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PCF2113DU/2/F4 数据表(PDF) 19 Page - NXP Semiconductors |
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PCF2113DU/2/F4 数据表(HTML) 19 Page - NXP Semiconductors |
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19 / 65 page  PCF2113_FAM_4 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 04 — 4 March 2008 19 of 65 NXP Semiconductors PCF2113x LCD controllers/drivers 8.13 Timing generator The timing generator produces the various signals required to drive the internal circuitry. Internal chip operation is not disturbed by operations on the data buses. 8.14 LCD row and column drivers The PCF2113x contains 18 row and 60 column drivers, which connect the appropriate LCD bias voltages in sequence to the display in accordance with the data to be displayed. R17 and R18 drive the icon rows. The bias voltages and the timing are selected automatically when the number of lines in the display is selected. Figure 14, Figure 15, Figure 16 and Figure 17 show typical waveforms. Unused outputs should be left unconnected. Fig 12. Cursor and blink display examples Bit Q = 1 Fig 13. Example of a display with icons mga801 cursor 5 x 7 dot character font alternating display Cursor display example Blink display example 001aah687 cursor row 1 row 2 row 8 row 17 icon 1 icon 5 |
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