external dimension features interface ?display construction: 16 characters * 4 lines ?display mode: tn/stn ?display type: positive transflective ?backlight: led/4.2vdc ?viewing direction: 6 o?clock operating temperature: pin no. symbol description function 1 vss ground 0v (gnd) 2vcc power supply for logic circuit +5v 3vee lcd contrast adjustment block diagram ? operating temperature: i n d oo r ?driving voltage: single power ?driving method: 1/16 duty,1/4 bias ?type: cob (chip on board) ?number of data line: 8-bit parallel ?connector: pin adjustment 4rs instruction/data register selection rs = 0 : instruction register rs = 1 : data register 5 r/w read/write selection r/w = 0 : register write r/w = 1 : register read 6 e enable signal 7 db0 8 db1 9 db2 10 db3 11 db4 12 db5 13 db6 14 db7 15 led+ supply voltage for led+ +5v 16 led- supply voltage for led- 0v data input/output lines 8 bit: db0-db7 jhd ?? shenzhen jing handa electronics co.,ltd fax:+86-755-83779544 tel:+86-755-61361995 model no.: JHD539-164B
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