Design Files
Receive the full breakdown. See the product footprint and more in the eCad file.
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.
Product Details
Block Diagram
Features
8-bit HCS08 Central Processor Unit (CPU)
- Up to 20 MHz HCS08 CPU (10 MHz bus frequency) for 100 ns minimum instruction time
- HC08 instruction set with added BGND instruction
- Support for up to 32 interrupt/reset sources
Integrated Third-Generation Flash Memory and RAM
- Embedded flash that is in-application reprogrammable over the full operating voltage and temperature range with a single power supply
- Extremely fast, byte-writable programming; as fast as 20 us/byte
- Up to 100,000 write/erase cycles at typical voltage and temperature (10k minimum write/erase)
- 100 years typical data retention (15 years minimum)
Flexible Clock Options
- Internal clock source (ICS) module containing a frequency-locked loop (FLL) controlled by internal or external reference
- Precision trimming of internal reference allows typical 0.1 percent resolution and +0.5 percent to -1 percent deviation over operating temperature and voltage
- Internal reference can be trimmed from 31.25 kHz to 39.065 kHz, allowing for 8 MHz to 10 MHz FLL output
Input/Output (I/O) Lines
- 4 Bidirectional Input/Output (I/O) Lines
- One Input Only and One Output Only Line
- Outputs 10 mA each, 60 mA max for package
- Software selectable pull-ups on ports when used as input
- internal pull-up on reset
- interrupt request (IRQ) pin
- Software selectable slew rate control and drive strength on ports when used as output
- 4-pin keyboard interrupt module with software selectable polarity on edge or edge/level modes
Integrated Analog Peripherals
- 4-ch., 10-bit analog-to-digital converter (ADC)
- Automatic compare function, software programmable for greater than/equal to or less than conditions
- Asynchronous clock source
- Temperature sensor
- Internal bandgap reference channel
- Hardware triggerable using the RTI counter
- Low-power and high-speed options
Analog comparator module (ACMP)
- Option to compare to internal reference
- Option to route comparator output directly to pin
- Output can be optionally routed to TPM module as Input capture trigger
Two Timer Modules
- Programmable 16-bit timer/PWM module (TPM)
- 8-bit modulo timer module (MTIM) with 8-bit prescaler
System Protection
- Watchdog computer operating properly (COP) reset with option to run from dedicated 1 kHz internal clock source or bus clock
- Low-voltage detection with reset or interrupt
- Illegal opcode detection with reset
- Flexible block protection
- Security feature for flash and RAM
- Always-on power-on reset (POR) circuitry
Buy/Parametrics
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Documentation
Quick reference to our documentation types.
1-5 of 31 documents
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Fact Sheet
MC9S08QA4/2 - Fact SheetFeatured
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Reference Manual
MC9S08QA4 Series Reference ManualFeatured
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Data Sheet
MC9S08QA4 Series - Data SheetFeatured
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Application Note
Migration Guide from S08 to Kinetis L Series MCUsFeatured
Design Resources
Hardware
Quick reference to our
board types.
4 hardware offerings
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Emulators, Probes, and ProgrammersUniversal Multilink Development InterfaceFeatured
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Emulators, Probes, and ProgrammersPEmicro Cyclone programmer
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Emulators, Probes, and ProgrammersPEmicro Cyclone FX programmer
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Emulators, Probes, and ProgrammersUniversal Multilink FX High-Speed Development Interface
Software
Quick reference to our software types.
1-5 of 8 software files
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BSPs and Device Drivers
Graphical LCD Driver for MCUs/MPUsFeatured
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Development IDEs and Build Tools
CodeWarrior® for Microcontrollers (Classic IDE) - RS08/HC(S)08, ColdFire V1 v6.3Featured
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Development IDEs and Build Tools
CodeWarrior® for MCUs (Eclipse IDE) - ColdFire®, 56800/E DSC, Qorivva® 56xx, RS08/S08, S12Z - 11.1Featured
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Additional software available. View our featured partner solutions.
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Configuration Tools
Processor Expert® Software – Component Development Environment v1.0.4
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Configuration Tools
Embedded Component: NXPAnalogComp
Note: For better experience, software downloads are recommended on desktop.
Engineering Services
To get further assistance directly from NXP, please see our Engineering Services.
4 engineering services
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Independent Design House (IDH)
Hardware/Software Engineering Services
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Independent Design House (IDH)
Embedded firmware consulting
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Independent Design House (IDH)
Hardware/Software development and testing
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Independent Design House (IDH)
EMI/EMC Assessment and compliance
To find additional partner offerings that support this product, visit our Partner Marketplace.