S08QA: 8-bit QA MCUs

The MC9S08QA4 series are members of the cost-effective, high-performance S08 family of 8-bit microcontroller units featuring 1.8 to 3.3-volt operation, on-chip memory, two very low-power stop modes and low-voltage detection with reset or interrupt. The S08 core delivers a 40 MHz core speed and 20 MHz bus speed.

NXP® S08QA Microcontroller Block Diagram
Recommended Documentation (4)
Name/DescriptionTypeModified Date
Migration Guide from S08 to Kinetis® L Series MCUs (REV 0) PDF (559.8 kB) AN4662Application Notes23 Mar 2013
MC9S08QA4 Series Reference Manual (REV 2) PDF (3.2 MB) MC9S08QA4RMReference Manuals02 Apr 2007
MC9S08QA4 Series - Data Sheet (REV 3) PDF (2.4 MB) MC9S08QA4Data Sheets12 Jan 2009
MC9S08QA4/2 - Fact Sheet (REV 0) PDF (188.6 kB) MC9S08QA42FSFact Sheets29 Jan 2008
Data Sheets (1)
Name/DescriptionModified Date
MC9S08QA4 Series - Data Sheet (REV 3) PDF (2.4 MB) MC9S08QA412 Jan 2009
Errata (2)
Name/DescriptionModified Date
Mask Set Errata: 4M77B - Errata (REV 0) PDF (52.3 kB) MSE9S08QA4_4M77B11 Nov 2009
Error in SCI Chapter of Some HCS08 Data Sheets (REV 0) PDF (36.5 kB) DE000304 Jan 2007
Application Notes (16)
Name/DescriptionModified Date
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
Migration Guide from S08 to Kinetis® L Series MCUs (REV 0) PDF (559.8 kB) AN466223 Mar 2013
Using and Synchronizing the S08's Internal Clock for LIN Slave Implementations (REV 0) PDF (159.0 kB) AN375615 Oct 2008
A Miner's Lamp Using MC9S08QG4 (REV 1) PDF (227.6 kB) AN360120 Jul 2008
Migrating from the MC9S08QE32 to the MCF51QE32 (REV 0) PDF (95.6 kB) AN362930 Jun 2008
AN3499, Clock Options on the HC9S08 Family - Application Notes (REV 0) PDF (576.2 kB) AN349915 Jan 2008
AN3552, Analog Comparator Tips and Tricks for the MC9S08QG MCU - Application Notes (REV 0) PDF (2.1 MB) AN355219 Nov 2007
AN3500, Blood Pressure Monitor Using Flexis® QE128 - Application Notes (REV 0) PDF (236.8 kB) AN350015 Aug 2007
AN3291, How to Use IIC Module on M68HC08, S08, and S12 MCUs - Application Notes (REV 2) PDF (266.9 kB) AN329119 Apr 2007
Toaster Oven Control System Using MC9S08QD2 (REV 1) PDF (176.2 kB) AN341406 Mar 2007
AN3381 - Using SMAC with the HCS08QD4 MCU (REV 0) PDF (121.2 kB) AN338130 Nov 2006
Designing for Migration among 8-pin, 8-bit MCUs (REV 0) PDF (294.5 kB) AN332520 Sep 2006
AN2497: HCS08/RS08 Background Debug Mode versus HC08 Monitor Mode (REV 1) PDF (182.4 kB) AN249715 Aug 2006
AN3048, Using IIC to Read ADC Values on MC9S08QG8 - Application Notes (REV 1.00) PDF (273.2 kB) AN304828 Nov 2005
Internal Clock Source (ICS) Module on the HCS08s in Depth (REV 0) PDF (119.6 kB) AN304118 Oct 2005
Reference Manuals (3)
Name/DescriptionModified Date
DRM101, Blood Pressure Monitor Using the Flexis® QE128 Family - Reference Manual (REV 0) PDF (2.9 MB) DRM10110 Jul 2008
HCS08 Family Reference Manual (REV 2) PDF (3.6 MB) HCS08RMV104 May 2007
MC9S08QA4 Series Reference Manual (REV 2) PDF (3.2 MB) MC9S08QA4RM02 Apr 2007
Users Guides (1)
Name/DescriptionModified Date
S08 Peripheral Module Quick Reference A Compilation of Demonstration Software for S08 Modules - User’s Guide (REV 1) PDF (1.6 MB) HCS08QRUG21 Feb 2006
Fact Sheets (3)
Name/DescriptionModified Date
MC9S08QA4/2 - Fact Sheet (REV 0) PDF (188.6 kB) MC9S08QA42FS29 Jan 2008
Wireless Sensing Triple Axis Reference Board (ZSTAR) (REV 2) PDF (461.9 kB) ZSTARBOARDFS26 Jan 2007
MC9S08QG8/4 - Fact Sheet (REV 3) PDF (104.6 kB) MC9S08QG84FS02 Jan 2007
Brochures (1)
Name/DescriptionModified Date
Mechatronics Brochure (REV 0) PDF (692.1 kB) BRMECHATRONICS23 Feb 2007
Selector Guides (1)
Name/DescriptionModified Date
Low End 8-bit microcontrollers - Selector Guide (REV 6) PDF (421.5 kB) 8BITFTPRNTCARD01 Jan 2008
White Papers (1)
Name/DescriptionModified Date
Switching between the S08 and ColdFire® V1 Microcontrollers (REV 0) PDF (88.6 kB) QE128SWITCHWP31 May 2007
Product Change Notices (1)
Name/DescriptionModified Date
Copper Wire Conversion for Microcontroller and Microprocessor Devices (REV 0) HTM (311.5 kB) PCN1623520 May 2014
Programmers (Flash, etc.)
Updates and Patches
Ordering Information
ProductStatusPackage Type and Termination CountBudgetary Price excluding tax(US$)Internal Flash (KB)Internal RAM (KB)EEPROM (KB)Core TypeOperating Frequency (Max) (MHz)I2CSPIBus Frequency (Max) (MHz)GPIOsAmbient Operating Temperature (Min-Max) (°C)Timer FeaturesAdditional FeaturesSupply Voltage (Min-Max) (V)Video/Display features
MC9S08QA4CDNEActiveSOIC 810K @ US$0.7640.256S0820105-40 to 85Input Capture, Output Compare, PWMAnalog Comparator, COP, KBI1.8 to 3.6
MC9S08QA2CDNEActiveSOIC 810K @ US$0.6720.16S0820105-40 to 85Input Capture, Output Compare, PWMAnalog Comparator, COP, KBI1.8 to 3.6
MC9S08QA4CFQEActiveDFN-EP 810K @ US$0.7640.256S0820105-40 to 85Input Capture, Output Compare, PWMAnalog Comparator, COP, KBI1.8 to 3.6
MC9S08QA4CPAEActiveDIP 810K @ US$0.7140.256S0820105-40 to 85Input Capture, Output Compare, PWMAnalog Comparator, COP, KBI1.8 to 3.6
MC9S08QA2CPAEActiveDIP 810K @ US$0.7220.16S0820105-40 to 85Input Capture, Output Compare, PWMAnalog Comparator, COP, KBI1.8 to 3.6
MC9S08QA2CFQEActiveDFN-EP 810K @ US$0.6720.16S0820105-40 to 85Input Capture, Output Compare, PWMAnalog Comparator, COP, KBI1.8 to 3.6
Package Information
Package DescriptionOutline VersionPackingProduct StatusPart NumberChemical ContentRoHS / Pb FreeChina RoHS LookupMSLPPT (°C)
SOICN 8 3.9*4.9*1.7598ASB42564BMPQ - 98 RAILPOQ - 2450 BOXActiveMC9S08QA2CDNEMC9S08QA2CDNE.pdf3260
MPQ - 98 RAILPOQ - 2450 BOXActiveMC9S08QA4CDNEMC9S08QA4CDNE.pdf3260
DFN-EP 8 4*4*0.9 P0.898ASA00672DMPQ - 490 TRAYPOQ - 2450 BOXActiveMC9S08QA2CFQEMC9S08QA2CFQE.pdf3260
MPQ - 2450 BRICKPOQ - 2450 BOXActiveMC9S08QA4CFQEMC9S08QA4CFQE.pdf3260
PDIP 8 9.78*6.35*7.3698ASB42420BMPQ - 50 RAILPOQ - 4000 BOXActiveMC9S08QA2CPAEMC9S08QA2CPAE.pdf
MPQ - 50 RAILPOQ - 4000 BOXActiveMC9S08QA4CPAEMC9S08QA4CPAE.pdf
MC9S08QA4 Series - Data Sheet S08QA
Mask Set Errata: 4M77B - Errata S08QA
Error in SCI Chapter of Some HCS08 Data Sheets S08QD
AN4752, FreeMASTER Serial Driver Usage - Application Note S08SV
AN4753, Rational ClearCase Use in CodeWarrior® 10.3 - Application Note S08SV
Migration Guide from S08 to Kinetis® L Series MCUs S08RN
Using and Synchronizing the S08's Internal Clock for LIN Slave Implementations S08SH
A Miner's Lamp Using MC9S08QG4 s08se
Migrating from the MC9S08QE32 to the MCF51QE32 MCF51QE
AN3499, Clock Options on the HC9S08 Family - Application Notes S08SC4
AN3552, Analog Comparator Tips and Tricks for the MC9S08QG MCU - Application Notes S08SH
AN3500, Blood Pressure Monitor Using Flexis® QE128 - Application Notes MCF51QE
AN3291, How to Use IIC Module on M68HC08, S08, and S12 MCUs - Application Notes S08QD
Toaster Oven Control System Using MC9S08QD2 S08QG
AN3381 - Using SMAC with the HCS08QD4 MCU S08QD
Designing for Migration among 8-pin, 8-bit MCUs S08SC4
AN2497: HCS08/RS08 Background Debug Mode versus HC08 Monitor Mode S08SL
AN3048, Using IIC to Read ADC Values on MC9S08QG8 - Application Notes S08SC4
Internal Clock Source (ICS) Module on the HCS08s in Depth S08QG
DRM101, Blood Pressure Monitor Using the Flexis® QE128 Family - Reference Manual S08QD
HCS08 Family Reference Manual S08SL
MC9S08QA4 Series Reference Manual S08QA
S08 Peripheral Module Quick Reference A Compilation of Demonstration Software for S08 Modules - User’s Guide S08SL
MC9S08QA4/2 - Fact Sheet S08QA
Wireless Sensing Triple Axis Reference Board (ZSTAR) S08QD
MC9S08QG8/4 - Fact Sheet S08QD
Mechatronics Brochure S08QD
Low End 8-bit microcontrollers - Selector Guide S08QD
Switching between the S08 and ColdFire® V1 Microcontrollers S08QD
Copper Wire Conversion for Microcontroller and Microprocessor Devices S08SL
LFBDMPGMRS08FW S08SV
CW MCU v6.3 Special Edition license S08SV
98ASB42564B S08SH
MC9S08QA2CDNE.pdf S08QA
MC9S08QA4CDNE.pdf S08QA
98ASA00672D S08QG
MC9S08QA2CFQE.pdf S08QA
MC9S08QA4CFQE.pdf S08QA
98ASB42420B S08QD
MC9S08QA2CPAE.pdf S08QA
MC9S08QA4CPAE.pdf S08QA