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Flip Electronics CYPD3123-40LQXI
- Part No.:
- CYPD3123-40LQXI
- Manufacturer:
- Flip Electronics
- Category:
- Application Specific Microcontrollers
- Package:
- -
- Description:
- Microprocessor Circuit, CMOS
- Quantity:
- Payment:
- Shipping:
Inventory:2,945
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Product details
Overview
CYPD3123-40LQXI from Infineon Technologies (formerly Cypress) is a USB Type-C and Power Delivery port controller IC featuring a 48-MHz ARM Cortex-M0 CPU, 128-KB flash, 8-KB SRAM, integrated BMC transceiver, dual VBUS gate drivers, hardware crypto engine, and 20V-tolerant regulator - deployed in notebooks, docking stations, and power adapters for full PD 3.0 compliance and fast role swap.
For engineers reviewing the CYPD3123-40LQXI datasheet, CYPD3123-40LQXI pinout, CYPD3123-40LQXI application, or CYPD3123-40LQXI equivalent, key selection criteria include USB-PD 3.0 BMC PHY integration, dual external VBUS FET control, ±8-kV CC-line ESD protection, dead-battery detection, and configurable RA/RP/RD terminations for UFP/DFP/EMCA roles.
Technical Context
The CYPD3123-40LQXI implements a dedicated USB-PD subsystem with Biphase Mark Code (BMC) transceiver supporting Fast Role Swap (FRS), integrated VCONN FETs, and analog crossbar for DisplayPort AUX/SBU routing. It includes two 8-bit SAR ADCs, programmable OV/UV and overcurrent detection with CSA, and hardware-based OCP/OVP.
Its MCU subsystem delivers deterministic USB-PD protocol timing via four reconfigurable serial communication blocks (SCBs), four TCPWM modules, and a Wakeup Interrupt Controller (WIC) enabling Deep Sleep wake-up from CC line events. The Crypto block supports AES, SHA-1/SHA-2, CRC, and PRNG for secure firmware authentication and field updates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | ARM Cortex-M0 @ 48 MHz - enables real-time PD message handling and firmware-defined policy engine execution |
| Flash / SRAM | 128 KB flash / 8 KB SRAM - sufficient for full USB-PD 3.0 stack, Billboard class support, and custom vendor-defined messages |
| USB-PD PHY | Integrated BMC transceiver with FRS transmit/detect - eliminates need for external PD PHY IC and reduces BOM count |
| VBUS Control | Dual independent gate drivers (VBUS_P & VBUS_C) - supports N- or P-channel external FETs for bidirectional power path management |
| ESD Protection | ±8 kV contact / ±15 kV air-gap on CC1/CC2/SBU1/SBU2/DP/DM/VBUS - meets IEC61000-4-2 Level 4C without external TVS diodes |
| Operating Voltage | 2.7 V to 21.5 V supply range - accommodates wide-input DC-DC converters in adapters and docks without auxiliary LDOs |
| Temperature Range | –40 °C to +105 °C - qualified for industrial and mobile computing environments including laptop internal ports |
Pinout & Package
CYPD3123-40LQXI is housed in a 40-pin QFN package (6 mm × 6 mm, 0.5 mm pitch) with exposed thermal pad, optimized for compact USB-C port designs requiring high thermal dissipation and low EMI.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | USB Type-C Configuration Channel | Dual bidirectional BMC data lines for PD negotiation, cable orientation detection, and VCONN sourcing |
| VBUS_P / VBUS_C | External VBUS Power Switch Control | Gate drive outputs for high-side N-FETs controlling VBUS power path (source/sink) and VCONN supply |
| SBU1 / SBU2 | Sideband Use Interface | Configurable analog I/O routed via internal crossbar to support DisplayPort AUX channel signaling |
| AUX_P / AUX_N | DisplayPort AUX Differential Pair | Direct connection to DP source/sink AUX lines; shared routing with SBU pins through analog crossbar |
| V5V | VCONN Supply Input | 5-V input powering internal VCONN FETs and leakers; supports EMCA cable enumeration and discharge |
| HPD | Hot Plug Detect | Open-drain output for DP sink/source HPD control; integrates HPD processor logic for automatic state management |
Key Features
| Feature | Design Value |
|---|---|
| Hardware Crypto Engine | AES-128/256, SHA-1/SHA-256, CRC-32, PRNG - enables secure boot, authenticated firmware updates, and cryptographic challenge-response for cable authentication |
| Integrated Billboard Device | Full-speed USB 2.0 device controller compliant with USB Billboard Class v1.1 - reports port errors (e.g., "Unrecognized Device") directly to host OS without driver customization |
| Programmable Termination | On-chip RA, RP, RD resistors - eliminates external resistor networks and allows dynamic role switching (UFP/DFP/DRP) via firmware configuration |
| Dead Battery Support | VBUS-powered startup with <30 µA deep-sleep current - enables port controller operation even when system battery is fully depleted |
| Charger Detection | BC1.2 and proprietary charger emulation - identifies legacy USB chargers and negotiates optimal charging current before PD handshake begins |
Applications
| USB-C Docking Station | Universal Laptop Power Adapter |
|---|---|
|
Use Scenario: Multi-port dock connecting USB-C laptop to HDMI, USB-A, Ethernet, and PD charging. IC Role / Device Role / Timing Role: Central PD policy manager and CC line arbiter coordinating power role swaps, data alt-mode entry, and Billboard error reporting. Use Value: Enables single-cable docking with simultaneous 100-W power delivery, DisplayPort Alt Mode, and USB 3.1 Gen 1 data - all managed within one IC without external PD controllers. |
Use Scenario: Compact 65-W GaN adapter supporting variable output (5–20 V) and fast charging for multiple devices. IC Role / Device Role / Timing Role: USB-C port controller negotiating voltage/current contracts, monitoring VBUS OVP/OCP, and managing VCONN for active cables. Use Value: Reduces adapter BOM by integrating BMC PHY, gate drivers, and crypto authentication - eliminating discrete PD PHY and separate MCU. |
| Monitors with USB-C Uplink | Notebook Internal USB-C Port |
|
Use Scenario: 4K monitor accepting video + power via single USB-C uplink while providing downstream USB-A/HDMI ports. IC Role / Device Role / Timing Role: Dual-role (DFP/UFP) controller managing upstream PD contract acceptance and downstream port power distribution. Use Value: Supports simultaneous 90-W power sink and 10-Gbps DisplayPort Alt Mode using integrated analog crossbar and BMC transceiver - no latency-critical external signal routing. |
Use Scenario: Embedded USB-C port in ultrabook chassis requiring robust ESD, dead-battery operation, and firmware-upgradable PD policy. IC Role / Device Role / Timing Role: System-level PD controller interfacing with EC/firmware to enforce OEM-specific power policies and security rules. Use Value: Meets industrial temp range (–40°C to +105°C) and ±8-kV CC-line ESD without external protection - critical for thin-bezel, thermally constrained laptop designs. |
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 |
|---|---|---|---|
| STUSB4500 | Standalone USB-PD 3.0 PHY + MCU; no integrated ARM core or flash - requires external host MCU for policy engine | Lacks embedded firmware stack and crypto engine; suitable only where host processor handles PD messaging | Select when existing host MCU can offload PD protocol processing and security is handled externally |
| TUSB8041 | USB 3.1 Gen 1 hub controller with basic Type-C detection - no PD 3.0 BMC, no VBUS control, no crypto | Supports only USB data switching and orientation detection; no power contract negotiation or VCONN management | Select only for non-PD USB-C data-only applications such as passive hubs or dongles without power delivery |
Compared with STUSB4500 and TUSB8041, CYPD3123-40LQXI provides full self-contained PD 3.0 functionality - including BMC transceiver, gate drivers, crypto, and firmware-executable policy engine - reducing system-level complexity and enabling secure, autonomous port control without host MCU dependency.
Availability
CYPD3123-40LQXI is available at Aetrix Electronics and suitable for notebook internal ports, USB-C docking stations, universal power adapters, and DisplayPort-enabled monitors requiring stable component supply, long lifecycle support, and automotive-grade reliability.
Supply support for CYPD3123-40LQXI 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 acquired Cypress Semiconductor in 2020 and maintains full product continuity, technical documentation, and long-term supply commitment for the EZ-PD™ portfolio.
CYPD3123-40LQXI belongs to the EZ-PD™ CCG3 family - designed specifically for embedded USB Type-C port control in space-constrained, thermally demanding systems requiring full PD 3.0 compliance, secure firmware updates, and minimal external components.
FAQ
Does CYPD3123-40LQXI support USB Power Delivery 3.0 Extended Messages?
Yes. The integrated USB-PD subsystem supports all PD 3.0 features including Extended Messages (e.g., Firmware Update, Battery Status, Manufacturer Info), enabled by the 128-KB flash and hardware BMC transceiver. Firmware must be configured to enable specific extended message types per application requirements.
Can CYPD3123-40LQXI drive both N-channel and P-channel VBUS FETs?
Yes. Its dual gate drivers (VBUS_P and VBUS_C) are configurable in software for either N-FET or P-FET operation. Default configuration supports N-FETs; P-FET mode requires register-level configuration of driver polarity and timing parameters per the CCG3 Hardware Design Guide.
Is external crystal required for USB-PD BMC timing accuracy?
No. The device integrates a factory-trimmed IMO (Internal Main Oscillator) with ±1% accuracy across temperature and voltage - sufficient for USB-PD BMC timing compliance. An external crystal is optional only if tighter clock tolerance (<±0.25%) is needed for specific USB audio or isochronous applications.
What debug interface does CYPD3123-40LQXI use for firmware development?
CYPD3123-40LQXI uses a 2-pin Serial Wire Debug (SWD) interface compatible with standard ARM Cortex-M0 debug tools (e.g., Segger J-Link, Cypress KitProg). It supports four hardware breakpoints and two watchpoints, enabling full firmware inspection, flash programming, and real-time PD message tracing during development.
CYPD3123-40LQXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Flip Electronics
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- -
- Applications:
- -
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- -
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
CYPD3123-40LQXI FAQ
1.How can I place an order for CYPD3123-40LQXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CYPD3123-40LQXI 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 CYPD3123-40LQXI reliable?
The price and inventory of CYPD3123-40LQXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD3123-40LQXI is usually 5 days.
3.What payment methods are accepted for CYPD3123-40LQXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD3123-40LQXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYPD3123-40LQXI?
CYPD3123-40LQXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYPD3123-40LQXI 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 CYPD3123-40LQXI?
For technical support, including CYPD3123-40LQXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD3123-40LQXI requirements.
6.How does Aetrix verify that CYPD3123-40LQXI is sourced from the original manufacturer or authorized distributors?
All CYPD3123-40LQXI 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 CYPD3123-40LQXI meets industry standards.
7.What is the process for return or replacement of CYPD3123-40LQXI?
All CYPD3123-40LQXI units undergo pre-shipment inspection (PSI). If there is an issue with CYPD3123-40LQXI, 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 CYPD3123-40LQXI part is unused and in its original packaging.
Return procedure for CYPD3123-40LQXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYPD3123-40LQXI Tags
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SLB9670VQ20FW785XTMA1
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AT97SC3204-U2A1A-20
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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SLB9672AU20FW1613XTMA1
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