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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ST7712 датащи(PDF) 17 Page - Sitronix Technology Co., Ltd. |
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ST7712 датащи(HTML) 17 Page - Sitronix Technology Co., Ltd. |
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17 / 113 page  ST7712 Ver 2.3 17/113 2007/07/19 Vcom2 current with amplitude VcomH-VcomL. The alternating cycle is changeable with register setting. The COM register controls the operation start/halt. command electrode VcomH O This pin indicates a high level of Vcom generated in driving the Vcom alternation. 3 Stabilizing Capacitor VcomL O When the Vcom alternation is driven, this pin indicates a low level of Vcom. An internal register can be used to adjust the voltage. 3 Stabilizing Capacitor VcomR I Use to adjust VcomH with an external variable resistor. To adjust VcomH, place a variable resistor between VREG1OUT and GND. 1 Variable resistor or open VGS I A reference level for the grayscale voltage generating circuit. 2 GND VMON -- Test pin. Leave open. 1 Open VLPWR -- Test pin. Connect to capacitors externally or leave open. 1 Capacitor or open REGP -- Test pin. Leave open. 1 Open VSSF -- For Vcom voltage fine tune by trim fuse 1 Open FUS0~4 -- Test pin. Leave open. 5 Open FUSA0~A4 -- For Vcom voltage fine tune by trim fuse 4 Open VDDO -- Test pin. Connect to capacitors externally 2 Capacitor or open IOVccDUM1 O Internal IOVcc level. Use to fix the electric potential for unused interface or fixed pins . When not used, leave open. 2 Open IOGNDDUM1,2 O Internal GND level. Use to fix the electric potential for unused interface or fixed pins. When not used, leave open. 4 Open VCMDUMMY1,2 -- A power supply for the TFT common electrode. Output an alternating current with amplitude VcomH-VcomL. The alternating cycle is changeable with register setting. The COM register controls the operation start/halt. 2 Open DUMMYA,B,C,D -- DUMMY pad, When no used, leave open 4 open DUMMY1,2,3,4,5,6,7,8,9 -- DUMMY pad, When no used, leave open 9 open |
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