CH397A
USB to Ethernet 100Mbps QFN-24(4x4) Interface Controllers
USB2.0/2.1 to 10/100M Fast Ethernet
- Manufacturer
- WCH
- Manufacturer part #
- CH397A
- Store part #
- C7465328
- Package / case
- QFN-24(4x4)
- Category
- Interface Controllers
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
13,842 in stock
#C7465328
Stock & price checked 41 h ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 1+ | ₹152.04 | ₹152.04 |
| 10+ | ₹127.50 | ₹1,275.00 |
| 30+ | ₹114.03 | ₹3,420.90 |
| 100+ | ₹98.62 | ₹9,862.00 |
| 500+ | ₹91.88 | ₹45,940.00 |
| 1,000+ | ₹88.84 | ₹88,840.00 |
1 × ₹152.04
₹152.04
excl. GST
₹179.41 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 6,000 per reel
CH397A
₹152.04 for 1 + GST
Specifications
- Operating Temperature
- -40℃~+85℃
- Voltage - Supply
- 3.3V;5V
- Features
- Low-power mode;Wake-up function;Power-on reset;Built-in clock generator
- Applications Function
- USB to Ethernet
- Data Rate
- 100Mbps
- Quiescent Supply Current
- 400uA
- USB Protocol
- USB 2.0;USB 2.1
- Current - Supply
- 80mA
Packaging & compliance
- RoHS
- RoHS
- Lifecycle
- Active
- Moisture sensitivity
- MSL 3 (168 hours)
- Packaging
- Tape & Reel (TR)
- Standard pack
- 6,000 / Reel
- Sold per
- Piece
- Minimum order
- 1
- Unit weight
- 0.08 g
Overview
CH397 is a highly integrated, low-power USB NIC chip featuring a built-in Qingke RISC-V processor, a high-speed USB controller and transceiver PHY compliant with the USB 2.1 specification, and an Ethernet MAC+PHY compliant with the IEEE 802.3 specification supporting 10M/100M networks. The chip is compatible with standard USB host interfaces on desktop computers, laptops, tablets, gaming consoles, and other devices, enabling Ethernet interface expansion via USB.
Key features
- Single-chip USB2.0/2.1 to 10/100M Fast Ethernet, integrating USB PHY, Ethernet MAC, and Ethernet PHY
- Supports CDC-ECM, CDC-NCM, and RNDIS protocols; driver-free or optional vendor driver
- Supports 10Mbps and 100Mbps speeds, compatible with IEEE 802.3 10BASE-T/100BASE-TX
- Supports 10M/100M auto-negotiation
- Built-in TX/RX packet buffer
- Supports IPv4/IPv6 packet checksum; supports IPv4 TCP/UDP/HEAD and IPv6 TCP/UDP packet checksum generation and verification
- Supports IEEE 802.3x flow control and half-duplex collision backpressure flow control
- Supports IEEE 802.3Q VLAN tagging
- Supports hibernate mode and low-power sleep mode; supports network low-power configuration and dynamic power management
- Supports remote wake-up via Magic Packet and Wake-on-LAN events
- Supports UTP CAT5/CAT6 twisted pair; transmission distance up to 120 meters
- Supports Auto-MDIX TX/RX swapping with automatic polarity detection
- Configurable LED blink frequency and duty cycle
- Built-in LDO; single power supply
- Built-in 50Ω impedance matching resistors and crystal oscillator capacitors; simplified peripheral circuitry
- Processor IP, controller, and transceiver IP fully proprietary and tightly integrated for high efficiency, low cost, and no IP licensing fees
- 6KV enhanced ESD performance, Class 3A
- Available in QFN24, QFN32, and other package options
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