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125 KHz RFID - GENERAL FEATURES
 
Single chip including microcontroller, analog circuit and antenna driver results in World's lowest count and smallest RFID reader
 
Available as IC and Module
 
Firmware upgrade-able for custom specific applications
 
Module requires only antenna and power supply to function, IC requires just few more passive components to function.
 
 
Automatically demodulates and decodes RF signal and make the actual tag data ready. No need to know about complicated RFID subject
 
Supports Atmel/Temic T55xx transponders and EM4100/02. (Unique)
 
Supports Manchester RF/32 and Manchester RF/64 modulations
 
5V or 3.3V operation ( 3.3V option requires different firmware upgrade)
 
Supports hardware and software Sleep Operation
 
UART Interface up to 115200bps - I2C Interface up to 400KHz. Module comes with RS232 driver(optional)
 
Control-able General Purpose Outputs and Inputs
 
Supports flexible and programmable Wiegand 26 bit output format
 
 
 
 
125 KHz RFID - COOL FEATURES
 
User Programmable Assembler Code( ~4K, can be extended).No need for external microcontroller
 
Upgradable with the specific softwares.Customizable according to user needs
 
Automatically decodes the Manchester RF 32 / 64 signals with strong manchester decode algorithm and makes data ready to be sent or processed
 
Supports Sequential Terminator property
 
Supports Programmable Byte Tracking (e.g. ‘E6’ Header used in T5530 transponders)
 
Supports Answer on Request AOR - Password Mode of Atmel/Temic Transponders
 
Calibrate-able: Programmable drive frequency and programmable gain amplifiers will calibrate Module for best reading / writing distance
 
Programmable time intervals for full power and sleep operation( Economic Power Mode)
 
 
125KHz RFID Overview


SM125 RFID module/chip is designed for 125 KHz RFID applications. Its main advantages are; ease-of-useness, rapid product development and being cost effective. It is the first and unique design in the industry combining analog circuit and microcontroller in a single, mixed signal array chip.

Designers' most desired-features are embedded in the SM125 and it lefts nothnig to user about technical concept of RFID, resulting in profoundly shorter design time.

SM125 has tremendous features. Unlike any competitors' chip, SM125 performs all complicated RFID processes such as amplifiying, filtering, demodulating, decoding and digitizing, automatically and make the tag data ready to be sent over UART-RS232 / I2C / Wiegand 26-bit / Custom defined protocol and can trigger Buzzer/LED/Relay circuit.

SM125 can be controlled over UART-RS232 /I2C or with its most valuable and unique feature can behave as automated without requiring any external controller.

SM125, previousy called CY8C0104/05, is the new name for our 125 KHz devices and comes with a new firmware version (V3.0). The previous BUILD5-SP1 version has been in the field for 4 years, proving the reliability and availability now comes with better and more features with V3.0 firmware. For migration and upgrading information please investigate AN520 application note.

SonMicro Electronics provides, IC, Module, Evaluation kits, Accessories and Reference Designs for 125 KHz RFID applications. Details can be investigated on the left column under Related Products section.
 
SM125-EK-D 125KHz RFID Evaluation Kit
 
 
 
SM125-M1 RFID Module is a 28 pin DIP (600 mil, wide) package type module that includes all necessary components for 125 KHz RFID Reader/Programmer except for only the inductor. It has also RS232 driver chip (SM125-M1-232) at the bottom layer of the PCB (optional)
 
 
 

SM125-IC is the stand alone RFID chip used in SM125-M1 module. It performs both analog and digital signal processing and it is also a microcontroller. The firmware can be upgraded or modified for customer specific applications.

SM125-IC 125 KHz RFID chip requires only few passive components to complete a basic RFID Reader