MFRC522 datasheet(3/96 Pages) NXP

3 / 96 page

MFRC522_33

Product data sheet

PUBLIC

Rev. 3 — 26 October 2009

112133

3 of 96

NXP Semiconductors

MFRC522

Contactless reader IC

Ordering information

[1]

Delivered in one tray.

[2]

Delivered in ﬁve trays.

Block diagram

The analog interface handles the modulation and demodulation of the analog signals.

The contactless UART manages the protocol requirements for the communication

protocols in cooperation with the host. The FIFO buffer ensures fast and convenient data

transfer to and from the host and the contactless UART and vice versa.

Various host interfaces are implemented to meet different customer requirements.

Table 2.

Ordering information

Type number

Package

Name

Description

Version

MFRC52201HN1/TRAYB[1]

HVQFN32 plastic thermal enhanced very thin quad ﬂat package; no leads;

32 terminal; body 5

× 5 × 0.85 mm

SOT617-1

MFRC52201HN1/TRAYBM[2]

HVQFN32 plastic thermal enhanced very thin quad ﬂat package; no leads;

32 terminal; body 5

× 5 × 0.85 mm

SOT617-1

Fig 1.

Simpliﬁed block diagram of the MFRC522

001aaj627

HOST

ANTENNA

FIFO

BUFFER

ANALOG

INTERFACE

CONTACTLESS

UART

SERIAL UART

SPI

I2C-BUS

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