ST25R95 datasheet(2/61 Pages) STMICROELECTRONICS

2 / 61 page

Description

The ST25R95 is an integrated transceiver IC for contactless applications.

The ST25R95 manages frame coding and decoding in Reader and card emulation modes for standard

applications such as near field communication (NFC), proximity and vicinity standards.

The ST25R95 supports ISO/IEC 14443 Type A communication in reader and card emulation modes, and ISO/IEC

14443 Type B, ISO/IEC15693, and FeliCa in reader mode.The ST25R95 embeds an analog front end to provide

the 13.56 MHz air interface.

The ST25R95 also supports the detection, reading and writing of NFC Forum Type 1, 2, 3, 4, and 5 tags, and an

SPI interface to communicate with the host controller.

Figure 1. ST25R95 application overview

ST25R95

Host

Interrupt Management

SPI

Controller

(MCU)

1.1

Block diagram

Figure 2. ST25R95 block diagram

RX2

ST25R95

Frame Controller

AFE IP

Configuration

Reader

ISO/IEC 14443

Type A and B

ISO/IEC 15693

FeliCa

Digital

Tag/Field Detector

Timer

Accelerators

Encoder/Decoder

FIFO

AFE

Signal

Mux

Mod/

Demod

Tag

Detector

Status

registers

User interface

SPI

Interrupt

Power & Clock

Management

Host

(User side)

XIN

XOUT

TX1

TX2

RX1

VPS_TX

GND_TX

VPS_Main

GND_Dig

GND_RX

27.12 MHz

Card Emulator

ISO/IEC 14443

Type A

ST25R95

Description

DS12807 - Rev 4

page 2/61

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