LG122325-DW
www.DataSheet4U.com
122 x 32 dots + white led backlight
built in Chinese font
ABSOLUTE MAXIMUM RATINGS
Item Supply Voltage(Logic) Supply Voltage(LCD) Input Voltage Operating Temp. Storage Temp. Symbol VDD - VSS VO - VSS VI Topr Tstg Min. -0.3 -0.3 -0.3 -20 -30 Max. 7.0 7.0 VDD + 0.3 70 80 Unit V V V °C °C
MECHANICAL DATA
Item Module Size ( W x H x T ) Viewing Area ( W x H ) Dot Pitch ( W x H ) Dot Size ( W x H ) Weight Nominal Dimensions 74.0 x 35.0 x 13.5 60.5 x 18.5 0.44 x 0.49.
LCD
LG122325-DW
www.DataSheet4U.com
122 x 32 dots + white led backlight
built in Chinese font
ABSOLUTE MAXIMUM RATINGS
Item Supply Voltage(Logic) Supply Voltage(LCD) Input Voltage Operating Temp. Storage Temp. Symbol VDD - VSS VO - VSS VI Topr Tstg Min. -0.3 -0.3 -0.3 -20 -30 Max. 7.0 7.0 VDD + 0.3 70 80 Unit V V V °C °C
MECHANICAL DATA
Item Module Size ( W x H x T ) Viewing Area ( W x H ) Dot Pitch ( W x H ) Dot Size ( W x H ) Weight Nominal Dimensions 74.0 x 35.0 x 13.5 60.5 x 18.5 0.44 x 0.49 0.40 x 0.45 Approx. 38 Unit mm mm mm mm g
ELECTRICAL CHARACTERISTICS ( V DD =5V±0.25V )
Item Input High Voltage Input Low Voltage Output High Voltage Output Low Voltage Supply Current LCD Driving Voltage Symbol VIH VIL VOH VOL I DD VO - VSS Test Condition --Min. Typ. ----3.0 6.5 Max. Unit V DD 0.6 V DD 0.1VDD 5.0 -V V V V mA V
PIN CONNECTIONS (CN1/CN2)
Pin 1 2 3 4 5 Symbol VSS V DD CS SID SCLK /RST LEDA LEDK Level 0V +5V H/L H/L H/L L +5V Power supply for LED backlight 0V GND Power supply for logic Chip enable signal, active "H" Serial data input Serial clock input Reset signal, active "L" Function
0.7VDD - 0.3 I OH = - 0.1mA 0.8VDD -I OL = 0.1mA -VDD = 5.0V -Ta=25°C
BLOCK DIAGRAM
6 7
VSS VDD CS SID SCLK /RST
LCD Controller LSI ST7920
32 COM
LCD PANEL 122 x 32 dots
8
64 SEG 58 SEG
ST7921
LED BACKLIGHT SPECIFICATIONS (Ta=25° C)
LEDA LEDK Item LED Backlight Forward Voltage Forward Current LED Color Symbol Vf If Typ. 3.1 30 White Max. 3.3 -Unit V mA
.