CY7C65217-24LTXIT - USB 2.0 Serial Bridge | Infineon
Teilenummer: CY7C65217-24LTXIT ✓ AktivCY7C65217-24LTXIT Übersicht
A USB-to-serial bridge is an interface controller that translates USB traffic into a conventional peripheral protocol. It sits between a USB host and embedded UART or I2C devices, reducing the need for custom USB firmware in the target system. The CY7C65217 belongs to the USB-to-UART, USB-to-I2C, and USB-to-SPI bridge-controller category, which falls within interface ICs, interface adapters, and USB interface semiconductors.
The device supports dual-channel UART and I2C interfaces with UART data rates up to 115200 bps. Each UART channel includes a 190-byte transmit buffer and a 190-byte receive buffer. The serial interface supports data and stop-bit configurations described by the manufacturer datasheet, along with parity, overrun, and framing-error reporting. These functions make the controller useful for bridging configuration ports, data acquisition modules, and industrial service interfaces.
The USB side conforms to USB 2.0 and operates at up to 12 Mbps. Dual serial channels allow a single USB connection to serve two independent embedded targets or separate read and write command channels. The controller architecture therefore consolidates multiple low-speed peripheral links behind one standard USB host interface while retaining recognizable UART or I2C protocols on the device side.
Typical uses include industrial equipment configuration, USB-to-UART adapters, USB-to-I2C sensor gateways, laboratory data-logging equipment, and embedded service consoles. The 24-QFN format is appropriate for compact commercial and industrial products where connector space is limited. Its exposed thermal pad also provides a practical path for heat transfer on multilayer PCBs.
For reliable implementation, route USB differential signals as a controlled-impedance pair, place interface-support components close to their associated pins, and connect the exposed pad according to the manufacturer's land-pattern and thermal guidance. Confirm UART voltage levels and I2C pull-ups before attaching external circuitry, because the USB interface and the bridged serial domains may have separate electrical constraints.
This product page combines manufacturer interface descriptions, package and environmental details, cross-reference findings, and application-oriented engineering guidance. It also distinguishes a confirmed same-family bridge option from unreferenced alternatives, helping engineers evaluate PCB reuse, firmware compatibility, and protocol requirements before making a replacement decision.
Drop-in-Alternativen für CY7C65217-24LTXIT – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
CY7C65217A-24LTXIT
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
CY7C65217-24LTXIT Technische Daten
| Device Type | USB 2.0 serial bridge controller |
| USB Interface | USB 2.0 |
| Maximum USB Data Rate | 12 Mbps |
| Serial Interface | Dual-channel UART and I2C |
| Maximum UART Data Rate | 115200 bps |
| Transmit Buffer | 190 bytes per channel |
| Receive Buffer | 190 bytes per channel |
| UART Parity Support | No parity, even, odd, mark, or space parity |
| UART Error Reporting | Parity, overrun, and framing errors |
| Versorgungsspannung | 3.3 V |
| Betriebstemperaturbereich | -40°C to 85°C |
| Gehäuse | 24-QFN (4 mm x 4 mm) |
| Package Type | 24-UFQFN with exposed pad |
| Montageart | Surface mount |
| ECCN | EAR99 |
CY7C65217-24LTXIT 24-ufqfn with exposed pad Pinbelegungsleitfaden
Pinbelegung für CY7C65217-24LTXIT (24-ufqfn with exposed pad-Gehäuse). Pin-Nummerierung, Funktionen und Anschlussdiagramme sind im Herstellerdatenblatt definiert. Entnehmen Sie diesem den genauen Footprint und Lötrichtlinien.
Keine detaillierten Pinbelegungsdaten verfügbar für CY7C65217-24LTXIT.
Siehe die Datenblatt für die vollständige Pin-Konfiguration.
Typische Anwendungen
CY7C65217-24LTXIT ist geeignet für 6 Anwendungs: Industrial Equipment Configuration Port, USB-to-UART Data Logger, USB-to-I2C Sensor Gateway, Laboratory Instrument USB Interface, USB Service Console, Connected Sensor Node.
Industrial Equipment Configuration Port
The CY7C65217-24LTXIT is well suited to an industrial equipment configuration port because it places a USB 2.0 host connection beside dual-channel UART or I2C peripheral interfaces. A service technician can use a standard USB host to update settings, retrieve logs, or run diagnostics without assigning the embedded controller a full USB protocol stack. UART rates up to 115200 bps and 190-byte transmit and receive buffers per channel support framed command traffic, while the 24-QFN footprint preserves board area in compact control products. The -40°C to 85°C operating range supports industrial environments, although the final system still requires grounding, surge protection, and isolation appropriate to its installation.
Empfohlen
USB-to-UART Data Logger
The CY7C65217-24LTXIT can bridge a USB host to two UART endpoints on a data logger, providing a simple path for transferring sensor records or configuration commands. USB 2.0 supports links at up to 12 Mbps, while the UART side operates at up to 115200 bps. The 190-byte transmit and receive buffers per channel help separate USB packet traffic from serial framing, and parity, overrun, and framing-error reporting helps the host identify communication faults. In a compact instrument, the 4 mm by 4 mm 24-QFN package is more area-efficient than a discrete USB transceiver plus UART interface arrangement.
Empfohlen
USB-to-I2C Sensor Gateway
For a USB-to-I2C sensor gateway, the CY7C65217-24LTXIT provides a host-controlled bridge that can expose I2C devices through a USB connection. The dual-channel serial architecture can support separate command and measurement paths when firmware assigns the channels appropriately. A 12 Mbps USB link gives the gateway ample host-side bandwidth for periodic telemetry, while the serial side can use standard I2C transactions through external pull-ups and bus transceivers. The controller's 24-QFN package and exposed pad suit compact embedded gateways, but designers must verify pin multiplexing, logic levels, pull-up values, and bus capacitance from the manufacturer documentation.
Empfohlen
Laboratory Instrument USB Interface
The CY7C65217-24LTXIT can add a compact USB service interface to laboratory instruments that already use UART or I2C internally. The USB connection can carry commands, calibration files, and diagnostic records, while one of the two serial channels connects to the instrument's control processor. At 115200 bps, UART traffic is suitable for configuration and status exchange, and USB 2.0 provides higher host-side throughput for bulk transfers. The exposed-pad 24-QFN package needs careful layout so the thermal pad and high-speed USB path do not compromise analog measurement performance elsewhere on the board.
Empfohlen
USB Service Console
The CY7C65217-24LTXIT supports a dedicated USB service console in networking or embedded-control equipment by connecting a USB host to an internal UART channel. This approach allows firmware upgrades, diagnostic logs, and remote configuration while avoiding an exposed connector on the finished enclosure. The second serial channel can support a separate command path or another compatible peripheral, subject to the device's documented configuration. Its 12 Mbps USB 2.0 interface is more than adequate for service traffic, and the small 24-QFN package is helpful in space-constrained control boards. Production designs should include ESD protection and controlled-impedance USB routing.
Empfohlen
Connected Sensor Node
A connected sensor node can use the CY7C65217-24LTXIT to bridge an embedded I2C sensor network to a USB-connected host or upstream controller. The controller's dual-channel serial capability provides flexibility for separating low-speed configuration traffic from data acquisition, while its 190-byte buffers help manage command and response sequencing. A 12 Mbps USB 2.0 connection permits frequent status reports and batch transfers without forcing the sensor bus to operate at USB speed. The 3.3 V operating supply suits compact electronics, but power budget, bus pull-ups, cable protection, and thermal performance must be validated together for each deployed sensor node.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für CY7C65217-24LTXIT – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | CY7C65217A-24LTXIT |
|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies |
| Package | 24-QFN (4 mm x 4 mm) | 24-QFN (4 mm x 4 mm) |
| Device Type | USB 2.0 serial bridge controller | USB 2.0 serial bridge controller |
| USB Interface | USB 2.0 | USB 2.0 |
| Serial Interfaces | Dual-channel UART and I2C | GPIO, I2C, serial, and UART |
Wichtigste Unterscheidungsmerkmale
- Combines USB 2.0 with two serial protocol families (vs. CY7C65217A-24LTXIT)
- Supports a 12 Mbps USB 2.0 data rate (vs. CY7C65217A-24LTXIT)
- Provides 190-byte transmit and receive buffers per channel (vs. CY7C65217A-24LTXIT)
Designhinweise
Route the USB differential pair as a short, continuous impedance-controlled path, with its length and geometry selected from the manufacturer's layout guidance. Place the USB connector, protection components, and controller in the same signal path order so transient energy is diverted before it reaches the IC. Keep the 3.3 V decoupling capacitor close to the supply pin and provide a direct, low-impedance thermal connection from the exposed pad into the PCB ground plane.
Do not treat the 24-QFN body size as the complete footprint. The CY7C65217-24LTXIT has 24 perimeter pins plus an exposed pad, and the pad geometry must match the manufacturer's land pattern. Before substituting a controller, compare every perimeter-pin assignment, peripheral enable state, and exposed-pad connection. Also verify that UART logic levels and I2C pull-ups match the attached circuitry; USB compliance alone does not validate the external serial domain.
Keep clock, USB, and serial-routing decisions separate from sensitive analog sections of the target board. The controller can generate switching activity on the USB and UART links, so maintain practical return paths and avoid routing high-current outputs beneath sensitive inputs. Where an external RS-232 or long cable is connected, include the appropriate line driver or receiver and protection network; the bridge controller does not by itself provide the physical-layer signaling required by every external interface.
Compliance-Informationen
The component listing identifies ECCN EAR99, but no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declaration was identified.