# ST25R3916-AQWT (Component)
## Description
RFID Reader/Transponder IC FeliCa, ISO 14443, ISO 15693, MIFARE, NFC I2C, SPI 2.4V ~ 5.5V 32-VFQFN Exposed Pad
#commonpartslibrary
#integratedcircuit
#rfid
#transponder
## Component Details
- **Owner:** adrian95
- **Created:** 11/17/2025
- **Last Updated:** 11/17/2025
- **Visibility:** Public
- **Manufacturer Name:** STMicroelectronics
- **Package or Case Code:** QFN50P500X500X100-33N-D
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Manufacturer Part Number:** ST25R3916-AQWT
- **Datasheet URL:** https://www.st.com/resource/en/datasheet/st25r3916.pdf
- **Part Type:** Integrated Circuit
- **Used in:** 14 projects
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/st25r3916-aqwt/stmicroelectronics.html?utm_currency=USD®ion=europe) | $4.197 | 18 |
| [Digi-Key](https://www.digikey.com/en/products/detail/stmicroelectronics/ST25R3916-AQWT/9826051) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C2908147.html) | $2.7649 | 19 |
| [Mouser](https://www.mouser.com/en/ProductDetail/STMicroelectronics/ST25R3916-AQWT?qs=l7cgNqFNU1i2zMfYpmmcQQ%3D%3D) | $6.58 | 38 |
| [Verical](https://www.verical.com/pd/stmicroelectronics-nfc-rfid-reader-and-writer-ST25R3916-AQWT-7353026?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** STMicroelectronics
- **MPN:** ST25R3916-AQWT
- **Package / Case Code:** QFN
- **Pin Count:** 33
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | VDD_IO | |
| 2 | CSO | |
| 3 | VDD_D | |
| 4 | XTO | |
| 5 | XTI | |
| 6 | GND_D | |
| 7 | VDD_A | |
| 8 | VDD | |
| 9 | VDD_RF | |
| 10 | VDD_TX | |
| 11 | VDD_AM | |
| 12 | GND_DR_1 | |
| 13 | RFO1 | |
| 14 | VDD_DR | |
| 15 | RFO2 | |
| 16 | GND_DR_2 | |
| 17 | EXT_LM | |
| 18 | AAT_A | |
| 19 | AAT_B | |
| 20 | I2C_EN | |
| 21 | VSS | |
| 22 | RFI1 | |
| 23 | RFI2 | |
| 24 | AGDC | |
| 25 | CSI | |
| 26 | GND_A | |
| 27 | IRQ | |
| 28 | MCU_CLK | |
| 29 | BSS | |
| 30 | SCLK/SCL | |
| 31 | MOSI | |
| 32 | MISO/SDA | |
| 33 | GND | |
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*Generated from [https://www.flux.ai/adrian95/st25r3916-aqwt~aj](https://www.flux.ai/adrian95/st25r3916-aqwt~aj)*