mfrc522 NXP Semiconductors, mfrc522 Datasheet - Page 85

• Manufacturer Part Number: mfrc522
• Description: Contactless Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
112132
Product data sheet
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
23.1.8 Input Pin characteristics for pin OSCIN
Table 162: Output Pin characteristics for Pin MFOUT
Table 163: Output Pin characteristics for Pin IRQ
Table 164: Input Pin characteristics for Pin Rx
[1]
Table 165: Input Pin characteristics for OSCIN
Symbol Parameter
V
V
I
I
Symbol Parameter
V
V
I
I
Symbol Parameter
V
C
R
Symbol
I
OL
OH
OL
OH
Leak
OH
OL
OH
OL
IN,RX
IN,RX
IN,RX
The voltage on RX in clamped by internal diodes to AV
Output voltage HIGH SV
Output voltage LOW SV
Output current drive
LOW
Output current drive
HIGH
Output voltage HIGH PV
Output voltage LOW
Output current drive
LOW
Output current drive
HIGH
Input voltage range
RX Input capacitance AV
RX Input Series
resistance
Parameter
Input Leakage current
Rev. 3.2 — 22 May 2007
Conditions
I
I
SV
SV
Conditions
I
PV
I
PV
PV
O
O
Conditions
Receiver active,
V
1.5 V
AV
Receiver active,
V
1.5 V
O
O
RX
RX
= 4 mA
= 4 mA
Conditions
DD
DD
DD
DD
= 4 mA
= 4 mA
DD
DD
DD
DD
DD
DD
= 1 V
= 1 V
= 3 V
= 3 V,
= 3 V,
= 3 V
DC
DC
= 3 V
= 3 V
= 3 V,
= 3 V,
= 3 V,
= 3 V,
offset
offset
PP
PP
,
,
Min
SV
SV
-
-
SS
Min
PV
PV
-
-
and AV
DD
SS
Min
-1
-
-
DD
SS
-400 mV -
-400 mV -
DD
Min
-1
.
Typ
-
-
-
Typ
-
-
-
Contactless Reader IC
Typ
-
10
350
Typ
-
Max
SV
PV
4
4
MFRC522
Max
PV
PV
4
4
© NXP B.V. 2007. All rights reserved.
DD
SS
DD
SS
Max
AV
-
-
Max
1
+400 mV V
+400 mV V
DD
+1 V V
85 of 109
Unit
μA
Unit
V
mA
mA
Unit
pF
Ω
Unit
V
mA
mA