CH340C vs CH340N 比較
詳細並排比較 CH340C 由 NI 與 CH340N 由 WCH. 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 | CH340C | CH340N |
|---|---|---|
| 品牌 | NI | WCH |
| 類別 | Interface ICs | Interface ICs |
| 生命週期狀態 | 啟用中 | 啟用中 |
| Product Type | USB to UART Bridge Controller IC | — |
| USB Standard | USB 2.0 Full-Speed (12 Mbps) | USB 2.0 Full-Speed (12 Mbps) |
| 供應電壓 | 3.3 V or 5 V (mode selected by V3 pin) | — |
| 工作溫度 | -20 C to +70 C | -20 °C to +70 °C |
| Maximum Baud Rate | 2 Mbps | 2 Mbps |
| 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 | — |
| 封裝 | SOP-16 | SOP-8 |
| 安裝類型 | Surface Mount | Surface Mount |
| MSL 等級 | [DATA_NEEDED: MSL moisture sensitivity level] | — |
| RoHS 狀態 | Compliant | Compliant |
| Driver Support | Windows 7/8/10/11, Linux (kernel CDC-ACM), macOS | Windows, macOS, Linux (CDC-ACM or vendor INF) |
| Manufacturer | Nanjing Qinheng Microelectronics Co., Ltd. (WCH) | WCH (Nanjing Qinheng Microelectronics Co., Ltd.) |
| 功能 | — | USB 2.0 to UART serial bridge |
| 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) |
| Supported Baud Rates | — | 50 bps to 2 Mbps |
| MODEM Signals | — | RTS, CTS supported |
| External Crystal | — | 12 MHz |