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LG122323
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Built 8192 Chinese Fonts
Item Supply Voltage(Logic) Supply Voltage(LCD) Input Voltage Operating Temp. Storage Temp. Symbol Topr Tstg Min. -0.3 -0.3 -0.3 Max. Unit
MECHANICAL DATA
Item Nominal Dimensions Unit Module Size 84.0 44.0 9.5/13.5 60.5 18.5 Viewing Area Pitch 0.44 0.49 0.40 0.45 Size Weight (Reflective/LED) Approx.
ELECTRICAL CHARACTERISTICS
Item Input High Voltage Input Voltage Output High Voltage Output Voltage Supply Current Driving Voltage Symbol Test Condition -Min.
Typ. -3.0 Max. Unit
CONNECTIONS
Symbol (CS) (SID) E(SCLK) /RST LEDA LEDK Level -H/L Function Supply Voltage Logic connection Data Instruction code (Chip enable serial mode) Read Write (Serial data serial mode) Enable (Clock serial mode
0.7VDD 0.1mA 0.8VDD 0.1mA -VDD 5.0V -Ta=25
BLOCK DIAGRAM
RS(CS) R/W(SID) E(SCLK) /RST
Controller ST7920
PANEL dots
Data line
Parallel mode Serial mode Reset signal, active Power supply backlight
ST7921
BACKLIGHT SPECIFICATIONS (Ta=25
LEDA LEDK Item Backlight Forward Voltage Forward Current Emission Wave Length Symbol Typ. Max. -Unit
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