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MFRC522 数据表(PDF) 73 Page - NXP Semiconductors |
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MFRC522 数据表(HTML) 73 Page - NXP Semiconductors |
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73 / 96 page  MFRC522_33 © NXP B.V. 2009. All rights reserved. Product data sheet PUBLIC Rev. 3 — 26 October 2009 112133 73 of 96 NXP Semiconductors MFRC522 Contactless reader IC VOH HIGH-level output voltage VDD(PVDD) =3V; IO = 4 mA VDD(PVDD) − 0.4 -VDD(PVDD) V VOL LOW-level output voltage VDD(PVDD) =3V; IO = 4 mA VSS(PVSS) -VSS(PVSS) + 0.4 V IOH HIGH-level output current VDD(PVDD) =3V - - 4 mA IOL LOW-level output current VDD(PVDD) =3V - - 4 mA Output characteristics Pin MFOUT VOH HIGH-level output voltage VDD(SVDD) =3V; IO = 4 mA VDD(SVDD) − 0.4 -VDD(SVDD) V VOL LOW-level output voltage VDD(SVDD) =3V; IO = 4 mA VSS(PVSS) -VSS(PVSS) + 0.4 V IOL LOW-level output current VDD(SVDD) =3V - - 4 mA IOH HIGH-level output current VDD(SVDD) =3V - - 4 mA Pin IRQ VOH HIGH-level output voltage VDD(PVDD) =3V; IO = 4 mA VDD(PVDD) − 0.4 -VDD(PVDD) V VOL LOW-level output voltage VDD(PVDD) =3V; IO = 4 mA VSS(PVSS) -VSS(PVSS) + 0.4 V IOL LOW-level output current VDD(PVDD) =3V - - 4 mA IOH HIGH-level output current VDD(PVDD) =3V - - 4 mA Pins AUX1 and AUX2 VOH HIGH-level output voltage VDDD =3V; IO = 4 mA VDDD − 0.4 - VDDD V VOL LOW-level output voltage VDDD =3V; IO = 4 mA VSS(PVSS) -VSS(PVSS) + 0.4 V IOL LOW-level output current VDDD =3V - - 4 mA IOH HIGH-level output current VDDD =3V - - 4 mA Pins TX1 and TX2 VOH HIGH-level output voltage VDD(TVDD) =3V; IDD(TVDD) = 32 mA; CWGsP[5:0] = 3Fh VDD(TVDD) − 0.15 -- V VDD(TVDD) =3V; IDD(TVDD) = 80 mA; CWGsP[5:0] = 3Fh VDD(TVDD) − 0.4 -- V VDD(TVDD) = 2.5 V; IDD(TVDD) = 32 mA; CWGsP[5:0] = 3Fh VDD(TVDD) − 0.24 -- V VDD(TVDD) = 2.5 V; IDD(TVDD) = 80 mA; CWGsP[5:0] = 3Fh VDD(TVDD) − 0.64 -- V Table 153. Characteristics …continued Symbol Parameter Conditions Min Typ Max Unit |
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