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PCF8545ATT/A датащи(PDF) 25 Page - NXP Semiconductors |
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PCF8545ATT/A датащи(HTML) 25 Page - NXP Semiconductors |
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25 / 72 page ![]() PCF8545 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved. Product data sheet Rev. 1 — 13 November 2013 25 of 72 NXP Semiconductors PCF8545 Universal LCD driver for multiplex rates up to 1:8 8.5.2 1:6 Multiplex drive mode When six backplanes are provided in the LCD, the 1:6 multiplex drive mode applies. The PCF8545 allows use of 1⁄3 bias or 1⁄4 bias in this mode as shown in Figure 15 and Figure 16. These waveforms are drawn for the case of line inversion (see Section 8.1.3.2). Vstate1(t) = VSn(t) VBP0(t). Vstate2(t) = VSn +1 (t) VBP0(t). Von(RMS)(t) = 0.509VLCD. Voff(RMS)(t) = 0.333VLCD. Fig 15. Waveforms for 1:6 multiplex drive mode with bias 1⁄3 and line inversion |
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