Holtek Semiconductor HT6720
The HT6720 is an RF transponder IC with 13.56MHz RF carrier, which provides a low cost batteryless transponder solution when combined with an external inductor. The inductor and internal capacitor form an LC tank which induce voltage from the radiated 13.56MHz carrier signal generated from the reader antenna. The response data is transmitted using PWM/ASK modulation.| Part No. | HT6720 |
|---|---|
| Datasheet | HT6720 Download |
| Manufacturer |  Holtek Semiconductor |
| Description | 13.56MHz RFID Transponder |
| Buy | Stock & Price |
FEATURES
● Very low operating current (4mA @ VDD=3V)● Wide range operating voltage
● Batteryless RF transponder
● Data transmission in read-only operation
● Max. of 64-bits customer programmable data
● 16-bits CRC error detection code
● OTP data memory
● 13.56MHz carrier frequency
● Output data baud rate: 4kbps (Typ.) @ VDD=3V
● PWM/ASK modulation
● Built-in voltage limiter
APPLICATIONS
● Interactive leisure products● Security system
● Access control
● Anti-counterfeit devices
● Material management
● Animal management
● Personnel working time record
● Car park monitoring system
GENERAL DESCRIPTION
HT6720 has a built-in low power RC oscillator which is activated if the induced carrier field strength is high enough to supply the operating current and the response signal (pre-programmed in the OTP memory) is serially transmitted out. Modulation of 13.56MHz is accomplished by damping the LC tank with a fixed baud rate. The transmission information is stored in a 96 bits one time programmable memory OTP, with a 16-bit CRC code (up to 64 bits reserved for customer).
