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HT9B95 датащи(PDF) 26 Page - Holtek Semiconductor Inc

номер детали HT9B95
подробное описание детали  RAM Mapping 39횞8 / 43횞4 LCD Driver
PDF  32 Pages
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производитель  HOLTEK [Holtek Semiconductor Inc]
домашняя страница  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT9B95 датащи(HTML) 26 Page - Holtek Semiconductor Inc

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Rev. 1.10
26
November 25, 2015
HT9B95A/B/G
Power Supply Sequence
• IfthepowerisindividuallysuppliedontheLCDandVDDpins,itisstronglyrecommendedtofollowthe
Holtekpowersupplysequencerequirement.
• Ifthepowersupplysequencerequirementisnotfollowed,itmayresultinmalfunction.
HoltekPowerSupplySequenceRequirement:
1.Power-onsequence:
TurnonthelogicpowersupplyVDDfirstandthenturnontheLCDdriverpowersupplyVLCD.
2.Power-offsequence:
TurnofftheLCDdriverpowersupplyVLCD.FirstandthenturnoffthelogicpowersupplyVDD.
3.TheHoltekPowerSupplySequenceRequirementmustbefollowednomatterwhethertheVLCDvoltageis
higherthantheVDDvoltage.
• WhentheVLCDvoltageissmallerthanorisequaltoVDDvoltageapplication
Voltage
Time
VLCD
VDD
1µs
VDD
VLCD
1µs
• WhentheVLCDvoltageisgreaterthanVDDvoltageapplication
VLCD
1µs
VDD
VLCD
1µs
Time
VDD
Voltage



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