RFID Reader Module
- 3 -
Characteristics of DC
Data
Mini
value
Typical
value
Max value
Unit
Remark
Voltage of power
4.5
5
5.5
V
Direct current
2
3.3
5.5
V
GPIO
Input high level
2 - 5 V EN
-0.3
0
0.8
V
GPIO
Input low level
-
-
0.18
V
EN
Output high
level
2.9
-
-
V
GPIO
Output low level
-
0
0.1
V
GPIO
Enable current
2
5
25
uA
V
EN
≥
2V
Requirement on antenna
No
Item
Technical data
Unit
Remark
1
Standing wave
ratio
≤
1.5
Appearance and structure
z
Size: 76.5×39.7×9mm
z
Weight: 50g
