Datasheet

DEM 20233 SYH-LY Product Specification
VERSION: 2 PAGE: 1
1. FUNCTIONS & FEATURES
Display Format : 20x2 Characters
LCD Mode : STN / Positive / Transflective / Yellow-Green
Viewing Direction : 6 o’clock
Driving scheme : 1/16 Duty , 1/5 Bias
Power supply voltage (V
DD
) : 5.0 Volt (typ.)
LCD driving voltage(Vop) : 3.8 Volt (typ. at 25°C)
Operation Temperature : -20°C ~ 70°C
Storage Temperature : -30°C ~ 80°C
Backlight : LED, Yellow-Green, Lightbox
2. MECHANICAL SPECIFICATIONS
Module Size : 180.00 x 40.00 x 13.9 mm
Viewing Area : 149.00 x 23.00 mm
Character Pitch : 7.20 x 10.98 mm
Character Size : 6.00 x 9.66 mm
Dot Pitch : 1.22 x 1.22 mm
Dot Size : 1.12 x 1.12 mm
3. BLOCK DIAGRAM
580mA
LEDK
(Constant Voltage:5.0V)
LEDA
RS
LEDK
D0−D7
LEDA
E
VSS
VDD
Vo
Backlight
Vo
MODULE
LCD
VSS(0V)
VR(0~20K)
VDD(+5.0V)
CONTROL DATA
SEG
DRIVE LSI
LCD Panel
COM
SEG
LSI
CONTROL
R/W
DRIVE LSI
Figure1. Block diagram