The ST25DV04K, ST25DV16K and ST25DV64K devices are NFC RFID tags offering respectively 4 Kbit, 16 Kbit, and 64 Kbit of electrically erasable programmable memory (EEPROM). ST25DV04K, ST25DV16K and ST25DV64K offer two interfaces. The first one is an I2C serial link and can be operated from a DC power supply.
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rfid reader are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for rfid reader. AVR based 125kHz RFID Evaluation Kit User Guide 3-1 5216A–RFID–04/08 Section 1 Introduction Congratulations on your purchase of Atmel’s AVR ® based 125 kHz RFID Evaluation Kit. This Evaluation Kit is a complete stand-alone RFID system that demonstrates the Atmel approach to 125 kHz RFID. The MLX90109 is a single chip RFID transceiver for the 125kHz frequency range. It has been conceived for minimum system cost and minimum power consumption offering all required flexibility for a state of the art AM transceiver base station. /** Arduino library to interact with SonMicro SM125 RFID Reader * * SM125-IC supports Manchester modulation. The supported tags are Atmel / Temic T55xx(Q5, T5551, T5552, * T5554,T5555,T5557) and the industries’ most popular 125 KHz read-only EM4102 tag from the EM Micro. INTERFACE FOR USAGE IN 125 / 134.2 KHZ RFID BASESTATION APPLICATIONS Description The EM4097 (previously named P4097) chip is a CMOS integrated transceiver circuit intended for use in an RFID basestation to perform the following functions: Antenna driving with carrier frequency to transfer energy to the transponder
RFid Reader MikroElektronika RFid Reader The RFid Reader additional board is used to read identification cards (RFid Cards) using radio waves.This additional board features a receiver/transmitter module with antenna and a 2x5 male connector that enables connection with development systems. RFID-TAGS RFID TAGS FOR MOD-RFID125 AND MOD-RFID125-BOX 125KHZ RFID 125kHz ISO card tag 86 x 54 x 0.8 mm RFID 125kHz Clamshell tag 86 x 54 x 1.8 mm RFID 125kHz Keyfob tag 36.5 x 30 x 7.5 mm RFID 125kHz watch tag 230 x 32 x 2 mm RFID 125khz sticker 20 x 1 mm INFO: These RFID tags operate at 125KHz and are suitable for MOD-RFID125 and MOD-RFID ... For 125 kHz, a resistor value of 110 kΩ is defined. For other frequencies, use the following formula: This input can be used to adjust the frequency close to the resonance of the antenna. For more details refer to the section “Applications” on page 10” and to the application note ANT019. Figure 3-5. Equivalent Circuit of Pin R F Dynamic NFC/RFID tag IC with 4-Kbit EEPROM, energy harvesting, I²C bus and ISO 15693 RF interface Datasheet -production data Features • Belonging to ST25 family, which includes all NFC/RF ID tag and reader products from ST I2C interface • Two-wires I2C serial interface supports 400 kHz protocol • Single supply voltage: – 1.8 V to 5.5 V 125 kHz 8H10D-format EM Reader Datasheet V1.6 (RAD-A200-U00) Work for EM4100 or compatible RFID card, output 8H10D format RS232 interface (9600, N, 8, 1) Reading Distance : 50mm ~ 80mm with ISO card Power: USB port Item/Specs RAD-A200-U00 Card EM4100 or compatiable Frequency 125 kHz Dimensions(mm) 100 x 140 x 30