STMicroelectronics

The ST25R3916B, ST25R3917B, and ST25R3919B (hereafter referred to as ST25R39xxB) are high-performance NFC universal devices. They support NFC initiator, NFC target, NFC reader, and NFC card emulation modes when applicable. Designed to be compliant with EMVCo 3.1a analog and digital, these devices are optimized for POS terminal applications. They enable fast EMVCo certification cycles, even under harsh conditions, with antenna around noisy LCD displays. The ST25R3916B device includes an advanced analog front end (AFE) and a highly integrated data framing system for ISO18092 passive and active initiator, ISO18092 passive and active target, NFC-A/B (ISO14443A/B) reader including higher bit rates, NFC-F (FeliCa™) reader, NFC-V (ISO15693) reader up to 53 kbps, and NFC-A / NFC-F card emulation. The ST25R3917B and ST25R3919B provides a reduced feature set compared to the ST25R3916B. Special stream and transparent modes of the AFE and framing system is used to implement other custom protocols in reader or card emulation mode. The ST25R39xxB feature high RF output power to directly drive antennas at high efficiency. The ST25R39xxB include additional features, making them incomparable for low-power applications. The presence of a card is detected by performing a measurement of the amplitude or phase of the antenna signal. They also contain a low power RC oscillator and wake-up timer to automatically wake-up the ST25R39xxB after a selected time period and check for a presence of a tag using one or more techniques of low power detection of card presence (phase or amplitude). The ST25R39xxB are designed to operate from a wide power supply range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C), and a wide peripheral IO voltage range (from 1.65 to 5.5 V). Due to this combination of high RF output power, low-power modes and wide supply range these devices are perfectly suited for infrastructure NFC applications.

The ST25R3918 is a multipurpose NFC transceiver supporting NFC reader, passive peer to peer functionality and NFC card emulation mode. This IC is optimized for IOT and other consumer or industrial applications where excellent analog performance is required. The ST25R3918 is also optimized to achieve good read ranges with low output power, even under noisy and harsh environments, using noise reduction receiver technology. This IC offers an advanced analog front end (AFE) and a highly integrated data framing system for NFC-A/B (ISO 14443A/B) reader, including higher bit rates. NFC-V (ISO 15693) reader is supported up to 53 kbps via streaming mode to read cards. ISO 18092 passive initiator and target and NFC-A / NFC-F card emulation are also available to ensure communication between end products. This enables device programming or simple NDEF data transfers to interact with Android™ phones, or to use Apple®App Clips. Special stream and transparent modes of the AFE and framing system can be used to implement other custom protocols in reader or card emulation mode. The ST25R3918 includes a low power wake-up mode to scan for the presence of a card by performing a measurement of the amplitude or phase of the antenna signal. It also contains a low power RC oscillator and wake-up timer to automatically trigger the device after the configured time period and check for a presence of a tag. The ST25R3918 is designed to operate from a wide power supply range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C), and a wide peripheral IO voltage range (from 1.65 to 5.5 V).

The ST25R3916B, ST25R3917B, and ST25R3919B (hereafter referred to as ST25R39xxB) are high-performance NFC universal devices. They support NFC initiator, NFC target, NFC reader, and NFC card emulation modes when applicable. Designed to be compliant with EMVCo 3.1a analog and digital, these devices are optimized for POS terminal applications. They enable fast EMVCo certification cycles, even under harsh conditions, with antenna around noisy LCD displays. The ST25R3916B device includes an advanced analog front end (AFE) and a highly integrated data framing system for ISO18092 passive and active initiator, ISO18092 passive and active target, NFC-A/B (ISO14443A/B) reader including higher bit rates, NFC-F (FeliCa™) reader, NFC-V (ISO15693) reader up to 53 kbps, and NFC-A / NFC-F card emulation. The ST25R3917B and ST25R3919B provides a reduced feature set compared to the ST25R3916B. Special stream and transparent modes of the AFE and framing system is used to implement other custom protocols in reader or card emulation mode. The ST25R39xxB feature high RF output power to directly drive antennas at high efficiency. The ST25R39xxB include additional features, making them incomparable for low-power applications. The presence of a card is detected by performing a measurement of the amplitude or phase of the antenna signal. They also contain a low power RC oscillator and wake-up timer to automatically wake-up the ST25R39xxB after a selected time period and check for a presence of a tag using one or more techniques of low power detection of card presence (phase or amplitude). The ST25R39xxB are designed to operate from a wide power supply range (2.6 to 5.5 V from -40 °C to +105 °C, 2.4 to 5.5 V from -20 °C to +105 °C), and a wide peripheral IO voltage range (from 1.65 to 5.5 V). Due to this combination of high RF output power, low-power modes and wide supply range these devices are perfectly suited for infrastructure NFC applications.

The ST25TA512B and ST25TA02KB devices are NFC tag ICs, with an optional general purpose output available on ST25TA02KB-D and ST25TA02KB-P. They embed an up to 2 -Kbit EEPROM, and can be operated from a 13.56 MHz RFID reader or an NFC phone. The ST25TA512B, ST25TA02KB, ST25TA02KB-D and ST25TA02KB-P devices are NFC Forum Type 4 Tags. They communicate using the ISO/IEC 14443 Type A protocol, and feature a digital signature generated by TruST25™ (a set of software and procedures) used to prove the origin of the chip in cloning detection.

The ST25TA16K device is an NFC tag IC embedding an EEPROM memory. It can be operated from a 13.56 MHz RFID reader or an NFC phone. The RF protocol is compatible with ISO/IEC 14443 Type A and NFC Forum Type 4 Tag.

The ST25TA64K device is an NFC tag IC embedding an EEPROM memory. It can be operated from a 13.56 MHz RFID reader or an NFC phone. The RF protocol is compatible with ISO/IEC 14443 Type A and NFC Forum Type 4 Tag.

The ST25TB512-AT is a contactless memory, powered by an externally transmitted radio wave. It contains a 512-bit user EEPROM. The memory is organized as 128 blocks of 32 bits. The ST25TB512-AT 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 ST25TB512-AT and the reader is 106 kbit/s in both reception and emission modes. The ST25TB512-AT follows the ISO 14443 - 2 Type B recommendation for the radio-frequency power and signal interface. The ST25TB512-AT is specifically designed for short range applications that need re-usable products. The ST25TB512-AT 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. The ST25TB512-AT contact-less EEPROM can be randomly read and written in block mode (each block containing 32 bits). The instruction set includes the following nine commands: The ST25TB512-AT memory is organized in three areas, as described in Table 1. The first area is a resettable OTP (one time programmable) area in which bits can only be switched from 1 to 0. Using a special command, it is possible to erase all bits of this area to 1. The second area provides two 32-bit binary counters which can only be decremented. The last area is the EEPROM memory. It is accessible by block of 32 bits and includes an auto-erase cycle during each Write_block command. Die floor plan and physical options related to the die assembly are described in Figure 2. For the option 1 of the die assembly, the CTUN (referenced in Table 2) can increase from 0.5pF to 1pF. The option 2 of the die assembly is showing a tripod which can be used for physical stability, having no impact on CTUN parameter.

ST25TN512 and ST25TN01K devices are NFC Forum Type 2 tag IC with TruST25 digital signature, Augmented NDEF, and privacy features. The RF interface is compliant with ISO/IEC 14443-2 and 14443-3 Type A standards, and NFC Forum Type 2 tag specification. Thanks to its internal tuning capacitance and harvesting of operating power from RF field provided by the NFC poller, it simply operates with an antenna and without additional component. The embedded electrically erasable programmable memory (EEPROM) can be written with a NDEF message conforming to NFC Forum specification offering native tap with all NFC-enabled phones. The Augmented NDEF feature allows the tag to answer dynamic NDEF message without modification of the EEPROM by the user. The TruST25 digital signature helps fighting against counterfeiting. The kill feature guarantees user privacy by permanently muting the tag with a simple software procedure. In this document, the term ST25TN refers interchangeably to ST25TN512 or ST25TN01K.

ST25TN512 and ST25TN01K devices are NFC Forum Type 2 tag IC with TruST25 digital signature, Augmented NDEF, and privacy features. The RF interface is compliant with ISO/IEC 14443-2 and 14443-3 Type A standards, and NFC Forum Type 2 tag specification. Thanks to its internal tuning capacitance and harvesting of operating power from RF field provided by the NFC poller, it simply operates with an antenna and without additional component. The embedded electrically erasable programmable memory (EEPROM) can be written with a NDEF message conforming to NFC Forum specification offering native tap with all NFC-enabled phones. The Augmented NDEF feature allows the tag to answer dynamic NDEF message without modification of the EEPROM by the user. The TruST25 digital signature helps fighting against counterfeiting. The kill feature guarantees user privacy by permanently muting the tag with a simple software procedure. In this document, the term ST25TN refers interchangeably to ST25TN512 or ST25TN01K.