CP2105-F01-GM - USB 2.0 Dual-UART Bridge | Silicon Labs
MPN: CP2105-F01-GM ✓ فعالCP2105-F01-GM نمای کلی
A USB-to-UART bridge is an interface IC that connects a USB host to legacy serial equipment. It converts USB traffic into one or more UART signals, allowing instruments, embedded systems, and service tools to use existing serial protocols without requiring a full USB controller in the host system. The CP2105 dual-UART architecture places two asynchronous serial data buses and modem-control functions on one device, reducing board space while supporting multiple serial links.
The main verified features include USB 2.0 full-speed operation, USB transceiver integration, one internal oscillator, one-time programmable ROM, two UART buses, full modem-control signals, and five digital I/O pins. Royalty-free drivers are identified by the manufacturer product-page result, supporting a straightforward USB-to-serial implementation. The package is a 4 x 4 mm QFN-24, also described in the datasheet snippet as MLF or MLP terminology.
The device is suited to legacy RS-232 migration, USB-to-dual-serial adapters, embedded debug and service interfaces, industrial equipment connectivity, and USB instrumentation. Compared with discrete USB interface implementations, the integrated transceiver, oscillator, ROM, dual UART channels, and modem controls reduce component count and simplify firmware-facing communication.
The exposed-pad QFN-24 package requires careful PCB layout, adequate grounding, and thermal-via placement. USB differential routing should be kept short and impedance-controlled, while UART signals should be separated from noisy switching nodes. The one-time programmable ROM should be considered during product identification and manufacturing planning because programmable identity is not the same as freely rewritable storage.
This page combines the verified manufacturer datasheet description, distributor listings, package information, and practical USB-to-UART design context. It does not infer electrical limits that were not supplied in the verified data; consult the official Silicon Labs datasheet before finalizing power, current, clock, and pin-level design details.
جایگزین‌های drop-in برای CP2105-F01-GM — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای CP2105-F01-GM (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Package, Integrated USB Transceiver, UART Channels, Driver Support, Exposed Pad.
CP2105-F01-GMR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←CP2105-F01-GM
✅ جایگزین مستقیمبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←CP2103-GM
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←CP2104-F03-GM
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←CP2104-F03-GMR
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←CP2105-F01-GM مشخصات
| Product Type | USB 2.0 full-speed to dual-UART bridge controller |
| USB Interface | USB 2.0 full-speed |
| UART Channels | 2 asynchronous serial data buses |
| Modem Control | Full modem-control signals |
| Integrated USB Transceiver | Yes |
| Integrated Oscillator | Yes |
| Programmable ROM | One-time programmable ROM |
| Digital I/O | 5 digital I/O pins |
| بسته‌بندی | 24-QFN, 4 x 4 mm |
| Package Terminology | QFN-24, also described as MLF or MLP in the verified datasheet snippet |
| Exposed Pad | Exposed pad package indicated by the verified datasheet/distributor descriptions |
| Interface Category | USB-to-UART interface IC |
| Host Connectivity | USB host connection |
| Legacy Serial Support | USB-to-serial bridge for legacy serial designs |
| Driver Support | Royalty-free drivers identified by Silicon Labs product-page result |
راهنمای پیکربندی پین CP2105-F01-GM qfn-24, also described as mlf or mlp in the verified datasheet snippet
پیکربندی پین برای CP2105-F01-GM (پکیج qfn-24, also described as mlf or mlp in the verified datasheet snippet). شماره‌گذاری پایه‌ها، عملکردها و نمودارهای اتصال در دیتاشیت سازنده تعریف شده است. برای footprint دقیق و دستورالعمل‌های لحیم‌کاری به آن مراجعه کنید.
داده پین‌آوت تفصیلی موجود نیست برای CP2105-F01-GM.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
CP2105-F01-GM مناسب است برای 7 کاربردs: Legacy RS-232 Migration, USB-to-Dual-Serial Test Equipment, Industrial Device Connectivity, Embedded Debug and Service Ports, USB Instrumentation and Measurement, USB Audio and Control Adapters, Programmable Device Identity.
Legacy RS-232 Migration
The CP2105-F01-GM is appropriate when an existing RS-232 instrument or controller needs to appear as a USB peripheral on a modern host. Its verified USB 2.0 full-speed interface and dual UART buses provide the bridge between USB and serial traffic, while the QFN-24 package helps reduce board area. The board must still include the correct RS-232 line-level transceivers, protection, and connector wiring because the CP2105 provides a bridge controller rather than verified RS-232 voltage conversion.
پیشنهادی
USB-to-Dual-Serial Test Equipment
The CP2105-F01-GM fits test equipment that must expose two legacy serial channels through one USB connection. Its two asynchronous UART buses, full modem-control signals, and royalty-free driver support simplify host enumeration and multi-port software access. Design effort should focus on assigning stable port identities, isolating transceiver circuits, and verifying that both channels meet the instrument’s voltage, timing, and flow-control requirements.
پیشنهادی
Industrial Device Connectivity
For industrial equipment, the CP2105-F01-GM can bridge a USB host to dual serial control or diagnostic channels. The integrated USB transceiver, oscillator, and programmable ROM reduce the external component burden associated with designing a USB-to-serial interface. Industrial implementations should validate grounding, ESD protection, cable length, isolation requirements, and operating-temperature limits because those details were not supplied in the verified search data.
پیشنهادی
Embedded Debug and Service Ports
The CP2105-F01-GM is useful for embedded products that need a compact USB service interface to two internal UART targets. A host can use the bridge to update modules, retrieve diagnostics, or run production tests without exposing a full USB controller in the embedded design. The two UART channels must be assigned to distinct internal buses, and firmware should handle device enumeration, line coding, modem signals, and any one-time programmed identity requirements.
پیشنهادی
USB Instrumentation and Measurement
The bridge architecture supports compact USB instrumentation that needs to retain legacy serial command protocols. The CP2105-F01-GM can present two serial endpoints to a PC, allowing control and measurement traffic to coexist over one USB cable. For accurate measurements, keep analog and sensitive digital sections away from USB and UART return currents, use a solid ground strategy, and confirm driver installation and port enumeration across the target operating systems.
پیشنهادی
USB Audio and Control Adapters
The CP2105-F01-GM can be used in specialized USB adapters where legacy control channels accompany a more complex USB function. Its dual UART channels offer independent command or status paths, and the compact QFN-24 package supports space-constrained adapter boards. This application still requires the target peripheral’s protocol, electrical levels, and timing to be verified; the verified source does not establish audio-specific performance or interface timing.
پیشنهادی
Programmable Device Identity
Because the verified manufacturer description identifies one-time programmable ROM, the CP2105-F01-GM can be considered for products that assign a fixed USB identity or configuration during manufacturing. The ROM should be programmed as part of a controlled production flow, and the design should not depend on repeated user-level rewriting. Confirm the available programming workflow, identifier fields, and production volume requirements in the Silicon Labs documentation before committing to a custom identity scheme.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای CP2105-F01-GM — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | CP2105-F01-GMR | CP2103-GM | CP2104-F03-GM | CP2104-F03-GMR |
|---|---|---|---|---|---|
| Product Type | USB 2.0 full-speed to dual-UART bridge | USB-to-dual-UART bridge family variant | USB-to-serial bridge family variant | USB-to-UART bridge family variant | USB-to-UART bridge family variant |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs | Silicon Labs |
| Package | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) | 24-QFN (4 x 4 mm) |
تفاوت‌های کلیدی
- Dual asynchronous UART channels in one bridge (در مقابلCP2103-GM)
- Integrated USB transceiver and oscillator (در مقابلCP2104-F03-GM)
- Full modem-control signal support (در مقابلCP2104-F03-GMR)
یادداشت‌های طراحی
Use the manufacturer land pattern for the 24-QFN package and expose-pad connection rather than substituting a generic 24-pin footprint. Place the USB connector, protection components, and CP2105-F01-GM in one controlled high-speed USB region. Keep the USB differential pair short, matched, and away from UART switching edges where practical, while providing a continuous ground reference beneath the exposed pad.
Do not assume that a USB-to-UART bridge automatically provides RS-232, RS-485, or isolated serial levels. The CP2105-F01-GM is described as a USB-to-dual-UART bridge, so the external transceiver must match the target voltage standard, direction, baud-rate range, and isolation requirements. Also treat the one-time programmable ROM as a manufacturing resource rather than a field-updatable data store.
Assign the two UART channels deliberately and keep their signal routes away from noisy power converters and USB return currents. Confirm all modem-control signals, ground references, and connector pin assignments against the official Silicon Labs datasheet. Because the verified data does not provide electrical limits, validate supply voltage, absolute maximum ratings, clock requirements, and pin states in the datasheet before schematic release.
اطلاعات انطباق
The supplied verified data does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. The device is an interface IC rather than an explicitly automotive-qualified product in the provided data.
