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Infineon Technologies CY7C69356-48LTXC
- Part No.:
- CY7C69356-48LTXC
- Manufacturer:
- Infineon Technologies
- Category:
- Controllers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
CY7C69356-48LTXC.pdf
- Description:
- IC USB TO UART BRIDGE 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,895
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Product details
Overview
CY7C69356-48LTXC from Infineon (acquired Cypress) is a USB Full-Speed peripheral controller with M8C 8-bit CPU core, 32 KB Flash memory, 8 USB endpoints, and 36 GPIOs. It supports bulk, interrupt, and isochronous transfers and integrates SPI, I²C, ADC, voltage regulator, and clock I/O for embedded automotive-qualified USB device applications.
For engineers reviewing the CY7C69356-48LTXC datasheet, CY7C69356-48LTXC pinout, CY7C69356-48LTXC application, or CY7C69356-48LTXC equivalent, key selection criteria include USB 2.0 Full-Speed compliance, integrated analog peripherals (10-bit ADC), supply voltage range (3.0–5.5 V), operating temperature (0–70 °C), and PSoC Designer toolchain support.
Technical Context
The CY7C69356-48LTXC implements a dedicated USB 2.0 Full-Speed (12 Mbps) device controller with hardware endpoint management for up to eight bidirectional endpoints. Its M8C CPU executes firmware from on-chip 32 KB Flash and manages USB protocol stack, descriptor handling, and data buffering without host intervention.
Integrated mixed-signal resources include a 10-bit SAR ADC with up to 16 channels, a programmable voltage regulator (VREG), dual clock sources (internal oscillator + external CLKIN/CLKOUT), and configurable GPIOs supporting USB suspend/resume signaling and wake-up events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed | Full-Speed (12 Mbps); enables HID, mass storage, and audio class devices compliant with USB 2.0 specification. |
| Flash Memory | 32 KB; stores firmware including USB descriptors, class drivers, and application logic with in-system reprogrammability. |
| ADC Resolution | 10-bit SAR; supports sensor interface and system monitoring with up to 16 input channels and configurable sampling rate. |
| Supply Voltage | 3.0–5.5 V; allows direct connection to 3.3 V or 5 V system rails without external level-shifting circuitry. |
| Operating Temp | 0–70 °C; certified for automotive interior applications and industrial control environments per AEC-Q100 qualification. |
| I/O Count | 36 GPIOs; configurable as USB D+/D−, SPI/I²C buses, analog inputs, or digital interrupts with pull-up/down control. |
Pinout & Package
Package: 48-pin QFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power Supply / Ground | Dual power domains: VDD supplies core and I/O; VSS provides low-noise reference for ADC and USB transceiver. |
| D+, D− | USB Differential Pair | Full-Speed USB physical layer interface with integrated termination and ESD protection (±2 kV HBM). |
| P0[0]–P0[7] | GPIO Bank 0 | 8-bit bidirectional port with interrupt-on-change, used for button sensing, LED control, or SPI slave select. |
| ADCIN[0]–ADCIN[15] | Analog Input Channels | 16 multiplexed inputs routed to 10-bit SAR ADC; shared with GPIO pins P0–P3 under configuration control. |
| CLKIN, CLKOUT | External Clock Interface | Supports crystal (4–24 MHz) or external clock source; CLKOUT drives downstream peripherals or timing sync. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB Transceiver | On-die full-speed PHY eliminates need for external USB interface IC and reduces BOM count by one component. |
| Programmable VREG | Internal 3.3 V regulator powers USB PHY and I/Os; enables single-supply operation from 5 V rail without external LDO. |
| PSoC Designer IDE Support | Graphical design environment with pre-verified USB class components (HID, CDC, MSC) cuts firmware development time by ~40%. |
| AEC-Q100 Qualified | Automotive-grade reliability validated across temperature, humidity, and vibration stress tests per Grade 3 requirements. |
Applications
| Automotive Diagnostic Tool | Industrial USB Data Logger |
|---|---|
Use Scenario: Handheld OBD-II scanner connecting to vehicle ECU via USB cable for real-time parameter readout and fault code retrieval. IC Role / Device Role / Timing Role: USB peripheral controller managing CDC ACM class communication, ADC reading battery voltage and ambient temperature sensors. Use Value: Integrated VREG and 3.0–5.5 V operation allow direct connection to vehicle 12 V system (via DC-DC converter), reducing external power components. | Use Scenario: Ruggedized field logger capturing sensor data (vibration, temperature, pressure) and storing it locally before USB upload to PC. IC Role / Device Role / Timing Role: USB device with bulk transfer mode for high-throughput data dump; ADC samples analog sensors at 100 ksps with DMA-triggered USB uploads. Use Value: 32 KB Flash stores firmware plus 2 KB of descriptor/config data; 36 GPIOs support SD card interface and sensor enable lines. |
| Medical Patient Monitor Interface | USB HID Keypad Controller |
Use Scenario: Bedside monitor with detachable USB keyboard/mouse and plug-and-play sensor modules connected via mini-B USB. IC Role / Device Role / Timing Role: USB HID class device handling keyboard scan matrix and analog front-end for pulse oximeter signal conditioning. Use Value: Isochronous transfer support ensures jitter-free streaming of real-time physiological waveforms to host PC. | Use Scenario: Industrial control panel keypad with backlighting, tactile feedback, and USB HID report generation for PLC HMI integration. IC Role / Device Role / Timing Role: USB HID keyboard device with interrupt endpoint polling at 10 ms intervals; GPIOs drive LED indicators and scan matrix rows/columns. Use Value: On-chip 10-bit ADC monitors keypad current draw for tamper detection; integrated VREG powers backlight LEDs directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB peripheral controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CP2102N-A02-GM | Single-purpose USB-to-UART bridge; no CPU, Flash, ADC, or GPIO; fixed CDC class only. | Limited to serial tunneling; cannot implement custom HID or isochronous audio without external MCU. | Choose when only UART bridging is needed and firmware flexibility is unnecessary. |
| STM32F072CBT6 | Cortex-M0 MCU with USB FS device stack, 128 KB Flash, but requires external USB PHY and external 3.3 V LDO. | Higher code density and peripheral count, but increases BOM cost and PCB area vs. integrated solution. | Choose when advanced processing (e.g., sensor fusion) or larger memory is required beyond CY7C69356 capabilities. |
Compared with CP2102N-A02-GM and STM32F072CBT6, the CY7C69356-48LTXC delivers lowest-system-component-count USB peripheral implementation with integrated PHY, regulator, and analog peripherals-ideal for cost-sensitive, space-constrained automotive and industrial devices requiring firmware-defined class behavior.
Availability
CY7C69356-48LTXC is available at Aetrix Electronics and suitable for automotive diagnostic tools, industrial data loggers, medical USB interfaces, and HID keypad controllers requiring stable component supply and long-term lifecycle support.
Supply support for CY7C69356-48LTXC 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 the PSoC® family as a core programmable analog/digital mixed-signal platform for embedded control.
The CY7C69356 belongs to the PSoC 1 family, designed specifically for low-cost, highly integrated USB peripheral applications where minimal external components and rapid firmware development are critical.
FAQ
Is CY7C69356-48LTXC compatible with USB 2.0 High-Speed hosts?
No. The CY7C69356-48LTXC is a USB 2.0 Full-Speed (12 Mbps) device only and does not support High-Speed (480 Mbps) negotiation or signaling. It operates exclusively in Full-Speed mode and connects reliably to all USB 2.0 and USB 3.x hosts via backward-compatible ports.
Does CY7C69356-48LTXC require an external crystal?
No. It includes an internal precision oscillator sufficient for USB Full-Speed timing, but supports optional external 4–24 MHz crystal or clock source via CLKIN for improved accuracy or synchronization with other system clocks.
Can the onboard ADC be used simultaneously with USB data transfers?
Yes. The 10-bit SAR ADC operates independently of USB transactions. Firmware can trigger conversions via timer or GPIO event and use DMA or CPU to move results to USB endpoint buffers without interrupting isochronous or bulk transfers.
What development tools are officially supported for CY7C69356-48LTXC?
PSoC Designer 5.4 is the official IDE, providing schematic-based design entry, USB class component libraries (HID, CDC, MSC), automatic descriptor generation, and on-chip debugging via MiniProg1/MiniProg3 programmers. No third-party toolchain is officially qualified.
CY7C69356-48LTXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Controller
- Interface:
- -
- Standards:
- -
- Voltage - Supply:
- 3V ~ 5.5V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-QFN (7x7)
- Grade:
- -
- Qualification:
- -
CY7C69356-48LTXC FAQ
1.How can I place an order for CY7C69356-48LTXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C69356-48LTXC 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 CY7C69356-48LTXC reliable?
The price and inventory of CY7C69356-48LTXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C69356-48LTXC is usually 5 days.
3.What payment methods are accepted for CY7C69356-48LTXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C69356-48LTXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C69356-48LTXC?
CY7C69356-48LTXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C69356-48LTXC 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 CY7C69356-48LTXC?
For technical support, including CY7C69356-48LTXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C69356-48LTXC requirements.
6.How does Aetrix verify that CY7C69356-48LTXC is sourced from the original manufacturer or authorized distributors?
All CY7C69356-48LTXC 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 CY7C69356-48LTXC meets industry standards.
7.What is the process for return or replacement of CY7C69356-48LTXC?
All CY7C69356-48LTXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C69356-48LTXC, 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 CY7C69356-48LTXC part is unused and in its original packaging.
Return procedure for CY7C69356-48LTXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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