NFC/RFID in AutomotivePeng WANG
Product Marketing Section Manager
Marketing & Application - MMS
Asia Pacific Region
STMicroelectronics
NFC/RFID for Automotive 2
Diagnostics
No physical connection is anymore
required for car diagnostics, which helps on safety
Car accessConvenient access to the car and
distribution of keys online to a NFC enabled phone
Personal Settings
Just sit in, and the entire cockpit will fit the driver wish
Your NFC phone will take care of secure pairing!
ST25 Solution: NFC Reader/Tag/Dynamic Tag
Tags in Automotive
Tag for InfotainmentPairing native NFC function
4
No Software Development
No Power Supply
Driver
Access
Driver Change
Phone Calls
Music
Screen Mirroring
Unlock phone
Passengers
Access
LTE Personal
Access
Play&Share
Content
Recording
Event
Maintenance
Reminder/Messa
ge
NFC Tag Product Family 5
ST25TA16K
ST25TA64K
ST25TA512
ST25TA02K
ST25TA02K-P
ST25TA02K-D
Contactless Interface ISO14443A, NFC Type 4
RF range Short range (up to 10cm)
RF speed 106kbps
Memory format EEPROM (preformatted NDEF file)
Memory size 16 / 64-Kbit 512-bit / 2-Kbit 2-Kbit
Data protection 128-bit password
Digital output(GPO for MCU wake-up)
NAField detect
CMOS_P or Open-drain
Counter NA 20-bit counter
RF tuning capacitor 25pF 50pF
Temperature range -40°C to +85°C
Package SBN12 *FPN5 / FPN8
/ SBN12 *
* SBN12: Die form, sawn and Bumped wafer, 120µm thickness, inkless 8” wafer
Dynamic Tags in Automotive
Any car becomes your own place!
Dynamic Tag for Easy Setting7
Seat settings
Mirror settings
Driving settings/mode
Dashboard settings
Radio settings
Ambient light set
Destination point
……
Tap & Exchange:- Driver settings
- Interior settings
- Driving mode
- GPS
Raise Brand Loyalty
Trip datalog
(speed min, max, avg)
Parking stand coordinates
Environmental print
Driving efficiency
Help for Service call
Dynamic Tag for Datalog 8
Share performance within the community
• Model ID/VIN Number
• User Manual
• Maintenance dates
• Warranty information
• Service easy connexion
End User information
• Diagnostic
• Incident logs
• Tracking of components
• Maintenance records
• Warranty records
• Asset tracking
Service information
Service
Reader
Consumer
Mobile device
Dynamic Tags for Service9
Wireless data exchange with car components
No power supply supply needed for NFC operation!
M24SR series M24LR series ST25DV series
Contactless InterfaceISO14443A
NFC Type 4
ISO15693
NFC compatible
ISO15693
NFC Type 5
RF range Short range (up to 10cm) Long range (up to 1m) Long range (up to 1m)
RF speed 106kbps 26kbps 26kbps
Serial Interface I2C @1MHz I2C @400kHz I2C @1MHz
Fast Transfer mode No No Yes (256B buffer)
Energy Harvesting No Yes Yes
Digital output Open-Drain GPO Open-Drain GPO OD or CMOS GPO
Extra features RF Disable - Low Power mode
Memory formatEEPROM
(preformatted NDEF file)EEPROM data EEPROM data
Memory size 2 / 4 / 16 / 64-Kbit 4 / 16 / 64-Kbit 4 / 16 / 64-Kbit
Data protection Password 128-bit Password 32-bit Password 64-bit
Temperature range -40°C to +85°C -40°C to +85°C -40°C to +85°C
PackageSO8 / TSSOP8 /
FPN8 / SBN12 *
SO8 / TSSOP8 /
FPN8 / SBN12 *
SO8 / TSSOP8 / FPN8 /
FPN12 / SBN12 *
Dynamic NFC / RFID Tags 10
* SBN12: Die form, sawn and Bumped wafer, 120µm thickness, inkless 8” wafer
ST25 Tags and Dynamic Tags DNA 11
Feature-rich• 13.56MHz interface• I2C interface• Energy harvesting• 20-bit Counter• Field Detect GPO
• Up to 200 year retention
• 1M erase-write cycles• From 512bit to 64-Kbit• 128-bit password
Best-In-Class memory
High volume & quality• In-house manufacturing
• Leveraging Automotive EEPROM
quality
• Leveraging Consumer EEPROM
volume
Comprehensive portfolio
Standard compliant• NFC Forum
• ISO14443
• ISO15693
Front-End
& Back-End
Manufacturing
HF Readers in Automotive
Automotive NFC Key Drivers 13
A NFC Keycard with cryptography costs <<1$
A Keyfob replacement costs 120~800$
=> considerable cost reduction also for initial
production costs on both car & key side.
Key cost reduction
TESLA seems to have the same effect on the
automotive market like APPLE had on the phone
market.
TESLA Model 3 + iPhone Wallet
Keyless GO systems are not secure anymore.
Industry considers NFC as a safe replacement.
Keyless GO hacked
E-call (a safty feature) 3G/LTE uplink mandatory
for all cars starting 2018.
Key Management solved
>300m
Relay ~30m
Amplifier
attack?
Cars with NFC Doorlock 14
Audi A8 Tesla Model 3
BMW Drive Now Mercedes e-class
Car Rental and Sharing 15
No key!
Flexible to book/open/return/Tracking!
Easier to personalized
Record the history
Automotive Applications 16
Not considered anymore:
In the Mirror
In the Doorhandle
In the B-PillarIn the Middle Console
Aftermarket:
Behind the Windscreen
NFC in Doorhandle 17
Tap – Cap Sensor
Grip – Cap Sensor NFC antenna
SPI
LIN
STM8
ST25R3914/15
NFC in B-Pillar 18
NFC antenna
SPI
LINSTM8
ST25R3914/15
NFC Behind Windscreen 19
STM8
ST25R3914/15
NFC antenna
SPI
LIN/CAN
Metal shielded Box
NFC with Wireless Charger 20
Foreign object detection (detects NFC cards in smart
cases)
NFC enables seamless infotainment operation via
device authentication
Achieves system sharing via personal authentication
using NFC
NFC in the Middleconsole 21
SPC5
ST25R3914/15
Qi
Qi antenna
NFC antenna
SPI
LIN/CAN
Automotive Requirements 22
Large operating volumeST25R3914/15 offers highest output power combined with automatic antenna tuning.
Low power consumption
ST25R3914/15 offers low power wakeup functionality combining inductive sensors.
Wide Interoperability
ST25R3914/15 offers excellent P2P compatibility with NFC devices
EMC performance
Benefits in Automotive
• No external Booster required for required performance
• ST25R3914/15 offers by far the highest output power of all readers on the market. No additional
booster circuitry is required. This is critical with small antennas and metal environment
• Programmable Low power wakeup
• Optimized for operation in battery mode
• Automatic antenna tuning
• Reader is independent on placement. Influence of multiple objects (tags or others) is minimized
• Higher efficiency / less power consumption
• Fastest time to market (Dynamic Power adjustment, Automatic Gain Control, Squelch Feature)
• ST25R3914/15 reduced time to market at our customers significantly vs. competitor solutions
23
ST25R3911B ST25R3912 ST25R3913 ST25R3914 ST25R3915
Description
High-Perf Reader
& NFC initiator
suited for Payment / Passport applications
High-Perf Reader
& NFC initiator
suited for Automotive
Reader/Writer mode
ISO14443A/B
ISO15693
FeliCa
ISO14443A/B
ISO15693
FeliCa
Card emulation mode - -
P2P mode Yes Yes
RF speed6.8Mbps
(VHBR)848kbps 848kbps
Market certification Payment : EMVco, PBOC, mini-pay Automotive: AECQ100
Advanced features
AAT,
DPO,
Cap & Ind wake-up
DPO,
Ind wake-up
AAT,
DPO,
Ind wake-up
AAT,
DPO,
Cap & Ind wake-up
DPO,
Cap & Ind wake-up
Interface SPI 6Mbps SPI 6Mbps
Power supply 2.4V – 5.5V 2.4V – 5.5V
Output power 1.4W 1.0W 1.0W
Temperature range -40°C to +125°C
Package32-pin QFN (5x5 mm)
/ Wafer
32-pin QFN (5x5 mm)
/ WLCSP32-pin QFN (5x5 mm)
32-pin QFN [WF Q1 2018]
(5x5 mm)
ST25R HF Readers Overview 24
P2P: Peer to Peer mode VHBR: Very High Baud Rate AAT: Automatic Antenna TuningDPO: Dynamic
Power Output Cap & Ind wake-up: Capacitive and Inductive wake-up
UHF Readers in Automotive
UHF Solution for Remote Tracking 26
Long Range More Accurate One-to-Many
ST25R UHF Readers 27
VCO: Voltage Controlled Oscillator ACK: ACKnowledge
RSSI: Received Signal Strength Indicator PSRR: Power Supply Rejection Ratio
ST25RU3993
Description
UHF RFID Reader
for Mobile and
Fast Moving Consumer Goods applications
Contactless interface ISO18000-6c/b
Market certification EPC Gen 2
Sensitivity -90dBm
Advanced features
Internal VCO
Dense Reader Mode
Linear RSSI & Phase Bit
Automatic PSRR regulation
Auto ACK
Interface SPI 5Mbps
Power supply 1.65V – 5.5V
Output power 0dBm / 20dBm
Temperature range -40 to +85°C
Package 48-pin QFN (7x7mm)
Thank You!
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