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MFRC522 数据表(PDF) 72 Page - NXP Semiconductors

部件名 MFRC522
功能描述  Contactless reader IC
PDF  96 Pages
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制造商  NXP [NXP Semiconductors]
网页  http://www.nxp.com
标志 NXP - NXP Semiconductors

MFRC522 数据表(HTML) 72 Page - NXP Semiconductors

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MFRC522_33
© NXP B.V. 2009. All rights reserved.
Product data sheet
PUBLIC
Rev. 3 — 26 October 2009
112133
72 of 96
NXP Semiconductors
MFRC522
Contactless reader IC
14. Characteristics
Table 153. Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Input characteristics
Pins EA, I2C and NRSTPD
ILI
input leakage current
−1-
+1
µA
VIH
HIGH-level input voltage
0.7VDD(PVDD) --
V
VIL
LOW-level input voltage
-
-
0.3VDD(PVDD)
V
Pin MFIN
ILI
input leakage current
−1-
+1
µA
VIH
HIGH-level input voltage
0.7VDD(SVDD) --
V
VIL
LOW-level input voltage
-
-
0.3VDD(SVDD)
V
Pin SDA
ILI
input leakage current
−1-
+1
µA
VIH
HIGH-level input voltage
0.7VDD(PVDD) --
V
VIL
LOW-level input voltage
-
-
0.3VDD(PVDD)
V
Pin RX[1]
Vi
input voltage
−1-
VDDA +1
V
Ci
input capacitance
VDDA = 3 V; receiver active;
VRX(p-p) = 1 V; 1.5 V (DC)
offset
-10
-
pF
Ri
input resistance
VDDA = 3 V; receiver active;
VRX(p-p) = 1 V; 1.5 V (DC)
offset
-
350
-
Ω
Input voltage range; see Figure 24
Vi(p-p)(min) minimum peak-to-peak input
voltage
Manchester encoded;
VDDA =3V
-
100
-
mV
Vi(p-p)(max) maximum peak-to-peak input
voltage
Manchester encoded;
VDDA =3V
-4
-
V
Input sensitivity; see Figure 24
Vmod
modulation voltage
minimum Manchester
encoded; VDDA =3V;
RxGain[2:0] = 111b (48 dB)
-5
-
mV
Pin OSCIN
ILI
input leakage current
−1-
+1
µA
VIH
HIGH-level input voltage
0.7VDDA
--
V
VIL
LOW-level input voltage
-
-
0.3VDDA
V
Ci
input capacitance
VDDA = 2.8 V; DC = 0.65 V;
AC = 1 V (p-p)
-2
-
pF
Input/output characteristics
pins D1, D2, D3, D4, D5, D6 and D7
ILI
input leakage current
−1-
+1
µA
VIH
HIGH-level input voltage
0.7VDD(PVDD) --
V
VIL
LOW-level input voltage
-
-
0.3VDD(PVDD)
V



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