CP2102N-A02-GQFN24 USB-UART Bridge | Silicon Labs
N.º de pieza: CP2102N-A02-GQFN24 ✓ Activo| Cant. | Precio unitario | Total |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
CP2102N-A02-GQFN24 Descripción general
A USB-to-UART bridge, also called a USB serial interface adapter or interface bridge, converts a USB host connection into a conventional asynchronous serial data path. Within the semiconductor hierarchy, it belongs to interface ICs and system-interface controllers. This device is part of Silicon Labs' USBXpress family and is intended to reduce firmware complexity, external component count, and development time when replacing an RS-232 design with USB.
The CP2102N combines a USB 2.0 full-speed function controller, USB transceiver, oscillator, UART, and four digital I/O pins. USBXpress firmware support allows the host software to present a logical serial port while the bridge handles the USB-to-UART conversion. The 24-QFN package supports compact industrial, embedded, communications, and legacy-equipment designs where board area and USB integration are important.
The four digital I/O pins provide additional control or status connections beyond the serial interface. Their exact electrical limits, supported logic levels, and application-specific usage must be taken from the manufacturer datasheet rather than inferred from the package description. Likewise, UART baud-rate limits, transceiver current, and clock requirements are not quantified in the supplied search data and are marked for data completion where applicable.
Typical uses include USB-to-UART service ports, embedded debug adapters, industrial controllers, data-acquisition equipment, and update interfaces for existing serial products. The integrated USB 2.0 full-speed controller and internal oscillator reduce the number of external interface components compared with a discrete USB implementation.
PCB layout should follow the manufacturer's recommended USB trace and decoupling guidance. Keep the USB differential pair short, controlled, and routed away from noisy analog or switching nodes; place required bypass capacitors close to the supply pins; and verify the exposed-pad or thermal arrangement against the package drawing before release to fabrication.
This product-data synthesis combines the verified manufacturer and distributor links, package identity, interface hierarchy, and porting information with practical implementation guidance. It does not invent undocumented electrical limits or cross-brand substitutes that cannot be proven pin-to-pin compatible.
Alternativas directas para CP2102N-A02-GQFN24 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con CP2102N-A02-GQFN24 (mismo factor de forma y huella) — difiere en Integrated USB Transceiver, Package, RoHS Status, USB Standard.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
CP2102C-A01-GQFN24
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
CP2104-F03-GMR
✅ Sustitución directa✓ En stock
$1.06 / unidad
Ver hoja de datos →CP2102N-A02-GQFN24 Especificaciones
| Product Type | USB-to-UART bridge controller |
| Product Family | USBXpress |
| USB Standard | USB 2.0 full-speed |
| UART Interface | Universal Asynchronous Receiver/Transmitter |
| Operating Supply Range | 3 V to 3.6 V |
| Digital I/O Pins | 4 pins |
| Encapsulado | 24-QFN (4 mm x 4 mm) |
| Tipo de montaje | Surface mount |
| Integrated USB Transceiver | Yes |
| Integrated Oscillator | Yes |
| Integrated UART | Yes |
| External USB Components Required for Development | None |
| Estado RoHS | unknown |
| REACH Status | unknown |
Guía de configuración de pines de CP2102N-A02-GQFN24 24-qfn (4 mm x 4 mm)
Configuración de pines para CP2102N-A02-GQFN24 (encapsulado 24-qfn (4 mm x 4 mm)). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.
No hay datos detallados de patillaje disponibles para CP2102N-A02-GQFN24.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
CP2102N-A02-GQFN24 es adecuado para 6 aplicacións: USB-to-UART Service Port, Industrial Controller Configuration Interface, Data-Acquisition Equipment, Embedded Debug Adapter, Legacy RS-232 USB Retrofit, Network Appliance Maintenance Console.
USB-to-UART Service Port
The CP2102N-A02-GQFN24 fits a compact service interface because it combines a USB 2.0 full-speed controller, transceiver, oscillator, and UART in one 24-QFN 4 mm by 4 mm device. The resulting host sees a USB serial peripheral while the embedded target connects through the bridge's UART signals. This integration reduces the external USB-interface component count and board area compared with a discrete USB implementation. The four digital I/O pins can also support board-control or status functions where their verified electrical limits fit the application. Production design work should follow the Silicon Labs datasheet for pin assignments, supply decoupling, USB routing, and supported host software.
Recomendado
Industrial Controller Configuration Interface
CP2102N-A02-GQFN24 can provide a standardized USB-to-UART configuration channel for an embedded industrial controller. Its integrated USB 2.0 full-speed function controller and internal oscillator reduce the implementation burden associated with a discrete host-to-UART bridge, while its four digital I/O pins may handle auxiliary control or status signals. In an enclosure or machine-control environment, placing the interface on a dedicated maintenance connector can simplify field updates without redesigning the product's existing UART-based architecture. The board must still meet all verified electrical limits, USB layout rules, isolation requirements, and environmental constraints in the manufacturer datasheet.
Recomendado
Data-Acquisition Equipment
The CP2102N-A02-GQFN24 is suitable as the USB communications bridge in compact data-acquisition equipment that streams commands or measurements through a UART link. Its USB 2.0 full-speed interface supplies a standard host connection, and the integrated oscillator and UART reduce the component count around the serial interface. The 24-QFN 4 mm by 4 mm package is advantageous where connector placement and board area are constrained. Four digital I/O pins can participate in trigger, status, or reset functions if their published timing and logic-level specifications satisfy the instrument requirements. Verify baud rate, supply range, and signal-level constraints before release.
Recomendado
Embedded Debug Adapter
CP2102N-A02-GQFN24 can add a standard USB connection to an embedded debug or programming adapter that already uses asynchronous serial commands. Integrating the USB controller, transceiver, oscillator, and UART allows the adapter to avoid a larger multi-chip interface implementation. The four digital I/O pins may be useful for boot control, target reset, or status feedback when their verified electrical characteristics match the debug system. For reliable operation, route the USB differential pair as a controlled pair, place bypass capacitors near the device, and confirm that the selected connector and protection scheme satisfy the manufacturer's USB guidance.
Recomendado
Legacy RS-232 USB Retrofit
The CP2102N-A02-GQFN24 supports an RS-232-to-USB modernization strategy by presenting a USB serial connection while retaining an asynchronous UART interface toward legacy equipment. Silicon Labs describes the CP2102N devices as a way to add USB with minimal components and PCB space. The integrated USB 2.0 full-speed controller, transceiver, oscillator, and UART can therefore reduce interface complexity in a new retrofit board. The three-volt supply class shown in the verified search data should be reconciled with the legacy equipment's logic and transceiver requirements. Electrical-level conversion, protection, grounding, and any galvanic-isolation needs remain application-specific.
Recomendado
Network Appliance Maintenance Console
CP2102N-A02-GQFN24 can serve as the maintenance-console bridge in a compact network appliance because it integrates the USB-to-serial path into one 24-QFN package. Administrators can use a USB-connected host tool while the controller retains its UART-based command channel. The USB 2.0 full-speed interface and integrated oscillator help simplify implementation, while the four digital I/O pins can provide reset, present, or fault signaling where supported. For a network-facing appliance, place the connector and bridge close to the board edge, maintain controlled USB routing, and apply the appropriate enclosure and ESD strategy without disturbing the differential pair's geometry.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para CP2102N-A02-GQFN24 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | CP2102C-A01-GQFN24 | CP2104 |
|---|---|---|---|
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 24-QFN (4 mm x 4 mm) | 24-QFN | 24-QFN |
| USB Pin Resistor Requirement | Use manufacturer CP2102N configuration | Voltage-divider circuit required per AN1505 | Voltage-divider circuit required per AN976 |
| Pin Compatibility | Reference design | Pin compatible with specified voltage-divider addition | Pin compatible with specified voltage-divider addition |
Diferenciadores clave
- Integrated USBXpress interface (frente a CP2102C-A01-GQFN24)
- Direct USBXpress documentation path (frente a CP2104)
- Compact 24-QFN implementation (frente a CP2102-GMR)
Notas de diseño
Follow the manufacturer PCB recommendations for the CP2102N. Keep the USB differential pair short and continuous, use the recommended width and spacing, and avoid routing it across split planes or noisy switching nodes. Place required bypass capacitors near their associated supply pins, and use the exposed-pad or thermal-land pattern specified by the package drawing rather than assuming a generic QFN footprint.
Do not treat a functional alternative as an unconditional drop-in. Silicon Labs AN1505 and AN976 each require a voltage-divider circuit for the USB pins when porting between the relevant devices. Compare the existing schematic, especially the USB D+ and D- bias network, against the applicable bus-powered or self-powered diagram before changing the component. A same-package part can still require board modifications.
Use the manufacturer's USB connection and layout guidance for connector placement, trace geometry, return paths, and decoupling. Avoid adding long test-probe stubs or routing the USB pair alongside high-current power switches. Verify that the selected host software and USB bus power arrangement match the design's bus-powered or self-powered configuration before production release.
The verified operating-supply range is 3 V to 3.6 V. Confirm that the system's regulator tolerance, startup sequence, and noise conditions keep the CP2102N within that range under load. Place supply bypass components close to the relevant pins and account for USB bus-power requirements separately from the bridge's 3 V-class supply operation. Exact capacitor values and current limits must come from the manufacturer datasheet.
Información de cumplimiento
The supplied search extracts do not provide verified compliance statements for this exact MPN. RoHS and REACH must be confirmed against the current manufacturer product page, manufacturer declaration, or authorized distributor record.
