
Sitronix ST7038
Dot MatrixLCD Controller/Driver
Ver1.11/612007/01/25
FEATURES
l5 x 8dot matrixpossible
lSupportlowvoltage single poweroperation:
ØVDD, VDD2: 1.8to3.3V(typical)
lLCD Voltage Operation Range (V0/Vout)
ØProgrammable V0: 3 to 7V(V0)
ØExternalpowerapplied: Max. 12V(Vout)
lInterface
Ø6800-4bit / 8bitinterface
Ø8080-4bit / 8bitinterface
Ø3-line serialinterface
Ø4-line serialinterface
ØI
2
C interface
lSupportdisplay mode:
Ø8-COM x100-SEGand 80ICON
Ø16-COM x100-SEGand 80 ICON
Ø24-COM x80-SEGand 80 ICON
l10,240-bitCharacterGeneratorROM
(CGROM)stores 256characterfonts
l64 x 8-bitCharacterGeneratorRAM
(CGRAM)
l80 x 8-bitDisplayRAM(80 characters max.)
l16 x 5 bitICONRAM
lVariable instruction functions:
cleardisplay,returnhome, displayON/OFF,
cursorON/OFF,characterblink,cursorshift,
displayshift, doubleheightfont, ICONcontrol
and charactergeneration RAM
lResetcircuitthrough anexternal resetpin
lInternal oscillatororexternal clock
lBuilt-inlowpowerconsumption voltage
booster,regulatorand followercircuit
lBuilt-inhigh-accuracyvoltage regulator:
ØProgrammable outputrange: 3~7V
lCOM/SEGdirection selectable byinstruction
lSelectable CGRAM/CGROMsize
lPackage Type:COG
GENERALDESCRIPTION
ST7038 dot-matrixliquid crystal displaycontrollercan
displayalphanumeric,Japanesekanacharactersand
symbols.It can be configuredtodriveadot-matrixliquid
crystaldisplayunderthecontrol ofamicroprocessorwith
4/8-bit6800-seriesor8080-series,3/4-lineserialorfastI2C
interface.Sinceallthefunctions(suchasdisplayRAM,
charactergeneratorROM/RAMand liquidcrystaldriver)
required fordrivingadot-matrixliquidcrystaldisplayare
internallyembedded in thischip,aminimal systemcan be
usedwiththiscontroller/driver.
The CharacterGeneratorROM ofST7038 has256 5x8dot
cellsand stores256 differentcharacter fonts(5x8dot).
ST7038 issuitable forlowvoltage supply(1.8Vto3.3V) and
is perfectlysuitableforanyportableproductwhichisdriven
bythe batteryandrequireslowpower consumption.
The displayresolutionofST7038 dot-matrixLCD drivercan
be either1-linex20 characters,2-line x20 charactersor
3-linex16 characterswith80-bit ICON.
ST7038 works alone without extracascaded drivers.
ProductName Charactergenerator ROMSize SupportCharacter
ST7038-0B256 English/ Europe/ Japan
ST7038
6800-4bit/ 8bitinterface
8080-4bit/ 8bitinterface
3-line/4-lineserial interface
(withoutI2Cinterface)
ST7038iI
2
Cinterface