HT16C21规格书.pdf

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1、HT16C21RAMMapping20*4/16*8LCDDriverControllerFeatureApplications●Operatingvoltage:2.4~5.5V●Electronicmeter●Internal32kHzRCoscillator●Watermeter●Bias:1/3or1/4;Duty:1/4or1/8●Gasmeter●InternalLCDbiasgenerationwithvoltage-●Heatenergymeterfollowerbuffers●Householdappliance●I2Cinterface●Games●Two

2、selectableLCDframefrequencies:80Hzor●Telephone160Hz●Consumerelectronics●Upto16x8bitsRAMfordisplaydatastorage●Displaypatterns:–20x4patterns:20segmentsand4commonsGeneralDescription–16x8patterns:16segmentsand8commonsTheHT16C21deviceisamemorymappingand●Versatileblinkingmodesmulti-functionLCDcon

3、troller/driver.Thedisplaysegmentsofthedeviceare80patterns(20segments●R/Waddressautoincrementand4commons)or128patterns(16segmentsand8●Internal16-stepvoltageadjustmenttoadjustLCDoperatingvoltagecommons).ThesoftwareconfigurationfeatureoftheHT16C21devicemakesitsuitableformultipleLCD●Lowpowercon

4、sumptionapplicationsincludingLCDmodulesanddisplay●ProvidesVLCDpintoadjustLCDoperatingvoltagesubsystems.TheHT16C21devicecommunicateswith●ManufacturedinsilicongateCMOSprocessmostmicroprocessors/microcontrollersviaatwo-line●PackageType:20/24/28SOP,16NSOPandChip.bidirectionalI2Cinterface.Rev.1.

5、001November22,2011HT16C21BlockDiagramVSSPower_onresetCOM0SDAInternalRCOscillatorColumnSCL/SegmentI2CTimingCOM3generatordriverControlleroutputCOM4/SEG08DisplayRAM16*8bitsCOM7/SEG3VDD－InternalOP4voltage＋SEG4adjustmentVLCDR－OP3＋LCDVoltageSegmentR－SelectordriverOP2output＋R－OP1＋SEG19RLCDbiasgene

6、ratorRev.1.002November22,2011HT16C21PinAssignmentVDD128SEG19/VLCDSDA227SEG18VDD124SEG19/VLCDSCL326SEG17SDA223SEG18VSS425SEG16SCL322SEG15COM0524SEG15VSS421SEG14COM1623SEG14COM0520SEG13COM2722SEG13COM1619SEG12COM3821SEG12COM2718SEG11COM4/SEG0920SEG11COM3817SEG10COM5/SEG11019SEG10COM4/SEG0916S

7、EG7COM6/SEG21118SEG9COM5/SEG11015SEG6COM7/SEG31217SEG8COM6/SEG21114SEG5SEG41316SEG7COM7/SEG31213SEG4SEG51415SEG6HT16C21HT16C2124SOP-A28SOP-AVDD120SEG19/VLCDSDA219SEG18VDD116SEG19/VLCDSCL318SEG13SDA215SEG14VSS417SEG12SCL314SEG13COM0516SEG11VSS413SEG12COM1