NXP Semiconductors S9S08SG16E1WTL
- Part No.:
- S9S08SG16E1WTL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
S9S08SG16E1WTL.pdf
- Description:
- IC MCU 8BIT 16KB FLASH 28TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S9S08SG16E1WTL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 16 KB on-chip FLASH, 1 KB RAM, and integrated peripherals including 10-bit ADC, dual TPM timers, SCI, SPI, I²C, ACMP, and RTC. It operates at up to 40 MHz bus frequency, supports -40°C to +125°C temperature range, and targets cost-sensitive embedded control in automotive body electronics and industrial sensors.
For engineers reviewing the S9S08SG16E1WTL datasheet, S9S08SG16E1WTL pinout, S9S08SG16E1WTL application, or S9S08SG16E1WTL equivalent, this page delivers verified technical context, package mapping, real-world use cases, and validated alternative options for production design-in and BOM continuity planning.
Technical Context
The S9S08SG16E1WTL implements the HCS08 CPU core with BGND instruction support and handles up to 32 interrupt/reset sources. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision-trimmed internal reference, enabling 2–20 MHz bus frequencies with ±1.5% deviation over –40°C to +125°C.
Peripherals include a 16-channel 10-bit ADC with 2.5 µs conversion time and internal temperature sensor, two 2-channel TPM modules supporting input capture/output compare/PWM, and a real-time counter (RTC) with 1 kHz low-power oscillator that operates in all MCU modes including STOP3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with 40 MHz max bus frequency and HC08 instruction set extension |
| FLASH Memory | 16 KB on-chip FLASH with read/program/erase over full operating voltage and temperature (–40°C to +125°C) |
| RAM Size | 1 KB on-chip RAM with security protection against unauthorized access |
| ADC Resolution | 10-bit SAR ADC with 16 input channels, 2.5 µs conversion time, and internal bandgap reference |
| Timer Modules | Two Timer Pulse-Width Modulator (TPM) modules, each with 2 independent channels supporting PWM, input capture, and output compare |
| Operating Voltage | 2.7 V to 5.5 V supply range; LVD reset/interrupt with selectable trip points ensures reliable operation during brownout |
| Package Type | 28-pin TSSOP (JEDEC MO-153AA), 4.4 mm × 9.7 mm footprint, 0.65 mm pitch |
Pinout & Package
Package: 28-pin Thin Shrink Small Outline Package (TSSOP), lead-free and RoHS-compliant, thermal resistance θJA = 72 °C/W (single-layer board, 200 ft/min airflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power pins enable stable core and I/O rail operation; decoupling required per datasheet layout guidelines |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or watchdog timeout assertion |
| BKGD/MS | Single-wire background debug interface | Enables in-circuit debugging and programming via BDM protocol without dedicated JTAG pins |
| PTA0–PTA7 | Port A general-purpose I/O | 8-bit bidirectional port with configurable pull-up, slew rate, and drive strength; supports pin interrupts |
| PTB0–PTB7 | Port B general-purpose I/O | 8-bit bidirectional port; PTB[5:2] supports ganged output for synchronized multi-pin control |
| PTC0–PTC3 | Port C general-purpose I/O | 4-bit bidirectional port; PTC[3:0] supports ganged output and analog comparator inputs |
| XIN/XOUT | Crystal/resonator oscillator terminals | Supports 31.25 kHz–16 MHz external crystal or ceramic resonator for precise clock source |
Key Features
| Feature | Design Value |
|---|---|
| Low-power stop modes | STOP2 and STOP3 modes reduce current to ≤1.5 µA; RTC continues running in STOP3 for wake-up scheduling |
| Integrated analog subsystem | 10-bit ADC with temperature sensor and internal bandgap reference enables self-calibrating sensor nodes without external components |
| Robust system protection | Configurable COP watchdog with dedicated 1 kHz clock, LVD/LVW detection, illegal opcode/address traps, and FLASH block protection |
| Peripheral flexibility | SCI supports LIN master break generation and slave break detection; I²C supports 100 kbps, broadcast mode, and 10-bit addressing |
| Development support | Single-wire BDM interface with breakpoint capability and on-chip ICE module featuring 8-deep FIFO and 9 trigger modes |
Applications
| Automotive Door Module | Industrial Temperature Sensor Node |
|---|---|
|
Use Scenario: Centralized control of window lift, mirror adjustment, and interior lighting in vehicle door assemblies. IC Role / Device Role / Timing Role: Main system controller executing motor drive logic, switch debouncing, LIN communication, and fault monitoring. Use Value: Integrated TPM PWM channels directly drive H-bridge gate drivers; SCI LIN interface meets ISO 17987-4 timing requirements for body network messaging. |
Use Scenario: Battery-powered wireless node measuring ambient temperature and reporting via UART or SPI to gateway MCU. IC Role / Device Role / Timing Role: Standalone sensor processor performing ADC sampling, calibration, and low-power wake-up scheduling. Use Value: RTC with 1 kHz internal oscillator enables cyclic wake-up every 1–60 seconds without external crystal; 10-bit ADC + internal temp sensor eliminates need for discrete sensor IC. |
| Smart HVAC Actuator | Appliance Motor Control Board |
|
Use Scenario: Position feedback and proportional control of damper actuators in residential HVAC systems. IC Role / Device Role / Timing Role: Closed-loop position controller using ACMP for potentiometer zero-crossing detection and TPM for PWM fan/motor drive. Use Value: Analog comparator output routed to TPM input capture allows precise timing of mechanical end-stop detection; 2.7–5.5 V operation accommodates wide-range 4–24 V DC supply rails. |
Use Scenario: Brushless DC motor commutation and overload protection in washing machine or dishwasher main control board. IC Role / Device Role / Timing Role: Secondary motor management unit handling hall-effect sensor decoding, phase timing, and thermal shutdown logic. Use Value: Dual TPM modules provide independent 3-phase PWM generation with center-aligned output; LVD/LVW features prevent erratic behavior during mains dips or battery sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S08SG32E1WTL | Same package and pinout; doubles FLASH to 32 KB and RAM to 2 KB; identical peripheral set and electrical specs | Required when firmware exceeds 16 KB or requires larger data buffers for logging or OTA updates | Select if future firmware growth or enhanced diagnostics justify higher memory density without PCB change |
| MC9RS08KA2CSC | Smaller 2 KB FLASH, 128 B RAM; single TPM, no ACMP; 16-pin SOIC/TSSOP; lower cost but reduced peripheral count | Suitable for ultra-simple functions like LED sequencing or basic switch monitoring where ADC/TPM not needed | Choose only for minimal-feature applications where S9S08SG16E1WTL's full peripheral suite is unused overhead |
Compared with S9S08SG16E1WTL, the S9S08SG32E1WTL offers scalable memory headroom while maintaining full hardware compatibility, whereas the MC9RS08KA2CSC trades peripheral capability and memory for cost reduction in non-analog, non-timing-critical roles.
Availability
S9S08SG16E1WTL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, smart HVAC actuators, and appliance motor control boards requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S9S08SG16E1WTL 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 focused on secure connectivity solutions for automotive, industrial, and IoT applications, formed from the acquisition of Freescale Semiconductor in 2015.
The S9S08SG16E1WTL belongs to the legacy HCS08 microcontroller family designed for cost-optimized, low-power embedded control in harsh environments-particularly automotive body electronics and industrial automation where reliability, small footprint, and analog integration are critical.
FAQ
What is the maximum operating frequency of the S9S08SG16E1WTL?
The S9S08SG16E1WTL supports a maximum bus frequency of 40 MHz when operating within its specified voltage and temperature range. This is achieved using the internal clock source (ICS) with frequency-locked loop (FLL) and optional external crystal input. The actual achievable frequency depends on the selected clock configuration and load conditions, but the device is fully characterized and guaranteed up to 40 MHz at 2.7–5.5 V and –40°C to +125°C.
Does the S9S08SG16E1WTL support LIN communication?
Yes, the S9S08SG16E1WTL supports LIN communication through its SCI module, which includes dedicated hardware features for LIN compliance: LIN master extended break generation and LIN slave extended break detection. These capabilities allow the S9S08SG16E1WTL to serve as either a LIN master or slave node in automotive body networks without requiring external transceivers beyond standard physical layer components.
What is the purpose of the BKGD/MS pin on the S9S08SG16E1WTL?
The BKGD/MS pin on the S9S08SG16E1WTL serves as the single-wire background debug interface, enabling in-circuit programming and real-time debugging without JTAG. During normal operation, it functions as a general-purpose I/O pin; during debug mode, it carries BDM protocol signals for flash programming, register inspection, and breakpoint execution. This pin eliminates the need for additional debug headers while maintaining full development visibility for the S9S08SG16E1WTL.
Can the S9S08SG16E1WTL operate in low-power stop modes with the RTC active?
Yes, the S9S08SG16E1WTL supports RTC operation in STOP3 mode using its internal 1 kHz low-power oscillator. This allows the RTC to maintain timekeeping and generate periodic wake-up interrupts while the rest of the MCU-including CPU, FLASH, and most peripherals-is powered down. The S9S08SG16E1WTL achieves typical STOP3 current consumption of ≤1.5 µA, making it suitable for battery-operated sensor nodes requiring infrequent wake-up intervals.
Is the S9S08SG16E1WTL pin-compatible with other devices in the MC9S08SGxx family?
Yes, the S9S08SG16E1WTL is pin-compatible with the S9S08SG32E1WTL in the 28-pin TSSOP package. Both share identical pin assignments, electrical characteristics, and peripheral mappings. This allows direct substitution where increased FLASH or RAM capacity is needed later in the design cycle, without requiring PCB layout changes or firmware re-architecting for the S9S08SG16E1WTL or S9S08SG32E1WTL.
S9S08SG16E1WTL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- S08
- Core Size:
- 8-Bit
- Speed:
- 40MHz
- Connectivity:
- I2C, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 22
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.7V ~ 5.5V
- Data Converters:
- A/D 16x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08SG16E1WTL FAQ
1.How can I place an order for S9S08SG16E1WTL through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08SG16E1WTL 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 S9S08SG16E1WTL reliable?
The price and inventory of S9S08SG16E1WTL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08SG16E1WTL is usually 5 days.
3.What payment methods are accepted for S9S08SG16E1WTL?
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S9S08SG16E1WTL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08SG16E1WTL 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 S9S08SG16E1WTL?
For technical support, including S9S08SG16E1WTL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08SG16E1WTL requirements.
6.How does Aetrix verify that S9S08SG16E1WTL is sourced from the original manufacturer or authorized distributors?
All S9S08SG16E1WTL 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 S9S08SG16E1WTL meets industry standards.
7.What is the process for return or replacement of S9S08SG16E1WTL?
All S9S08SG16E1WTL units undergo pre-shipment inspection (PSI). If there is an issue with S9S08SG16E1WTL, 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 S9S08SG16E1WTL part is unused and in its original packaging.
Return procedure for S9S08SG16E1WTL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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