MFRC522 datasheet(109/109 Pages) NXP

109 / 109 page

NXP Semiconductors

MFRC522

Contactless Reader IC

For more information, please visit: http://www.nxp.com

For sales office addresses, please send an email to: sales.addresses@www.nxp.com

Date of release: 22 May 2007

Document identifier: 112132

Please be aware that important notices concerning this document and the product(s)

described herein, have been included in section ‘Legal information’.

23.1.9 Output Pin characteristics for Pins AUX1 and

AUX2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

23.1.10Output Pin characteristics for Pins TX1 and

TX2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

23.2

Current Consumption . . . . . . . . . . . . . . . . 87

23.3

RX Input Voltage Range . . . . . . . . . . . . . . 88

23.4

RX Input Sensitivity . . . . . . . . . . . . . . . . . . 88

23.5

Clock Frequency . . . . . . . . . . . . . . . . . . . . 88

23.6

XTAL Oscillator . . . . . . . . . . . . . . . . . . . . . 89

23.7

Typical 27.12 MHz Crystal Requirements . 89

23.8

Timing for the SPI compatible interface . . 90

23.9

I2C Timing . . . . . . . . . . . . . . . . . . . . . . . . . 91

Application information . . . . . . . . . . . . . . . 92

Package outline. . . . . . . . . . . . . . . . . . . . . 93

Handling information . . . . . . . . . . . . . . . . . 94

Packing information. . . . . . . . . . . . . . . . . . 95

Abbreviations . . . . . . . . . . . . . . . . . . . . . . 97

References . . . . . . . . . . . . . . . . . . . . . . . . 97

Revision history . . . . . . . . . . . . . . . . . . . . . 98

Legal information. . . . . . . . . . . . . . . . . . . 100

31.1

Data sheet status . . . . . . . . . . . . . . . . . . 100

31.2

Definitions . . . . . . . . . . . . . . . . . . . . . . . . 100

31.3

Disclaimers . . . . . . . . . . . . . . . . . . . . . . . 100

31.4

Trademarks . . . . . . . . . . . . . . . . . . . . . . . 100

Contact information . . . . . . . . . . . . . . . . . 101

Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Figures . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Contents . . . . . . . . . . . . . . . . . . . . . . . . . 107

MFRC522 Datasheet(PDF) 109 Page - NXP Semiconductors

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