The WH1202 is designed as one kind of 12 x 2 character that has some points of features:(1)5 x 8 dots includes cursor;(2)built-in controller (KS0066 or equivalent);(3)+5 V power supply;(4)1/16 duty cycle;(5)LED can be driven by pin 1, pin 2, or pin 15, pin 16 or A and K;(6)N.V. optional for +3 V power supply. The mechanical data of this device can be summarized as:(1)module dimension: 55.7 mm x 32.0 mm;(2)viewing area: 46.0 mm x 14.5 mm;(3)mounting hole: 31.2 mm x 30.0 mm;(4)character size: 2.65 mm x 5.50 mm. The absolute maximum ratings and the electrical characteristics of the WH1202 can be summarized as:(1)power supply: -0.3 V to 7.0 V;(2)input voltage: -0.3 V to VDD V;(3)supply current: 1.3 mA to 1.5 mA;(4)LED forward voltage: 4.2 to 4.6 V;(5)LED forward current: 40 to 80 mA;(6)EL power supply current: 5.0 mA.