mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 109

• Manufacturer Part Number: mfrc522
• Description: Contactless Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
23.1.9 Output Pin characteristics for Pins AUX1 and
23.1.10Output Pin characteristics for Pins TX1 and
23.2
23.3
23.4
23.5
23.6
23.7
23.8
23.9
24
25
26
27
28
29
30
31
31.1
31.2
31.3
31.4
32
33
34
35
AUX2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
TX2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Current Consumption . . . . . . . . . . . . . . . . 87
RX Input Voltage Range . . . . . . . . . . . . . . 88
RX Input Sensitivity . . . . . . . . . . . . . . . . . . 88
Clock Frequency . . . . . . . . . . . . . . . . . . . . 88
XTAL Oscillator . . . . . . . . . . . . . . . . . . . . . 89
Typical 27.12 MHz Crystal Requirements . 89
Timing for the SPI compatible interface . . 90
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
Data sheet status . . . . . . . . . . . . . . . . . . 100
Definitions . . . . . . . . . . . . . . . . . . . . . . . . 100
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . 100
Trademarks . . . . . . . . . . . . . . . . . . . . . . . 100
Contact information . . . . . . . . . . . . . . . . . 101
Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Figures . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Contents . . . . . . . . . . . . . . . . . . . . . . . . . 107
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section ‘Legal information’.
© NXP B.V. 2007.
For more information, please visit: http://www.nxp.com
For sales office addresses, please send an email to: [e-mail]
Contactless Reader IC
MFRC522
Date of release: 22 May 2007
Document identifier: 112132
All rights reserved.