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STMicroelectronics Electronic Components Datasheet

ST95HF Datasheet

Near field communication transceiver

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ST95HF
Near field communication transceiver
VFQFPN32 5x5 mm
Features
Operating modes supported:
– Reader/Writer
– Card Emulation (ISO/IEC 14443-3 Type A)
– Peer-to-Peer
Hardware features
– Dedicated internal frame controller
– Highly integrated Analog Front End (AFE)
for RF communications
– Transmission and reception modes
– Optimized power management
– Tag Detection mode
– Field Detection mode
RF communication @13.56 MHz
– ISO/IEC 14443 Type A and B in Reader
and Card Emulation modes
– ISO/IEC 15693 in Reader mode
– ISO/IEC 18092 in Reader and Card
Emulation modes
– MIFARE® Classic compatible (a) (b)
Datasheet - production data
Communication interfaces with a Host
Controller
– Serial peripheral interface (SPI) Slave
interface up to 2 Mbps
– Up to 528-byte command/reception buffer
(FIFO) depending on communication
protocol
32-lead, 5x5 mm, very thin fine pitch quad flat
(VFQFPN) ECOPACK®2 package
Applications
Typical protocols supported:
ISO/IEC 14443-3 Type A and B tags
ISO/IEC 15693 tags
ISO/IEC 18000-3M1 tags
NFC Forum tags: Types 1, 2, 3 and 4
ST Dual Interface EEPROM
Typical ST95HF applications include:
Consumer electronics
Gaming
Healthcare
Industrial
Typical ST95HF use cases include:
NFC-enabled Wi-Fi pairing
NFC-enabled Bluetooth pairing
Data exchange / peer-to-peer
Communications with NFC/RFID tag (reader
mode)
a. MIFARE and MIFARE Classic are registered
trademarks of NXP B.V. and are used under license.
b. Parity Framing mode is compatible with
MIFARE® Classic requirements. However, access to
Authenticated state must be supported by an external
secure host which embeds the MIFARE® Classic
library.
August 2014
This is information on a product in full production.
DocID025630 Rev 3
1/89
www.st.com


STMicroelectronics Electronic Components Datasheet

ST95HF Datasheet

Near field communication transceiver

No Preview Available !

Contents
Contents
ST95HF
1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 List of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Pin and signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Power management and operating modes . . . . . . . . . . . . . . . . . . . . . . . 9
3.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Startup sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Communication protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.1 Polling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1.2 Interrupt mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.2 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3 Support of long frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.1 Command format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.2 List of commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.3 IDN command (0x01) description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.4 Protocol Select command (0x02) description . . . . . . . . . . . . . . . . . . . . . . 18
5.5 Pollfield command (0x03) description . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.6 Send Receive (SendRecv) command (0x04) description . . . . . . . . . . . . . 24
5.7 Listen command (0x05) description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.8 Send command (0x06) description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.9 Idle command (0x07) description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.9.1 Idle command parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.9.2 Using LFO frequency setting to reduce power consumption . . . . . . . . . 35
5.9.3 Optimizing wake-up conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
5.9.4 Using various techniques to return to Ready state . . . . . . . . . . . . . . . . 36
5.9.5 Tag detection calibration procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
5.10 Read Register (RdReg) command (0x08) description . . . . . . . . . . . . . . . 39
2/89 DocID025630 Rev 3


Part Number ST95HF
Description Near field communication transceiver
Maker STMicroelectronics
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