Elite Semiconductor Microelectronics Technology
Combining memory, mixed-signal, and wireless communication technologies, ESMT provides you with complete and competitive chip solutions.
In additional to memory IC, ESMT has expanded its product line to cover non-memory area including analog, mixed-signal and system IC segments in recent years. One major product segment is wireless application, focusing IoT connectivity. ESMT currently offers Sub-GHz RF transceiver and SOC suitable for many low power, long range IoT applications such as environmental monitor, home security, smart retail, smart manufacturing, smart buildings, smart agriculture and smart cities. Our IoT Wireless Connectivity team supports LPWAN/LPLAN solutions with ICs, modules hardware, as well as software development kits to provide customers a complete and highly flexible IoT solution that help accelerate product development and time to market.
Products & Services
ER41XX series
ER41XX series is a family of Sub-GHz RF transceivers designed for long-range and low power wireless communication applications. Supporting data rates up to 2 Mbps and integrating dual power amplifiers (PAs), the ER41XX series gives designers the flexibility to optimize for either ultra-long-range communication or ultra-low-power operation. It also integrates NFC connectivity to support convenient short-range wireless interaction.
ER41XX series features multiple power-saving modes and Automatic RX Wake-Up function that operates without MCU intervention. These features help extend battery life and reduce maintenance costs for battery-powered end products.
With receiver sensitivity of up to -112 dBm at 1.25 kbps, adjacent-channel selectivity of -50 dB at 1-channel offset, and blocking performance of -55 dB at 1 MHz, the ER41XX series delivers reliable wireless communication even in high-interference environments.
ER8200
ER8200 is a family of high-performance low-power Sub-GHz RF transmitter SoCs designed for IoT applications. It is well suited for a wide range of wireless control applications, including wireless doorbells, battery or battery-less wireless remote controls, garage door remotes, and smart home systems.
ER8200 supports 433 / 868 / 915 / 920 MHz ISM bands in the Sub-GHz spectrum, enabling flexible deployment across different regions and wireless application scenarios. Its integrated high-efficiency power amplifier (PA) delivers up to +10 dBm output power without requiring an external PA, while optimizing overall power efficiency. At +4 dBm output power, ER8200 also provides excellent current efficiency, making it especially suitable for energy-conscious and battery-less wireless control designs.
ER813X series
ER813x is a family of high-performance and low-power Sub-GHz RF SoCs designed for IoT applications. This chip supports 433 / 868 / 915 / 920 MHz ISM bands in the Sub-GHz spectrum, providing reliable long-range wireless connectivity. It also integrates NFC functionality compliant with the ISO/IEC 14443-3 Type A standard, enabling convenient contactless short-range communication with mobile devices. With an embedded ARM Cortex M3 CPU and 64KB SRAM, 512KB Flash, this SOC is well suited for wide rang applications such as Electronic Shelf Label (ESL), smart meter, asset monitoring, smart manufacturing, logistics management, and other IoT use cases with single chip solution.
For wireless power performance, its proprietary on-chip power amplifier (PA) delivers up to +16 dBm output power without requiring an external PA. It also supports multiple low-power operating modes, with RF receiver current as low as 8 mA at 920 MHz. In addition, Wake-on-RX (WOR) operation can detect incoming wireless signals without MCU intervention, further reducing system power consumption and extending battery life.