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RC522 Datasheet(PDF) 85 Page - NXP Semiconductors

Part # RC522
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

RC522 Datasheet(HTML) 85 Page - NXP Semiconductors

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© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 3.2 — 22 May 2007
85 of 109
NXP Semiconductors
MFRC522
Contactless Reader IC
23.1.5 Output Pin characteristics for Pin MFOUT
23.1.6 Output Pin characteristics for Pin IRQ
23.1.7 Input Pin characteristics for Pin Rx
[1]
The voltage on RX in clamped by internal diodes to AVSS and AVDD.
23.1.8 Input Pin characteristics for pin OSCIN
Table 162: Output Pin characteristics for Pin MFOUT
Symbol Parameter
Conditions
Min
Typ
Max
Unit
VOH
Output voltage HIGH SVDD =3V,
IO =4mA
SVDD -400 mV -
SVDD
V
VOL
Output voltage LOW
SVDD =3V,
IO =4mA
SVSS
-PVSS +400 mV V
IOL
Output current drive
LOW
SVDD =3V
-
-
4
mA
IOH
Output current drive
HIGH
SVDD =3V
-
-
4
mA
Table 163: Output Pin characteristics for Pin IRQ
Symbol Parameter
Conditions
Min
Typ
Max
Unit
VOH
Output voltage HIGH PVDD =3V,
IO =4 mA
PVDD -400 mV -
PVDD
V
VOL
Output voltage LOW
PVDD =3V,
IO =4 mA
PVSS
-PVSS +400 mV V
IOL
Output current drive
LOW
PVDD =3V
-
-
4
mA
IOH
Output current drive
HIGH
PVDD =3V
-
-
4
mA
Table 164: Input Pin characteristics for Pin Rx
Symbol Parameter
Conditions
Min
Typ
Max
Unit
VIN,RX
Input voltage range
-1
-
AVDD +1 V V
CIN,RX
RX Input capacitance AVDD = 3 V,
Receiver active,
VRX = 1 VPP,
1.5 VDC offset
-10
-
pF
RIN,RX
RX Input Series
resistance
AVDD =3V,
Receiver active,
VRX =1VPP,
1.5 VDC offset
-350
-
Ω
Table 165: Input Pin characteristics for OSCIN
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
ILeak
Input Leakage current
-1
-
1
μA



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