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MFRC522 Datasheet(PDF) 86 Page - NXP Semiconductors

Part No. MFRC522
Description  Contactless Reader IC
Download  109 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

MFRC522 Datasheet(HTML) 86 Page - NXP Semiconductors

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© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 3.2 — 22 May 2007
86 of 109
NXP Semiconductors
MFRC522
Contactless Reader IC
23.1.9 Output Pin characteristics for Pins AUX1 and AUX2
23.1.10 Output Pin characteristics for Pins TX1 and TX2
VIH
Input voltage High
0.7 AVDD --
V
VIL
Input voltage Low
-
-
0.3 AVDD V
COSCIN
Input capacitance
AVDD =2.8 V,
VDC = 0.65 V,
VAC =1VPP
-2
-
pF
Table 165: Input Pin characteristics for OSCIN
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 166: Output Pin characteristics for Pins AUX1 and AUX2
Symbol Parameter
Conditions
Min
Typ
Max
Unit
VOH
Output voltage HIGH DVDD =3V,
IO =4 mA
DVDD -400 mV -
DVDD
V
VOL
Output voltage LOW
DVDD =3V,
IO =4 mA
DVSS
-DVSS +400 mV V
IOL
Output current drive
LOW
DVDD =3 V
-
-
4
mA
IOH
Output current drive
HIGH
DVDD =3 V
-
-
4
mA
Table 167: Output Pin characteristics for Pins TX1 and TX2
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOH,C32,3V
Output voltage
HIGH
TVDD = 3 V and
ITX =32mA,
CWGsP =3Fh
TVDD -150 mV
-
-
mV
VOH,C80,3V
TVDD = 3 V and
ITX =80mA,
CWGsP =3Fh
TVDD -400 mV
-
-
mV
VOH,C32,2V5
TVDD = 2.5 V and
ITX =32mA,
CWGsP =3Fh
TVDD -240 mV
-
-
mV
VOH,C80,2V5
TVDD = 2.5 V and
ITX =80mA,
CWGsP =3Fh
TVDD -640 mV
-
-
mV
VOL,C32,3V
Output voltage
LOW
TVDD = 3 V and
ITX =32mA,
CWGsP =0Fh
-
-
150
mV
VOL,C80,3V
TVDD = 3 V and
ITX =80mA,
CWGsP =0Fh
-
-
400
mV
VOL,C32,2V5
TVDD = 2.5 V and
ITX =32mA,
CWGsP =0Fh
-
-
240
mV
VOL,C80,2V5
TVDD = 2.5 V and
ITX =80mA,
CWGsP =0Fh
-
-
640
mV


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