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LC75835W Scheda tecnica(PDF) 7 Page - Sanyo Semicon Device |
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LC75835W Scheda tecnica(HTML) 7 Page - Sanyo Semicon Device |
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7 / 35 page  LC75835W No.A0429-7/35 Pin Functions Symbol Pin No. Function Active I/O Handling when unused S1/P1 to S16/P16 S17 to S34 1 to 16 17 to 34 Segment outputs for displaying the display data transferred by serial data input. The S1/P1 to S16/P16 pins can be used as general-purpose output ports when so set up by the control data. - O OPEN COM1 to COM3 COM4/S35 38 to 36 35 Common driver output pins. The frame frequency is fo [Hz]. COM4/S35 can be used as segment output in 1/3 duty mode. - O OPEN OSCI 44 External clock input pin. A 15 to 65kHz clock must be supplied to this pin in external clock operating mode. This pin must be connected to ground in internal oscillator operating mode. - I GND CE CL DI 46 47 48 Serial data transfer inputs. Must be connected to the controller. CE: Chip enable CL: Synchronization clock DI: Transfer data H - I I I GND INH 45 Display off control input • INH = low (VSS) ...Display forced off S1/P1 to S16/P16 = low (VSS) (These pins are forcibly set to the general-purpose output port and held at the VSS level.) S17 to S34 = low (VSS) COM1 to COM3 = low (VSS) COM4/S35 = low (VSS) Shuts off current to the LCD drive bias voltage generation divider resistors. Stop the internal oscillation circuit. • INH = high (VDD)...Display on However, serial data transfer is possible when the display is forced off. L I GND VLCD1 41 Used to apply the LCD drive 2/3 bias voltage externally. Connect this pin to VLCD2 when using a 1/2-bias drive scheme. - I OPEN VLCD2 42 Used to apply the LCD drive 1/3 bias voltage externally. Connect this pin to VLCD1 when using a 1/2-bias drive scheme. - I OPEN VDD 39 Power supply pin for the logic circuit block. A power voltage of 2.7V to 3.6V must be applied to this pin. - - - VLCD 40 Power supply pin for the LCD driver block. A power voltage of 2.7V to 5.5 V must be applied to this pin. - - - VSS 43 Power supply pin. Must be connected to ground. - - - |
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