Haidar Technology
Page 4
5.
Electrical Characteristics:
SNT-E640480-104-RT requires 3.3VDC (Default) OR 5VDC (Power Select Jumper). Exceeding the
supply voltage over the typical value will cause a permanent damage to the board and to the attached
LCD and void your warranty.
6.
Electrical Specifications:
Parameter
Symbol
Min.
Typ.
Max.
Units
Input Supply Voltage
(PWR SELECT Jumper is
set to 3.3V). Default
settings
VDD
3.1
3.3
3.7
V
Input Supply Voltage
(PWR SELECT Jumper is
set to 5V)
VCC
4.5
5
6
V
High Level Input Voltage
(VDD = 3.3V)
VIH
0.7VDD -
VDD
V
Low Level Input Voltage
(VDD = 3.3V)
VIL
0
-
0.3VDD V
Digital sink/source
current
Id
-
-
25
MA
Analog input voltage
Va
0
-
3.3V
V
RS232 TX/RX
0.7VDD -
VDD
V
Warning: RX and TX use a CMOS level of 3.3V. Connecting them to standard (PC) RS232 with +/-
12V or other will damage the controller and void your warranty.
7.
Carrier Board Picture:
Configuration
Typical Current (A) at 3.3V Max Current (A) at 3.3V
Back light is OFF
0.52A
1A
Back light is ON
0.78A
1A
