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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PCF8553DTT/A датащи(PDF) 18 Page - NXP Semiconductors |
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PCF8553DTT/A датащи(HTML) 18 Page - NXP Semiconductors |
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18 / 51 page  NXP Semiconductors PCF8553 40 × 4 LCD segment driver aaa-011867 VSS VLCD VSS VLCD VSS VLCD VLCD - VLCD - VLCD VLCD state 1 0 V COM0 SEGn SEGn+1 state 2 0 V (a) Waveforms at driver. (b) Resultant waveforms at LCD segment. LCD segments state 1 (on) state 2 (off) Tfr Vstate1(t) = VSEGn(t) - VCOM0(t). Von(RMS) = VLCD. Vstate2(t) = V(SEGn + 1)(t) - VCOM0(t). Voff(RMS) = 0 V. Figure 10. Static drive mode waveforms 8.2.2.2 1:2 Multiplex drive mode When two backplanes are provided in the LCD, the 1:2 multiplex mode applies. The PCF8553 allows the use of 1⁄2 bias or 1⁄3 bias in this mode as shown in Figure 11 and Figure 12. PCF8553 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2021. All rights reserved. Product data sheet Rev. 4 — 20 April 2021 18 / 51 |
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