SG25664A ( 16 dots x 4 dots ) features mechanical data built-in controller (st7920) item dimensions unit +5 v power supply module size (w x h x t) 180.0 x 65.0 x 9.7 ( 13.8 led ) mm 1/64 duty cycle viewing area ( w x h ) 134.0 x 40.4 mm edge lighting type led backlight active area ( w x h ) 127.16 x 31.97 mm edge lighting type ccfl backlight dot size ( w x h ) 0.47 x 0.47 mm 20 chaacters * 4 lines dot pitch ( w x h ) 0.50 x 0.50 mm interface pin connections absolute maximum ratings no. symbol level function item symbol min. typ. max. unit 1v ss 0v power supply ground supply voltage for logic v dd -v ss -0.3 - 5.5 v 2v dd 5v power supply voltage supply voltage for lcd drive v dd -v o 0 - 7 v 3v o ? contrast adj input voltage v i -0.3 - v dd v 4rs h/l read select 5 r/w h/l read / write electrical characteristics 6 e1 h,h l enable signal ic1 item symbol condition min. typ. max. unit 7 e2 h,h l enable signal ic2 supply voltage for logic v dd -v ss - 4.5 5.0 5.5 v 8~15 db0~db7 h data bit 1~7 supply voltage for lcd v dd -v o v dd =5v ta=25 5.6 6.0 6.5 v 16 a 4.2v led power supply ( + ) supply current i dd v dd =5v - 16.0 25.0 ma 17 k 0v led power supply ( - ) input "high" level v ih - 2.2 - vdd v 18 nc - no connection voltage "low" level v il - - - 0.6 v 19 nc - no connection output "high" level v oh - 2.4 - - v 20 nc - no connection voltage "low" level v ol - - - 0.4 v external dimensions
|
