MFRC522 datasheet(71/96 Pages) NXP

71 / 96 page

MFRC522_33

Product data sheet

PUBLIC

Rev. 3 — 26 October 2009

112133

71 of 96

NXP Semiconductors

MFRC522

Contactless reader IC

11. Limiting values

12. Recommended operating conditions

[1]

Supply voltages below 3 V reduce the performance (the achievable operating distance).

[2]

VDDA, VDDD and VDD(TVDD) must always be the same voltage.

[3]

VDD(PVDD) must always be the same or lower voltage than VDDD.

13. Thermal characteristics

Table 150. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134).

Symbol

Parameter

Conditions

Min

Max

Unit

VDDA

analog supply voltage

−0.5

+4.0

VDDD

digital supply voltage

−0.5

+4.0

VDD(PVDD) PVDD supply voltage

−0.5

+4.0

VDD(TVDD) TVDD supply voltage

−0.5

+4.0

VDD(SVDD) SVDD supply voltage

−0.5

+4.0

input voltage

all input pins except pins MFIN and

VSS(PVSS) − 0.5 VDD(PVDD) + 0.5 V

pin MFIN

VSS(PVSS) − 0.5 VDD(SVDD) + 0.5 V

Ptot

total power dissipation

per package; and VDDD in shortcut

mode

200

junction temperature

100

°C

VESD

electrostatic discharge voltage HBM; 1500

Ω, 100 pF;

JESD22-A114-B

2000

MM; 0.75

µH, 200 pF;

JESD22-A114-A

200

Table 151. Operating conditions

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDDA

analog supply voltage

VDD(PVDD) ≤ VDDA = VDDD = VDD(TVDD);

VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V

[1][2] 2.5

3.3

3.6

VDDD

digital supply voltage

VDD(PVDD) ≤ VDDA = VDDD = VDD(TVDD);

VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V

[1][2] 2.5

3.3

3.6

VDD(TVDD)

TVDD supply voltage

VDD(PVDD) ≤ VDDA = VDDD = VDD(TVDD);

VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V

[1][2] 2.5

3.3

3.6

VDD(PVDD)

PVDD supply voltage

VDD(PVDD) ≤ VDDA = VDDD = VDD(TVDD);

VSSA =VSSD =VSS(PVSS) =VSS(TVSS) =0V

[3] 1.6

1.8

3.6

VDD(SVDD)

SVDD supply voltage

VSSA =VSSD =VSS(PVSS) =VSS(TVSS) = 0 V

1.6

3.6

Tamb

ambient temperature

HVQFN32

−25

+85

°C

Table 152. Thermal characteristics

Symbol Parameter

Conditions

Package

Typ

Unit

Rth(j-a)

thermal resistance from junction to

ambient

in still air with exposed pin soldered on a

4 layer JEDEC PCB

HVQFN32

K/W

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