HID Global Corporation 5553 Manuale Utente
HF Multi ISO RFID Reader User Manual, Firmware V1.4
1508-USM-00-0-04
August 2010
Page 15 of 144
© 2005-2010 HID Global Corporation. All rights reserved.
PIN
PIN No.
Min
Typ.
Max.
Description
1.4V
@ 11mA
@ 11mA
VDD
@ 0mA
@ 0mA
LED green (reading LED)
with 330
with 330
(internal serial) resistor
LEDg 18
11mA 15mA
GND 19
GND
Ground
VDD 20
+4.5V +5.0V
+5.5V Supply
Voltage
IDD
32 mA
150 mA
250 mA
Supply Current (Without SAM)
1.4 External Connections
1.4.1 Power Supply
If the supply voltage and any noise modulated on the supply voltage remains within the specified
limits, no further filtering is required. In some cases it is recommended to use additional filtering for
the power supply line. Insufficient power line filtering could cause unexpected or irregular
performance drops.
limits, no further filtering is required. In some cases it is recommended to use additional filtering for
the power supply line. Insufficient power line filtering could cause unexpected or irregular
performance drops.
uC
20
19
19
OEM Board
+5V DC
Figure 2 - Power Supply Option 1