{"id":9386,"date":"2026-07-03T06:18:21","date_gmt":"2026-07-03T06:18:21","guid":{"rendered":"https:\/\/materialparts.com\/st25r3916-aqwt\/"},"modified":"2026-07-03T07:37:54","modified_gmt":"2026-07-03T07:37:54","slug":"st25r3916-aqwt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/st25r3916-aqwt\/","title":{"rendered":"ST25R3916-AQWT"},"content":{"rendered":"

Productos<\/h2>\n

The ST25R3916-AQWT is a high-performance NFC universal device from STMicroelectronics, supporting NFC initiator, target, reader, and card emulation modes. Fully EMVCo 3.0 compliant, it integrates an advanced analog front end with high RF output power (>1.6W) for direct antenna driving. The -AQWT package is a 32-pin VFQFPN (5x5mm) with wettable flanks. It supports ISO 14443A\/B, ISO 15693, FeliCa, and NFC peer-to-peer, with features like automatic antenna tuning (AAT) and noise suppression receiver (NSR).<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Operating Modes<\/td>\nReader\/Writer, Card Emulation, Active\/Passive P2P<\/td>\n<\/tr>\n
NFC Protocols<\/td>\nNFC-A\/B\/F\/V, ISO 14443A\/B, ISO 15693, FeliCa<\/td>\n<\/tr>\n
Data Rates<\/td>\nUp to 848 kbit\/s (NFC-A\/B), 424 kbit\/s (NFC-F)<\/td>\n<\/tr>\n
EMVCo<\/td>\n3.0 compliant (analog and digital)<\/td>\n<\/tr>\n
RF Output Power<\/td>\n>1.6W (differential antenna)<\/td>\n<\/tr>\n
Antenna Tuning<\/td>\nAutomatic (AAT) via variable capacitor<\/td>\n<\/tr>\n
Card Detection<\/td>\nCapacitive and inductive sensors<\/td>\n<\/tr>\n
Communication Interface<\/td>\nSPI (10 Mbit\/s), I2C (3.4 Mbit\/s HS mode)<\/td>\n<\/tr>\n
FIFO<\/td>\n512 bytes<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n2.4V to 5.5V<\/td>\n<\/tr>\n
Paquete<\/td>\n32-pin VFQFPN (5x5x1 mm, wettable flanks)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +105C<\/td>\n<\/tr>\n
Estado de las piezas<\/td>\nNRND<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • High RF output power (>1.6W) for excellent read range without external amplifier<\/li>\n
  • EMVCo 3.0 analog and digital compliance for POS terminal certification<\/li>\n
  • Automatic antenna tuning (AAT) compensates for environmental detuning<\/li>\n
  • Noise suppression receiver (NSR) for operation near noisy LCD displays<\/li>\n
  • Active wave shaping (AWS) reduces RF overshoot for easier compliance<\/li>\n
  • Low power capacitive and inductive card detection wake-up<\/li>\n
  • NFC card emulation and active P2P for device pairing<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • EMVCo 3.0 contactless payment terminals<\/li>\n
    • NFC reader for consumer and industrial devices<\/li>\n
    • Device pairing and authentication<\/li>\n
    • Wireless charging protection (Qi NFC)<\/li>\n
    • Access control and e-government ID readers<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ST25R3916-AQWT is a high-performance NFC universal device from STMicroelectronics, supporting NFC initiator, target, reader, and card emulation modes. Fully EMVCo 3.0 compliant, it integrates an advanced analog front end with high RF output power (>1.6W) for direct antenna driving. The -AQWT package is a 32-pin VFQFPN (5x5mm) with wettable flanks. It supports […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[532],"chip_brand":[142],"class_list":["post-9386","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","tag-st25r3916-aqwt","chip_brand-st"],"acf":{"brief_explanation":"NFC universal device, EMVCo 3.0, >1.6W RF power, AAT, card emulation, 32-pin VFQFPN, -40 to +105C","date_code":"25+","package_case":"32-pin VFQFPN (5 x 5 x 1.0 mm, wettable flanks)","in_stock":12622,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/st25r3916.pdf","price":"$4.90 @ 1ku","product_introduction":"The ST25R3916-AQWT is a high-performance NFC universal device from STMicroelectronics, supporting all four NFC operating modes (reader, writer, card emulation, peer-to-peer) with full EMVCo 3.0 compliance. Its high RF output power (>1.6W) enables direct antenna driving without external amplifiers, while automatic antenna tuning (AAT) compensates for environmental changes. The noise suppression receiver (NSR) and active wave shaping (AWS) simplify regulatory compliance. Packaged in a 32-pin VFQFPN with wettable flanks, it operates from -40C to +105C.","working_principle":"The ST25R3916-AQWT operates as a multi-mode NFC transceiver. In reader mode, the transmitter generates a 13.56MHz carrier via an integrated power amplifier that drives the antenna directly, producing >1.6W differential output. The ASK modulation depth is programmable from 5% to 40% via digital control. The receiver chain includes AM\/PM and I\/Q demodulators with automatic channel selection or baseband summation, followed by automatic gain control (AGC) and a noise suppression receiver (NSR) that rejects out-of-band interference. Active wave shaping (AWS) controls the transmitter output transition edges to minimize overshoot and undershoot. Automatic antenna tuning (AAT) uses integrated variable capacitors to maintain resonance at 13.56MHz even when the antenna environment changes (e.g., metal proximity). For card emulation mode, the device modulates the external reader field using a load modulation circuit. Low-power card detection uses capacitive and inductive sensors to detect card presence without activating the reader field, consuming minimal current. The 512-byte FIFO buffers data between the host MCU (via SPI or I2C) and the NFC protocol engine.","pin_description":"\n
      Pin Group<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>\n
      Power<\/td>TVDD, AVDD, DVDD, PVDD<\/td>Power<\/td>Transmitter 5V, Analog 3.3V, Digital 3.3V, Peripheral 1.65-5.5V<\/td><\/tr>\n
      Antenna<\/td>ANT1, ANT2, ANTX1, ANTX2<\/td>Analog<\/td>Differential antenna connection and transmit outputs<\/td><\/tr>\n
      SPI<\/td>SDI, SDO, SCK, CSN<\/td>Digital<\/td>SPI interface (up to 10 Mbit\/s)<\/td><\/tr>\n
      I2C<\/td>SDA, SCL<\/td>Digital<\/td>I2C interface (up to 3.4 Mbit\/s HS mode)<\/td><\/tr>\n
      Interrupt<\/td>IRQ<\/td>Output<\/td>Host interrupt (active low)<\/td><\/tr>\n
      Crystal<\/td>XTAL1, XTAL2<\/td>Analog<\/td>27.12 MHz crystal oscillator<\/td><\/tr>\n
      AAT<\/td>AAT1, AAT2<\/td>Analog<\/td>Automatic antenna tuning capacitor outputs<\/td><\/tr>\n<\/table>","application_scenarios":"\n
      Application<\/th>Circuit Role<\/th>Key Requirement<\/th><\/tr>\n
      POS Terminal<\/td>Contactless payment reader<\/td>EMVCo 3.0, >1.6W, AAT, NSR<\/td><\/tr>\n
      NFC Pairing<\/td>Bluetooth\/WiFi pairing aid<\/td>P2P mode, card emulation, 512B FIFO<\/td><\/tr>\n
      Access Control<\/td>Smart card reader<\/td>ISO 14443A\/B, high power, -40~105C<\/td><\/tr>\n
      Qi Protection<\/td>NFC wireless charging auth<\/td>Card emulation, low power detect<\/td><\/tr>\n
      Industrial Tag<\/td>Asset tracking reader<\/td>ISO 15693, AAT, long range<\/td><\/tr>\n<\/table>","alternative_models":"\n
      Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
      ST25R3916B-AQWT<\/td>STMicroelectronics<\/td>Updated revision (B), improved AWS<\/td><\/tr>\n
      ST25R3917-AQWT<\/td>STMicroelectronics<\/td>Reduced feature set, no card emulation, no AAT<\/td><\/tr>\n
      PN5180A0HN\/C2<\/td>NXP<\/td>NFC frontend, EMVCo 3.0, different interface<\/td><\/tr>\n
      PN7150B0HN\/C11002<\/td>NXP<\/td>NFC controller with integrated firmware<\/td><\/tr>\n
      TRF7970ARHBR<\/td>TI<\/td>NFC\/RFID transceiver, 13.56MHz, 32-VQFN<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9386","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=9386"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9386\/revisions"}],"predecessor-version":[{"id":9414,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/9386\/revisions\/9414"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=9386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=9386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=9386"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=9386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}