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REVISIONS NO. DATE 01/06/18 1
BY A. CH
DESCRIPTION NEW RELEASE
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RS R/W E DB0-DB7 /RST VDD VSS V0 LED + LED 32 COM
SEGMENT DRIVER ST7920
LED/EL BACKLIGHT
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64 SEG
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* FOR LED BACKLIGHT T1=14. 0MAX T2=9. 0±0. 3 * FOR EL OR NO BACKLIGHT T1=10. 0MAX T2=5. 0±0. 3
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ITEM ITEM
PINS ASSIGNMENT NO. SYSBOL DESCRIPTION
VSS VDD V0 RS R/W E DB0--DB7 /RST NC LED + LED POWER SUPPLY POWER SUPPLY OPERATING VOLTAGE FOR LCD DATA/INSTRUCTION SELECT READ/WRITE CONTROL ENABLE SIGNAL DATA BUS RESET SIGNAL NO CONNECT POWER SUPPLY FOR LED BACKLIGHT (+) POWER SUPPLY FOR LED BACKLIGHT (-)
ABSOLUTE MAXIMUM RATING SYMBOL
VDD-VSS VLCD Vi
MIN MAX UNIT
-0. 3 -0. 3 -0. 3 5. 5 7. 0 VDD V V V
POWER SUPPLY(LOGIC) POWER SUPPLY(LCD DRV. ) INPUT VOLTAGE
ELECTRICAL CHARACTERISTICS (VDD=5. 0±0. 25V, 25C)
VOLTAGE FOR LOGIC SUPPLY CURRENT VOLTAGE FOR LCD INPUT VOLTAGE OUTPUT VOLTAGE H L H L
SYMBOL MIN TYP MA...