Datasheet for ST models including: M24SR Series, Dynamic NFC Tags

M24SR product presentation

ST25 marketing team


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m24sr product presentation
M24SR series dynamic NFC tags
MMY division

Smart Things

Main M24SR market segments

Smart Home

Smart Industry

Consumer, wearable, healthcare & wellness

Home appliance & automation, home gateway

Networking, lighting
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Seamless user interface simplicity
· Device control with a mobile phone Servicing & maintenance
· Download records history · Update parameters even if device is off

Key use cases
Wireless pairing "tap & connect"

· Ease Bluetooth or WiFi by simple tap Convenient data logging

· Data download

· Data tracking

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NFC phones RFID readers

Typical NFC type 4 range

ISO14443 (106kb/s)
Up to 5 cm / 2in.

M24SR
EEPROM

Up to 10cm / 4in. ISO14443 (106kb/s)
Modulation more simple (ISO 15693), data rate more limited & consume less so better range

M24SR
EEPROM
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M24SR product
· The M24SR chip belongs to ST25 NFC / RFID Tags & Readers family. · The M24SR product is Dynamic Tag based on ISO14443 standard with
following main features:
· ISO14443-A NFC Forum Type 4 RF interface · I²C 1MHz interface ­ 2.4V to 5.5V · Up to 64-kbit EEPROM memory · 128-bit password for data protection · 200 years data retention & 1Mcycles erase/write · Configurable General Purpose Output signal for MCU wake-up · RF disable feature
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M24SR02 / 04 / 16 / 64

RF

ISO

EEPROM

I²C

Tag

14443-A 2K / 4K / 16K / 64K-bit

NFC Type 4

NDEF

2.4/5.5V

106kb/s

128-bit password

1MHz

Digital output (GPO) RF disable

SO8

TSSOP8

SBN12
Die form, sawn and Bumped inkless 8" wafer, 120µm/ thickness

FPN8

M24SR dynamic NFC tag
Use cases
· Convenient wireless pairing (Bluetooth, Wi-Fi) · Dynamic data exchange with NFC phone
· User settings update, information log download,...
Key Features
· ISO14443-A Type A and NFC Type 4 · High speed operations (106kb/s) · NDEF memory format · Data protection thanks to 128-bit password
Key Benefits
· Easy of use (limited BOM, 8-pin package) · Flexible interrupt pin (configurable GPO) · 200 years data retention, 1M cycles erase/write
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Key features

Contactless Interface RF range RF speed
Single supply voltage Serial Interface Extra features
Memory format
Memory size Data retention Erase / Write cycles Data protection
Temperature range
Package

M24SR series
ISO14443-A NFC Type 4
Short range, up to 10cm 106kbps
2.4V (2.7V) to 5.5V I2C @1MHz
MCU wake-up & RF Disable EEPROM
preformatted NDEF file 2 / 4 / 16 / 64-kbit 200-year at +55°C 1M cycles at +25°C Password 128-bit -40°C to +85°C
-40°C to +105°C for I²C operation for M24SR64 SO8 / TSSOP8 / DFN8 / SBN12 *

* SBN12: Die form, sawn and Bumped wafer, 120µm thickness, inkless 8" wafer

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Memory organization

· The memory contains three types of file:
· NDEF file, CC file and System file

One NDEF file
One CC file (1)
(Capability Container)
One System file (2)

Wifi pairing record One text record ... One URL record

M24SR memory
(1) The CC file gives some information about the M24SR and the NDEF file (access conditions etc.). This file is a read-only file for the RF or I²C host and cannot be modified by issuing a write command. (2) The system file is a ST proprietary file. It can be read by the RF or I²C host and written by the I²C host.
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· Data protection thanks to a password. Why ?
· To lock an NDEF file
· Password size: 128 bits
· 3.4 1038 possibilities to find the right password
· 2 passwords,
· One for read access · One for write access
· Possible to lock permanently in read or write access
· 2 bytes in the CC file are used to define the Read and Write access rights to the NDEF file.

Data protection

Unlocked

Read or

Locked

Write not

autorized
Permanent

Lock

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GPO feature

· The configurable output signal (GPO) pad is mainly to wake-up or inform a micro-controller about one event. It's an open drain pad so external pull-up resistor to Vcc is required.

· 7 possible configurations
· Session Open

· An RF or I²C session ongoing

· MIP (NDEF Message updating In Progress)

· RF host writing an NDEF length different from 0x0000. This mode can be used to detect when the RF host changes the NDEF message as defined by NFC Forum

· WIP (Writing In Progress)

· M24SR is executing a writing operation
· INT (interrupt)

RF disable 1

8 Vcc

· RF or I²C host can force M24SR to send a negative pulse on the pin
· State mode

AC0 2 AC1 3

7 GPO 6 SCL

· RF or I²C host can control the state of the GPO pad during the RF session
· I²C ready response

Vss 4

5 SDA

· An I²C response is ready to be read by the I²C host
· RF busy

· RF host is communicating with M24SR
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I²C interface

· I²C interface is typically used for connecting M24SR to a microcontroller. It features:
· Two-wires I²C serial interface supports 1MHz protocol Single supply voltage
· 2.4V to 5.5V for grade G (M24SR04) · 2.7V to 5.5V for grade Y (M24SR02/04/16/64)

· I²C uses only two bidirectional open-drain lines
· Serial Clock (SCL)
· Input signal used to strobe all data in and out of the device · Pull-up resistor must be connected from SCL to Vcc
· Serial Data (SDA)
· Bidirectional signal is used to transfer data in or out of the device · Pull-up resistor must be connected from SDA to Vcc

RF disable

1

AC0

2

AC1

3

Vss

4

8 Vcc 7 GPO 6 SCL 5 SDA

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RF tuning capacitance

· The internal RF tuning capacitance is 25pF which is allowing antenna design from Class 1 to Class 6 form factor.

Standard Main carrier frequency Data sub-carrier frequency Optimal frequency tuning Internal capacitor (measured at 0.5V) Recommended internal capacitor value
for antenna design

M24SR ISO14443 13.56MHz + 848kHz 14MHz ­ 14.4MHz
25pF
27pF

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M24SR packages

· SO8N Package ­ 4.9 x 3.9 mm

RF disable AC0 AC1 Vss

1

8

2 3

SO8

7 6

4

5

Vcc
GPO
SCL SDA

· TSSOP8 Package - 3.0 x 4.4 mm

RF disable AC0 AC1 Vss

1

8

2 3

TSSOP8

7 6

4

5

Vcc GPO SCL SDA

· UFDFPN8 Package - 2 x 3 mm

Vout 1

8 Vcc

1

8

AC0 AC1

2 3

UFDFPN8

7 6

RF WIP / BUSY
SCL

2 3

7 6

Vss 4

5 SDA

4

5

Top view

Bottom view

· Sawn & Bumped for wafer
SBN12 *
* : sawn and bumped inkless 8" wafer,
120µm thickness (for M24LR04E and 64E)

Bump

Signal name

1

RF disable

2

AC0

3

AC1

4

Vss

5

SDA

6

SCL

7

GPO

8

Vcc

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M24SR rich eco-system

· Discovery kits based on STM32 MCU
· STM32 Nucleo boards ecosystem
· STM32Cube software ecosystem

· Antenna e-design tool · Schematic and BOM · Gerber files

· Android ST25 NFC tap app
· PC software tool
· MCU drivers firmware

· Documentation · e2e community · Webinar / MOOC · Training

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M24SR part numbers

M24SR
Dynamic NFC Type 4 Tag ISO14443-A I2C IF + GPO + RF disable
+ Extended Temperature

Package
SO8 TSSOP8 UFDFPN8 SBN12
SO8 TSSOP8

2k-bit
M24SR02-YMN6T/2 M24SR02-YDW6T/2 M24SR02-YMC6T/2 M24SR02-YSG12l/2

4k-bit
M24SR04-YMN6T/2 M24SR04-YDW6T/2 M24SR04-YMC6T/2 M24SR04-GSG12l/2

16k-bit
M24SR16-YMN6T/2 M24SR16-YDW6T/2 M24SR16-YMC6T/2

64k-bit
M24SR64-YMN6T/2 M24SR64-YDW6T/2 M24SR64-YMC6T/2 M24SR64-YSG12l/2 M24SR64-YMN8T/2 M24SR64-YDW8T/2

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Evaluation boards

M24SR evaluation boards

M24SR-DISCO-PREM
M24SR discovery kit
· M24SR64 Dynamic NFC Tag IC · 30x30mm 5 turns double layer antenna · STM32F1 MCU · LCD Color display + Joystick + LEDs · USB & JTAG connectors · BT / Audio module with audio headset

X-NUCLEO-NFC01A1
M24SR Nucleo Shield
· M24SR64 Dynamic NFC Tag IC · 31x30mm 5 turns double layer antenna · Compatible with STM32 Nucleo boards · I2C interface to MCU through ArduinoTM
connector · Open drain output for MCU wake-up

ANT7-T-M24SR64
M24SR Tiny antenna
· M24SR64 Dynamic NFC Tag IC · 14x14mm dual layer antenna · I2C test points to connect to MCU · GPO open drain user configurable output to
indicate an ongoing RF operation
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· M24SR evaluation and demonstration board
· M24SR64 dynamic NFC tag IC · 30x30mm 5 turns double layer antenna · STM32F1 micro-controller · LCD color display + Joystick + LEDs · USB & JTAG connectors · BT / audio module with audio headset
· Reference: M24SR-DISCO-PREM

M24SR discovery kit

http://www.st.com/web/en/catalog/tools/PF259659 18

· M24SR Nucleo board for fast prototyping
· M24SR64 dynamic NFC tag IC · 31x30mm 5 turns double layer antenna · Compatible with STM32 Nucleo boards · I2C interface to MCU through Arduino connector · Open drain output for MCU wake-up · Powered through the Arduino UNO R3 connector · 3 general purpose color LEDs
· Reference: X-NUCLEO-NFC01A1

M24SR Nucleo shield

http://www.st.com/web/en/catalog/tools/PF260759 19

ANT7-T-M24SR antenna board
· ANT7-T-M24SR antenna reference board is a ready-to-use PCB that features a M24SR64-Y dynamic NFC tag.
· M24SR64-Y dynamic NFC tag · 14 mm x 14 mm, 13.56 MHz dual layer etched antenna · I2C test points to connect to MCU · Open drain user configurable output to indicate an ongoing RF operation (GPO) · Digital RF disable input (DIS)
· Reference: ANT7-T-M24SR
http://www.st.com/content/st_com/en/products/evaluation-tools/product-evaluation-tools/st25-nfc-rfid-eval-boards/st25-nfc-rfid-eval-boards/ant7-t-m24sr64.html Link does not work
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Solutions for NFC / RFID Tags & Readers
ST25 SIMPLY MORE CONNECTED

Thank you
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