air-gap per IEC61000-4-2 Level 4 - eliminates need for external TVS diodes on CC1/CC2 lines. |
| VCONN FETs | Integrated dual 2x VCONN FETs - powers electronically marked cables (EMCA) directly from chip, reducing BOM count and layout complexity. |
| Operating Voltage | 2.7 V to 5.5 V supply - supports direct connection to VBUS or auxiliary rails without LDO pre-regulation in many adapter designs. |
| Temperature Range | –40 °C to +85 °C - qualified for industrial and mobile computing environments including laptop internal ports and wall adapters. |
Pinout & Package
Package: 4.0 mm × 4.0 mm, 0.5 mm pitch, 24-pin QFN (LQX variant), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1, CC2 | Configuration Channel I/O | Dual bidirectional BMC signaling lines for port negotiation, role detection, and PD message exchange on Port 1. |
| CC3, CC4 | Configuration Channel I/O | Dual bidirectional BMC signaling lines for Port 2 - enables true independent dual-port control without shared resources. |
| VCONN1, VCONN2 | VCONN Power Switch Output | Drives 5-V power to EMCA cable sideband use (SBU) and chip electronics; each controlled by dedicated internal FET. |
| VBUS1, VBUS2 | Power Path Monitoring Input | Analog inputs for VBUS voltage sensing on each port - used for sink/source detection, overvoltage protection, and PD contract validation. |
| GPIO[0:26] | Configurable Digital I/O | 27 general-purpose pins supporting interrupt, PWM, ADC mux, and hot-swap I²C - configurable for system control, status LEDs, or inter-IC signaling. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Independent PD Subsystems | Two fully isolated USB-PD 3.0 PHYs with separate BMC encoders/decoders, timers, and CC line drivers - eliminates cross-port interference and enables asymmetric role assignment (e.g., DFP+UFP). |
| Firmware-Configurable Role Logic | Runtime reconfiguration of Rp/Rd values, dead-battery behavior, and PD message policies via EZ-PD Configuration Utility - avoids hardware respins for design iterations. |
| Integrated Analog Peripherals | Four 8-bit SAR ADCs (2 per port) with internal bandgap reference and temperature sensor - enables accurate VBUS monitoring, thermal derating, and cable ID reading without external components. |
| Low-Power Deep Sleep Mode | 2.5 µA quiescent current with CC line wake capability - extends battery life in portable docks and enables always-on port presence detection. |
| Hot-Swappable I/Os | CC1/CC2 and Port 1 I²C pins rated for hot insertion - prevents latch-up or damage during live cable connect/disconnect events in end-user applications. |
Applications
| Notebook Host Port Controller | AC Power Adapter Controller |
|---|---|
Use Scenario: Embedded in ultrabook Type-C port to manage charging, display alt-mode negotiation, and PD contract establishment with upstream sources. IC Role / Device Role / Timing Role: Dual-role port controller executing PD 3.0 state machine, BMC timing-critical decoding, and fast role swap on CC lines. Use Value: Enables single-chip support for 100-W charging, DisplayPort Alt Mode handshaking, and seamless transition between charger and battery power without user intervention. | Use Scenario: Core controller in compact GaN-based USB-C wall adapters delivering up to 65 W with programmable voltage/current profiles. IC Role / Device Role / Timing Role: Fixed DFP controller managing VBUS regulation feedback, safety shutdown, and PD contract enforcement with connected devices. Use Value: Reduces external component count by integrating VCONN FETs, Rp current sources, and CC line ESD protection - shrinking PCB area by >30% vs discrete solutions. |
| Docking Station Port Manager | USB-C Monitor Hub Controller |
Use Scenario: Central PD arbiter in multi-port Thunderbolt/USB4 docks coordinating power allocation across downstream peripherals and upstream host. IC Role / Device Role / Timing Role: Dual-port DRP controller performing real-time power budgeting, FR_Swap coordination, and extended message routing between ports. Use Value: Supports dynamic power redistribution (e.g., diverting 45 W from USB-C DP port to charge laptop when monitor enters sleep) using on-chip policy engine and dual CC arbitration. | Use Scenario: Integrated into USB-C monitors with built-in hub functionality to negotiate upstream power while supplying downstream USB peripherals. IC Role / Device Role / Timing Role: Simultaneous UFP (for host charging) and DFP (for downstream USB) controller with independent CC line management per port. Use Value: Eliminates need for separate PD controllers for upstream and downstream paths - enables single-firmware image handling both sink and source roles with shared memory and clock resources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB Type-C port controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STUSB4500QTR | Single-port USB-PD 3.0 controller with 32-bit ARM Cortex-M0, 64 KB flash, no integrated VCONN FETs or dead-battery Rd. | Limited to single-port designs; requires external VCONN driver and discrete Rd/Rp for DRP operation. | Select when cost-sensitive single-port applications (e.g., basic power banks) do not require dual-role flexibility or integrated VCONN. |
| RT1715EZW | Dual-port PD 3.0 controller with 32-bit RISC-V core, 128 KB flash, but lacks integrated SAR ADCs and has only ±4-kV CC-line ESD rating. | Suitable for consumer docks where thermal monitoring or high-reliability ESD is not required; no dead-battery termination support. | Prefer for RISC-V-based firmware ecosystems or where lower ESD robustness is acceptable to reduce BOM cost. |
Compared with STUSB4500QTR and RT1715EZW, CYPD4136-24LQXI uniquely delivers dual-port autonomy with on-die VCONN FETs, ±8-kV CC ESD, and dead-battery Rd - making it the only option among the three qualified for industrial-grade notebook and adapter designs demanding full PD 3.0 feature parity and reliability.
Availability
CYPD4136-24LQXI is available at Aetrix Electronics and suitable for notebook host ports, AC power adapters, and docking stations requiring stable component supply, long-term lifecycle assurance, and full USB-PD 3.0 interoperability certification.
Supply support for CYPD4136-24LQXI 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
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable system-on-chip (PSoC) solutions, USB connectivity, and mixed-signal ICs for embedded applications.
The EZ-PD™ CCG4 product line was engineered specifically for USB Type-C infrastructure - delivering single-chip dual-port PD control with integrated analog front-ends, firmware configurability, and industrial-grade reliability for computing and power delivery systems.
FAQ
Does CYPD4136-24LQXI support USB Power Delivery 3.0 Extended Messages?
Yes. The device implements full USB-PD 3.0 Extended Message support up to 260 bytes, using a chunking mechanism to maintain backward compatibility with USB-PD 2.0 hosts. Firmware updates via EZ-PD Configuration Utility enable runtime configuration of message length, retry count, and timeout parameters without hardware changes.
What is the function of the integrated VCONN FETs in CYPD4136-24LQXI?
The two integrated VCONN FETs provide regulated 5-V power directly to electronically marked cables (EMCA), eliminating the need for external MOSFETs and gate drivers. Each FET is independently controllable per port and includes overcurrent protection and thermal shutdown - critical for reliable cable enumeration in docking stations and monitors.
Can CYPD4136-24LQXI operate in dead-battery mode without external power?
Yes. The device features integrated dead-battery Rd termination on both CC lines, enabling initial connection detection and PD contract initiation even when system VDD is unpowered. This Rd is automatically disabled after MCU boot to prevent conflicts with active role negotiation - a requirement for DRP implementations in laptops and portable docks.
Is external clocking required for CYPD4136-24LQXI operation?
No. The device includes a factory-trimmed internal main oscillator (IMO) operating at 48 MHz, which serves as the primary clock source for the Cortex-M0 core and USB-PD PHYs. An optional external crystal may be used for higher timing accuracy in precision applications, but it is not required for standard USB-PD 3.0 compliance.
CYPD4136-24LQXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- EZ-PD™ CCG4
- Package/Case:
- 24-UFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- USB Type C
- Core Processor:
- ARM® Cortex®-M0
- Program Memory Type:
- FLASH (128kB)
- Controller Series:
- CYUSB
- RAM Size:
- 8K x 8
- Interface:
- I2C, SPI, UART/USART, USB
- Number of I/O:
- 11
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-QFN (4x4)
CYPD4136-24LQXI FAQ
1.How can I place an order for CYPD4136-24LQXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD4136-24LQXI 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 CYPD4136-24LQXI reliable?
The price and inventory of CYPD4136-24LQXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD4136-24LQXI is usually 5 days.
3.What payment methods are accepted for CYPD4136-24LQXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD4136-24LQXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD4136-24LQXI?
CYPD4136-24LQXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD4136-24LQXI 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 CYPD4136-24LQXI?
For technical support, including CYPD4136-24LQXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD4136-24LQXI requirements.
6.How does Aetrix verify that CYPD4136-24LQXI is sourced from the original manufacturer or authorized distributors?
All CYPD4136-24LQXI 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 CYPD4136-24LQXI meets industry standards.
7.What is the process for return or replacement of CYPD4136-24LQXI?
All CYPD4136-24LQXI units undergo pre-shipment inspection (PSI). If there is an issue with CYPD4136-24LQXI, 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 CYPD4136-24LQXI part is unused and in its original packaging.
Return procedure for CYPD4136-24LQXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD4136-24LQXI Tags

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CYPD3175-24LQXQ
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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