RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 DYNAMIC NFC INTERFACE TRANSPONDER FEATURES 1 • • 2 • NFC Tag Type 4 ISO14443B Compliant 13.56-MHz RF Interface Supports up to 848 kbps SPI or I2C Interface to Write and Read NDEF Messages to Internal SRAM • • • 3kB SRAM for NDEF Messages Automatic Checking of NDEF Structure Interrupt Register and Output Pin to Indicate NDEF Read or Write Completion DESCRIPTION The Texas Instruments Dynamic NFC Interface Transponder RF430CL330H is a NFC Tag Type 4 device that combines a wireless NFC interface and a wired SPI or I2C interface to connect the device to a host. The NDEF message in the SRAM can be written and read from the integrated SPI or I2C serial communication interface and can also be accessed and updated wirelessly via the integrated ISO14443B-compliant RF interface that supports up to 848 kbps. This allows NFC connection handover for an alternative carrier like Bluetooth™, Bluetooth Low Energy (BLE), and Wi-Fi as an easy and intuitive pairing process or authentication process with only a tap. As a general NFC interface, the RF430CL330H enables end equipments to communicate with the fast-growing infrastructure of NFC-enabled smart phones, tablets, and notebooks. Microcontroller I2C or SPI RF430 NFC Tag NFC Reader INTO Figure 1. Typical Application Table 1. Ordering Information (1) TA -40ºC to 85ºC (1) (2) PACKAGED DEVICES (2) PLASTIC 14-PIN TSSOP (PW) RF430CL330HCPWR For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/packaging. 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Bluetooth is a trademark of Bluetooth SIG, Inc. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com Functional Block Diagram RST VCC NDEF Memory (SRAM) VSS VCORE SCL/SO SDA/SI I2C/SPI SCK Interface ANT1 Processing Unit (MSP430based) ISO 14443B RF Interface ANT2 SCMS/CS E0 E1 E2 INTO PW PACKAGE (TOP VIEW) 2 Submit Documentation Feedback VCC 1 14 VSS ANT1 2 13 VCORE ANT2 3 12 SI/SDA RST 4 11 SO/SCL E0 5 10 SCK E1 6 9 SCMS/CS E2 7 8 INTO Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 Table 2. Terminal Functions TERMINAL NAME I/O (1) DESCRIPTION NO. VCC 1 PWR ANT1 2 RF Antenna input 1 ANT2 3 RF Antenna input 2 RST 4 I Reset input (active low) (2) E0 (TMS) 5 I I2C address select 0 SPI mode select 0 (JTAG test mode select (3)) E1 (TDO) 6 I (O) I2C address select 1 SPI mode select 1 (JTAG test data output (3)) E2 (TDI) 7 I I2C address select 2 (4) (JTAG test data in (3)) INTO (TCK) 8 O Interrupt output (JTAG test clock (3)) SCMS/ CS 9 I Serial Communication Mode Select (during device initialization) (5) Chip select (in SPI mode) SCK 10 I SPI clock input (SPI mode) SO/SCL 11 I/O SPI slave out (SPI mode) I2C clock (I2C mode) SI/SDA 12 I/O SPI slave in (SPI mode) I2C data (I2C mode) VCORE 13 PWR Regulated core supply voltage VSS 14 PWR Ground supply (1) (2) (3) (4) (5) 3.3-V power supply I = Input, O = Output, PWR = Power, RF = RF Antenna With integrated pullup. This device does not provide JTAG-compliant boundary scan test. Tie low in SPI mode to avoid floating inputs. Selects I2C or SPI mode during power-up and initialization (see and ). Tie SCMS/CS low to select I2C mode. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com VCC C1 C2 VCC Antenna CTune ANT1 ANT2 External Reset (optional) RST E0 I2C Address Select I2C Address Select E1 I2C Address Select E2 14 1 2 13 3 12 4 11 5 10 6 9 7 8 VSS CCore VCORE SI/SDA SDA SO/SCL SCL SCK n/a for I2C SCMS/CS select I2C INTO Interrupt Output Figure 2. Example Application Diagram (I2C Operation) VCC C1 C2 VCC Antenna CTune ANT1 ANT2 External Reset (optional) RST SPI Mode Select E0 SPI Mode Select E1 n/a for SPI E2 1 14 2 13 3 12 4 11 5 10 6 9 7 8 VSS CCore VCORE SI/SDA SI SO/SCL SO SCK SCK SCMS/CS INTO CS Interrupt Output Figure 3. Example Application Diagram (SPI Operation) 4 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 Detailed Description Serial Communication Interface A "dual-mode" serial communication interface supports either SPI or I2C communication. The serial interface allows writing and reading the internal NDEF message memory as well as configuring the device operation. SPI or I2C Mode Selection The selection between I2C or SPI mode takes place during the power-up and initialization phase of the device based on the input level at pin SCMS/CS (see Table 3). Table 3. SPI or I2C Mode Selection Input Level at SCMS/CS During Initialization Selected Serial Interface 0 I2C 1 SPI During initialization, an integrated pullup resistor pulls SCMS/CS high, which makes SPI the default interface. To enable I2C, this pin must be tied low externally. The pullup resistor is disabled after initialization to avoid any current through the resistor during normal operation. In SPI mode, the pin reverts to its CS functionality after initialization. Communication Protocol The tag is programmed and controlled by writing data into and reading data from the address map shown in Table 4 via the serial interface (SPI or I2C). Table 4. User Address Map Range Registers Reserved NDEF Address Size Description 0xFFFE 2B Control Register 0xFFFC 2B Status Register 0xFFFA 2B Interrupt Enable 0xFFF8 2B Interrupt Flags 0xFFF6 2B CRC Result (16-bit CCITT) 0xFFF4 2B CRC Length 0xFFF2 2B CRC Start Address 0xFFF0 2B Communication Watchdog Control Register 0xFFEE 2B Version 0xFFEC 2B Reserved 0xFFEA 2B Reserved 0xFFE8 2B Reserved 0xFFE6 2B Reserved 0xFFE4 2B Reserved 0xFFE2 2B Reserved 0xFFE0 2B Reserved 0x4000 to 0xFFDF Reserved 0x0C00 to 0x3FFF 13kB Reserved (for example, future extension of NDEF Application Memory size) 0x0000 to 0x0BFF 3kB NDEF Application Memory NOTE Crossing Range Boundaries Crossing range boundaries causes writes to be ignored and reads to return undefined data. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com I2C Protocol A command is always initiated by the master by addressing the device using the specified I2C device address. The device address is a 7-bit I2C address. The upper four bits are hard-coded, and the lower three bits are programmable by the input pins E0 through E2. Table 5. I2C Device Address Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 1 0 1 E2 E1 E0 MSB LSB Device Address WRITE START To write data, the device is addressed using the specified I2C device address with R/W = 0, followed by the upper 8 bits of the first address to be written and the lower 8 bits of that address. Next (without a repeated start), the data to be written starting at the specified address is received. With each data byte received, the address is automatically incremented by 1. The write access is terminated by the STOP condition on the I2C bus. Address Bits 15-8 Address Bits 7-0 LSB ACK LSB ACK MSB MSB LSB R/W ACK MSB SDA Data @ Addr + 0 Data @ Addr + 1 Data @ Addr + n STOP Driven by: Master Slave (NFC Tag) LSB ACK MSB LSB ACK LSB ACK MSB MSB SDA Driven by: Master Slave (NFC Tag) Figure 4. I2C Write Access To read data, the device is addressed using the specified I2C device address with R/W = 0, followed by the upper 8 bits of the first address to be written and then the lower 8 bits of that address. Next, a repeated start condition is expected with the I2C device address and R/W = 1. The device then transmit data starting at the specified address until a non-acknowledgment and a STOP condition is received. 6 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H Address Bits 7-0 Device Address READ Address Bits 15-8 START Device Address WRITE SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 START www.ti.com LSB R/W ACK MSB LSB ACK LSB ACK MSB LSB R/W ACK MSB MSB SDA Data @ Addr + 0 Data @ Addr + 1 Data @ Addr + n STOP Driven by: Master Slave (NFC Tag) Driven by: Master Slave (NFC Tag) LSB NO ACK MSB LSB ACK LSB ACK MSB MSB SDA Figure 5. I2C Read Access BIP-8 Communication Mode With I2C The BIP-8 communication mode is enabled by setting the BIP-8 bit in the General Control register. All communication after setting this bit uses the following conventions with exactly 2 address bytes (16-bit address) and 2 data bytes (16-bit data). Table 6. Write Access Master Slave Address Bits 15 to 8 Address Bits 7 to 0 Data at Addr + 0 Data at Addr + 1 BIP-8 n/a n/a n/a n/a n/a The Bit-Interleaved Parity (BIP-8) is calculated using 16-bit address and 16-bit data. If the received BIP-8 does not match with received data no write will be performed. (The BIP-8 calculation does not include the I2C device address). Table 7. Read Access Master Slave Address Bits 15 to 8 Address Bits 7 to 0 n/a n/a n/a n/a n/a Data at Addr + 0 Data at Addr + 1 BIP-8 For read access, the Bit-Interleaved Parity (BIP-8) is calculated using the received 16-bit address and the 2 transmitted data bytes, and it is transmitted back to the master. The BIP-8 does not include the device address. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 7 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com SPI Protocol The SPI communication mode (SCK idle state and clock phase) is selected by tying E0 and E1 to VSS or VCC according to Table 8. Table 8. SPI Mode Selection E1 E0 0 0 SPI Mode 0 with CPOL = 0 and CPHA = 0 SCK idle state: 0 SI capture starts on the first edge: SI data is captured on the rising edge, and SO data is propagated on the falling edge. 0 1 SPI Mode 1 with CPOL = 0 and CPHA = 1 SCK idle state: 0 SI capture starts on the second edge: SI data is captured on the falling edge, and SO data is propagated on the rising edge. 0 SPI Mode 2 with CPOL = 1 and CPHA = 0 SCK idle state: 1 SI capture starts on the first edge: SI data is captured on the falling edge, and SO data is propagated on the rising edge. 1 SPI Mode 3 with CPOL = 1 and CPHA = 1 SCK idle state: 1 SI capture starts on the second edge: SI data is captured on the rising edge, and SO data is propagated on the falling edge. 1 1 SPI Mode An SPI communication is always initiated by the master by pulling the CS pin low. To write data into the device, this is followed by the master sending a write command (0x02) followed by the upper 8 bits of the first address to be written and then the lower 8 bits of that address. Next, the data to be written starting at the specified address is received. With each data byte received, the address is automatically incremented by 1. The write access is terminated by pulling the CS pin high. 8 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 CS SCK (Mode 0) SCK (Mode 1) SCK (Mode 2) SCK (Mode 3) Command: Write Address Bits 15-8 Address Bits 7-0 LSB LSB MSB LSB MSB MSB SI SO Hi-Z CS SCK (Mode 0) SCK (Mode 1) SCK (Mode 2) SCK (Mode 3) Data @ Addr + n Data @ Addr + 1 Data @ Addr + 0 LSB MSB LSB LSB MSB MSB SI Hi-Z SO Figure 6. SPI Write Access To read data from the device, pulling the CS pin low is followed by the master sending a read command (0x03 or 0x0B) followed by the upper 8 bits of the first address to be written, the lower 8 bits of that address and a dummy byte. The device responds with the data that is read starting at the specified address until the CS pin is pulled high. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com CS SCK (Mode 0) SCK (Mode 1) SCK (Mode 2) SCK (Mode 3) Command: Read (Fast Read) Address Bits 15-8 Dummy Address Bits 7-0 LSB LSB MSB LSB MSB LSB MSB MSB SI SO Hi-Z CS SCK (Mode 0) SCK (Mode 1) SCK (Mode 2) SCK (Mode 3) SI Data @ Addr + n Data @ Addr + 1 Data @ Addr + 0 SO LSB MSB LSB LSB MSB MSB Hi-Z Figure 7. SPI Read Access (Command: 0x03 or 0x0B) Commands other than write (0x02) and read (0x03 or 0x0B) are ignored. There is no difference in using the read command 0x03 or 0x0B. 10 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 BIP-8 Communication Mode With SPI The BIP-8 communication mode is enabled by setting the BIP-8 bit in the General Control register. All communication after setting this bit uses the following conventions with exactly 2 address bytes (16-bit address) and 2 data bytes (16-bit data). Table 9. Write Access SI Command: Write Address Bits 15 to 8 Address Bits 7 to 0 Data at Addr + 0 Data at Addr + 1 BIP-8 SO n/a n/a n/a n/a n/a n/a The Bit-Interleaved Parity (BIP-8) is calculated using 16-bit address and 16-bit data. If the received BIP-8 does not match with received data no write will be performed. (The BIP-8 calculation does not include the writecommand byte.) Table 10. Read Access SI Command: Read Address Bits 15 to 8 Address Bits 7 to 0 Dummy Byte SO n/a n/a n/a n/a n/a n/a Data at Addr + 0 Data at Addr + 1 n/a BIP-8 For read access the Bit-Interleaved Parity (BIP-8) is calculated using the received 16-bit address, the received dummy byte and the 2 transmitted data bytes and transmitted back to the master. It does not include the readcommand byte. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 11 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com Registers NOTE Endianness All 16-bit registers are little-endian: the least significant byte with bits 7-0 is at the lowest address (and this address is always even). The most significant byte with bits 15-8 is at the highest address (always odd). General Control Register Table 11. General Control Register Addr: 0xFFFF Addr: 0xFFFE 15 14 13 12 11 10 9 8 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 7 6 5 4 3 2 1 0 Reserved Standby Enable BIP-8 INTO Drive INTO High Enable INT Enable RF SW-Reset Table 12. General Control Register Description 12 Bit Field Type Reset Description 0 SW-Reset W 0 0b = Always reads 0. 1b = Resets the device to default settings and clears memory. The serial communication is restored after tReady, and the register settings and NDEF data memory must be restored afterward. 1 Enable RF R/W 0 Global enable of RF interface. The RF interface should be disabled when writing to the NDEF application memory. Enabling the RF interface triggers a basic check of the NDEF structure. If this check fails, the RF interface remains disabled and the NDEF Error interrupt flag is set. When the RF interface is enabled, writes using the serial interface (except to disable the RF interface) are discouraged to avoid any interference with RF communication. 0b = RF interface disabled 1b = RF interface enabled 2 Enable INT R/W 0 Global Interrupt Output Enable 0b = Interrupt output disabled. The INTO pin is Hi-Z. 1b = Interrupt output enabled. The INTO pin signals any enabled interrupt according to the INTO High and INTO Drive bits. 3 INTO High R/W 0 Interrupt Output pin INTO Configuration 0b = Interrupts are signaled with an active low 1b = Interrupts are signaled with an active high 4 INTO Drive R/W 0 Interrupt Output pin INTO Configuration 0b = Pin is Hi-Z if there is no pending interrupt. Application provides an external pullup resistor if bit 3 (INTO Active High) = 0. Application provides an external pulldown resistor if bit 3 (INTO Active High) = 1. 1b = Pin is actively driven high or low if there is no pending interrupt. It is driven high if bit 3 (INTO Active High) = 0. It is driven low if bit 3 (INTO Active High) = 1. 5 BIP-8 R/W 0 Enables BIP-8 communication mode (bit interleaved parity). If BIP-8 is enabled, a separate running tally is kept of the parity (that is, the number of ones that occur) for every bit position in the bytes included in the BIP-8 calculation. The corresponding bit position of the BIP-8 byte is set to 1 if the parity is currently odd and is set to 0 if the parity is even – resulting in an overall even parity for each bit position including the BIP-8 byte. All communication when this bit is set must follow the conventions defined in the BIP-8 communication mode sections for I2C and SPI. 0b = BIP-8 communication mode disabled 1b = BIP-8 communication mode enabled Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 Table 12. General Control Register Description (continued) Bit Field Type Reset Description 6 Standby Enable R/W 0 Enables a low-power standby mode. The standby mode is entered if the RF interface is disabled, the communication watchdog is disabled, and no serial communication is ongoing. 0b = Standby mode disabled 1b = Standby mode enabled 7 Reserved R/W 0 8-15 Reserved R 0 Status Register Table 13. Status Register Addr: 0xFFFD Addr: 0xFFFC 15 14 13 12 11 10 9 8 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 7 6 5 4 3 2 1 0 Reserved Reserved Reserved Reserved Reserved RF Busy CRC Active NDEF Ready Table 14. Status Register Description Bit Field Type Reset Description 0 Ready R 0 0b = Device not ready to receive updates to the NDEF memory from the serial interface. 1b = Device ready. NDEF memory can be written by the serial interface. 1 CRC Active R 0 0b = No CRC calculation ongoing 1b = CRC calculation ongoing 2 RF Busy R 0 0b = No RF communication ongoing 1b = RF communication ongoing 3-15 Reserved R 0 Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 13 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com Interrupt Registers The interrupt enable register determines what interrupt events are signaled on the external output pin INTO. Setting any bits high in this register allows the corresponding events to trigger the interrupt signal. All enabled interrupt signals are ORed together and the result is signaled on the output pin INTO. Table 15. Interrupt Enable Register Addr: 0xFFFB Addr: 0xFFFA 15 14 13 12 11 10 9 8 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 7 6 5 4 3 2 1 0 BIP-8 Error Detected CRC Calculation Completed End of Write End of Read Reserved Generic Error Reserved NDEF Error Table 16. Interrupt Enable Register Description Bit Field Type Reset Description 0-15 Interrupt Enables R/W 0 Enable for the corresponding IRQ. All enabled interrupt signals are ORed together and the result is signaled on the output pin INTO. 0b = IRQ disabled 1b = IRQ enabled The interrupt flag register is used to report the status of any interrupts that are pending. Setting any bit high in this register acknowledges and clears the interrupt associated with the respective bit. Table 17. Interrupt Flag Register Addr: 0xFFF9 Addr: 0xFFF8 15 14 13 12 11 10 9 8 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 7 6 5 4 3 2 1 0 BIP-8 Error Detected CRC Calculation Completed End of Write End of Read Reserved Generic Error Reserved NDEF Error Table 18. Interrupt Flag Register Description Bit Field Type Reset 0-15 Interrupt Flags R/W 0 Description Flag pending IRQ. Read Access: 0b = No pending IRQ. 1b = Pending IRQ. Write Access: 0b = No change. 1b = Clear pending IRQ flag. Table 19. Interrupts Bit Field 0 Reserved 1 End of Read This IRQ occurs when the RF field is turned off by the reader after the reader has performed a read of the NDEF message. 2 End of Write This IRQ occurs when the RF field is turned off by the reader after the reader has performed a write into the NDEF message. 3 14 Description CRC Calculation Completed This IRQ occurs when a CRC calculation that is triggered by writing into the CRC registers is completed and the result can be read from the CRC result register (see CRC Registers). 4 BIP-8 Error Detected 5 NDEF Error 6 Reserved 7 Generic Error 8-15 Reserved This IRQ occurs when a BIP-8 error is detected (only if the BIP-8 communication mode is enabled). This IRQ occurs if an error is detected in the NDEF structure after an attempt to enable the RF interface. This IRQ occurs for any error that makes the device unreliable or non-operational. Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 CRC Registers Writing the CRC address and the CRC length registers initiates a 16-bit CRC calculation of the specified address range. The length is always assumed to be even (16-bit aligned). Writing the length register starts the CRC calculation. During the CRC calculation, the CRC active bit is set (=1). When the calculation is complete, the "CRC completion" interrupt flag is set and the result of the CRC calculation can be read from the CRC result register. It is recommended to perform a CRC calculation only when the RF interface is disabled (RF Enable = 0). Table 20. CRC Result Register Addr: 15 14 13 0xFFF7 Addr: 12 11 10 9 8 2 1 0 10 9 8 2 1 0 CRC CCITT Result (high byte) 7 6 5 0xFFF6 4 3 CRC CCITT Result (low byte) Table 21. CRC Result Register Description Bit Field Type Reset 0-15 CRC-CCITT Result R 0 Description CRC-CCITT Result Table 22. CRC Length Register Addr: 15 14 13 0xFFF5 Addr: 12 11 CRC Length (high byte) 7 6 5 0xFFF4 4 3 CRC Length (low byte) Table 23. CRC Length Register Description Bit Field Type Reset Description 0-15 CRC Length RW 0 CRC Length - always assumed to be even (Bit 0 = 0). Writing into high byte starts CRC calculation. Table 24. CRC Start Address Register Addr: 15 14 13 0xFFF3 Addr: 12 11 10 9 8 2 1 0 CRC Start Address (high byte) 7 6 5 0xFFF2 4 3 CRC Start Address (low byte) Table 25. CRC Start Address Register Description Bit Field Type Reset 0-15 CRC Start Address RW 0 Description CRC Start Address. Defines start address within NDEF application data memory. This address is always assumed to be even (bit 0 = 0). The CRC is calculated based on the CCITT polynomial initialized with 0xFFFF. CCITT polynomial: x16 + x12 + x5 + 1 Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 15 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com Communication Watchdog Register When the communication watchdog is enabled, it expects a write or read access within a specified period; otherwise, the watchdog resets the device. If the BIP-8 communication mode is enabled, the transfer must be valid to be accepted as a watchdog reset. Table 26. Communication Watchdog Register Addr: 0xFFF1 Addr: 0xFFF0 15 14 13 12 11 10 9 8 Reserved Reserved Reserved Reserved Reserved Reserved Reserved Reserved 3 2 1 7 6 5 4 Reserved Reserved Reserved Reserved Timeout Period Selection 0 Enable Table 27. Communication Watchdog Register Description Bit Field Type Reset 0 Enable R/W 0 0b = Communication Watchdog disabled 1b = Communication Watchdog enabled 1 Timeout Period Selection R/W 0 000b = 2 s ± 30% (1) 001b = 32 s ± 30% (1) 010b = 8.5 min ± 30% (1) 011b to 111b = Reserved 4-15 Reserved R 0 (1) Description This value is based on use of the integrated low-frequency oscillator with a frequency of 256 kHz ± 30%. Version Registers Provides version information about the implemented ROM code. Table 28. Version Register Addr: 15 14 13 12 0xFFEF Addr: 11 10 9 8 2 1 0 Software Version 7 6 5 0xFFEE 4 3 Software Identification Table 29. Version Register Description Bit Field Type 0-7 Software Identification R 0x01: RF430CL330H Firmware 8-15 Software Version R Software version 16 Submit Documentation Feedback Reset Description Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 NFC Type-4 Tag Functionality The device supports an ISO 14443B compliant transponder that operates according to the NFC Forum Tag Type-4 specification and supports the NFC Forum NDEF (NFC Data Exchange Format) requirements. Through the RF interface, the user can read and update the contents in the NDEF data memory. The contents in the NDEF data memory (stored in SRAM) are stored as long as power is maintained. NOTE This device does not have nonvolatile memory; therefore, the information stored in the NDEF data memory is lost when power is removed. This device does not support the peer-to-peer or reader/writer modes in the ISO18092/NFC Forum specification. All RF communication between an NFC forum device and this device is in the passive tag mode. The device responds by load modulation and is not considered an intentional radiator. This device is intended to be used in applications where the primary reader/writer is an NFC-enabled cell phone. The device enables data transfer to and from an NFC phone by RF to the host application that is enabled with the dual interface device. In this case, the host application can be considered the destination device, and the cell phone or other type of mobile device is treated as the end-point device. This device supports ISO14443-3, ISO 14443-4, and NFC Forum commands as described in the following sections. A high-level overview of the ISO14443B and NFC commands and responses are shown in Figure 8. 106-kbps, 212-kbps, 424-kbps, and 848-kbps data rates are supported. By default, the device reports only the capability to support 106-kbps, because some cell phones do not work correctly with the information that the device supports higher data rates. To enable higher data rates, a special sequence is required as described in Data Rate Settings . The ISO14443B command and response structure is detailed in ISO 14443-3, ISO 14443-4, and NFC Forum-TSDigital Protocol. The applicable ISO 7816-4 commands are detailed in NFC Forum-TS-Type-4-Tag_2.0. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 17 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 ( START HF field presented to Tag www.ti.com PCD ) PICC (RF430 NFC Tag) REQB ATQB ATTRIB ANSWER TO ATTRIB ISO14443-3 Type B Card Detection Procedure PCD PICC (RF430 NFC Tag) B2 A2 NFC Tag Type 4 Operations (ISO-DEP) NDEF Detection Procedure C2 02 WUPB ATQB ATTRIB ANSWER TO ATTRIB B2 A2 NDEF Tag Application Select, C-APDU (T4TOS, Section 5.4.2) A4, 04 NDEF Tag Capability Container Select, C-APDU (T4TOS, Section 5.4.3) A4, 0C, 0xE103 Capability Container Read Read Binary Command, C-APDU (T4TOS, Section 5.4.4) B0, Le = 0F NDEF Select Command, C-APDU (T4TOS, Section 5.4.5) A4, 0C, 0xE101 NDEF Read Procedure Read Binary Command, C-APDU (T4TOS, Section 5.4.6) B0, Le = 02 NDEF Select Command, C-APDU (T4TOS, Section 5.4.5) A4, 0C, 0xE101 NDEF Read Procedure Read Binary Command, C-APDU (T4TOS, Section 5.4.6) B0, Le = 2D SW1, SW2 SW1, SW2 Response, SW1, SW2 SW1, SW2 SW1, SW2 SW1, SW2 NDEF Message, SW1, SW2 B0, 2D, 02 Response, SW1, SW2 Deselect C2 02 NDEF Messaging completed Figure 8. Command and Response Exchange Flow 18 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 ISO 14443-3 Commands These commands use the character, frame format, and timing that are described in ISO 14443-3, clause 7.1. The following commands are used to manage communication: REQB and WUPB The REQB and WUPB Commands sent by the PCD are used to probe the field for PICCs of Type B. In addition, WUPB is used to wake up PICCs that are in the HALT state. The number of slots N is included in the command as a parameter to optimize the anticollision algorithm for a given application. Slot-MARKER After a REQB or WUPB Command, the PCD may send up to (N-1) Slot-MARKER Commands to define the start of each timeslot. Slot-MARKER Commands can be sent after the end of an ATQB message received by the PCD to mark the start of the next slot or earlier if no ATQB is received (no need to wait until the end of a slot, if this slot is known to be empty). ATTRIB The ATTRIB Command sent by the PCD includes information required to select a single PICC. A PICC receiving an ATTRIB Command with its identifier becomes selected and assigned to a dedicated channel. After being selected, this PICC only responds to commands defined in ISO/IEC 14443-4 that include its unique CID. HLTB The HLTB Command is used to set a PICC in HALT state and stop responding to a REQB. After answering to this command, the PICC ignores any commands except the WUPB. NFC Tag Type 4 Commands Select Selection of applications or files ReadBinary Read data from file UpdateBinary Update (erase and write) data to file Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 19 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com Data Rate Settings 106-kbps, 212-kbps, 424-kbps, and 848-kbps data rates are supported by the device. By default, the device reports only the capability to support 106-kbps, because some cell phones do not work correctly with the information that the device supports higher data rates. To enable higher data rates the sequence shown in Table 30 must be sent though the selected serial interface. Table 30. Data Rate Setting Sequence (1) Access Type Addr Bits 15 to 8 Addr Bits 7 to 0 Data 0 Data 1 1. Write Access 0xFF 0xE0 0x4E 0x00 2. Write Access 0xFF 0xFE 0x80 0x00 3. Write Access 0x2A 0x78 0xF7 (1) 0x00 4. Write Access 0x28 0x14 0x00 0x00 5. Write Access 0xFF 0xE0 0x00 0x00 Data Rate Capability according to Table 31. 0xF7: all data rates up to 847 kbps are supported. Table 31. Data Rate Capability Data Rata Capability Byte 20 Description b7 b6 b5 b4 b3 b2 b1 b0 0 0 0 0 0 0 0 0 PICC supports only 106-kbps in both directions (default). 1 x x x 0 x x x Same data rate from PCD to PICC and from PICC to PCD compulsory x x x 1 0 x x x PICC to PCD, data rate supported is 212 kbps x x 1 x 0 x x x PICC to PCD, data rate supported is 424 kbps x 1 x x 0 x x x PICC to PCD, data rate supported is 847 kbps x x x x 0 x x 1 PCD to PICC, data rate supported is 212 kbps x x x x 0 x 1 x PCD to PICC, data rate supported is 424 kbps x x x x 0 1 x x PCD to PICC, data rate supported is 847 kbps Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 NDEF Data Memory This device implements 3kB of SRAM memory that must be written with the NDEF Application data. Table 32 shows the mandatory structure. The data can be accessed through the RF interface only after the NDEF application memory is correctly initialized through the serial interface. While writing into the NDEF application memory, the RF interface must be disabled by clearing the Enable RF bit in the General Control register. After the NDEF application memory is properly initialized, the RF interface can be enabled be setting the Enable RF bit in the General Control register to 1. When the RF interface is enabled, the basic NDEF structure is checked for correctness. If an error in the structure is detected, the NDEF Error IRQ is triggered, and the RF interface remains disabled (the Enable RF bit in the General Control register is cleared to 0). If the NDEF application data must be modified through the serial interface after the RF interface is enabled, it is recommended to read the RF Busy bit in the Status register. If the RF interface is busy, defer disabling the RF interface until the RF transaction is completed (indicated by RF Busy bit = 0). Figure 9 shows the recommended flow how to control the access to the NDEF application memory. The address range for the NDEF application memory is 0x0000 to 0x0BFF. Table 32. NDEF Application Data (Mandatory) 2B - CCLen 1B - Mapping version 2B - MLe 2B - MLc NDEF Application Selectable by Name D2_7600_0085_0101h Capability Container Selectable by File ID = E103h = 1B - Tag = 04h 1B - Len = 06h 2B - File Identifier NDEF File Ctrl TLV 6B - Val 2B - Max file size The NDEF file control TLV is mandatory 1B - Read access 1B - Write access 2B - Len NDEF File Selectable by File ID xB - Binary NDEF file content = xxyyh yB - Unused if Len < Max file size in File Ctrl TLV Copyright © 2012–2013, Texas Instruments Incorporated Mandatory NDEF file Submit Documentation Feedback 21 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com Table 33. NDEF Application Data (Includes Proprietary Sections) 2B - CCLen 1B - Mapping version 2B - MLe 2B - MLc 1B - Tag = 04h 1B - Len = 06h 2B - File Identifier NDEF File Ctrl TLV 2B - Max file size 6B - Val The NDEF file control TLV is mandatory 1B - Read access 1B - Write access Capability Container Selectable by File ID = E103h Proprietary File Ctrl TLV (1) 1B - Tag = 05h 1B - Len = 06h 2B - File Identifier 2B - Max file size 6B - Val NDEF Application Selectable by Name D2_7600_0085_0101h 1B - Read access 1B - Write access ⋮ = 1B - Tag = 05h Zero or more proprietary file control TLVs 1B - Len = 06h 2B - File Identifier Proprietary File Ctrl TLV (N) 6B - Val 2B - Max file size 1B - Read access 1B - Write access 2B - Len NDEF File Selectable by File ID xB - Binary NDEF file content = xxyyh yB - Unused if Len < Max file size in File Ctrl TLV Mandatory NDEF file 2B - Len Proprietary File (1) Selectable by File ID xB - Binary proprietary file content = xxyyh yB - Unused if Len < Max file size in File Ctrl TLV Optional proprietary file ⋮ 2B - Len Proprietary File (N) Selectable by File ID xB - Binary proprietary file content = xxyyh yB - Unused if Len < Max file size in File Ctrl TLV 22 Submit Documentation Feedback Optional proprietary file Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 Initialize NDEF Application Memory (via serial interface) Enable RF = 1 RF Interface active (no modifications via serial interface) Modifications via serial interface required? No Yes Wait for ~1-2ms or End-of-Read/Write Interrupts RF Busy=0? No Yes Enable RF = 0 Modify NDEF Application Memory (via serial interface) Figure 9. Recommended NDEF Data Memory Flow Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 23 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com NDEF Error Check With the RF interface is enabled, the basic NDEF structure is automatically checked for correctness. If any of the following conditions are true, the error check fails, an NDEF error IRQ is triggered, and the RF interface remains disabled. • CCLEN less than 0x000F or greater than 0xFFFE. • MLe value is less than 0xF. • MLc is equal to zero. • TLV tag does not equal 0x4. • TLV length does not equal 0x6. • File ID equals 0, or 0xE102, or 0xE103, or 0x3F00, or 0x3FFF, or 0xFFFF. • Max NDEF size is less than 0x5 or greater than 0xFFFE. • Read access is greater than 0 and less than 0x80. • Write Access is greater than 0 and less than 0x80. Also the proprietary TLVs are checked. The check fails if any of the following conditions are true. • TLV tag does not equal 0x05. • TLV length does not equal 0x6. • File ID equals 0, or 0xE102, or 0xE103, or 0x3F00, or 0x3FFF, or 0xFFFF. • Max NDEF size is less than 0x5 or greater than 0xFFFE. • Read access is greater than 0 and less than 0x80. • Write Access is greater than 0 and less than 0x80. Typical Usage Scenario A typical usage scenario is as follows: 1. Write capability container and messages into the NDEF memory (starting from address 0) using the serial interface. 2. Enable interrupts (especially End of Read and End of Write). 3. Configure the interrupt pin INTO as needed and enable the RF interface. 4. Wait for interrupt signaled by INTO. 5. Disable RF interface (but keep INTO settings unchanged). 6. Read interrupt flag register to determine interrupt sources. 7. Clear interrupt flags. INTO returns to inactive state. 8. Read and modify NDEF memory as needed. 9. Enable RF interface again (keeping INTO settings unchanged) and continue with . References ISO/IEC 14443-1:2000, Part 1: Physical characteristics ISO/IEC 14443-2: 2001, Part 2: Radio frequency interface power and signal interface ISO/IEC 14443-3: 2001, Part 3: Initialization and anticollision ISO/IEC 14443-4: 2001, Part 4: Transmission protocols ISO/IEC 18092, NFC Communication Interface and Protocol-1 (NFCIP-1) ISO/IEC 21481, NFC Communication Interface Protocol-2 (NFCIP-2) NDEF NFC Forum Spec, NFC Data Exchange Format Specification 24 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 Absolute Maximum Ratings (1) (2) Voltage applied at VCC referenced to VSS (VAMR) -0.3 V to 4.1 V Voltage applied at VANT referenced to VSS (VAMR) Voltage applied to any pin (references to VSS) -0.3 V to 4.1 V -0.3 V to (VCC + 0.3 V) Diode current at any device pin Storage temperature range (1) (2) (3) ±2 mA (3) -40°C to 125°C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages are referenced to VSS. For soldering during board manufacturing, it is required to follow the current JEDEC J-STD-020 specification with peak reflow temperatures not higher than classified on the device label on the shipping boxes or reels. Recommended Operating Conditions Typical values are specified at VCC = 3.3 V and TA = 25°C (unless otherwise noted) VCC MIN NOM MAX Supply voltage during program execution no RF field present 3.0 3.3 3.6 V Supply voltage during program execution with RF field present 2.0 3.3 3.6 V 85 °C VSS Supply voltage (GND reference) TA Operating free-air temperature CVCC Capacitor on VCC (1) CVCORE (1) Capacitor on VCORE 0 -40 V 0.1 (1) 0.1 UNIT µF 0.47 1 NOM MAX µF Low ESR (equivalent series resistance) capacitor Recommended Operating Conditions, Resonant Circuit MIN fc Carrier frequency VANT_peak Antenna input voltage Z Impedance of LC circuit LRES Coil inductance CRES Resonance capacitance QT Tank quality factor (1) 13.56 MHz 3.6 6.5 UNIT V 15.5 kΩ 2.66 µH 51.8 – CIN (1) pF 20 Refer to RF143B, Recommended Operating Conditions. Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 25 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com Electrical Characteristics Supply Currents over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VCC MIN TYP MAX UNIT ICC(SPI) SPI, fSCK,MAX, SO = Open, Writing into NDEF memory 3.3 V 250 µA ICC(I2C) I2C, 400 kHz, Writing into NDEF memory 3.3 V 250 µA ICC(RF RF enabled, no RF field present 3.3 V 200 µA ICC(Inactive) Standby enable = 0, RF disabled, no serial communication 3.3V 40 µA ICC(Standby) Standby enable = 1, RF disabled, no serial communication 3.3 V 10 ΔICC(StrongRF) Additional current consumption with strong RF field present ICC(RF,lowVCC) Current drawn from VCC < 3.0 V with RF field present (passive operation) enabled) 45 µA 3.0 V to 3.6 V 160 µA 2.0 V to 3.0 V 0 µA Digital Inputs over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VCC MIN TYP MAX UNIT 0.3× VCC V VIL Low-level input voltage VIH High-level input voltage 0.7× VCC V VHYS Input hysteresis 0.1× VCC V IL High-impedance leakage current 50 nA RPU(RST) Integrated RST pullup resistor 20 35 50 kΩ RPU(CS) Integrated SCMS/CS pullup resistor (only active during initialization) 20 35 50 kΩ TYP MAX 3.3 V -50 Digital Outputs over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER VOL VOH 26 Output low voltage Output high voltage Submit Documentation Feedback TEST CONDITIONS VCC 3V 0.4 IOL = 3 mA 3.3 V 0.4 3.6 V 0.4 IOH = -3 mA MIN 3V 2.6 3.3 V 2.9 3.6 V 3.2 UNIT V V Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 Serial Communication Protocol Timings over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS tSPIvsI2C Time after power-up or reset until SCMS/CS is sampled for SPI or I2C decision. (1) tReady Time after power-up or reset until device is ready to communicate using SPI or I2C. (2) (1) (2) VCC MIN TYP 1 MAX UNIT 10 ms 20 ms The SCMS/CS pin is sampled after tSPIvsI2C(MIN) at the earliest and after tSPIvsI2C(MAX) at the latest. The device is ready to communicate after tReady(MAX) at the latest. I2C Interface over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 10) PARAMETER TEST CONDITIONS SCL clock frequency (with Master supporting clock stretching according to I2C standard, or when the device is not being addressed) fSCL SCL clock frequency (device being addressed by Master not supporting clock stretching) VCC MIN TYP MAX UNIT 3.3 V 0 400 kHz write 3.3 V 0 120 kHz read 3.3 V 0 100 kHz fSCL ≤ 100 kHz 4 tHD,STA Hold time (repeated) START tSU,STA Setup time for a repeated START tHD,DAT Data hold time 3.3 V 0 tSU,DAT Data setup time 3.3 V 250 ns tSU,STO Setup time for STOP 3.3 V 4 µs tSP Pulse duration of spikes suppressed by input filter 3.3 V 6.25 fSCL > 100 kHz fSCL ≤ 100 kHz fSCL > 100 kHz tHD,STA tSU,STA 3.3 V µs 0.6 4.7 3.3 V µs 0.6 ns 75 ns tHD,STA SDA 1/fSCL tSP SCL tSU,DAT tSU,STO tHD,DAT Figure 10. I2C Mode Timing Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 27 RF430CL330H SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 www.ti.com SPI Interface over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VCC write 3.3 V read 3.3 V MIN TYP MAX UNIT 0 100 kHz 0 110 kHz fSCK SCK clock frequency tHIGH,CS CS high time 3.3 V 50 µs tSU,CS CS setup time 3.3 V 25 µs tHD,CS CS hold time 3.3 V 100 ns tHIGH SCK high time 3.3 V 100 ns tLOW SCK low time 3.3 V 100 ns tSU,SI Data In (SI) setup time 3.3 V 50 ns tHD,SI Data In (SI) hold time 3.3 V 50 tVALID,SO Output (SO) valid 3.3 V 0 tHOLD,SO Output (SO) hold time 3.3 V 0 tHD,CS tSU,CS ns 50 ns ns tCS,HIGH CS 1/fSCK Mode 0 SCK Mode 3 tLOW tSU,SI tHIGH tHD,SI SI tVALID,SO SO Figure 11. SPI Mode Timing 28 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated RF430CL330H www.ti.com SLAS916A – NOVEMBER 2012 – REVISED JUNE 2013 RF143B, Recommended Operating Conditions over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS VDDH Antenna rectified voltage Peak voltage limited by antenna limiter IDDH Antenna load current RMS, without limiter current CIN Input capacitance ANT1 to ANT2, 2 V RMS MIN TYP MAX UNIT 3.0 3.3 3.6 V 100 µA 31.5 35 38.5 pF TYP MAX UNIT 106 848 kbps 30 % RF143B, ISO14443B ASK Demodulator over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER MIN DR10 Input signal data rate 10% downlink modulation, 7% to 30% ASK, ISO1443B m10 Modulation depth 10%, tested as defined in ISO10373 7 RF143B, ISO14443B Compliant Load Modulator over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER MIN fPICC Uplink subcarrier modulation frequency VA_MOD Modulated antenna voltage, VA_unmod = 2.3 V VSUB14 Uplink modulation subcarrier level, ISO14443B: H = 1.5 to 7.5 A/m TYP 0.2 MAX UNIT 1 MHz 0.5 V 22/H0.5 mV RF143B, Power Supply over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER VLIM Limiter clamping voltage ILIM,MAX Maximum limiter current TEST CONDITIONS MIN ILIM ≤ 70 mA RMS, f = 13.56 MHz 3.0 TYP MAX UNIT 3.6 Vpk 70 mA REVISION HISTORY REVISION COMMENTS SLAS916 Product Preview release SLAS916A Production Data release Copyright © 2012–2013, Texas Instruments Incorporated Submit Documentation Feedback 29 PACKAGE OPTION ADDENDUM www.ti.com 17-Jun-2013 PACKAGING INFORMATION Orderable Device Status (1) RF430CL330HCPWR ACTIVE Package Type Package Pins Package Drawing Qty TSSOP PW 14 2000 Eco Plan Lead/Ball Finish (2) Green (RoHS & no Sb/Br) MSL Peak Temp Op Temp (°C) Device Marking (3) CU NIPDAU Level-2-260C-1 YEAR (4/5) -40 to 85 CL330H (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. 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