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EL9200ILZ Datasheet(PDF) 11 Page - Intersil Corporation |
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EL9200ILZ Datasheet(HTML) 11 Page - Intersil Corporation |
11 / 15 page 11 FN7438.1 October 30, 2008 more than 200µs. The output sink current will decrease and the VCOM level will increase by one LSB. To avoid unintentional adjustment, the EL9200, EL9201, and EL9202 guarantees to reject CTL pulses shorter than 20µs. Since the internal comparators come up in an unknown state, the very first CTL pulse is ignored to avoid the possibility of a false pulse. See Figure 27 for the timing information. FIGURE 27. VCOM ADJUSTMENT TABLE 1. TRUTH TABLE INPUT OUTPUT CTL CE VDD SET ICC MEMORY Mid to Hi Hi VDD Decrement Normal X Mid to Lo Hi VDD Increment Normal X XLo VDD No Change Lower X > 4.9V X VDD No Change Increased Program X X 0 to VDD Read Increased Read NOTE: CE should be disabled (pulled low) before powering down the device to assure that the glitches and transients will not cause unwanted EEPROM overwriting. CTL HIGH VDD/2 CTL LOW 78 79 7A 7B 7A UNDEF CTLIHMPW CTLILRPW CTLILMPW CTLMTC CTLIHRPW CTL CE COUNTER OUTPUT VCOM EL9200, EL9201, EL9202 |
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