Micro RWD Hitag 1/S

(click on picture to enlarge)

Hitag 1/S module description

Low-cost proximity RFID reader module supporting Philips / NXP Hitag 1, Hitag S256 and Hitag S2048 passive RFID transponders / tags.

The module is completely housed within a 24-pin DIP package (pin compatible with other modules) and only requires a 5v supply and a 700 micro-Henry antenna coil to be a fully featured read/write and tag acceptance system.

The RWD module has outstanding RF drive capability and has a read/write range to ISO card size tags of up to 20cm whilst maintaining reliable communication and high resilience to EMC corruption. This has been achieved through the RWD continuously self-tuning to allow for inductive changes in the RF field and extensive software/hardware filtering.

Micro RWD H1/S also supports an optional data encryption system that allows data to be stored on the tag in an encrypted format. This encryption algorithm is linked to the tag’s unique serial number and protects data from unauthorised access.

Pinout diagram

The RWD module has a TTL level RS232 interface that allows a host system to send and receive easy-to-use optimised commands/data (for example: ASCII “R” command to read tag data and ASCII “W” command to write tag data).

The RWD also has internal EEPROM memory for holding system parameters, encryption keys, lists of authorised serial numbers and supports direct LED drives to give visual indication of acceptance. Up to 100mA of drive current is also provided on several outputs that can be used to switch external loads.

Download Micro RWD Hitag 1/S data sheet

Different versions are available which use the spare I/O pins to output data as clock/data signals or Wiegand protocol signals (in addition to standard TTL RS232 interface).

Download Micro RWD H1/S (Wiegand output) data sheet

We can customise RWD interface and features for your application, contact us for more information

Basic electrical specification

(without LEDs fitted and no auxiliary output drive).

Supported transponders

Hitag S tag has up to 2048 bits (256 byte) read/write memory of which up to 248 bytes are available for user data storage. The first four bytes of memory contain a factory set 32 bit (4 byte) unique serial number.