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ST7528 Datasheet(PDF) 33 Page - Sitronix Technology Co., Ltd. |
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ST7528 Datasheet(HTML) 33 Page - Sitronix Technology Co., Ltd. |
33 / 97 page ST7528 Ver2.3 33/97 2007/1/3 LCD DISPLAY CIRCUITS FRC (Frame Rate Control) and PWM (Pulse Width Modulation) Function Circuit The ST7528 incorporates an FRC function and a PWM function circuit to display a 16-level gray scale. The FRC function and PWM utilize liquid crystal characteristics whose transmittance is changed by an effective value of applied voltage. The ST7528 provides palette-registers to assign the desired gray level. These registers are set by the instructions and the RESETB. ST7528-- 4FRC & 3FRC / 45PWM, 60PWM − Gray Scale Table of 4 FRC (Frame Rate Control) 4 FRC setting (DB7 to DB0) 1st FR (FR1) Set 1 st Frame Pulse Width Modulation Instruction 1st FR (FR1) Set 1 st Frame Pulse Width Modulation Data 2nd FR (FR2) Set 2 nd Frame Pulse Width Modulation Instruction 2nd FR (FR2) Set 2 nd Frame Pulse Width Modulation Data 3rd FR (FR3) Set 3 rd Frame Pulse Width Modulation Instruction 3rd FR (FR3) Set 3 rd Frame Pulse Width Modulation Data 4th FR (FR4) Set 4 th Frame Pulse Width Modulation Instruction 4th FR (FR4) Set 4 th Frame Pulse Width Modulation Data − Gray Scale Table of 3 FRC (Frame Rate Control) 3 FRC setting (DB7 to DB0) 1st FR (FR1) Set 1 st Frame Pulse Width Modulation Instruction 1st FR (FR1) Set 1 st Frame Pulse Width Modulation Data 2nd FR (FR2) Set 2 nd Frame Pulse Width Modulation Instruction 2nd FR (FR2) Set 2 nd Frame Pulse Width Modulation Data 3rd FR (FR3) Set 3 rd Frame Pulse Width Modulation Instruction 3rd FR (FR3) Set 3 rd Frame Pulse Width Modulation Data 4th FR (FR4) No used 4th FR (FR4) No used |
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