mfrc531 NXP Semiconductors, mfrc531 Datasheet - Page 91

• Manufacturer Part Number: mfrc531
• Description: Iso/iec 14443 Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 151. Current consumption
Table 152. Standard input pin characteristics
Table 153. Schmitt trigger input pin characteristics
MFRC531_34
Product data sheet
PUBLIC
Symbol
I
I
I
Symbol
I
V
Symbol
I
V
DDD
DDA
DD(TVDD)
LI
LI
th
th
Parameter
input leakage current
threshold voltage
Parameter
input leakage current
threshold voltage
Parameter
digital supply current
analog supply current
TVDD supply current
13.3.1 Input pin characteristics
13.2 Current consumption
13.3 Pin characteristics
Pins D0 to D7, A0, and A1 have TTL input characteristics and behave as defined in
Table
The digital input pins NCS, NWR, NRD, ALE, A2, and MFIN have Schmitt trigger
characteristics, and behave as defined in
152.
Conditions
positive-going threshold;
negative-going threshold;
TTL = 4.5 < V
CMOS = V
TTL = 4.5 < V
CMOS = V
Conditions
CMOS: V
TTL: 4.5 < V
Conditions
Idle command
Standby mode
Soft power-down mode
Hard power-down mode
Idle command; receiver on
Idle command; receiver off
Standby mode
Soft power-down mode
Hard power-down mode
continuous wave
pins TX1 and TX2 unconnected;
TX1RFEn and TX2RFEn = logic 1
pins TX1 and TX2 unconnected;
TX1RFEn and TX2RFEn = logic 0
Rev. 3.4 — 26 January 2010
DDD
DDD
DDD
DDD
DDD
DDD
< 3.6 V
< 3.6 V
056634
< 3.6 V
Table
Min
−1.0
0.35V
0.8
153.
Min
−1.0
1.4
0.65V
0.8
0.25V
DDD
DDD
DDD
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
Typ
-
-
-
-
Typ
-
-
-
ISO/IEC 14443 reader IC
Typ
8
3
800
1
25
12
10
1
1
-
5.5
65
Max
+1.0
2.0
0.75V
1.3
0.4V
Max
+1.0
0.65V
2.0
MFRC531
© NXP B.V. 2010. All rights reserved.
DDD
DDD
DDD
Max
11
5
1000
10
40
15
13
10
10
150
7
130
91 of 116
Unit
μA
V
V
Unit
μA
V
V
V
V
Unit
mA
mA
μA
μA
mA
mA
mA
μA
μA
mA
mA
μA