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ST7920V3.1 40/42 2003/04/11Application circuit 1:LCD: 32 COM x 160 SEGLCD Voltage : VCC1 2 3 4 5 6ABCD654321DCBATitleNumberRevisionSizeBDate: 1-Mar-2001 Sheet ofFile: D:\Buffer-2\7920V1.DDB Drawn By:V01V12V23VXA4VXB5VXC6V37V48VSS9VDD10XRESET11CL112CL213VDD14M15DOUT16RS17RW18E19VSS20OSC121OSC222PSB23D024D125D226D327D428D529D630D731XOFF32VOUT33CAP3M34CAP1P35CAP1M36CAP2P37CAP2M38VD239C140C241C342C443C544C645C746C847C948C1049C1150C1251C1352C1453C1554C1655C1756C1857C1958C2059C2160C2261C2362C2463C2564C2665C2766C2867C2968C3069C3170C3271C3372S6473S6374S6275S6176S6077S5978S5879S5780S5681S5582S5483S5384S5285S5186S5087S4988S4889S4790S4691S4592S4493S4394S4295S4196S4097S3998S3899S37100S36101S35102S34103S33104S32105S31106S30107S29108S28109S27110S26111S25112S24113S23114S22115S21116S20117S19118S18119S17120S16121S15122S14123S13124S12125S11126S10127S9128S8129S7130S6131S5132S4133S3134S2135S1136U1ST7920S501S512S523S534S545S556S567S578S589S5910S6011S6112S6213S6314S6415S6516S6617S6718S6819S6920S7021S7122S7223S7324S7425S7526S7627S7728S7829S7930S8031S8132S8233S8334S8435S8536S8637S8738S8839S8940S9041S9142S9243S9344S9445S9546S9647S4848S4749S4650S4551S4452S4353S4254S4155S4056S3957S3858S3759S3660S3561S3462S3363S3264S3165S3066S2967S2868S2769S2670S2571S2472S2373S2274S2175S2076S1977S1878S1779S1680S1581S1482S1383S1284S1185S1086S987S888S789S690S591S492S393S294S195V096V297V398VSS99VDD100CL1101SHL1102SHL2103CL2104DL1105DR1106DL2107DR2108M109S49110U2ST7921C81C72C63C54C45C36C27C18S19S210S311S412S513S614S715S816S917S1018S1119S1220S1321S1422S1523S1624S1725S1826S1927S2028S4129S4230S4331S4432S4533S4634S4735S4836S4937S5038S5139S5240S5341S5442S5543S5644S5745S5846S5947S6048S8149S8250S8351S8452S8553S8654S8755S8856S8957S9058S9159S9260S9361S9462S9563S9664S9765S9866S9967S10068S12169S12270S12371S12472S12573S12674S12775S12876S12977S13078S13179S13280S13381S13482S13583S13684S13785S13886S13987S14088C1789C1890C1991C2092C2193C2294C2395C2496C997C1098C1199C12100C13101C14102C15103C16104S21105S22106S23107S24108S25109S26110S27111S28112S29113S30114S31115S32116S33117S34118S35119S36120S37121S38122S39123S40124S61125S62126S63127S64128S65129S66130S67131S68132S69133S70134S71135S72136S73137S74138S75139S76140S77141S78142S79143S80144S101145S102146S103147S104148S105149S106150S107151S108152S109153S110154S111155S112156S113157S114158S115159S116160S117161S118162S119163S120164S141165S142166S143167S144168S145169S146170S147171S148172S149173S150174S151175S152176S153177S154178S155179S156180S157181S158182S159183S160184C32185C31186C30187C29188C28189C27190C26191C25192L1WDG1603PC110412345678910111213141516JP1HEADER 1612JACON212JKCON2123J1CON3R14.7KR24.7KR32.2KR44.7KR54.7KR633KR72KR933R833VCCVCCVCCVCC12JP2HEADER 2VCCVCCC1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24C25C26C27C28C29C30C31C32S39S40S41S42S43S44S45S46S47S48S49S50S51S52S53S54S55S56S57S58S59S60S61S62S63S64S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15S16S17S18S19S20S21S22S23S24S25S26S27S28S29S30S31S32S33S34S35S36S37S38S65S66S67S68S69S70S71S72S73S74S75S76S77S78S79S80S81S82S83S84S85S86S87S88S89S90S91S92S93S94S95S96S97S98S99S100S101S102S103S104S105S106S107S108S109S110S111S112S113S114S115S116S117S118S119S120S121S122S123S124S125S126S127S128S129S130S131S132S133S134S135S136S137S138S139S140S141S142S143S144S145S146S147S148S149S150S151S152S153S154S155S156S157S158S159S160C25C26C27C28C29C30C31C32C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15S16S17S18S19S20S21S22S23S24S25S26S27S28S29S30S31S32S33S34S35S36S37S38S39S40S41S42S43S44S45S46S47S48S49S50S51S52S53S54S55S56S57S58S59S60S61S62S63S64S65S66S67S68S69S70S71S72S73S74S75S76S77S78S79S80S81S82S83S84S85S86S87S88S89S90S91S92S93S94S95S96S97S98S99S100S101S102S103S104S105S106S107S108S109S110S111S112S113S114S115S116S117S118S119S120S121S122S123S124S125S126S127S128S129S130S131S132S133S134S135S136S137S138S139S140S141S142S143S144S145S146S147S148S149S150S151S152S153S154S155S156S157S158S159S160Paul Yung1 11.2SitronixST7920 LCMR1010K
ST7920V3.1 41/42 2003/04/11Application circuit 2:LCD: 32 COM x 160 SEGLCD Voltage : VCC x 2(Voltage doubler is used)*Vlcd should not over 7v.1 2 3 4 5 6ABCD654321DCBATitleNumberRevisionSizeBDate: 17-Aug-2001 Sheet ofFile:D:\adom\Documents\sch\7920_B~13.DDB Drawn By:V01V12V23VXA4VXB5VXC6V37V48VSS9VDD10XRESET11CL112CL213VDD14M15DOUT16RS17RW18E19VSS20OSC121OSC222PSB23D024D125D226D327D428D529D630D731XOFF32VOUT33CAP3M34CAP1P35CAP1M36CAP2P37CAP2M38VD239C140C241C342C443C544C645C746C847C948C1049C1150C1251C1352C1453C1554C1655C1756C1857C1958C2059C2160C2261C2362C2463C2564C2665C2766C2867C2968C3069C3170C3271C3372S6473S6374S6275S6176S6077S5978S5879S5780S5681S5582S5483S5384S5285S5186S5087S4988S4889S4790S4691S4592S4493S4394S4295S4196S4097S3998S3899S37100S36101S35102S34103S33104S32105S31106S30107S29108S28109S27110S26111S25112S24113S23114S22115S21116S20117S19118S18119S17120S16121S15122S14123S13124S12125S11126S10127S9128S8129S7130S6131S5132S4133S3134S2135S1136U1ST7920S501S512S523S534S545S556S567S578S589S5910S6011S6112S6213S6314S6415S6516S6617S6718S6819S6920S7021S7122S7223S7324S7425S7526S7627S7728S7829S7930S8031S8132S8233S8334S8435S8536S8637S8738S8839S8940S9041S9142S9243S9344S9445S9546S9647S4848S4749S4650S4551S4452S4353S4254S4155S4056S3957S3858S3759S3660S3561S3462S3363S3264S3165S3066S2967S2868S2769S2670S2571S2472S2373S2274S2175S2076S1977S1878S1779S1680S1581S1482S1383S1284S1185S1086S987S888S789S690S591S492S393S294S195V096V297V398VSS99VDD100CL1101SHL1102SHL2103CL2104DL1105DR1106DL2107DR2108M109S49110U2ST7921C81C72C63C54C45C36C27C18S19S210S311S412S513S614S715S816S917S1018S1119S1220S1321S1422S1523S1624S1725S1826S1927S2028S4129S4230S4331S4432S4533S4634S4735S4836S4937S5038S5139S5240S5341S5442S5543S5644S5745S5846S5947S6048S8149S8250S8351S8452S8553S8654S8755S8856S8957S9058S9159S9260S9361S9462S9563S9664S9765S9866S9967S10068S12169S12270S12371S12472S12573S12674S12775S12876S12977S13078S13179S13280S13381S13482S13583S13684S13785S13886S13987S14088C1789C1890C1991C2092C2193C2294C2395C2496C997C1098C1199C12100C13101C14102C15103C16104S21105S22106S23107S24108S25109S26110S27111S28112S29113S30114S31115S32116S33117S34118S35119S36120S37121S38122S39123S40124S61125S62126S63127S64128S65129S66130S67131S68132S69133S70134S71135S72136S73137S74138S75139S76140S77141S78142S79143S80144S101145S102146S103147S104148S105149S106150S107151S108152S109153S110154S111155S112156S113157S114158S115159S116160S117161S118162S119163S120164S141165S142166S143167S144168S145169S146170S147171S148172S149173S150174S151175S152176S153177S154178S155179S156180S157181S158182S159183S160184C32185C31186C30187C29188C28189C27190C26191C25192L1WDG1603P+ C34.7u+C24.7uC110412345678910111213141516JP1HEADER 1612JACON212JKCON2123J1CON3R14.7KR24.7KR32.2KR44.7KR54.7KR633KR72KR933R833VCCVCCVCC12JP2HEADER 2VCCVCCC1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24C25C26C27C28C29C30C31C32S39S40S41S42S43S44S45S46S47S48S49S50S51S52S53S54S55S56S57S58S59S60S61S62S63S64S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15S16S17S18S19S20S21S22S23S24S25S26S27S28S29S30S31S32S33S34S35S36S37S38S65S66S67S68S69S70S71S72S73S74S75S76S77S78S79S80S81S82S83S84S85S86S87S88S89S90S91S92S93S94S95S96S97S98S99S100S101S102S103S104S105S106S107S108S109S110S111S112S113S114S115S116S117S118S119S120S121S122S123S124S125S126S127S128S129S130S131S132S133S134S135S136S137S138S139S140S141S142S143S144S145S146S147S148S149S150S151S152S153S154S155S156S157S158S159S160C25C26C27C28C29C30C31C32C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24S1S2S3S4S5S6S7S8S9S10S11S12S13S14S15S16S17S18S19S20S21S22S23S24S25S26S27S28S29S30S31S32S33S34S35S36S37S38S39S40S41S42S43S44S45S46S47S48S49S50S51S52S53S54S55S56S57S58S59S60S61S62S63S64S65S66S67S68S69S70S71S72S73S74S75S76S77S78S79S80S81S82S83S84S85S86S87S88S89S90S91S92S93S94S95S96S97S98S99S100S101S102S103S104S105S106S107S108S109S110S111S112S113S114S115S116S117S118S119S120S121S122S123S124S125S126S127S128S129S130S131S132S133S134S135S136S137S138S139S140S141S142S143S144S145S146S147S148S149S150S151S152S153S154S155S156S157S158S159S160Paul Yang1 11.4SitronixST7920 LCM (Booster)R1010K
Page 2 and 3: ST7920ST7920 Specification Revision
Page 5 and 6: ST7920Pin coordinatesNo. Name X Y1
Page 7 and 8: ST7920Pin DescriptionName No. I/O C
Page 9 and 10: ST7920Voltage doublerVssreference v
Page 11 and 12: ST7920Display data RAM(DDRAM)There
Page 13 and 14: ST7920DDRAM data(char. code)B B BB1
Page 15 and 16: ST7920GDRAM Vertical address(Y)0123
Page 17 and 18: ST7920Instruction set 2: (RE=1: ext
Page 19 and 20: ST7920Description of basic instruct
Page 21 and 22: ST7920• FUNCTION SETRS RW DB7 DB6
Page 23 and 24: ST7920Description of extended instr
Page 26 and 27: ST7920Serial interface :ST7920 is i
Page 28 and 29: ST79208 bit interface:POWER ONWait
Page 30 and 31: ST7920Built in voltage boosterVoutV
Page 32 and 33: ST7920Absolute Maximum RatingsChara
Page 34 and 35: ST7920AC Characteristics (T A = 25
Page 36 and 37: ST79208 bit interface timing diagra
Page 38 and 39: ST7920Serial interface timing diagr
Page 42: ST7920Application circuit 3:LCD: 2L

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