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MFRC522 Datasheet(PDF) 7 Page - NXP Semiconductors |
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MFRC522 Datasheet(HTML) 7 Page - NXP Semiconductors |
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7 / 109 page  112132 © NXP B.V. 2007. All rights reserved. Product data sheet Rev. 3.2 — 22 May 2007 7 of 109 NXP Semiconductors MFRC522 Contactless Reader IC 7. Pinning information 7.1 Pinning 7.2 Pin description Fig 3. Pinning configuration HVQFN32 (SOT617-1). Table 3: Pin description Symbol Pin Type Description I2C1 I I2C enable[2] PVDD 2 PWR Pad power supply DVDD 3 PWR Digital Power Supply DVSS 4 PWR Digital Ground[1] PVSS 5 PWR Pad power supply ground NRSTPD 6 I Not Reset and Power-down: When LOW, internal current sinks are switched off, the oscillator is inhibited, and the input pads are disconnected from the outside world. With a positive edge on this pin the internal reset phase starts. MFIN 7 I Mifare Signal Input MFOUT 8 O Mifare Signal Output SVDD 9 PWR MFIN / MFOUT Pad Power Supply: provides power to for the MFIN / MFOUT pads TVSS 10, 14 PWR Transmitter Ground: supplies the output stage of TX1 and TX2 |
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