The following are recommended classifications of popular interface chips in the current market, selected based on high performance, innovative design, and application scenarios, covering the needs of industrial control, consumer electronics, AI servers, and emerging fields:
1、 High speed data transmission interface chip
USB 3.2/10Gbps relay chip
Easy to charge semiconductor CPS8604
The first 10Gbps linear signal repeater in China, supporting USB 3.1 signal conditioning, solves the problem of long-distance transmission signal attenuation through 13dB equalization compensation, and is suitable for 4K video capture and high-speed peripherals.
Realty RTL8157
The first USB-C to 5Gbps Ethernet controller with a measured bandwidth of 4.74Gbps (requires USB 3.2 Gen2 interface), designed with low heat generation at 38 ℃, providing wired network expansion solutions for lightweight devices.
Multi protocol Ethernet+USB integrated chip
Qinheng CH32V307
Based on RISCV architecture, integrate 480Mbps USB PHY and Gigabit Ethernet controller, and realize the connection between industrial IoT gateway and edge computing devices with a single chip.
2、 Control and Expansion Interface Chip
Enhancement and Expansion of I ² C Bus
AW9511 hot swappable buffer from Aiwei Electronics
Support live plugging and unplugging of I ² C devices, 1V pre charging to prevent signal damage, industrial temperature range of 40-105 ℃, and server maintenance efficiency to improve core components.
Nanochip Micro NCA9617 Bidirectional Level Converter
Realize bidirectional conversion of 0.8V5.5V wide voltage range, compatible with SMBus in 1MHz high-speed mode, and solve compatibility issues in mixed voltage systems.
GPIO extension and multiplexing
AW9555 GPIO Expander from Aiwei
16 channel I/O expansion, built-in pull-up resistor for simplified circuit, 400kHz I ² C rate supporting 8-device cascade, preferred for IoT device cost optimization.
Nanochip Micro NCA9545 Four Channel Multiplexing Device
4-way I ² C channel dynamic switching, integrated interrupt aggregation logic, simplified tool for complex sensor network wiring.
3、 Voice interaction interface chip
Offline speech recognition
Nine core electronic NRK330X
240MHz 32-bit processor+neural network algorithm, 5-meter far-field noise reduction, supports 100 local instructions, low-cost voice solution for smart homes.
Nine core NRK3502 Bluetooth dual-mode chip
Integrated NPU unit, supporting 50 offline commands and Bluetooth 5.4, suitable for IoT devices with voice control (such as smart lighting).
4、 Specialized and emerging interface chips
Brain Computer Interface (BCI)
Intan RHD2164
64 channel neural signal acquisition chip, adjustable bandwidth of 0.1Hz and 20kHz, integrated impedance detection and LVDS high-speed transmission, core of research grade EEG research platform.
Motor control interface
Qinheng CH32X034
Integrated PD fast charging protocol+motor driven peripherals, single-chip implementation of TypeC power supply and brushless motor control, highly integrated solution for hair dryer/power tool.
Quick Reference Table for Interface Chip Selection
|Type | Representative chip | Maximum speed/channel | Main application | Advantages and characteristics|
|USB repeater | CPS8604 | 10Gbps | 4K video capture | China's first 10Gbps signal conditioning|
|Ethernet Controller | RTL8157 | 5Gbps | Lightweight Laptop Expansion | Low Temperature 38 ℃ @ Full Load|
|I ² C hot swappable buffer | AW9511 | 400kHz | Server maintenance | Supports live plugging|
|GPIO extender | AW9555 | 16 channel I/O | IoT devices | Built in pull-up simplified circuit|
|Offline speech recognition | NRK330X | 100 commands | Smart home | 5-meter far-field noise reduction|
|Neural signal acquisition | RHD2164 | 64 channels | EEG research | Integrated impedance detection+LVDS|
Selection suggestion:
Industrial Automation: Prioritize the Qinheng RISCV multi protocol chip (CH32V307) to reduce wiring complexity;
Consumer electronics: Nine core NRK330X voice chip+AI I ² C expansion combination to achieve high cost-effectiveness interaction;
Research and Medical: Intan Brain Computer Interface Chip provides microvolt level signal acquisition accuracy.
The above chips all have the ability to replace domestic products, with significant advantages in supply security and cost control. The actual selection needs to be deeply matched with parameters such as interface protocol, voltage domain, and ambient temperature, and can be further verified by referring to the manufacturer's data manual.
