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FEDL9298-01 Datasheet(PDF) 7 Page - List of Unclassifed Manufacturers |
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FEDL9298-01 Datasheet(HTML) 7 Page - List of Unclassifed Manufacturers |
7 / 12 page FEDL9298-01 LAPIS Semiconductor ML9298 7/12 FUNCTIONAL DESCRIPTION Time Base Built-in 4.194304MHz crystal oscillation circuit (AMP, feedback resistor) * Keep crystal and external capacitors as close to this LSI as possible to minimize connection wiring. * The values of external components, such as crystal and capacitors, should be determined including capacitance of user's circuit boards. It is recommended to contact a crystal manufacturer. 7-Segment Display Format Display Device Dynamic drive 4-digit fluorescent display tube (with colon) Relationship Between Anode/Grid Output and Display Brightness Switching Function 4-level brightness settings (frequency 256 Hz, gap between GR1 and GR2 at 1/2 duty 32 s) Switch pin name DIM1 DIM2 Operating mode L L f = 256 Hz, 1/2 duty (50 display) H L f = 256 Hz, 1/4 duty (25 display) L H f = 256 Hz, 1/8 duty (12.5 display) H H f = 256 Hz, 1/16 duty (6.25 display) Display Mode 4-digit hour and minute display in 12-hour system Hour display ·················· 1 to 12 Minute display ············ 00 to 59 No time display when the most significant digit is 0 (Most Significant Digit Zero Suppress function) A B C D E F G (7 segments) GR2 GR1 2c digit2 2f 2a 2g 2d 2e 2b col col colon 3f 3a 3g 3d 3e 3b 3c digit3 4b 4c digit4 1f 1a 1g 1d 1b 1c digit1 1e |
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