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Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies CYPD2120-20FNXIT

Name: CYPD2120-20FNXIT
Brand: Infineon Technologies
SKU: CYPD2120-20FNXIT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CYPD2120-20FNXIT

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: -

Datasheet:: CYPD2120-20FNXIT.pdf

Description:: IC MCU 32BIT 32KB FLASH 35WLCSP

Quantity:: RFQ Add To RFQ list

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Inventory:1,605

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Product details

Overview

CYPD2120-20FNXIT from Infineon is a USB Type-C port controller IC implementing full USB Power Delivery 3.0 protocol stack, featuring a 48-MHz Arm® Cortex®-M0 CPU, 32-KB flash, integrated Type-C transceiver with RP/RD/RA termination resistors, and dual VCONN rails - deployed in USB-C EMCA cables and upstream-facing notebook ports.

For engineers reviewing the CYPD2120-20FNXIT datasheet, CYPD2120-20FNXIT pinout, CYPD2120-20FNXIT application, or CYPD2120-20FNXIT equivalent, key selection criteria include CC line BMC decoding latency, VCONN current capability (±150 mA), deep-sleep current (2.5 µA), industrial temperature range (–40°C to +105°C), and QFN-24 package compatibility with USB-C port layout constraints.

Technical Context

The CYPD2120-20FNXIT implements a dedicated USB PD subsystem with baseband PHY supporting BMC encoding/decoding and 4b/5b conversion, coupled with hardware-accelerated PD protocol state machines for role detection (DFP/UFP/DRP), VCONN switching, and cable discovery. Its CC I/O subsystem includes programmable current sources and ESD-hardened inputs rated for ±8-kV contact discharge.

It integrates two reconfigurable Serial Communication Blocks (SCB) supporting runtime-switchable I²C/SPI/UART modes, an 8-bit SAR ADC for voltage monitoring, six TCPWM channels for GPIO timing control, and a power management unit enabling three low-power states: Reset (1.0 µA), Deep Sleep (2.5 µA), and Sleep (2.0 mA).

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	Arm® Cortex®-M0, 48 MHz - enables real-time PD policy engine execution with <100 µs CC line response latency
Flash Memory	32 KB - stores full USB PD 3.0 firmware plus vendor-defined descriptors and custom policy rules
SRAM	4 KB - buffers BMC-decoded PD messages and maintains dynamic port state during negotiation
Operating Voltage	2.7 V to 5.5 V - supports direct connection to VBUS or auxiliary 3.3-V rail without LDO
VCONN Supply	Dual independent rails, ±150 mA each - powers active cable electronics or EMCA accessories without external boosters
ESD Rating	±8 kV contact / ±15 kV air gap (IEC61000-4-2 Level 4C) - protects CC pins against field-induced transients in portable systems
Temperature Range	–40°C to +105°C - qualified for notebook docking stations and industrial USB-C hubs

Pinout & Package

Package: 4.0 mm × 4.0 mm, 0.55 mm pitch, 24-pin QFN (wettable flank). Exposed thermal pad enhances thermal dissipation in high-density USB-C port layouts.

Pin/Terminal	Circuit Role	Design Meaning
CC1, CC2	USB Type-C Configuration Channel I/O	Bidirectional BMC-capable pins with integrated termination resistors (RP/RD/RA) and ±8-kV ESD protection
VCONN1, VCONN2	Active Cable Power Outputs	Independent 5-V regulated outputs, each sourcing up to 150 mA for EMCA electronics or inline repeaters
VDDIO	I/O Supply Voltage	Configurable 1.71–5.5 V rail - enables mixed-voltage signaling with legacy 1.8-V or 3.3-V system logic
SWDIO, SWCLK	Serial Wire Debug Interface	2-pin JTAG-compatible debug path supporting in-system firmware update and real-time trace without halting PD operation
GPIO[0:11]	Programmable Digital I/O	12 general-purpose pins with PWM, interrupt, and analog input (via SAR ADC) capability for status LEDs or board-level control

Key Features

Feature	Design Value
Integrated Type-C Transceiver	On-die baseband PHY with RP/RD/RA resistors eliminates 6 external components and reduces PCB area by >30% vs discrete solutions
Runtime-Reconfigurable SCB	Two serial blocks dynamically switch between I²C/SPI/UART - simplifies host MCU interface without firmware recompile
Dual Independent VCONN	Separate regulation and isolation between VCONN1/VCONN2 prevents fault propagation in multi-cable daisy chains
Low-Power Deep Sleep Mode	2.5 µA quiescent current with CC wake-up capability - extends battery life in portable docks and adapters
Hardware PD State Machine	Dedicated USB-PD subsystem offloads policy engine from Cortex-M0 - ensures deterministic <5-ms PD message turnaround time

Applications

USB-C EMCA Cables

Notebook Upstream Ports

Use Scenario: Electronically marked active cables for Thunderbolt 3/4 or DisplayPort Alt Mode transmission.

IC Role / Device Role / Timing Role: USB PD controller managing cable identity, VCONN power delivery, and role swap negotiation.

Use Value: Enables plug-and-play cable authentication and 5-V/150-mA VCONN support per channel without external regulators.

Use Scenario: USB-C port on ultrabooks requiring DRP capability, sink/source role negotiation, and display/video handoff.

IC Role / Device Role / Timing Role: Port controller handling CC line BMC decoding, PD contract establishment, and VBUS discharge sequencing.

Use Value: Achieves <100-ms role swap latency and supports USB PD 3.0 Fast Role Swap for seamless host-peripheral transitions.

USB-C Docking Stations

Powered USB-C Accessories

Use Scenario: Multi-port desktop docks with simultaneous charging, video output, and data hub functionality.

IC Role / Device Role / Timing Role: Central PD manager coordinating power allocation across downstream ports and negotiating with upstream host.

Use Value: Supports Programmable Power Supply (PPS) negotiation and dynamic power budgeting across 4+ USB-C ports.

Use Scenario: Bus-powered monitors, external SSD enclosures, or audio interfaces requiring VCONN and PD-aware enumeration.

IC Role / Device Role / Timing Role: UFP-side PD controller detecting source capabilities, configuring VCONN, and reporting device identity via SOP' messages.

Use Value: Eliminates need for separate PD ID chips and enables native OS-level power reporting via USB IF descriptors.

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
CYPD3171-24LQXIT	USB PD 3.0 + PPS support; 64-KB flash; integrated buck converter for VCONN	Targeted at higher-power adapters and chargers requiring programmable voltage regulation	Select when VCONN regulation must be self-contained and PPS negotiation is mandatory
STUSB4500QTR	USB PD 2.0 only; no embedded MCU; fixed-function state machine; 20-pin TSSOP	Suitable for cost-sensitive, single-role (DFP-only) applications like wall adapters	Select when firmware customization is unnecessary and BOM simplicity outweighs protocol flexibility

Compared with CYPD3171-24LQXIT and STUSB4500QTR, the CYPD2120-20FNXIT balances protocol agility (full PD 3.0 stack), firmware programmability, and compact QFN-24 footprint - making it optimal for space-constrained, multi-role USB-C endpoints where field-upgradable behavior is required.

Availability

CYPD2120-20FNXIT is available at Aetrix Electronics and suitable for USB-C EMCA cables, notebook upstream ports, and powered docking stations requiring stable component supply, long-term lifecycle assurance, and full USB PD 3.0 compliance.

Supply support for CYPD2120-20FNXIT 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 leader specializing in power management, automotive MCUs, and connectivity solutions, with over 30 years of industrial-grade reliability validation.

The EZ-PD™ CCG2 product line delivers highly integrated, firmware-programmable USB Type-C controllers optimized for active cables, powered accessories, and portable computing ports - emphasizing low-power operation, rapid PD negotiation, and robust ESD immunity.

FAQ

What firmware development tools are supported for CYPD2120-20FNXIT?

Infineon provides the EZ-PD™ Configuration Utility (Windows GUI) for non-invasive configuration and firmware updates over I²C or CC lines. Full SDK support includes ModusToolbox™ with example projects for EMCA cable, DFP, and UFP roles. Debugging uses standard SWD with OpenOCD or Segger J-Link.

Does CYPD2120-20FNXIT support USB PD 3.0 Fast Role Swap?

Yes - the hardware-accelerated PD subsystem and dual VCONN rails enable sub-100 ms Fast Role Swap (FRS) in both directions. FRS messaging is handled autonomously by the dedicated PD state machine without CPU intervention, meeting USB-IF certification requirements for responsive role transitions.

Can the GPIO pins be used for analog sensing?

Yes - 12 GPIO pins are multiplexed with an 8-bit SAR ADC, supporting up to 1 MSPS sampling. Dedicated analog input channels allow real-time monitoring of VBUS, VCONN, or external thermistors without external ADCs, with configurable reference voltage (internal 1.2 V or external).

Is external crystal required for USB PD timing compliance?

No - the device integrates a factory-trimmed internal main oscillator (IMO) operating at 48 MHz with ±2% accuracy over temperature and voltage, fully satisfying USB PD BMC timing jitter requirements. No external clock components are needed for certified operation.

CYPD2120-20FNXIT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: *

Package/Case:: -

Packaging:: Tape & Reel (TR)

Product Status:: Discontinued at Digi-Key

Programmable:: Not Verified

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:: -

CYPD2120-20FNXIT FAQ

1.How can I place an order for CYPD2120-20FNXIT through Aetrix?

Please submit a Request for Quotation (RFQ) for CYPD2120-20FNXIT 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 CYPD2120-20FNXIT reliable?

The price and inventory of CYPD2120-20FNXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYPD2120-20FNXIT is usually 5 days.

3.What payment methods are accepted for CYPD2120-20FNXIT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYPD2120-20FNXIT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CYPD2120-20FNXIT?

CYPD2120-20FNXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CYPD2120-20FNXIT 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 CYPD2120-20FNXIT?

For technical support, including CYPD2120-20FNXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYPD2120-20FNXIT requirements.

6.How does Aetrix verify that CYPD2120-20FNXIT is sourced from the original manufacturer or authorized distributors?

All CYPD2120-20FNXIT 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 CYPD2120-20FNXIT meets industry standards.

7.What is the process for return or replacement of CYPD2120-20FNXIT?

All CYPD2120-20FNXIT units undergo pre-shipment inspection (PSI). If there is an issue with CYPD2120-20FNXIT, 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 CYPD2120-20FNXIT part is unused and in its original packaging.

Return procedure for CYPD2120-20FNXIT:

1.Submit a request within 90 days.

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

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