Document
CR95HF
13.56-MHz multi-protocol contactless transceiver IC with SPI and UART serial access
Datasheet - production data
VFQFPN32 (5x5 mm)
Features
• CR95HF belongs to the ST25 family which includes all ST’s NFC/RFID tag and reader products
• Operating modes supported: – Reader/Writer
• 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
• RF communication @13.56 MHz – ISO/IEC 14443 Type A and B – ISO/IEC 15693 – ISO/IEC 18092 – MIFARE® Classic compatible (a) (b)
• Communication interfaces with a Host Controller – Serial peripheral interface (SPI) Slave interface – Universal asynchronous receiver/transmitter (UART) – Up to 528-byte command/reception buffer (FIFO)
• 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 short-range interface (SRI) tags • ST long-range interface (LRI) tags • ST Dual Interface EEPROM
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.
June 2017
This is information on a product in full production.
DocID018669 Rev 12
1/77
www.st.com
Contents
Contents
CR95HF
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 List of terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2
Pin and signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3
Power management and operating modes . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3.2 Startup sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4
Communication protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Universal asynchronous receiver/transmitter (UART) . . . . . . . . . . . . . . . 14
4.2 Serial peripheral interface (SPI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2.1 Polling mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2.2 Interrupt mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.3 Error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4 Suppo.