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Infineon Technologies CY7C65214D-32LTXI
- Part No.:
- CY7C65214D-32LTXI
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CY7C65214D-32LTXI.pdf
- Description:
- USB FULL-SPEED PERIPHERALS
- Quantity:
- Payment:
- Shipping:
Inventory:4,700
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Product details
Overview
CY7C65214D from Infineon Technologies (formerly Cypress Semiconductor) is a USB 2.0 Full-Speed (12 Mbps) dual-channel SPI bridge controller with integrated 48-MHz oscillator, battery charger detection (BCD v1.2), and 8 GPIOs. It operates from 1.71–5.5 V, supports commercial (0–70°C) and industrial (−40–85°C) temperature ranges, and delivers up to 3 MHz SPI master and 1 MHz SPI slave data rates per channel.
For engineers reviewing the CY7C65214D datasheet, CY7C65214D pinout, CY7C65214D application, or CY7C65214D equivalent, key selection criteria include dual SPI channel configurability, BCD-compliant peripheral detection, vendor-class USB protocol support, and QFN-32 package compatibility with legacy peripheral interface upgrades.
Technical Context
The CY7C65214D integrates a USB Serial Interface Engine (SIE), two independent Serial Communication Blocks (SCB0/SCB1), and dedicated hardware for USB Battery Charging Detection (BCD). Each SCB implements configurable SPI with Motorola/TI/National mode support, 256-byte TX/RX FIFOs, and programmable data width (4–16 bits).
It uses an internal 48-MHz oscillator for USB timing and includes a 32-kHz oscillator for suspend/resume control. Power management supports bus-powered, self-powered, and variable I/O voltage configurations, with USB suspend mode reducing current draw during idle states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); enables direct connection to standard USB hosts without external PHY. |
| SPI Channels | Dual independent channels; allows simultaneous interfacing to two separate SPI peripherals (e.g., sensor + flash). |
| SPI Data Rate | Up to 3 MHz (master), 1 MHz (slave); supports high-throughput sensor readout or memory access. |
| SPI Data Width | 4–16 bits per transfer; accommodates diverse peripheral register widths without software bit-banging. |
| GPIO Count | 8 pins; configurable as inputs/outputs or used for BCD signaling, reset control, or status indication. |
| Operating Voltage | 1.71–5.5 V; permits direct integration with 3.3 V or 5 V logic systems and mixed-voltage designs. |
| ESD Rating | 2.2 kV HBM; provides robustness against handling and board-level electrostatic discharge events. |
Pinout & Package
Package: 32-pin QFN (5 × 5 × 1 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDD | Digital supply | Core logic and USB transceiver power (1.71–5.5 V); decoupling required near pin. |
| VCCD | I/O supply | Configurable I/O voltage reference; sets SPI/GPIO logic levels independently of VDDD. |
| USBDP / USBDM | USB differential pair | Integrated 1.5 kΩ pull-up on USBDP for full-speed enumeration; no external resistors needed. |
| nXRES | Active-low reset | Asynchronous hardware reset input; asserts internal logic reset when pulled low. |
| GND | Ground reference | Common return path for analog/digital domains; connects to thermal pad for thermal dissipation. |
| GPIO[0:7] | General-purpose I/O | Bi-directional, configurable pull-up/down; usable for BCD detection, status LEDs, or handshaking. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent SPI interfaces | Enables concurrent communication with two SPI peripherals without CPU intervention or shared bus arbitration. |
| Battery Charger Detection (BCD) | Hardware-accelerated USB peripheral charging detection per BC v1.2 spec-no firmware overhead. |
| Vendor-class USB protocol | Allows custom host application development using Cypress USB library instead of CDC driver dependency. |
| Integrated 48-MHz oscillator | Eliminates external crystal, reducing BOM count and PCB area while ensuring USB timing compliance. |
| 256-byte TX/RX FIFO per channel | Reduces host polling frequency and interrupt load; supports burst transfers up to 256 bytes per SPI transaction. |
Applications
| Medical Point-of-Care Device | Industrial Sensor Hub |
|---|---|
Use Scenario: Portable blood glucose meter with USB-based firmware update and sensor calibration data upload. IC Role / Device Role / Timing Role: USB-SPI bridge enabling host PC to reprogram embedded flash and read calibrated ADC registers via SPI. Use Value: Eliminates need for separate USB microcontroller; leverages native Windows/Mac/Linux drivers via vendor-class interface. | Use Scenario: Multi-sensor node aggregating temperature, pressure, and humidity readings before USB upload to gateway. IC Role / Device Role / Timing Role: Dual SPI master coordinating concurrent reads from discrete SPI sensors with synchronized timestamping. Use Value: Reduces MCU firmware complexity by offloading SPI timing and buffering; supports 3 MHz sensor streaming without CPU load. |
| POS Terminal Peripheral Adapter | Test Equipment Front-End |
Use Scenario: Retrofitting legacy RS232/parallel receipt printer with USB connectivity in retail POS systems. IC Role / Device Role / Timing Role: USB-to-SPI translator driving printer's internal SPI-controlled thermal head and paper feed motor. Use Value: Enables drop-in USB replacement without redesigning printer controller; supports BCD for powered USB hubs in kiosk deployments. | Use Scenario: Automated test fixture reading calibration EEPROMs and configuring DUT SPI registers over USB. IC Role / Device Role / Timing Role: Dual SPI master performing parallel device configuration and nonvolatile memory readback. Use Value: Cuts test cycle time by eliminating sequential SPI transactions; 256-byte FIFOs reduce host command latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-SPI bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY7C65216D | 12 GPIOs vs. 8; same dual SPI, BCD, and QFN-32 package | Higher GPIO count supports more complex peripheral handshaking or multi-function status signaling | Select when additional GPIOs are required for system-level control beyond basic BCD or reset functions |
| CY7C65223D | 4 GPIOs; adds USB-UART and USB-I2C capability; same dual SPI and QFN-32 | Supports mixed-protocol systems requiring UART debug port alongside SPI sensor interface | Select when design requires fallback UART diagnostics or interoperability with I2C-configurable devices |
Compared with CY7C65216D and CY7C65223D, the CY7C65214D offers optimal GPIO count for BCD-centric SPI bridging with minimal footprint-ideal where cost-sensitive, single-protocol USB-SPI conversion is required without UART/I2C flexibility or extra GPIO overhead.
Availability
CY7C65214D is available at Aetrix Electronics and suitable for medical point-of-care devices, industrial sensor hubs, and POS terminal adapters requiring stable component supply across commercial and industrial temperature grades.
Supply support for CY7C65214D 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 its USB-Serial Bridge Controller portfolio for industrial, medical, and consumer applications.
The CY7C65214D belongs to the USB-Serial Configurable Bridge Controller product line, designed specifically to replace legacy UART peripherals with USB-native SPI interfaces-enabling rapid USB integration without firmware development.
FAQ
Does CY7C65214D require external crystal or oscillator?
No. The device integrates a precision 48-MHz oscillator meeting USB Full-Speed timing requirements, eliminating external crystal components and associated layout constraints. This reduces BOM cost and PCB area while maintaining USB specification compliance without calibration.
Can CY7C65214D operate in both bus-powered and self-powered USB modes?
Yes. It supports bus-powered (VBUS-derived), self-powered (external VDDD), and hybrid configurations with variable I/O voltage (VCCD). Internal regulators manage voltage translation, allowing operation across 1.71–5.5 V while maintaining signal integrity on SPI and GPIO lines.
What USB device class does CY7C65214D use by default?
It defaults to USB Vendor Class, not CDC. This enables custom host applications using Cypress's USB library instead of relying on OS-provided CDC/VCOM drivers-providing greater control over data flow, error handling, and protocol layering without driver signing requirements.
How is battery charger detection implemented on CY7C65214D?
BCD is implemented in hardware per USB Battery Charging Specification Rev 1.2 (Peripheral Detect only). It monitors D+ and D− line states during enumeration to identify SDP, CDP, and DCP chargers-requiring no firmware intervention and delivering deterministic detection within 100 ms of USB attachment.
CY7C65214D-32LTXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 32-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Bridge
- Interface:
- GPIO, SPI
- Standards:
- USB 2.0
- Voltage - Supply:
- 1.71V ~ 1.89V, 3.15V ~ 3.45V, 4.35V ~ 5.25V, 2V ~ 5.5V
- Current - Supply:
- 18mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 32-QFN (5x5)
- Grade:
- -
- Qualification:
- -
CY7C65214D-32LTXI FAQ
1.How can I place an order for CY7C65214D-32LTXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C65214D-32LTXI 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 CY7C65214D-32LTXI reliable?
The price and inventory of CY7C65214D-32LTXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C65214D-32LTXI is usually 5 days.
3.What payment methods are accepted for CY7C65214D-32LTXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C65214D-32LTXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C65214D-32LTXI?
CY7C65214D-32LTXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C65214D-32LTXI 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 CY7C65214D-32LTXI?
For technical support, including CY7C65214D-32LTXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C65214D-32LTXI requirements.
6.How does Aetrix verify that CY7C65214D-32LTXI is sourced from the original manufacturer or authorized distributors?
All CY7C65214D-32LTXI 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 CY7C65214D-32LTXI meets industry standards.
7.What is the process for return or replacement of CY7C65214D-32LTXI?
All CY7C65214D-32LTXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C65214D-32LTXI, 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 CY7C65214D-32LTXI part is unused and in its original packaging.
Return procedure for CY7C65214D-32LTXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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