Holtek BS82B12A-3 - General Description; Selection Table; Watchdog Time� Clock so; Watchdog Time� Cont�Ol Registe

Rev. 1.20 6 January 23, 2015 Rev. 1.20 7 January 23, 2015
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
BS82B12A-3/BS82C16A-3/BS82D20A-3
Touch Key 8-Bit Flash MCU with LED/LCD Driver
General Description
These devices are aseriesofFlashMemorytype8-bithighperformanceRISCarchitecture
microcontrollerswithfullyintegratedtouchkeyfunctions.Withalltouchkeyfunctionsprovided
internallyandwiththeconvenienceofFlashMemorymulti-programmingfeatures,thesedevices
hasallthefeaturestoofferdesignersareliableandeasymeansofimplementingTouchKeyeswithin
theirproductsapplications.
Thetouchkeyfunctionsarefullyintegratedcompletelyeliminatingtheneedforexternal
components.Inadditiontotheflashprogrammemory,othermemoryincludesanareaofRAM
DataMemoryaswellasanareaofEEPROMmemoryforstorageofnon-volatiledatasuchas
serialnumbers,calibrationdataetc.ProtectivefeaturessuchasaninternalWatchdogTimer,Low
VoltageResetandLowVoltageDetectorfunctionscoupledwithexcellentnoiseimmunityandESD
protectionensurethatreliableoperationismaintainedinhostileelectricalenvironments.
AfullchoiceofHIRC,LIRCandLXToscillatorsareprovidedincludingafullyintefratedsystem
oscillatorwhichrequirenoexternalcomponentsfortheirimplementation.Theabilitytooperate
andswitchdynamicallybetweenarangeofoperatingmodesusingdifferentclocksourcesgives
userstheabilitytooptimisemicrocontrolleroperationandminimisepowerconsumption.Easy
communicationwiththeoutsideworldisprovidedusingthefullyintegratedI
2
Cinterfacefunctions,
whiletheinclusionofexibleI/Oprogrammingfeatures,TimerModulesandmanyotherfeatures
furtherenhancedevicefunctionalityandexibility.
TheUARTmoduleiscontainedinthesedevices.Itcansupporttheapplicationssuchasdata
communicationnetworksbetweenmicrocontrollers,low-costdatalinksbetweenPCsandperipheral
devices,portableandbatteryoperateddevicecommunication,etc.
ThesetouchkeydeviceswillfindexcellentuseinahugerangeofmodernTouchKeyproduct
applicationssuchasinstrumentation,householdappliances,electronicallycontrolledtoolstoname
butafew.
Selection Table
Mostfeaturesarecommontothesedevices,themainfeaturesdistinguishingthemareMemory
capacity,I/Ocount,LCDsegmentcount,TouchKeycount,stackcapacityandpackagetypes.The
followingtablesummarisesthemainfeaturesofeachdevice.
Part No. V
DD
Program
Memory
Data
Memory
Data
EEPROM
I/O
Ext.
Int.
LCD
Driver
Timer
Module
Touch
Key
I
2
C UART
Time
Base
Stack Package
BS82B12A-3
2.7V~
5.5V
2K×16 384×8 64×8 22 1 16×4
10-bit
CTM×1
10-bit
PTM×1
12 √ √ 2 6 20/24SOP
BS82C16A-3
2.7V~
5.5V
4K×16 512×8 64×8 26 1 20×4
10-bit
CTM×1
10-bit
PTM×1
16 √ √ 2 6 24/28SOP
BS82D20A-3
2.7V~
5.5V
8K×16 768×8 64×8 26 1 20×4
10-bit
CTM×1
10-bit
PTM×1
20 √ √ 2 8
24/28SOP
28SSOP