M24SR02-Y Dynamic NFC/RFID tag IC with 2-Kbit EEPROM, NFC Forum Type 4 Tag and I²C interface Data brief Package • 8-lead small-outline package (SO8) ECOPACK®2 SO8 (MN) TSSOP8 (DW) UFDFPN8 (MC) • TSSOP8 ECOPACK®2 • UFDFPN8 ECOPACK®2 Digital pad • GPO: configurable General Purpose Output • RF disable: activation/deactivation of RF commands Wafer (SB12I) Description Features The M24SR02-Y device is a dynamic NFC/RFID tag IC with a dual interface. It embeds an EEPROM memory. It can be operated from an I2C interface or by a 13.56 MHz RFID reader or an NFC phone. I2C interface • Two-wire I2C serial interface supports 1 MHz protocol • Single supply voltage: 2.7 V to 5.5 V The I2C interface uses a two-wire serial interface, consisting of a bidirectional data line and a clock line. It behaves as a slave in the I2C protocol. Contactless interface • NFC Forum Type 4 Tag The RF protocol is compatible with ISO/IEC 14443 Type A and NFC Forum Type 4 Tag. • ISO/IEC 14443 Type A • 106 Kbps data rate • Internal tuning capacitance: 25 pF Memory • 256-byte (2-kbit) EEPROM • Support of NDEF data structure • Data retention: 200 years • Endurance: 1 million erase-write cycles • Read up to 246 bytes in a single command • Write up to 246 bytes in a single command • 7 bytes unique identifier (UID) • 128 bits passwords protection January 2014 DocID025544 Rev 1 For further information contact your local STMicroelectronics sales office. 1/10 www.st.com 1 Contents M24SR02-Y Contents 1 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.1 Functional modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1.1 I2C mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1.2 Tag mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.1.3 Dual interface mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2 Part numbering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 3 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2/10 DocID025544 Rev 1 M24SR02-Y List of tables List of tables Table 1. Table 2. Table 3. Table 4. Signal names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Functional modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Ordering information scheme for packaged devices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Document revision history. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 DocID025544 Rev 1 3/10 3 List of figures M24SR02-Y List of figures Figure 1. Figure 2. 4/10 M24SR02-Y block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 8-pin package connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 DocID025544 Rev 1 M24SR02-Y 1 Functional description Functional description The M24SR02-Y device is a dynamic NFC/RFID tag that can be accessed either from the I2C or the RF interface. The RF and I2C host can read or write to the same memory, that is why only one host can communicate at a time with the M24SR02-Y. The management of the interface selection is controlled by the M24SR02-Y device itself. The RF interface is based on the ISO/IEC 14443 Type A standard. The M24SR02-Y is compatible with the NFC Forum Type 4 Tag specifications and supports all corresponding commands. The I2C interface uses a two-wire serial interface consisting of a bidirectional data line and a clock line. The devices carry a built-in 4-bit device type identifier code in accordance with the I²C bus definition. The device behaves as a slave in the I2C protocol. Figure 1 displays the block diagram of the M24SR02-Y device. Figure 1. M24SR02-Y block diagram 6XSSO\YROWDJH IRU,&LQWHUIDFH 5)LQWHUIDFH EDVHGRQ ,62,(& 7\SH$ VWDQGDUG 9&& $& $QDORJ)URQWHQG EDVHGRQ ,62,(& 7\SH$VWDQGDUG $& ,QWHUQDOWXQLQJ FDSDFLWDQFH 5) GLVDEOH 1)&)RUXP 7\SH7DJ SURWRFRO 6&/ 6'$ h/ΘƐLJƐƚĞŵ ĂƌĞĂ hƐĞƌŵĞŵŽƌLJ 'LJLWDOXQLW *32 ,&LQWHUIDFH 9±9 3RZHU PDQDJHPHQW XQLW 1)&B,& LQWHUIDFH *1' 069 DocID025544 Rev 1 5/10 Functional description M24SR02-Y Table 1. Signal names Signal name Function Direction SDA Serial data I/O SCL Serial clock Input AC0, AC1 Antenna coils - VCC Supply voltage - VSS Ground GPO - Interrupt output RF disable (1) Open drain output Disable the RF communication (2) Input 1. An external pull-up > 4.7 kΩ is required. 2. An external pull-down is required when the voltage on Vcc is above its POR level. Figure 2. 8-pin package connections 5)GLVDEOH 9&& $& *32 $& 6&/ 966 6'$ 069 1. See Package mechanical data section for package dimensions, and how to identify pin 1. 1.1 Functional modes The M24SR02-Y has two functional modes available. The difference between the modes lies in the power supply source (see Table 2). Table 2. Functional modes Modes 1.1.1 Supply source Comments I2C mode Vcc The I2C interface is available Tag mode RF field only The I2C interface is disconnected Dual interface mode RF field or Vcc Both I2C and RF interfaces are available I2C mode M24SR02-Y is powered by VCC. The I2C interface is connected to the M24SR02-Y. The I2C host can communicate with the M24SR02-Y device. 1.1.2 Tag mode The M24SR02-Y is supplied by the RF field and can communicate with an RF host (RFID reader or an NFC phone). The User memory can only be accessed by the RF commands. 6/10 DocID025544 Rev 1 M24SR02-Y 1.1.3 Functional description Dual interface mode Both interfaces, RF and I2C, are connected to the M24SR02-Y and both RF or I2C host can communicate with the M24SR02-Y device. The power supply and the access management are carried out by the M24SR02-Y itself. For further details, please refer to the token mechanism chapter. DocID025544 Rev 1 7/10 Part numbering 2 M24SR02-Y Part numbering Table 3. Ordering information scheme for packaged devices Example: M24 SR Device type M24 = I2C interface device Device feature SR = Short range Memory size 02 = memory size in Kbits Voltage range Y = 2.7 to 5.5 V Package MN = SO8N DW = TSSOP8 MC = UFDFPN8 SB12I = 120 μm ± 15 μm bumped and sawn inkless wafer on 8-inch frame Device grade 6 = industrial: device tested with standard test flow over –40 to 85 °C (No parameter for SB12I) Option T = Tape and reel packing (No parameter for SB12I) Capacitance /2 = 25 pF 8/10 DocID025544 Rev 1 02- Y MN 6 T /2 M24SR02-Y 3 Revision history Revision history Table 4. Document revision history Date Revision 24-Jan-2014 1 Changes Initial release. DocID025544 Rev 1 9/10 M24SR02-Y Please Read Carefully: Information in this document is provided solely in connection with ST products. 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