ST25DV02K-W2 - STMicroelectronics

ST25DV02K-W2 Dynamic NFC/RFID tag-IC

1 Description The ST25DV02K-W1/2 is an ISO 15693 and NFC Forum Type 5 tag, with one or two pulse width modulation (PWM) outputs and 2 Kbits of electrically erasable programmable memory (EEPROM). It offers two interfaces. The first delivers up to 2x independent PWM output signals and the second is an RF link activated by the received carrier electromagneti.

Features

Pulse width modulation outputs
• Two independent outputs: 1x PWM output on ST25DV02K-W1, 2x PWM outputs on ST25DV02K-W2
• From 488 Hz to 31250 Hz
• 62.5 ns pulse width resolution: from 15-bit resolution at 488 Hz to 9-bit resolution at 31.25 kHz
• Accuracy: ±10% over temperature range
• No need for external oscillator
• Supply voltage from 1.8 V to 5.5 V, independent from contactless interface
• Independent push-pull outputs
  – Up to 4 mA drive capability per output
  – Adjustable output drive for low power and low noise application
• Live update of PWM parameters controlled by contactless interf.