CH340G vs CH340N Comparison
Detailed side-by-side comparison of CH340G by WCH and CH340N by WCH. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | CH340G | CH340N |
|---|---|---|
| Brand | WCH | WCH |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.31 | $0.37 |
| Product Type | USB to UART Bridge Controller | — |
| Manufacturer | WCH (Nanjing Qinheng Microelectronics) | WCH (Nanjing Qinheng Microelectronics Co., Ltd.) |
| USB Specification | USB 2.0 Full-Speed (12 Mbps) | — |
| Supply Voltage (VCC) | 3.3 V to 5 V | 3.3 V or 5 V |
| IO Logic Level | 3.3 V or 5 V (matches VCC) | — |
| Operating Baud Rate | 50 bps to 2 Mbps | — |
| UART Signals | TXD, RXD, CTS, RTS, DTR, DSR, DCD, RI | — |
| Clock Source | External 12 MHz crystal required | — |
| Operating Temperature | -40 C to +85 C | -20 °C to +70 °C |
| Storage Temperature | -40 C to +125 C | — |
| Maximum VCC | 6.5 V (absolute max) | — |
| IO Pin Voltage Range | -0.5 V to VCC + 0.5 V | — |
| Package | SOP-16 (SOIC-16, 150 mil) | SOP-8 |
| Mounting Type | Surface Mount | Surface Mount |
| RS-232 Assistant Mode | Yes (R232 pin enables internal inverter) | — |
| RoHS Status | Compliant | Compliant |
| Function | — | USB 2.0 to UART serial bridge |
| USB Standard | — | USB 2.0 Full-Speed (12 Mbps) |
| 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 |
| Supported Baud Rates | — | 50 bps to 2 Mbps |
| MODEM Signals | — | RTS, CTS supported |
| External Crystal | — | 12 MHz |
| Driver Support | — | Windows, macOS, Linux (CDC-ACM or vendor INF) |