CH340N vs CH340C 比較
詳細並排比較 CH340N 由 WCH 與 CH340C 由 NI. 比較關鍵規格、電氣參數、封裝、生命週期狀態、價格與供貨情況，以找出最符合您設計需求的元件。
規格比較
| 參數 | CH340N | CH340C |
|---|---|---|
| 品牌 | WCH | NI |
| 類別 | Interface ICs | Interface ICs |
| 生命週期狀態 | 啟用中 | 啟用中 |
| Manufacturer | WCH (Nanjing Qinheng Microelectronics Co., Ltd.) | Nanjing Qinheng Microelectronics Co., Ltd. (WCH) |
| 功能 | USB 2.0 to UART serial bridge | — |
| USB Standard | USB 2.0 Full-Speed (12 Mbps) | USB 2.0 Full-Speed (12 Mbps) |
| Supply Voltage (VCC) | 3.3 V or 5 V | — |
| Internal 3.3 V LDO Output (V3) | ~50 mA available for external load | — |
| UART Logic Levels | 3.3 V or 5 V (matches VCC) | — |
| Maximum Baud Rate | 2 Mbps | 2 Mbps |
| Supported Baud Rates | 50 bps to 2 Mbps | — |
| MODEM Signals | RTS, CTS supported | — |
| External Crystal | 12 MHz | — |
| 工作溫度 | -20 °C to +70 °C | -20 C to +70 C |
| 封裝 | SOP-8 | SOP-16 |
| 安裝類型 | Surface Mount | Surface Mount |
| RoHS 狀態 | Compliant | Compliant |
| Driver Support | Windows, macOS, Linux (CDC-ACM or vendor INF) | Windows 7/8/10/11, Linux (kernel CDC-ACM), macOS |
| Product Type | — | USB to UART Bridge Controller IC |
| 供應電壓 | — | 3.3 V or 5 V (mode selected by V3 pin) |
| Suspend Current | — | 50 uA (typical) |
| Active Supply Current | — | 7 mA (typical, full-speed traffic) |
| On-Chip Oscillator | — | Yes - 12 MHz internal (no external crystal required) |
| UART Signals | — | TXD, RXD, RTS, CTS, DTR, DSR, DCD, RI |
| MSL 等級 | — | [DATA_NEEDED: MSL moisture sensitivity level] |