ST25R3911B-AQFT

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STMicroelectronics

NFC / RFID TAG & READER IC, SPI, FELICA, ISO 18092/14443A/14443B/15693, NFC FORUM, 32 PINS, QFN

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ST25R3911B-AQFT

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STMicroelectronics

NFC / RFID TAG & READER IC, SPI, FELICA, ISO 18092/14443A/14443B/15693, NFC FORUM, 32 PINS, QFN

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Description Specifications Series Pricing CAD Documents

Description

General part information

ST25 Series

The ST25TB04K is a contactless memory, powered by an externally transmitted radio wave. It contains a 4096-bit user EEPROM. The memory is organized as 16 blocks of 32 bits. The ST25TB04K is accessed via the 13.56 MHz carrier. Incoming data are demodulated and decoded from the received amplitude shift keying (ASK) modulation signal and outgoing data are generated by load variation using bit phase shift keying (BPSK) coding of a 847 kHz sub-carrier. The received ASK wave is 10% modulated. The data transfer rate between the ST25TB04K and the reader is 106 kbit/s in both reception and emission modes.

The ST25TB04K follows the ISO 14443 - 2 Type B recommendation for the radio-frequency power and signal interface.

The ST25TB04K is specifically designed for short range applications that need re-usable products. The ST25TB04K includes an anticollision mechanism that allows it to detect and select tags present at the same time within range of the reader. The anticollision is based on a probabilistic scanning method using slot markers.

Technical Specifications

Parameters and characteristics for this part

Specification	ST25R3911B-AQFT

Frequency	13.56 MHz
Interface	SPI
Mounting Type	Surface Mount
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-40 °C
Package / Case	32-VFQFN Exposed Pad
Package Length	5 mm
Package Name	32-QFN
Package Width	5 mm
Standards	ISO 14443, NFC
Type	RFID Reader
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	2.4 V

ST25 Series

13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision fucntions

Part	Interface	Qualification	Mounting Type	Package / Case	Grade	Operating Temperature (Max)	Operating Temperature (Min)	Standards	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Frequency	Package Width	Package Name	Package Length	Type
STMicroelectronics ST25DV16KC-IE8C3	I2C	AEC-Q100	Surface Mount	8-UFDFN Exposed Pad	Automotive	105 °C	-40 °C	ISO 15693 NFC	5.5 V	1.8 V	13.56 MHz	3 mm	8-UFDFPN	2 mm	RFID Transponder
STMicroelectronics ST25DV16KC-IE6T3	I2C		Surface Mount			85 °C	-40 °C	ISO 15693 NFC	5.5 V	1.8 V	13.56 MHz	4.4 mm	8-TSSOP	0.173 in	RFID Transponder
STMicroelectronics ST25DV16KC-IE6C3	I2C	AEC-Q100	Surface Mount	8-UFDFN Exposed Pad	Automotive	85 °C	-40 °C	ISO 15693 NFC	5.5 V	1.8 V	13.56 MHz	3 mm	8-UFDFPN	2 mm	RFID Transponder
STMicroelectronics ST25DV16KC-IE6S3	I2C		Surface Mount			85 °C	-40 °C	ISO 15693 NFC	5.5 V	1.8 V	13.56 MHz	3.9 mm	8-SO 8-SOIC	0.154 in	RFID Transponder
STMicroelectronics ST25DV16KC-IE8T3	I2C		Surface Mount			125 °C	-40 °C	ISO 15693 NFC	5.5 V	1.8 V	13.56 MHz	4.4 mm	8-TSSOP	0.173 in	RFID Transponder