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ST25 NFC / RFID solutions for automotive applications
Automotive: car, 4 wheelers, truck…
MMY division
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NFC, RFID HF & UHF technologies
2
Complementary solutions to Wireless Technologies
Communication from 1cm (NFC) to up to 10m (RFID UHF) Automotive applications
Zigbee
GSM / NB-IoT
3G1 000
100
100 000
10 000
BT / BLE
0.10.01 101 1k100 Distance (m)
UWB
Speed
(kbps)
HF
(RFID)NFC
WIFI
5G
4G
LoRA / Sigfox
10k
UHF
(RFID)
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NFC technology
3
• Short range contactless
communication
• Technology operating at
13.56MHz frequency
• Based on RFID HF
ISO14443 & ISO15693
standards
• More than 70% of new
phones come with NFC
• NFC is used for Mobile
Payment with Android
and iOS (ApplePay)
• Apple added in 2019
support of NFC reader /
writer mode from iOS13
onward
• NFC tags powered by
phone or RFID reader
• Enabling convenient
connection to the Cloud
for IoT
• NFC-enabled mobile
phone can engage with
items by a simple tap
• Interoperability between
devices with NFC
Forum certified
products
• Standardized use
cases (URL web link,
Bluetooth handover…)
Interactive and
zero power
NFC is developed
by NFC Forum
Fast growing
employment in
Mobile phone
Near Field
Communication
Automotive applications
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NFC main use cases & benefits
4
• Convenient access to the car (door
handle)
• NFC being the RF back-up interface for
keyfob in case of battery off
• Secured start
• Cloud-based distribution of keys to an
NFC enabled phone
Access & Start
• NFC also enables consumable
authentication
(e.g. air filter, oil filter)
• No physical connection (ODB) is required
anymore for car diagnostics.
• Convenient BT pairing to connect NFC
phone to car
• Automatic driver identification & personal
settings configuration (seat, temperature…)
• NFC credit cards or badges detection to
prevent damaging them during Qi charging
• In car secured payment
Pairing, Setup & Safety Consumable & Diagnostics
Interactive and zero power technology (Tag powered by Reader)
Trusted communication thanks to short reading distance
Simple and flexible
NFC NFC NFC
Automotive applications
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Car door handle
NFC reader for door handle
5
Typical NFC Reader Block Diagram & Usage for Car door handle
ST25R3914 / 15 - ST25R3920
ST25R
RAM
High output power
Low power consumption
Automatic antenna tuning
Phone compatibilitySPI
STM8A / SPC58
MCU
Touch
eSE
(ST33)
LF / HF
BT / UWB
Keyless car access
(CCC specification)
SPC58 MCUCAN
/ LIN
Automotive applications
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Car center console
NFC reader for center console
6
Typical NFC Reader Block Diagram & Usage for Car center console
ST25R3914 / 15 - ST25R3920
High output power
Low power consumption
Automatic antenna tuning
Phone compatibility
SPC58 MCU
eSE
(ST33)
Car easy start
BT pairing
Driver settings
NFC for Wireless charging
CAN
/ LIN
ST25R
RAMSPI
Wireless charging
(STWBC)
Automotive
chips
Automotive applications
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Car
Dynamic NFC tag
7
ST25DV04K / 16K / 64K
Typical Dynamic NFC Tag Block Diagram and Usage for Automotive
I2C fast interface
Fast Transfer Mode
Long RF range
BT pairing
Driver settings
ST25DV-
I2C
EEPROM
I2C
SPC58 MCUCAN
/ LIN Automotive
chips
Automotive applications
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NFC tag
8
Typical NFC Tag (+ Reader) Block Diagram & Usage in Automotive
TruST25 digital signature
Passwords
Easy & fast data transfer
ST25TV02K / ST25TA02KBConsumable (e.g. filter…)
ST25T
EEPROM
Product recognition
End user experience
Automotive applications
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ST25 rich eco-system
9
• Discovery Kits based
on STM32 MCU
• STM32 Nucleo boards
ecosystem
• STM32Cube software
ecosystem
• Antenna e-design tool
• Schematic, BOM,
Gerber
• IBIS models
• PC software tool ST25
SDK
• Mobile Apps ST25
SDK (Android & iOS)
• Documentation
• Training
• Webinar
• MOOC
Automotive applications
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ST25 hardware solutions
10
Speed-up Evaluation, Prototyping and Design
NFC TAG KIT
• ST25-TAG-BAG-U
DYNAMIC NFC TAG KITS
• ST25DV-DISCOVERY
• ANT-1-6-ST25DV
HF / NFC READER KITS
• ST25R3911B-DISCO
• X-NUCLEO-NFC05A1• X-NUCLEO-NFC04A1
• ANT7-T-ST25DV04K
• ST25R3916-DISCO
• X-NUCLEO-NFC06A1
Automotive applications
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NFC in automotive
11
Center Console
Protect, Pair & AuthenticateDoor
Access & Authenticate
Keyfob
Access & Exchange data
Automotive applications
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Solutions for NFC / RFID Tags & Readers
ST25 SIMPLY MORE CONNECTED