The SM1251-SMD is a highly integrated 125 kHz SMD RFID module, encapsulating the power of a ARM® Cortex® microcontroller, analog circuit, and antenna driver within a single compact package. This module is designed to provide OEMs with a reliable, cost-effective solution for embedding RFID functionality into their products, offering ease of integration and robust performance across a wide range of RFID proximity card applications.
This design represents an enhancement of Sonmicro's pioneering, legacy SoC-based RFID IC, named SM125-IC, and encapsulates years of innovation and proprietary technology.
Its streamlined design eliminates the need for external amplifiers, filters, and microcontrollers, significantly reducing overall system cost and complexity.
The SM1251-SMD module is designed for compatibility with a variety of transponders, including Atmel/Temic T55xx and the widely used EM4100/02. It supports both Manchester RF/32 and Manchester RF/64 modulations. Engineered for simplicity, it requires only an antenna and a power supply to function effectively. The module automatically demodulates and decodes RF signals, preparing the actual tag data for immediate use.
Ideal for embedding into products such as access control systems, the SM1251-SMD supports a wide array of applications due to its small size and powerful features. It is particularly suited for designers seeking to integrate RFID functionalities without the bulk or complexity of traditional designs.
The SM1251-SMD works with both 3.3V and 5V power, giving you the flexibility to use it in most existing systems.
The SM1251-SMD features a built-in bootloader, a valuable tool for keeping your device up to date. This bootloader allows for:
The SM1251-SMD uses the same pin layout with its popular counterpart, the 13.56 MHz RFID module SM5211-SMD This thoughtful design allows for easy integration into existing designs, reducing development time and costs. Swapping the modules requires only a change of the antenna, eliminating the need for a complete redesign. The same baseboard can be used for both 125 kHz and 13.56 MHz RFID applications.
The SM5211-SMD is a compact module measuring 2.0 x 2.2 cm (approximately 0.8 x 0.9 inches), equipped with SMD pads suitable for automated assembly, making it ideal for space-constrained applications.
We offer customization services tailored to meet specific project needs, from custom firmware development to complete system design. Whether adjusting form factors, antenna designs, or integration protocols, our goal is to ensure that the SM1251-SMD not only meets but exceeds your project requirements.
Contact us today to explore how the SM1251-SMD can enhance your product offerings with its advanced features, reliability, and scalability.