MFRC522_(2007) 데이터 시트보기 (PDF) - NXP Semiconductors.
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MFRC522_ Datasheet PDF : 109 Pages
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NXP Semiconductors
MFRC522
Contactless Reader IC
4. Quick reference data
Table 1. Quick reference data
Symbol
Parameter
Conditions
Min Typ Max Unit
AVDD
DVDD
TVDD
PVDD
Supply Voltage
Pad power supply
AVSS = DVSS = PVSS= TVSS = 0 V, [1][2] 2.5
-
PVDD ≤ AVDD = DVDD =TVDD
[1][2]
[1][2]
AVSS = DVSS = PVSS= TVSS = 0 V, [3]
1.6
-
PVDD ≤ AVDD = DVDD =TVDD
3.6 V
3.6 V
SVDD
MFIN/MFOUT Pad Power
Supply
AVSS = DVSS = PVSS= TVSS = 0 V,
1.6 -
3.6 V
IHPD
Hard Power-down Current
AVDD = DVDD = TVDD = PVDD = 3 V, [4]
-
-
5
μA
NRESET = LOW
ISPD
Soft Power-down Current
AVDD = DVDD = TVDD = PVDD = 3 V, [4]
-
-
10
μA
RF level detector on
IDVDD
Digital Supply Current
DVDD = 3 V
-
6.5 9
mA
IAVDD
IAVDD,RCVOFF
Analog Supply Current
Analog Supply Current,
receiver switched off
AVDD = 3 V, bit RCVOff = 0
AVDD = 3 V, bit RCVOff = 1
-
7
10
mA
-
3
5
mA
IPVDD
ITVDD
Tamb
Pad Supply Current
Transmitter Supply Current Continuous Wave
operating ambient temperature
[2]
-
-
[1][3][8] -
60
-25
40
mA
100 mA
+85 °C
[1] Supply voltage below 3 V reduces the performance (e.g. the achievable operating distance).
[2] AVDD, DVDD and TVDD shall always be on the same voltage level.
[3] PVDD shall always be on the same or lower voltage level than DVDD.
[4] ITVDD depends on TVDD and the external circuitry connected to Tx1 and Tx2
[5] IPVDD depends on the overall load at the digital pins.
[6] During operation with a typical circuitry the overall current is below 100 mA.
[7] ISPD and IHPD are the total currents over all supplies.
[8] Typical value using a complementary driver configuration and an antenna matched to 40 Ω between TX1 and TX2 at 13.56 MHz
112132
Product data sheet
Rev. 3.2 — 22 May 2007
© NXP B.V. 2007. All rights reserved.
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