The WG240128F is designed as one kind of graphic 240 x 128 dots device. This device has four points of features:(1)built-in controller TOSHIBA;(2)+5 V power supply;(3)1/64 duty cycle;(4)N.V. built-in. And the machanical data of the WG240128F can be summarized as:(1)module dimension: 170.0 mm x 93.6 mm;(2)viewing area: 128.0 mm x 75.0 mm;(3)mounting hole: 138 mm x 99.0 mm;(4)dot pitch: 0.45 mm x 0.45 mm. The absolute maximum ratings and the electrical characteristics of this device can be summarized as:(1)power supply: 4.75 to 5.25 V;(2)input voltage: -0.3 V to VDD V;(3)supply current: 55.0 to 60.0 mA;(4)LED forward voltage: 4.2 V;(5)LED forward current: 900 mA to 1800 mA;(6)EL power supply current: 5.0 mA.