LG128645-DW
www.DataSheet4U.com
128 x 64 dots + white led backlight
built in Chinese font
ABSOLUTE MAXIMUM RATINGS
It...
LG128645-DW
www.DataSheet4U.com
128 x 64 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. 5.5 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 93.0 x 70.0 x 13.5 72.0 x 39.0 0.52 x 0.52 0.48 x 0.48 Approx. 75 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. 0.7VDD - 0.3 Typ. ----3.0 6.2 Max. Unit V DD 0.6 V DD 0.4 5.0 -V V V V mA V
PIN CONNECTIONS
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Symbol VSS V DD Vo RS R/W E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 PSB NC /RST V OUT LEDA LEDK Level 0V +5V -H/L H/L _ H,H >L H/L H/L H/L H/L H/L H/L H/L H/L H/L -L -+5V 0V Function GND Power supply for logic No connection H : Data L : Instruction code H : Read L : Write Enable signal
I OH = - 0.1mA 0.8VDD I OL = 0.1mA 0 -VDD = 5.0V -Ta=25° C
BLOCK DIAGRAM
Control Signals ST7921 RS(CS) R/W(SID) E(SCLK) PS /RST DB0 DB7 32 COM VDD VSS VO VOUT LEDA LEDK Power Circuit To LSI 32 SEG 96 SEG
Data bus line
LCD Controller LSI ST7920
64 SEG 32 COM
64 SEG
128 x 32 dots 128 x 32 dots
H: Para...