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FEDL9484-01 Datasheet(PDF) 10 Page - LAPIS Semiconductor Co., Ltd. |
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FEDL9484-01 Datasheet(HTML) 10 Page - LAPIS Semiconductor Co., Ltd. |
10 / 29 page FEDL9484-01 ML9484 10/29 DESCRIPTION Operation description • Display data input As described in the Data configuration section, the display data consists of the data field that corresponds to each segment on/off and the command field that indicates the display data input. When inputting the display data, the "F1" command is set in the command field. When the "F2" to "F5" command is set in the command field, the display data in the data field becomes invalid. The data input to the DATA pin is loaded to the shift register at the CLOCK pulse rise, transferred to the display data latch during the LOAD pulse at the "H" level, then output via the segment driver. D1 D2 D3 D4 D48 D49 D50 C0 C1 C2 C3 C4 CLOCK DATA New data LOAD Display output C5 Data field Old data Command field • Display on, Display off The display becomes off at power-on reset. To display, write the display on command. The display off is the command that makes all segments off. Writing the display off command turns off the lights regardless of the display data. The display on is the command to release the display off. Writing the display on command returns the display to the original state. D1 D2 C4 C2 C3 C4 C5 C2 C3 C4 C5 CLOCK DATA LOAD Display ON/OFF C5 RESETB Display data input Write display ON command Write Display OFF command |
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