Company Profile
Nanjing CSM-IC Microelectronics Co., Ltd. is an fabless integrated circuit design company. It was founded by the Institute of Microelectronics of the Chinese Academy of Sciences, Nanjing Internet of Things Center and the returnees who studied in the United States at the end of 2012. At the end of 2015, it absorbed and merged Wuxi Zhongke Microelectronics Industrial Technology Research Institute Co., Ltd. In 2020, it became a subsidiary of EPOCH Technology, IMECAS, Co., LTD. The company and its wholly-owned subsidiaries have been recognized as national high-tech enterprises, and it is Nanjing Engineering Technology Research Center.
The company is located in Nanjing Internet of Things Center, Xuzhuang Software Park, Xuanwu District, Nanjing, focusing on the development and production of high integration, low power consumption, excellent performance, cost-effective wireless communication and Internet of Things core chips.
The company’s R&D team has strong technical strength. The R&D team has more than 50 people, and more than 70% of the staffs have a graduate degree or above.
The main products of the company include Ultra-low power 2.4GHz data communication chips, 2.4GHz active RFID chips, 13.56MHz contactless card reader chips and 125KHz low-frequency trigger chips, which have been recognized by many well-known customers in various fields, and the accumulative sales volume of the products has reached hundreds of millions. Among them, 2.4GHz data communication chips occupy a leading position in the domestic active RFID industry, and have been successfully applied to Smart campus, Smart street lamp, Anti-theft system of electric two-wheeler, Smart cold chain transportation management, Fixed asset management, etc., playing an important role in the realization of China’s smart city construction process.
With the goal of “Leading IC Enterprise in the Internet of Things Communication Industry”, Nanjing CSM-IC Microelectronics is determined to become the world’s top IC design company.
Main Business
The main products of the company include Ultra-low power 2.4GHz data communication chips, 2.4GHz active RFID chips, 13.56MHz contactless card reader chips and 125KHz low-frequency trigger chips, which have been recognized by many well-known customers in various fields, and the accumulative sales volume of the products has reached hundreds of millions.
Among them, 2.4GHz data communication chips occupy a leading position in the domestic active RFID industry, and have been successfully applied to Smart campus, Smart street lamp, Anti-theft system of electric two-wheeler, Smart cold chain transportation management, Fixed asset management, etc., playing an important role in the realization of China’s smart city construction process. With the goal of “Leading IC Enterprise in the Internet of Things Communication Industry”, Nanjing CSM-IC Microelectronics is determined to become the world’s top IC design company.
Main Products
Si24R1
Ultra-low Power High Performance 2.4GHz GFSK Transceiver
Features：
- Worldwide 2.4GHz ISM band operation
- Modulation: GFSK/FSK
- Air data rate: 2Mbps/1Mbps/250Kbps
- Ultra low shutdown current: 1uA
- Ultra low standby current: 15uA
- Receiver sensitivity: -83dBm @2Mbps
- Maximum transmission power: 7dBm
- RX supply current (2Mbps): 15mA
- TX supply current (2Mbps): 12mA (0dBm)
- Internal integrated high PSRR LDO
- Supply range: 1.9-3.6V
- Digital I/O voltage range: 1.9-5.25V
- Max 130us start-up from standby mode
- Maximum rate 10MHz,4-wire interface SPI
- Embedded ARQ baseband protocol engine
- TX/RX Hardware interrupt output
- Support 1bit RSSI output
- Low cost crystal: 16MHz±60ppm
- Minimal peripheral devices, reducing system application costs
- QFN20 package
Si522
13.56MHz Contactless Reader Chip
Features：
- Highly integrated analog circuitry to demodulate and decode responses
- Buffered output driver with minimal peripheral components connected to the antenna
- Supports ISO/IEC 14443 A
- Typical operating distance in Read/Write mode up to 50 mm depending on the antenna size and tuning
- Supports ISO/IEC 14443 A higher rate communication, up to 848 kBd
- Various host controller interfaces are implemented
- -SPI interface up to 10Mbit/s
- -I2C interface
- -RS232 Serial UART up to 1228.8 kBd, with voltage levels dependant on pin voltage supply
- Buffer handles 64 byte send and receive
- Flexible interrupt modes
- Hard reset with low power function
- Power-down by software
- Programmable timer
- Internal oscillator for connection to 27.12MHz quartz crystal
- 2.5V to 3.6V power supply
- CRC coprocessor
Si3262
13.56MHz Contactless Reader SoC Chip
Features：
Si3262 is a highly integrated low-power SOC chip that has low power consumption, low pin count and wide voltage operating range. It integrates rich peripherals such as 13/14/15/16-bit precision ADC, LVD, UART, SPI, I2C, TIMER, WUP, IWDG, RTC, 13.56MHz wireless Reader/Writer, etc. The Core uses RISC-V RV32IMAC (2.6 CoreMark/MHz). Si3262 supports ISO/IEC 14443 A/B Mifare.
Si3933
3-Channel Low-Power Programmable ASK Receiver
Description：
Si3933 is a three-channel low power programmable ASK receiver. This receiver can generate a wake-up signal upon detection of a data signal with a carrier frequency in the range of 15 kHz to 150 kHz. It can be used to wake-up active tags in real time location systems (RTLS), passive keyless entry (PKE), and other similar tracking and access control systems. The Si3933 provides additional RSSI value for each active channel, it supports a programmable data rate and Manchester decoding with clock recovery. The receiver comes in 16-pin TSSOP or QFN package that has a temperature range of -40°C to +85°C.
Features：
- 3-channel ASK wake-up receiver
- Carrier frequency range 15 – 150 kHz
- Current consumption in low power listening mode 2.1 μA
- Wake-up sensitivity 80μVrms
- Adjustable sensitivity level
- Programmable wake-up pattern 16-bit or 32-bit Manchester
- Supporting for two types of awake : frequency detection, wake-up pattern
- Periodic artificial wake supported (1s – 2h)
- Operating supply range 2.4V – 3.6V
- Operation temperature range -40°C to 85°C
- Si3933 is perfect for wireless sensor, active RFID tags, and passive keyless entry applications.