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PCF8576DT/2 Datasheet(PDF) 12 Page - NXP Semiconductors |
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PCF8576DT/2 Datasheet(HTML) 12 Page - NXP Semiconductors |
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12 / 57 page  PCF8576D All information provided in this document is subject to legal disclaimers. © NXP B.V. 2013. All rights reserved. Product data sheet Rev. 14 — 10 June 2013 12 of 57 NXP Semiconductors PCF8576D Universal LCD driver for low multiplex rates 7.4 LCD drive mode waveforms 7.4.1 Static drive mode The static LCD drive mode is used when a single backplane is provided in the LCD. The backplane (BPn) and segment drive (Sn) waveforms for this mode are shown in Figure 7. (1) Vstate1(t) = VSn(t) VBP0(t). (2) Von(RMS) = VLCD. (3) Vstate2(t) = VSn+1(t) VBP0(t). (4) Voff(RMS) = 0 V. Fig 7. Static drive mode waveforms mgl745 VSS VLCD VSS VLCD VSS VLCD VLCD −VLCD −VLCD VLCD state 1 0 V BP0 Sn Sn+1 state 2 0 V (a) Waveforms at driver. (b) Resultant waveforms at LCD segment. LCD segments state 1 (on) state 2 (off) Tfr |
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