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MFRC522 Datasheet(PDF) 2 Page - NXP Semiconductors

Part # MFRC522
Description  Contactless Reader IC
PDF  109 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

MFRC522 Datasheet(HTML) 2 Page - NXP Semiconductors

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© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 3.2 — 22 May 2007
2 of 109
NXP Semiconductors
MFRC522
Contactless Reader IC
SPI interface up to 10 Mbit/s
I2C interface up to 400 kbit/s in Fast mode, up to 3400 kbit/s in High-speed mode
serial UART in different transfer speeds up to 1228.8 kbit/s, framing according to
the RS232 interface with voltage levels according pad voltage supply
Comfortable 64 byte send and receive FIFO-buffer
Flexible interrupt modes
Hard reset with low power function
Power-down mode per software
Programmable timer
Internal oscillator to connect 27.12 MHz quartz
2.5 - 3.3 V power supply
CRC Co-processor
Free programmable I/O pins
Internal self test



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