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SC75823A Datasheet(PDF) 6 Page - Silan Microelectronics Joint-stock |
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SC75823A Datasheet(HTML) 6 Page - Silan Microelectronics Joint-stock |
6 / 16 page Silan Semiconductors SC75823 HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.1 2002.03.04 6 PIN DESCRIPTION Pin No Symbol I/O Description 1-52 S1 to S52 O Segment outputs for displaying the display data transferred by serial data input. 53 COM1 54 COM2 55 COM3 O Common driver outputs. The frame frequency fO is given by: fO=(fOSC/384)Hz 61 OSC I/O Oscillator connection An oscillator circuit is formed by connecting an external resistor and capacitor to this pin. 62 CE CE: chip enable 63 CL CL: synchronization clock 64 DI I Serial data transfer inputs. These pins are connected to the control microprocessor. DI: transfer data 57 INH I Display off control input INH =low (VSS)……Display forced off (S1 to S52, COM1 to COM3=low) INH =high (VDD)……Display on note that serial data transfers can be performed when the display is forced off. 58 VDD1 I Used for the 2/3 bias voltage when bias voltage are provided externally. Connect to VDD2 when 1/2 bias is used. 59 VDD2 I Used for the 1/3 bias voltage when bias voltage are provided externally. Connect to VDD1 when 1/2 bias is used. 56 VDD -- Power supply. Provide a voltage of between 4.5 and 6.0V 60 VSS -- Ground. Connect this pin to the system ground. FUNCTION DESCRIPTION Serial data transfer format 1. When CL is stopped at the low level CE CL DI CCB address 8 bits Display data 156 bits Control data 4 bits 100 0001 0 D1 D2 D3 D154 D155 D156 DR SC BU * *: don't care B0 B1 B2 B3 A0 A1 A2 A3 |
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