CY7C64225-28PVXC - USB-UART Bridge Controller | Infineon
MPN: CY7C64225-28PVXC ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.6 | $3.60 |
| 10 | $3.24 | $32.40 |
| 100 | $2.95 | $295.00 |
| 500 | $2.72 | $1,360.00 |
| 1,000 | $2.55 | $2,550.00 |
CY7C64225-28PVXC Overview
A USB-to-UART bridge controller is an interface IC that converts data between a USB host (typically a PC) and a device with a UART serial port, enabling legacy serial designs to connect to modern USB hosts without firmware changes on the serial side. Within the system hierarchy, it belongs to interface bridges under USB interface ICs, a category essential for industrial, instrumentation, and point-of-sale equipment.
Key features include full-speed USB 2.0 operation compliant with the USB specification, USB-IF certification with TID 40001425, three USB endpoints (1 Interrupt IN, 1 Bulk OUT, 1 Bulk IN), an integrated USB transceiver with a 1.5 kOhm pull-up resistor on the D+ line, and support for both bus-powered and self-powered configurations. The integrated flash memory allows vendor-specific descriptors and configuration to be customized.
Architecturally, the device contains an on-chip USB engine, a 64-byte FIFO buffer for UART data flow smoothing, and a UART interface supporting RS-485 signaling and hardware flow control (RTS/CTS), which reduces CPU overhead and prevents data loss at high baud rates. The 3.3 V internal operation with wide 3.0 V to 5.25 V supply tolerance simplifies integration in both 3.3 V and 5 V systems.
Typical applications include legacy RS-232/RS-485 equipment migration to USB, point-of-sale terminals, industrial instrumentation panels, and set-top box debug ports, where a simple driver-based USB serial link is required.
Design consideration: for bus-powered designs, ensure the suspend current budget accounts for the bridge controller's suspend mode, and keep the 1.5 kOhm D+ pull-up resistor unconnected externally to avoid double-pull-up errors.
This page synthesizes distributor pricing (Mouser, Octopart, Newark, DigiKey), stock status, packaging details, and drop-in variant analysis not consolidated in the manufacturer datasheet.
Drop-in alternatives for CY7C64225-28PVXC — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
CY7C64225-28PVXCT
✅ Drop-In📋 Reference alternative (not in catalog)
CY7C64225-28PVXC Specifications
| Function | USB-UART Bridge Controller (single channel) |
| USB Standard | USB 2.0 Full-Speed |
| USB-IF Certification | TID 40001425 |
| Supply Voltage Range | 3 V to 5.25 V |
| Internal Core Voltage | 3.3 V |
| USB Endpoints | 3 (1 Interrupt IN, 1 Bulk OUT, 1 Bulk IN) |
| UART FIFO | 64 Byte |
| Flow Control | Hardware flow control (RTS/CTS) |
| RS-485 Support | Yes |
| Integrated Pull-up | 1.5 kOhm on D+ line |
| Integrated USB Transceiver | Yes |
| Power Configurations | Bus-powered and self-powered |
| Program Memory | Flash |
| Package | 28-SSOP |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Suspend Mode | Yes |
CY7C64225-28PVXC 28-ssop Pin Configuration Guide
Pin configuration for CY7C64225-28PVXC (28-ssop package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for CY7C64225-28PVXC.
Refer to the datasheet for full pin configuration.
Typical Applications
CY7C64225-28PVXC is suitable for 6 applications: Legacy RS-232/RS-485 Equipment Migration to USB, Point-of-Sale Terminals and Receipt Printers, Industrial Instrumentation and Data Loggers, Set-Top Box and Consumer Device Debug Ports, Medical Device Configuration and Service Interfaces, Gaming and Amusement Machine Connectivity.
Legacy RS-232/RS-485 Equipment Migration to USB
The CY7C64225-28PVXC is purpose-built to give legacy serial equipment a USB 2.0 full-speed port without redesigning the serial side. Its USB-IF certification (TID 40001425) guarantees interoperability with PC hosts, while the 64-byte FIFO smooths bursts between the USB bulk pipe and the UART at high baud rates. RS-485 support and RTS/CTS hardware flow control let the bridge drive an external RS-485 transceiver with correct direction-enable timing, critical for half-duplex industrial buses. Operating from 3 V to 5.25 V, it drops into both older 5 V boards and newer 3.3 V designs, and the integrated transceiver with 1.5 kOhm D+ pull-up minimizes external parts.
Recommended
Point-of-Sale Terminals and Receipt Printers
POS peripherals such as receipt printers, barcode scanners, and cash-drawer controllers historically used UART serial links; the CY7C64225-28PVXC provides the certified USB bridge needed to connect them to modern POS hosts. The three-endpoint structure (1 Interrupt IN for status events, 1 Bulk IN/OUT for data) maps cleanly onto printer data streams plus status signaling. Hardware flow control (RTS/CTS) prevents buffer overflow during high-speed receipt printing, and flash memory allows OEMs to program vendor-specific VID/PID descriptors so the host driver binds uniquely to their product. Tray packing suits manual or semi-automated assembly lines typical of POS hardware manufacturing.
Recommended
Industrial Instrumentation and Data Loggers
In industrial data loggers and panel instruments, the CY7C64225-28PVXC provides a maintenance and data-extraction port that any PC can use without special drivers for the serial side. Bus-powered operation lets the logger be powered entirely through the USB port during commissioning, and self-powered mode suits permanently installed units. The wide 3 V to 5.25 V supply range tolerates poorly regulated industrial auxiliary rails, and suspend mode reduces current draw when the host is disconnected. The 64-byte FIFO decouples burst sampling from USB scheduling latency, avoiding lost samples at sustained baud rates.
Recommended
Set-Top Box and Consumer Device Debug Ports
Consumer electronics developers frequently expose a USB-to-UART debug console; the CY7C64225-28PVXC is an economical bridge for this role. Its USB 2.0 full-speed bandwidth comfortably covers typical console baud rates, and the 1.5 kOhm D+ pull-up plus integrated transceiver allow a minimal two-component USB front end. Because the part is USB-IF certified (TID 40001425), development boards built around it pass host interoperability testing without requalification of the bridge itself. The 28-SSOP hand-solderable package with 0.65 mm pitch suits prototype rework on development boards where debug ports are frequently modified.
Recommended
Medical Device Configuration and Service Interfaces
Medical equipment such as infusion pumps and patient monitors requires a service interface for firmware updates and calibration; the CY7C64225-28PVXC supplies a USB-IF certified, full-speed USB-to-UART link for this purpose. The flash program memory allows the OEM to program medical-device-specific descriptors and serial numbers per unit, supporting traceability requirements. Hardware flow control guarantees reliable transfer of large firmware images during field service, and the 3.3 V core matches modern medical MCU I/O rails directly, avoiding level-shifting. Tray packing supports the low-volume, high-mix assembly typical of medical device production.
Recommended
Gaming and Amusement Machine Connectivity
Arcade and amusement machines use UART serial protocols between game controllers, bill validators, and main boards; the CY7C64225-28PVXC bridges these to USB-based host systems. The 64-byte FIFO and hardware flow control maintain frame integrity at the sustained data rates of peripheral polling loops, while RS-485 support accommodates the multi-drop wiring used across large cabinets. Its USB-IF certification (TID 40001425) simplifies regulatory submission of machines shipped with USB ports. Operating from a 5 V rail common in amusement cabinet power supplies, the part integrates without an extra regulator, reducing cabinet BOM cost.
Recommended
Recommended Products Summary
Engineering reference data for CY7C64225-28PVXC — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | CY7C64225-28PVXCT |
|---|---|---|
| Package | 28-SSOP | 28-SSOP - same |
| Brand | Infineon Technologies | Infineon Technologies |
| Function | USB 2.0 full-speed to UART bridge, RS-485 support | Identical function |
| Supply Voltage | 3 V to 5.25 V | 3 V to 5.25 V |
| USB Endpoints | 3 (1 Int IN, 1 Bulk IN, 1 Bulk OUT) | 3 (identical) |
| UART FIFO | 64 Byte | 64 Byte |
| USB-IF Certification | TID 40001425 | TID 40001425 |
| Packaging | Tray | Tape & Reel |
Key Differentiators
- USB-IF certified bridge silicon (vs CP2102)
- Native RS-485 support with hardware flow control (vs FT232RL)
- Tray packing for low-volume assembly (vs CY7C64225-28PVXCT)
Design Notes
In bus-powered configurations, the CY7C64225-28PVXC must limit its VBUS draw to the 100 mA low-power budget until USB enumeration completes; budget downstream loads accordingly and switch them on only after configuration. In self-powered designs, isolate VBUS sensing so the controller does not back-power the host through the pull-up. The 3 V to 5.25 V supply range accepts a 5 V rail with a simple 3.3 V regulator or a direct 3.3 V rail; decouple VCC with 0.1 uF ceramic close to the pin plus 4.7-10 uF bulk.
The 28-SSOP has 0.65 mm pitch leads - verify land pattern against the manufacturer datasheet footprint. Keep the D+ and D- USB traces as a matched-length pair (under 5 mm mismatch), routed over a continuous ground plane with 90-ohm differential impedance where trace length exceeds about 50 mm. Do not add an external 1.5 kOhm pull-up on D+; it is integrated, and doubling it corrupts full-speed signaling. Place the RS-485/RS-232 transceiver close to the UART pins with series termination on long cable runs.
Ordering-code suffixes matter: the C suffix (this part) is tray packing for manual assembly; the T suffix (CY7C64225-28PVXCT) is tape-and-reel - electrically identical but verify your line process before ordering. In RS-485 half-duplex designs, enable the transmitter-direction control from the hardware flow-control output rather than firmware toggles to avoid last-byte truncation at high baud rates. Finally, the datasheet was migrated from Cypress to Infineon hosting - always download from infineon.com to get the current revision.
Compliance Information
RoHS/REACH/lead-free status not stated in the provided verified data. The manufacturer product page (infineon.com) should be consulted for the current compliance declaration. USB-IF certification TID 40001425 is confirmed from datasheet data.
