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STM8AL3136 bảng dữ liệu(PDF) 94 Page - STMicroelectronics |
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STM8AL3136 bảng dữ liệu(HTML) 94 Page - STMicroelectronics |
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94 / 124 page ![]() Electrical parameters STM8AL313x/4x/6x STM8AL3L4x/6x 94/124 DocID18474 Rev 7 9.3.9 LCD controller (STM8AL3Lxx only) In the following table, data are guaranteed by design and are not tested in production. VLCD external capacitor (STM8AL3Lxx only) The application can achieve a stabilized LCD reference voltage by connecting an external capacitor CEXT to the VLCD pin. CEXT is specified in Table 48. Table 48. LCD characteristics Symbol Parameter Min Typ Max. Unit VLCD LCD external voltage - - 3.6 V VLCD0 LCD internal reference voltage 0 - 2.6 - VLCD1 LCD internal reference voltage 1 - 2.7 - VLCD2 LCD internal reference voltage 2 - 2.8 - VLCD3 LCD internal reference voltage 3 - 2.9 - VLCD4 LCD internal reference voltage 4 - 3.0 - VLCD5 LCD internal reference voltage 5 - 3.1 - VLCD6 LCD internal reference voltage 6 - 3.2 - VLCD7 LCD internal reference voltage 7 - 3.3 - CEXT VLCD external capacitance 0.1 - 2 µF IDD Supply current(1) at VDD = 1.8 V 1. LCD enabled with 3 V internal booster (LCD_CR1 = 0x08), 1/4 duty, 1/3 bias, division ratio= 64, all pixels active, no LCD connected. -3 - µA Supply current(1) at VDD = 3 V - 3 - RHN (2) 2. RHN is the total high value resistive network. High value resistive network (low drive) - 6.6 - M Ω RLN (3) 3. RLN is the total low value resistive network. Low value resistive network (high drive) - 360 - k Ω V33 Segment/Common higher level voltage - - VLCDx V V23 Segment/Common 2/3 level voltage - 2/3VLCDx - V12 Segment/Common 1/2 level voltage - 1/2VLCDx - V13 Segment/Common 1/3 level voltage - 1/3VLCDx - V0 Segment/Common lowest level voltage 0 - - |
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