My Inquiry
My Account
NXP Semiconductors S9S08QD4J1CSC
- Part No.:
- S9S08QD4J1CSC
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
S9S08QD4J1CSC.pdf
- Description:
- IC MCU 8BIT 4KB FLASH 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,388
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
S9S08QD4J1CSC from NXP Semiconductors is an 8-bit HCS08 microcontroller with 16 MHz CPU, 4 KB Flash, 256 B RAM, and integrated ADC, dual timers (TIM1/TIM2), KBI, and ICS clock module. It operates in automotive-grade temperature range (–40 °C to 125 °C) and targets low-cost embedded control in body electronics and sensor interfaces.
For engineers reviewing the S9S08QD4J1CSC datasheet, S9S08QD4J1CSC pinout, S9S08QD4J1CSC application, or S9S08QD4J1CSC equivalent, key selection criteria include Flash/RAM size, 8-pin SOIC packaging, single-wire BDM debug support, internal FLL-based clock accuracy (±2% over voltage/temperature), and automotive qualification per S9S08QD4 series documentation.
Technical Context
The S9S08QD4J1CSC implements the HCS08 CPU core with BGND instruction and background debugging system supporting one hardware breakpoint plus two additional breakpoints in the on-chip debug module. It supports up to 32 interrupt/reset sources and features a dedicated Real-Time Interrupt (RTI) counter for hardware-triggered ADC conversions.
Its Internal Clock Source (ICS) integrates a frequency-locked loop (FLL) with precision-trimmed internal reference (0.2% resolution, ±2% deviation over temperature and supply voltage), eliminating need for external crystal in cost-sensitive applications. Flash block protection and illegal opcode/address detection provide robust system-level fault containment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS08 8-bit CPU running at up to 16 MHz; supports HC08 instruction set plus BGND for debug entry |
| Flash Memory | 4096 bytes; read/program/erase over full operating voltage and temperature range; supports block protection |
| RAM Size | 256 bytes; used for stack, variables, and temporary data storage during runtime execution |
| ADC | 4-channel, 10-bit analog-to-digital converter with internal bandgap reference, temperature sensor, and RTI-triggered conversion |
| Timers | TIM1: 2-channel PWM/timer; TIM2: 1-channel PWM/timer; both support input capture, output compare, and edge/center-aligned PWM modes |
| Package | 8-pin SOIC; RoHS compliant; pin-compatible with MC9S08QD4 in same package option |
| Temperature Range | –40 °C to +125 °C; qualified for automotive applications per S9S08QD4 series specification |
Pinout & Package
8-pin SOIC package with exposed pad not present; lead finish is matte tin; moisture sensitivity level (MSL) = 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply voltage | Core and I/O power rail (2.7–5.5 V); decoupling capacitor required near pin |
| VSS | Ground | Digital ground reference; must be connected to system GND plane |
| RESET | Reset input | Active-low reset with internal pullup; initiates cold start or recovery from fault condition |
| BKGD/MS | Background debug / mode select | Single-wire BDM interface pin; also selects boot mode during reset assertion |
| PTA0–PTA3 | General-purpose I/O | Four bidirectional GPIO pins; software-selectable pullups, slew rate, and drive strength (10 mA each) |
| PTA4 | Input-only | Dedicated input pin (e.g., IRQ or analog input); no output driver enabled |
| PTA5 | Output-only | Dedicated output pin (e.g., LED drive or status flag); no input buffer enabled |
Key Features
| Feature | Design Value |
|---|---|
| Internal Clock Source (ICS) | FLL-based clock generation with 0.2% trimming resolution and ±2% stability across –40 °C to 125 °C and 2.7–5.5 V - enables crystal-free operation |
| Hardware-Triggered ADC | RTI counter can initiate ADC conversions without CPU intervention - reduces latency and frees CPU for other tasks |
| Keyboard Interrupt (KBI) | 4-pin keyboard interrupt module with software-selectable edge/level polarity - simplifies matrix keypad scanning in space-constrained designs |
| Power-Saving Modes | Wait + three Stop modes (Stop1/Stop2/Stop3); LVD and COP watchdog remain active in Stop2/Stop3 - extends battery life in intermittent-sensing applications |
| Flash Security | Block protection and security byte prevent unauthorized read/write access to Flash memory - protects firmware IP in production units |
Applications
| Automotive Door Module | Industrial Sensor Node |
|---|---|
Use Scenario: Control of window lift, lock actuator, and mirror adjustment via discrete drivers and feedback sensors. IC Role / Device Role / Timing Role: Central MCU executing motor control logic, reading switch inputs, and managing LIN/UART communication. Use Value: Integrated 10-bit ADC reads potentiometer position; TIM1/TIM2 generate precise PWM for motor speed regulation; 8-pin SOIC minimizes PCB footprint. | Use Scenario: Battery-powered environmental monitor measuring temperature, humidity, and ambient light. IC Role / Device Role / Timing Role: Low-power sensing controller that wakes periodically via RTI to sample sensors and transmit data. Use Value: Internal temperature sensor and bandgap reference enable self-calibrated measurements; Stop3 mode draws <1 µA - extends 10-year battery life. |
| Smart Appliance Keypad | LED Lighting Dimmer |
Use Scenario: User interface for microwave oven or washing machine with 4×4 membrane keypad. IC Role / Device Role / Timing Role: Dedicated KBI-driven input processor scanning keys and debouncing signals before forwarding to main controller. Use Value: Hardware KBI module handles all edge/level detection autonomously; reduces host MCU polling overhead and improves responsiveness. | Use Scenario: Phase-cut or PWM dimmer for residential LED lighting with soft-start and thermal foldback. IC Role / Device Role / Timing Role: Timing-critical PWM generator synchronizing TRIAC firing or MOSFET gate drive with AC line zero-crossing. Use Value: TIM1's buffered center-aligned PWM ensures consistent duty cycle; internal FLL provides stable timing without external crystal - lowers BOM cost. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08QD4CDT | Same core, Flash, RAM, and peripherals; differs only in temperature grade (–40 °C to 85 °C vs. –40 °C to 125 °C) and package (8-pin PDIP) | Not qualified for under-hood automotive use; suitable for industrial or consumer applications with lower ambient temperature requirements | Select MC9S08QD4CDT when extended temperature range is unnecessary and through-hole assembly is preferred. |
| S9S08QD2J1CSC | Same package and temperature rating but halved resources: 2 KB Flash, 128 B RAM, and reduced peripheral register sets | Targeted at simpler control tasks where code size and memory footprint are constrained, e.g., basic timer-based sequencers | Choose S9S08QD2J1CSC when application firmware fits within 2 KB Flash and does not require full ADC or dual-timer concurrency. |
Compared with MC9S08QD4CDT and S9S08QD2J1CSC, the S9S08QD4J1CSC uniquely combines automotive temperature qualification, 4 KB Flash, and 8-pin SOIC packaging - making it optimal for space-constrained, thermally demanding embedded controllers where firmware complexity exceeds 2 KB.
Availability
S9S08QD4J1CSC is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart appliance interfaces, and LED lighting control requiring stable component supply across long production lifecycles.
Supply support for S9S08QD4J1CSC 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 company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The S9S08QD4J1CSC belongs to the HCS08 QD-series microcontrollers designed specifically for cost-sensitive, low-pin-count automotive and industrial control applications requiring high reliability and minimal external components.
FAQ
What is the maximum operating frequency of the S9S08QD4J1CSC CPU?
The S9S08QD4J1CSC 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), which locks to a trimmed internal reference - enabling full-speed execution without external crystal or resonator.
Does the S9S08QD4J1CSC support in-circuit debugging?
Yes, the S9S08QD4J1CSC includes a single-wire background debug interface (BDM) compliant with the HCS08 architecture. It supports one hardware breakpoint plus two additional breakpoints managed by the on-chip debug module, allowing real-time code inspection and modification during development.
What are the power-saving modes supported by the S9S08QD4J1CSC?
The S9S08QD4J1CSC supports Wait mode plus three Stop modes (Stop1, Stop2, Stop3). In Stop2 and Stop3, the COP watchdog and low-voltage detect (LVD) circuit remain active, while the RTI can wake the device - enabling ultra-low-power operation ideal for battery-powered sensor nodes.
Is the S9S08QD4J1CSC qualified for automotive applications?
Yes, the S9S08QD4J1CSC is explicitly qualified for automotive use with a guaranteed operating temperature range of –40 °C to +125 °C. It is part of the S9S08QD4 series documented for automotive applications in Rev. 7 of the MC9S08QD4 Data Sheet dated August 2022.
How much Flash and RAM memory does the S9S08QD4J1CSC include?
The S9S08QD4J1CSC includes 4096 bytes of on-chip Flash memory and 256 bytes of RAM. Both memory blocks are accessible across the full operating voltage (2.7–5.5 V) and temperature range, and Flash supports in-application programming with block protection enabled.
S9S08QD4J1CSC 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08QD4J1CSC FAQ
1.How can I place an order for S9S08QD4J1CSC through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08QD4J1CSC 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 S9S08QD4J1CSC reliable?
The price and inventory of S9S08QD4J1CSC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08QD4J1CSC is usually 5 days.
3.What payment methods are accepted for S9S08QD4J1CSC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08QD4J1CSC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S08QD4J1CSC?
S9S08QD4J1CSC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08QD4J1CSC 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 S9S08QD4J1CSC?
For technical support, including S9S08QD4J1CSC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08QD4J1CSC requirements.
6.How does Aetrix verify that S9S08QD4J1CSC is sourced from the original manufacturer or authorized distributors?
All S9S08QD4J1CSC 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 S9S08QD4J1CSC meets industry standards.
7.What is the process for return or replacement of S9S08QD4J1CSC?
All S9S08QD4J1CSC units undergo pre-shipment inspection (PSI). If there is an issue with S9S08QD4J1CSC, 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 S9S08QD4J1CSC part is unused and in its original packaging.
Return procedure for S9S08QD4J1CSC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S9S08QD4J1CSC Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
