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NXP Semiconductors S9S08QD4J2MSC
- Part No.:
- S9S08QD4J2MSC
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
S9S08QD4J2MSC.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,203
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Product details
Overview
S9S08QD4J2MSC from NXP Semiconductors is an 8-bit HCS08 microcontroller with 16 MHz CPU, 4 KB flash memory, 256 bytes RAM, and integrated ADC, dual timer/PWM modules, and background debug interface - used in automotive body electronics, industrial sensor nodes, and low-power embedded control.
For engineers reviewing the S9S08QD4J2MSC datasheet, S9S08QD4J2MSC pinout, S9S08QD4J2MSC application, or S9S08QD4J2MSC equivalent, key selection criteria include flash size, ICS FLL accuracy (±2% over temp/voltage), 4-channel 10-bit ADC with hardware trigger, and 8-pin SOIC packaging for space-constrained designs.
Technical Context
The S9S08QD4J2MSC implements the HCS08 CPU core with BGND instruction support and a single-wire background debug interface enabling in-circuit debugging with one active breakpoint plus two additional breakpoints in the on-chip debug module. It supports up to 32 interrupt/reset sources and uses the Internal Clock Source (ICS) module with frequency-locked-loop (FLL) for clock generation.
Power management includes Wait mode and three Stop modes (Stop1–Stop3), with LVD reset/interrupt and COP watchdog configurable to run from either bus clock or dedicated 32 kHz internal source. Flash block protection and illegal opcode/address detection provide system-level robustness for automotive-grade operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit core with 16 MHz max operation and HC08 instruction set plus BGND |
| Flash Memory | 4096 bytes - sufficient for firmware with ADC calibration, PWM control logic, and BDM routines |
| RAM Size | 256 bytes - supports stack, peripheral buffers, and real-time variable storage |
| ADC | 4-channel, 10-bit with internal bandgap reference, temperature sensor, and RTI-triggered conversion |
| Timers | TIM1 (2-channel) and TIM2 (1-channel) supporting input capture, output compare, and edge/center-aligned PWM |
| Package | 8-pin SOIC - RoHS-compliant, surface-mountable, footprint-compatible with MC9S08QD4 variants |
| Temperature Range | –40 °C to +125 °C - qualified for automotive under-hood and industrial environments |
Pinout & Package
8-pin SOIC package with 4 general-purpose I/O pins, 1 input-only pin (IRQ), 1 output-only pin (RESET), and dedicated BKGD/MS debug pin. All I/Os support software-selectable pullups, slew rate control, and drive strength (10 mA per pin, 60 mA total).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply voltage | Core and I/O power rail (2.7–5.5 V); decoupling required near pin |
| VSS | Ground | Digital ground reference; separate analog ground (VSSAD) not present in this variant |
| PTA0/BKGD | Background debug / GPIO | Single-wire BDM interface; functions as GPIO when debug disabled |
| PTA1/IRQ | Interrupt request input | Edge-sensitive external interrupt; internal pullup reduces external component count |
| PTA2 | General-purpose I/O | Configurable as digital input/output with software-selectable pullup and drive strength |
| PTA3 | General-purpose I/O | Supports PWM output via TIM1 channel; compatible with edge-aligned or center-aligned modes |
| RESET | Active-low reset | Output-only reset assertion pin; internal pullup eliminates need for external resistor |
| PTA4 | General-purpose I/O | ADC input channel AD0; also usable as digital I/O with programmable polarity |
Key Features
| Feature | Design Value |
|---|---|
| Internal Clock Source (ICS) with FLL | Enables precise clock generation without external crystal; ±0.2% trimming resolution and ±2% deviation over full temp/voltage range |
| Hardware-triggered ADC | RTI counter initiates conversions automatically - eliminates CPU polling overhead and improves timing determinism |
| On-chip COP watchdog | Configurable to operate from dedicated 32 kHz internal clock - ensures reliable reset even during bus clock failure |
| Flash block protection | Prevents accidental overwrite of bootloader or calibration data; controlled via FPROT register |
| Keyboard interrupt (KBI) | 4-pin interrupt module with software-selectable edge/level sensitivity - ideal for pushbutton interfaces in automotive panels |
Applications
| Automotive Door Module | Industrial Temperature Sensor Node |
|---|---|
Use Scenario: Control of window lift, mirror adjustment, and interior lighting in vehicle door assemblies. IC Role / Device Role / Timing Role: Main system controller executing motor control PWM, switch debouncing, and LIN communication timing. Use Value: Integrated TIM1/TIM2 enable synchronized edge-aligned PWM for bidirectional DC motors; 10-bit ADC reads potentiometer position with internal reference stability. | Use Scenario: Battery-powered remote sensor unit measuring ambient temperature and reporting via UART or SPI. IC Role / Device Role / Timing Role: Low-power system manager handling ADC sampling, sleep/wake scheduling, and serial data framing. Use Value: Stop3 mode draws sub-μA current; internal temperature sensor and bandgap reference eliminate external components; 4 KB flash stores firmware with OTA update capability. |
| Smart Appliance Control Board | LED Dimming Driver |
Use Scenario: Embedded control of washing machine drum speed, water valve actuation, and user interface feedback. IC Role / Device Role / Timing Role: Real-time executor of motor phase timing, solenoid pulse-width control, and keypad scan logic. Use Value: KBI module scans 4-button panel with edge/level flexibility; TIM2 generates precise 1–100 Hz PWM for valve control; 256-byte RAM buffers sensor events during brief wake cycles. | Use Scenario: Constant-current LED driver for architectural lighting with analog dimming and thermal foldback. IC Role / Device Role / Timing Role: Analog feedback controller using ADC to monitor LED current sense voltage and adjust TIM1 PWM duty cycle. Use Value: ADC automatic compare function triggers interrupt on overcurrent; internal bandgap reference ensures stable 10-bit measurement across supply variation; 8-pin SOIC simplifies PCB layout in tight heatsink zones. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08QD4CP | Same core, flash, RAM, and peripherals; differs only in marking suffix and temperature grade (–40 °C to +85 °C vs. +125 °C) | Not qualified for under-hood automotive use; suitable for consumer or industrial indoor applications | Select MC9S08QD4CP if extended temperature range is unnecessary and cost optimization is prioritized |
| S9S08QD2J2MSC | Identical package and pinout but halved resources: 2 KB flash, 128 bytes RAM, same peripherals | Applicable where firmware footprint is <2 KB and variable storage needs are minimal | Choose S9S08QD2J2MSC when application code fits within 2 KB and no future feature expansion is planned |
Compared with MC9S08QD4CP and S9S08QD2J2MSC, the S9S08QD4J2MSC uniquely combines AEC-Q100-qualified operation at 125 °C, 4 KB flash headroom for safety diagnostics, and full peripheral set - making it the only option among the three for thermally demanding automotive body control modules.
Availability
S9S08QD4J2MSC is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance control, and LED dimming drivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S9S08QD4J2MSC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader delivering secure, scalable solutions for automotive, industrial, IoT, and communication infrastructure markets.
The S9S08QD4J2MSC belongs to the HCS08 QD-series microcontrollers, designed specifically for cost-sensitive, low-power automotive body electronics and industrial control applications requiring high reliability in harsh environments.
FAQ
What is the maximum operating frequency of the S9S08QD4J2MSC CPU?
The S9S08QD4J2MSC features an HCS08 CPU core rated for up to 16 MHz operation. This frequency is achieved using the internal clock source (ICS) with its frequency-locked-loop (FLL) circuit, which can be configured to generate the required bus clock. The actual achievable frequency depends on supply voltage and temperature, but the device is fully specified and tested to operate reliably at 16 MHz across its –40 °C to +125 °C temperature range. The S9S08QD4J2MSC does not require an external crystal for basic operation due to its precision-trimmed internal reference.
Does the S9S08QD4J2MSC include an analog-to-digital converter, and what are its key capabilities?
Yes, the S9S08QD4J2MSC integrates a 4-channel, 10-bit analog-to-digital converter (ADC). It supports asynchronous clocking, automatic compare functionality, and hardware triggering via the Real-Time Interrupt (RTI) counter. The ADC includes an internal temperature sensor and bandgap voltage reference channel, eliminating the need for external reference components. All four channels are accessible through dedicated pins (AD0–AD3), and the module is fully functional in Wait mode - though conversion is suspended in Stop modes unless explicitly enabled for Stop3.
What debug interface does the S9S08QD4J2MSC support, and how is it implemented?
The S9S08QD4J2MSC supports a single-wire background debug (BDM) interface using the PTA0 pin, labeled BKGD/MS in the pinout. This interface enables in-circuit debugging without halting normal program execution, supporting breakpoint setting (one active breakpoint plus two more managed by the on-chip debug module), register inspection, and memory access. No external debug probe is required beyond a standard BDM adapter, and the interface operates at standard logic levels compatible with common development tools targeting the HCS08 architecture.
Is the S9S08QD4J2MSC qualified for automotive applications, and what certifications apply?
Yes, the S9S08QD4J2MSC is qualified for automotive applications with an operating temperature range of –40 °C to +125 °C and compliance to AEC-Q100 Grade 1 stress testing requirements. It is manufactured in NXP's automotive-qualified facilities and includes features essential for automotive use: COP watchdog with independent 32 kHz clock source, low-voltage detection with reset/interrupt, flash block protection, and illegal opcode/address error handling. The "J" in the part number denotes automotive qualification, and the "2MSC" suffix indicates 8-pin SOIC packaging with lead-free, RoHS-compliant finish.
How much flash memory and RAM does the S9S08QD4J2MSC provide, and how are they utilized in typical firmware?
The S9S08QD4J2MSC provides 4096 bytes of on-chip flash memory and 256 bytes of RAM. The flash stores executable code, interrupt vectors, and non-volatile configuration data (e.g., calibration constants), while the RAM holds runtime variables, stack frames, and peripheral buffers. In typical implementations - such as automotive door modules - flash usage ranges from 2.5 KB to 3.8 KB, leaving margin for field updates or safety diagnostics; RAM utilization stays below 200 bytes, allowing space for nested interrupts and temporary sensor data aggregation before transmission.
S9S08QD4J2MSC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- S08
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 16MHz
- Connectivity:
- -
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 4
- Program Memory Size:
- 4KB (4K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 4x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08QD4J2MSC FAQ
1.How can I place an order for S9S08QD4J2MSC through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08QD4J2MSC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for S9S08QD4J2MSC reliable?
The price and inventory of S9S08QD4J2MSC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08QD4J2MSC is usually 5 days.
3.What payment methods are accepted for S9S08QD4J2MSC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08QD4J2MSC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08QD4J2MSC?
S9S08QD4J2MSC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08QD4J2MSC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for S9S08QD4J2MSC?
For technical support, including S9S08QD4J2MSC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08QD4J2MSC requirements.
6.How does Aetrix verify that S9S08QD4J2MSC is sourced from the original manufacturer or authorized distributors?
All S9S08QD4J2MSC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S9S08QD4J2MSC meets industry standards.
7.What is the process for return or replacement of S9S08QD4J2MSC?
All S9S08QD4J2MSC units undergo pre-shipment inspection (PSI). If there is an issue with S9S08QD4J2MSC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The S9S08QD4J2MSC part is unused and in its original packaging.
Return procedure for S9S08QD4J2MSC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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