CH340G vs CH340C Comparison
Detailed side-by-side comparison of CH340G by WCH and CH340C by NI. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Specification Comparison
| Parameter | CH340G | CH340C |
|---|---|---|
| Brand | WCH | NI |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $0.31 | $0.34 |
| Product Type | USB to UART Bridge Controller | USB to UART Bridge Controller IC |
| Manufacturer | WCH (Nanjing Qinheng Microelectronics) | Nanjing Qinheng Microelectronics Co., Ltd. (WCH) |
| USB Specification | USB 2.0 Full-Speed (12 Mbps) | — |
| Supply Voltage (VCC) | 3.3 V to 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 | TXD, RXD, RTS, CTS, 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-16 |
| Mounting Type | Surface Mount | Surface Mount |
| RS-232 Assistant Mode | Yes (R232 pin enables internal inverter) | — |
| RoHS Status | Compliant | Compliant |
| USB Standard | — | USB 2.0 Full-Speed (12 Mbps) |
| Supply Voltage | — | 3.3 V or 5 V (mode selected by V3 pin) |
| Maximum Baud Rate | — | 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) |
| MSL Level | — | [DATA_NEEDED: MSL moisture sensitivity level] |
| Driver Support | — | Windows 7/8/10/11, Linux (kernel CDC-ACM), macOS |