VL-FS-MDLS12433P-01 REV. A
(MDLS12433P-LV-S)
MAR/2004
PAGE 7 OF 10
4. Electrical Specifications
4.1 Interface signals
Pin No.
Table 4
Symbol
GND
VCC
V0
Description
1
2
3
4
5
Ground (0V) and cathode of LED backlight.
Power supply for logic (+5V).
Control input for VLCD.
SDA
SCL
I2C serial data input/output.
I2C serial clock input.
4.2
Typical Electrical Characteristics
Ta = 25 °C,VCC = 5.0V ±5%,GND=0V.
Conditions: GND=0V, VCC=VCC(typ.), Tamb=+25°C, Vop=Vop(typ.),
Rosc=Rosc(typ.), unless otherwise stated.
Table 5
Parameter
Symbol
Conditions
Note 1
Min.
4.75
3.0
Typ.
5.00
3.3
Max.
5.25
3.6
Unit
V
Supply voltage (Logic) VCC-GND
Supply voltage (LCD)
VLCD
V
=VCC-V0
Input signal voltage low Vil
GND
0.9 VCC
-
-
0.1 VCC
VCC
V
V
Input signal voltage
high
Vih
LCD operating current
ICC
Character mode,
Note 1
Checker board
mode, Note 1
-
-
0.4
0.5
0.6
0.8
mA
mA
Note 1: There is tolerance in optimum LCD driving voltage during production and it will be within
the specified range.
VARITRONIX [ VARITRONIX INTERNATIONAL LIMITED ]
