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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF8811U/2DA/1 датащи(PDF) 50 Page - NXP Semiconductors |
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PCF8811U/2DA/1 датащи(HTML) 50 Page - NXP Semiconductors |
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50 / 81 page  PCF8811_4 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 04 — 27 June 2008 50 of 81 NXP Semiconductors PCF8811 80 x 128 pixels matrix LCD driver Instead of using the VLCD offset pads (VOS[4:0]) the VLCD can be adjusted with the module maker calibration setting MMVOPCAL[4:0]; see Section 18. (4) Where: • TCUT is a reference temperature; see Section 12.11 • a is a fixed constant value; see Table 27 • b is a fixed constant value; see Table 27 • VOP[7:0] is the result of the conversion table • VOS[4:0]/MMVOPCAL[4:0] is the value of the offset VLCD pads or the value stored in the OTP cells Table 26. Example values of VPR, VOP and VOFF for VLCD = 6 V Register Value in Table 28 Binary value VPR[5:0] 15 0 1111 VOP[7:0] 100 110 0100 VOFF[2:0] 010 010 Table 27. Parameters of VLCD for the basic and extended command set Symbol Value Unit TCUT 40 °C b 0.03 V a3V V LCD T T CUT = () aV OS[4:0] V OP[7:0] + () b × + = |
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