RS08KB: 8-bit RS08KB Family of Microcontrollers (MCUs)

Our RS08KB 8-bit microcontroller (MCU) family features an integrated peripheral set that includes a highly efficient RS08 core to support interrupt capability, helping to improve system performance and save additional components costs. The RS08KB family eases migration by offering multiple package and flash size options, along with pin compatibility with other 5-volt families and the CodeWarrior® development tool to support other all 8-bit families.

NXP® S08KB Microcontroller Block Diagram
Recommended Documentation (3)
Name/DescriptionTypeModified Date
MC9RS08KB12/8/4/2 - Fact sheet (REV 0) PDF (586.3 kB) MC9RS08KBFSFact Sheets13 Jan 2010
MC9RS08KB12, MC9RS08KB8, MC9RS08KB4, MC9RS08KB2 - Reference Manual (REV 4) PDF (3.3 MB) MC9RS08KB12RMReference Manuals07 Feb 2012
MC9RS08KB12 Data Sheet: Technical Data (REV 5.1) PDF (568.1 kB) MC9RS08KB12Data Sheets07 Aug 2014
Data Sheets (2)
Name/DescriptionModified Date
MC9RS08KB12 Data Sheet: Technical Data (REV 5.1) PDF (568.1 kB) MC9RS08KB1207 Aug 2014
MC9RS08KB12 Data Sheet: Technical Data (REV 5) PDF (952.5 kB) MC9RS08KB12R507 Feb 2012
Errata (1)
Name/DescriptionModified Date
Mask Set Errata for Mask 0M29W (REV 1) PDF (138.9 kB) RS08KB_0M29W19 Sep 2013
Application Notes (4)
Name/DescriptionModified Date
AN5233, Isolator Board for In-Circuit Debugging & Programming tools of NXP® MCUs & MPUs - Application... (REV 0) PDF (2.0 MB) AN523316 Dec 2015
AN4752, FreeMASTER Serial Driver Usage - Application Note (REV 0) PDF (2.1 MB) AN475231 May 2013
AN4753, Rational ClearCase Use in CodeWarrior® 10.3 - Application Note (REV 0) PDF (392.5 kB) AN475330 May 2013
Enabling a Single Global Interrupt Vector on the RS08 Platform (REV 0) PDF (41.2 kB) AN403218 Feb 2010
Reference Manuals (1)
Name/DescriptionModified Date
MC9RS08KB12, MC9RS08KB8, MC9RS08KB4, MC9RS08KB2 - Reference Manual (REV 4) PDF (3.3 MB) MC9RS08KB12RM07 Feb 2012
Fact Sheets (1)
Name/DescriptionModified Date
MC9RS08KB12/8/4/2 - Fact sheet (REV 0) PDF (586.3 kB) MC9RS08KBFS13 Jan 2010
Product Change Notices (2)
Name/DescriptionModified Date
TJN QFN PACKAGE LEAD FRAME CHANGE FOLLOW COPPER WIRE CONVERSION FOR MICROCONTROLLER DEVICES (REV 0) HTM (11.9 kB) PCN16235A09 Jul 2014
Copper Wire Conversion for Microcontroller and Microprocessor Devices (REV 0) HTM (311.5 kB) PCN1623520 May 2014
Updates and Patches
Ordering Information
ProductStatusStatusPackage Type and Termination CountBudgetary Price excluding tax(US$)Internal Flash (KB)Internal RAM (KB)EEPROM (KB)Core TypeOperating Frequency (Max) (MHz)Bus Frequency (Max) (MHz)I2CSPISupply Voltage (Min-Max) (V)GPIOsAmbient Operating Temperature (Min-Max) (°C)Timer FeaturesAdditional Features
MC9RS08KB8CWJActiveSOIC 2010K @ US$0.6580.254RS08201011.8 to 5.518-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB12CTGActiveTSSOP 1610K @ US$0.65120.254RS08201011.8 to 5.514-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB12CSGActiveSOIC 1610K @ US$0.63120.254RS08201011.8 to 5.514-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB12CWJActiveSOIC 2010K @ US$0.68120.254RS08201011.8 to 5.518-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB8CTGActiveTSSOP 1610K @ US$0.6580.254RS08201011.8 to 5.514-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB4CTGActiveTSSOP 1610K @ US$0.5840.126RS08201011.8 to 5.514-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB4CSGActiveSOIC 1610K @ US$0.5740.126RS08201011.8 to 5.514-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB2CSCRActiveSOIC 810K @ US$0.4320.126RS08201011.8 to 5.56-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB4CFKActiveQFN-EP 2410K @ US$0.5740.126RS082011.8 to 5.518-40 to 85
MC9RS08KB4CWJActiveSOIC 2010K @ US$0.5840.126RS08201011.8 to 5.518-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB8CSGActiveSOIC 1610K @ US$0.6380.254RS08201011.8 to 5.514-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB12CFKActiveQFN-EP 2410K @ US$0.65120.254RS082011.8 to 5.518-40 to 85
MC9RS08KB2CSCActiveSOIC 810K @ US$0.4320.126RS08201011.8 to 5.56-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
MC9RS08KB2CDCActiveDFN-EP 810K @ US$0.4320.126RS08201011.8 to 5.56-40 to 85WatchdogAnalog Comparator, Low Voltage Detect
Package Information
Package DescriptionOutline VersionPackingProduct StatusPart NumberChemical ContentRoHS / Pb FreeChina RoHS LookupMSLPPT (°C)
SOIC 20W98ASB42343BMPQ - 38 RAILPOQ - 1900 BOXActiveMC9RS08KB12CWJMC9RS08KB12CWJ.pdf3260
MPQ - 38 RAILPOQ - 1900 BOXActiveMC9RS08KB8CWJMC9RS08KB8CWJ.pdf3260
MPQ - 38 RAILPOQ - 1900 BOXActiveMC9RS08KB4CWJMC9RS08KB4CWJ.pdf3260
SOIC16 3.9*9.9*1.75P1.2798ASB42566BMPQ - 48 RAILPOQ - 2400 BOXActiveMC9RS08KB12CSGMC9RS08KB12CSG.pdf3260
MPQ - 48 RAILPOQ - 2400 BOXActiveMC9RS08KB8CSGMC9RS08KB8CSG.pdf3260
MPQ - 48 RAILPOQ - 2400 BOXActiveMC9RS08KB4CSGMC9RS08KB4CSG.pdf3260
TSSOP 16 4.4*5*1.0P0.6598ASH70247AMPQ - 96 RAILPOQ - 2880 BOXActiveMC9RS08KB12CTGMC9RS08KB12CTG.pdf3260
MPQ - 96 RAILPOQ - 2880 BOXActiveMC9RS08KB4CTGMC9RS08KB4CTG.pdf3260
MPQ - 96 RAILPOQ - 2880 BOXActiveMC9RS08KB8CTGMC9RS08KB8CTG.pdf3260
DFN-EP 8 4*4*0.9 P0.898ASA00672DMPQ - 2450 BRICKPOQ - 2450 BOXActiveMC9RS08KB2CDCMC9RS08KB2CDC.pdf3260
SOICN 8 3.9*4.9*1.7598ASB42564BMPQ - 98 RAILPOQ - 2450 BOXActiveMC9RS08KB2CSCMC9RS08KB2CSC.pdf3260
MPQ - 2500 REELPOQ - 2500 BOXActiveMC9RS08KB2CSCRMC9RS08KB2CSCR.pdf3260
QFN MAP 24 4*4*0.65 P0.598ASA00602DMPQ - 2450 BRICKPOQ - 2450 BRICKActiveMC9RS08KB12CFKMC9RS08KB12CFK.pdf3260
MPQ - 490 TRAYPOQ - 2450 BOXActiveMC9RS08KB4CFKMC9RS08KB4CFK.pdf3260
MC9RS08KB12 Data Sheet: Technical Data rs08kb
MC9RS08KB12 Data Sheet: Technical Data rs08kb
Mask Set Errata for Mask 0M29W rs08kb
AN5233, Isolator Board for In-Circuit Debugging & Programming tools of NXP® MCUs & MPUs - Application... S08SL
AN4752, FreeMASTER Serial Driver Usage - Application Note S08SV
AN4753, Rational ClearCase Use in CodeWarrior® 10.3 - Application Note S08SV
Enabling a Single Global Interrupt Vector on the RS08 Platform rs08kb
MC9RS08KB12, MC9RS08KB8, MC9RS08KB4, MC9RS08KB2 - Reference Manual rs08kb
MC9RS08KB12/8/4/2 - Fact sheet rs08kb
TJN QFN PACKAGE LEAD FRAME CHANGE FOLLOW COPPER WIRE CONVERSION FOR MICROCONTROLLER DEVICES S08JS
Copper Wire Conversion for Microcontroller and Microprocessor Devices S08SL
CW MCU v6.3 Special Edition license S08SV
98ASB42343B ke04
MC9RS08KB12CWJ.pdf rs08kb
MC9RS08KB8CWJ.pdf rs08kb
MC9RS08KB4CWJ.pdf rs08kb
98ASB42566B rs08kb
MC9RS08KB12CSG.pdf rs08kb
MC9RS08KB8CSG.pdf rs08kb
MC9RS08KB4CSG.pdf rs08kb
98ASH70247A kea
MC9RS08KB12CTG.pdf rs08kb
MC9RS08KB4CTG.pdf rs08kb
MC9RS08KB8CTG.pdf rs08kb
98ASA00672D S08QG
MC9RS08KB2CDC.pdf rs08kb
98ASB42564B S08SH
MC9RS08KB2CSC.pdf rs08kb
MC9RS08KB2CSCR.pdf rs08kb
98ASA00602D rs08kb
MC9RS08KB12CFK.pdf rs08kb
MC9RS08KB4CFK.pdf rs08kb