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BU97941FV-LB датащи(PDF) 10 Page - Rohm |
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BU97941FV-LB датащи(HTML) 10 Page - Rohm |
10 / 26 page Datasheet Datasheet 10/23 TSZ02201-0P4P0D300500-1-2 26.Feb.2014 Rev.002 www.rohm.com © 2013 ROHM Co., Ltd. All rights reserved. TSZ22111・15・001 BU97941FV-LB MAX 104 segments (SEG26×COM4) 2. (2)Display control command (DISCTL) MSB LSB D/C D6 D5 D4 D3 D2 D1 D0 Hex Reset 1st byte Command 1 0 0 0 0 0 1 0 82h - 2nd byte Command 0 0 0 0 P3 P2 P1 P0 - 02h Duty setting Setting P3 P2 Reset state 1/4duty (1/3bias) 0 0 ○ 1/3duty (1/3bias) 0 1 Static (1/1bias) 1 * (*: Don’t care) At 1/3duty setting, the display / blink data for COM3 are invalid. (COM3: same waveform with COM1) At 1/1duty (Static) setting, the display / blink data for COM1 to 3 are invalid. (Note) COM1 to 3: same waveform with COM0 Be careful in sending display data. For sample output waveform of SEG/COM with duty setting, see "Liquid crystal Display Waveform". Frame Frequency Setting Setting (When 1/4,1/3,1/1duty) P1 P0 Reset state (128Hz, 130Hz, 128Hz) 0 0 (85Hz, 86hz, 64Hz) 0 1 ○ (64Hz, 65Hz, 48Hz) 1 0 (51Hz, 52Hz, 32Hz) 1 1 The relationship with frame frequency (FR), internal osc frequency and dividing number is below: DISCTL (P1,P0) Divide FR [Hz] 1/4duty 1/3duty 1/1duty 1/4duty 1/3duty 1/1duty (0,0) 160 156 160 128 131.3 128 (0,1) 240 237 320 85.3 86.4 64 (1,0) 320 315 428 64 65 47.9 (1,1) 400 393 640 51.2 52.1 32 When calculating the OSC frequency from the measurement value of frame frequency, use the following equation: “ OSC frequency = Frame Frequency (Measurement value) × Dividing number” Dividing number: Using the values of Frame Frequency setting (P1, P0) and duty setting (P3, P2), determine the values from the table above. Ex) (P1,P0)= (0,1), (P3,P2)= (0,1) Dividing number= 237 (Note) The value of FR in the table above is the Frame Frequency calcuated as OSC Frequency = 20.48KHz (typ). |
Аналогичный номер детали - BU97941FV-LB |
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Аналогичное описание - BU97941FV-LB |
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