Recently, from http://www.chongdiantou.com/, it is learned that CPS8821, the latest E-Marker chip launched by ConvenientPower, has passed the certification test of USB-IF Association. The TID number is 4244. Therefore, CPS8821 has become the first E-Marker chip in China and the fifth in the world that has passed USB-IF USB4 certification, which is of milestone significance to the popularization and development of USB4 technology.

ConvenientPower Launches the First USB4 Certified E-Marker Chip CPS8821 in China-askpower

It is understood that Yichong Semiconductor CPS8821 is a high-performance USB Type-C passive cable electronic tag chip (E-marker), which can provide cable main information including current carrying capacity, data transmission capacity and supplier information; The latest USB PD3.0 V2.0 version and USB4 features are supported, and the commands of Discover Identity, Discover SVID, Discover Modes, Enter Modes and Exit Modes are supported, and the Manufacturer_Info data packet is supported, which is convenient for manufacturers to store relevant information in cables.

ConvenientPower Launches the First USB4 Certified E-Marker Chip CPS8821 in China-askpower

ConvenientPower CPS8821 supports an ultra wide working voltage range from 2.7V to 5.5V CC and Vconn ports provide high voltage protection of 33V, and integrate short circuit protection of VBUS and CC/Vconn ports. The chip also integrates the adaptive patent engine of BMC receiver for robust communication with BMC transmitter. In addition to supporting CC MTP programming, the chip can also provide IC-based programming and debugging capabilities, which is convenient for manufacturers to develop and can be widely used in USB-C to USB-C full-function cables.

ConvenientPower Launches the First USB4 Certified E-Marker Chip CPS8821 in China-askpower

The picture shows the customer’s certified USB4 high-frequency Paddle Card

ConvenientPower Launches the First USB4 Certified E-Marker Chip CPS8821 in China-askpower

According to the test of CPS8821 connector equipped with yi chong semiconductor, it supports 20V 5A, 100W power transmission, and the data specifications are USB4 Gen3, 40Gbps, and backwards compatibility leidian 3. It can be seen that the video can also be compatible with 4K 60Hz HD video transmission. Used in USB-C cable, it can be designed as a full-featured high-performance data line.

Yi chong semiconductor CPS8821 is packaged in DFN-6L 2mmx2mm and DFN-8L 2mmx2mm, which is environmentally friendly, lead-free and halogen-free. The detailed characteristics of the chip can be obtained by contacting the dealer.

About ConvenientPower

Founded in 2016 with a registered capital of 120 million yuan, Easy Power is headquartered in Tianfu New District, Chengdu, with branches in Silicon Valley, Korea, Hong Kong, Taiwan, Beijing, Shenzhen, Tianjin and Shanghai.

The company is committed to becoming a global supplier of emerging analog and digital-analog hybrid chips and solutions. The company has gathered an excellent “returnees+natives” management and technical team, with a team size of more than 200 people. The core technical backbones are all from top international semiconductor companies. The company has established cooperation with more than 30 international brands, and its main customers include many well-known enterprises in Europe, America, Japan, Korea and China.

According to the charging head network, E-punch emarker chips have been adopted by first-line brands such as, and sold in large quantities as standard cables for original mobile phones and notebook computers.