NXP Semiconductors S9S08SG32E1CTL
- Part No.:
- S9S08SG32E1CTL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
S9S08SG32E1CTL.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 28TSSOP
- Quantity:
- Payment:

- Shipping:

Inventory:2,279
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Product details
Overview
S9S08SG32E1CTL from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 32 KB Flash, 2 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 automotive body electronics and industrial control applications.
For engineers reviewing the S9S08SG32E1CTL datasheet, S9S08SG32E1CTL pinout, S9S08SG32E1CTL application, or S9S08SG32E1CTL equivalent, key selection criteria include its 28-pin TSSOP package, on-chip ICS with FLL-based clock generation, low-voltage detection with interrupt capability, stop3 mode operation for ultra-low-power wake-up, and single-wire background debug interface.
Technical Context
The S9S08SG32E1CTL implements the HCS08 CPU core with HC08 instruction set compatibility, supporting up to 32 interrupt/reset sources and BGND instruction for debug entry. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with internal reference trimming enabling ±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 real-time counter (RTC) with 1 kHz low-power oscillator enabling cyclic wake-up in all modes including stop3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | HCS08 8-bit CPU with 40 MHz max bus frequency |
| Flash Memory | 32 KB on-chip FLASH with read/program/erase over full operating voltage and temperature range |
| RAM | 2 KB on-chip RAM with security protection against unauthorized access |
| ADC | 16-channel, 10-bit resolution, 2.5 µs conversion time, includes internal bandgap reference and temperature sensor |
| Operating Temperature | -40°C to +125°C, qualified for automotive AEC-Q100 Grade 2 |
| Package | 28-pin TSSOP (Thin Shrink Small Outline Package), 4.4 mm × 9.7 mm body size |
| Debug Interface | Single-wire background debug (BDM) with breakpoint support and on-chip ICE module |
Pinout & Package
28-pin TSSOP package with 0.65 mm pitch, JEDEC MO-153 compliant, thermal resistance of 72 °C/W on single-layer board with 200 ft/min airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power pins for noise isolation; VDD must be decoupled locally per datasheet layout guidelines |
| XTAL, EXTAL | Clock input/output | Connects to external crystal or ceramic resonator (1–16 MHz); XTAL drives internal oscillator circuit |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; asserted low for ≥2 µs to initiate hardware reset sequence |
| BKGD/MS | Background debug / mode select | Single-wire BDM communication pin; also selects active background mode during reset assertion |
| PTA0–PTA7 | Port A general-purpose I/O | 8-bit bidirectional port with configurable pull-up, slew rate, and drive strength; PTA0–PTA1 support pin interrupt |
| PTB0–PTB7 | Port B general-purpose I/O | 8-bit bidirectional port; PTB[5:2] support ganged output for simultaneous state change |
| PTC0–PTC7 | Port C general-purpose I/O | 8-bit bidirectional port; PTC[3:0] support ganged output; PTC0–PTC1 support analog comparator inputs |
| AD0–AD15 | ADC analog inputs | 16 dedicated analog input channels mapped across ports A, B, and C; share pins with digital I/O functions |
Key Features
| Feature | Design Value |
|---|---|
| Stop3 ultra-low-power mode | Enables RTC wake-up from deep sleep with current draw < 1 µA, preserving RAM and register contents |
| Internal Clock Source (ICS) | FLL-based clock generator with ±1.5% accuracy over -40°C to +125°C, eliminating need for external crystal in cost-sensitive designs |
| Low-Voltage Warning (LVW) | Generates interrupt before LVD threshold is reached, allowing software to execute safe shutdown or data save routines |
| On-chip security circuitry | Prevents unauthorized read-out of Flash and RAM contents via background debug interface or mass erase commands |
| Real-time counter (RTC) | Free-running 8-bit modulus counter with 1 kHz internal oscillator, functional in all MCU modes including stop3 |
Applications
| Automotive Body Control Module | Industrial Sensor Node |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main system controller executing CAN/LIN gateway logic, PWM motor control, and analog sensor acquisition. Use Value: Integrated ADC, TPM PWM outputs, and LIN-compliant SCI reduce BOM count and PCB area while meeting AEC-Q100 Grade 2 requirements. | Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and ambient light in factory settings. IC Role / Device Role / Timing Role: Low-power data acquisition and local decision engine with periodic wireless transmission trigger. Use Value: Stop3 mode with RTC wake-up enables 10+ year battery life; internal temperature sensor and bandgap reference eliminate external calibration components. |
| Home Appliance Motor Control | Smart HVAC Actuator |
Use Scenario: Brushless DC motor commutation and speed regulation in washing machines and refrigerators. IC Role / Device Role / Timing Role: Dedicated motor timing controller generating synchronized PWM signals and capturing back-EMF zero-cross events. Use Value: Dual TPM modules provide independent 2-channel PWM generation with center-aligned mode and dead-time insertion support. | Use Scenario: Position feedback and valve actuation control in residential heating/cooling systems using stepper or DC motors. IC Role / Device Role / Timing Role: Closed-loop position controller interfacing with potentiometer feedback and driving H-bridge drivers. Use Value: Analog comparator with internal bandgap reference enables precise threshold detection without external voltage dividers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08AC60CLD | 60 KB Flash, 4 KB RAM, same HCS08 core but larger memory and additional SCI/I²C modules | Higher memory headroom for complex protocol stacks or firmware updates in field-deployed devices | Select when >32 KB Flash is required and pin compatibility with 44-pin LQFP package is acceptable |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+, 128 KB Flash, 16 KB RAM, higher performance but different architecture and toolchain | Migration path for future designs requiring RTOS support, USB, or enhanced peripheral integration | Select for new designs targeting long-term roadmap alignment with ARM ecosystem and scalable performance |
Compared with MC9S08AC60CLD and S9KEAZ128AMLH, the S9S08SG32E1CTL offers optimal balance of proven automotive qualification, minimal footprint (28-TSSOP), and sufficient resources for cost-sensitive embedded control-without requiring architectural rework or PCB redesign.
Availability
S9S08SG32E1CTL is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and home appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for S9S08SG32E1CTL 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 formed from the spin-off of Philips' semiconductor division, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The S9S08SG32E1CTL belongs to the legacy HCS08 microcontroller family designed specifically for cost-optimized, high-reliability embedded control in automotive and industrial environments where deterministic real-time response and extended temperature operation are critical.
FAQ
What is the maximum bus frequency supported by the S9S08SG32E1CTL?
The S9S08SG32E1CTL supports a maximum bus frequency of 40 MHz under standard operating conditions (-40°C to +125°C). At temperatures above 125°C, the maximum bus frequency is reduced to 36 MHz to maintain timing integrity and reliability. This specification is guaranteed across the full voltage range (2.7 V to 5.5 V) and validated per Freescale's Rev. 8 and Rev. 9 datasheets for the MC9S08SG32 series.
Does the S9S08SG32E1CTL include hardware security features to protect firmware?
Yes, the S9S08SG32E1CTL includes on-chip security circuitry that prevents unauthorized access to Flash and RAM contents via the background debug interface or mass erase commands. Security is enforced through nonvolatile option bytes (NVOPT) and flash protection registers (FPROT/NVPROT), which can be configured to lock debug access and prevent read-out of sensitive code or calibration data stored in memory.
Can the S9S08SG32E1CTL operate in ultra-low-power modes with real-time wake-up capability?
Yes, the S9S08SG32E1CTL supports Stop3 mode-a deep-sleep state with current consumption below 1 µA-while maintaining RTC functionality powered by an internal 1 kHz oscillator. This allows precise time-based wake-up without external components, making the S9S08SG32E1CTL suitable for battery-powered applications requiring multi-year operation and periodic sensor sampling.
What analog peripherals are integrated into the S9S08SG32E1CTL?
The S9S08SG32E1CTL integrates a 16-channel, 10-bit ADC with 2.5 µs conversion time, internal temperature sensor, and internal bandgap reference channel. It also includes two analog comparators (ACMP) with selectable interrupt on rising/falling/both edges and optional routing to TPM modules. Both ADC and ACMP remain operational in Stop3 mode, enabling low-power analog monitoring.
Is the S9S08SG32E1CTL qualified for automotive applications?
Yes, the S9S08SG32E1CTL is qualified to AEC-Q100 Grade 2 (-40°C to +105°C ambient) and supports extended temperature operation up to +125°C junction temperature. Its design includes automotive-grade ESD protection, robust EMC performance, and built-in system safeguards such as COP watchdog, low-voltage detection, and illegal opcode/address detection-making it suitable for body electronics and chassis-related control modules.
S9S08SG32E1CTL 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:
- 32KB (32K 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08SG32E1CTL FAQ
1.How can I place an order for S9S08SG32E1CTL through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08SG32E1CTL 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 S9S08SG32E1CTL reliable?
The price and inventory of S9S08SG32E1CTL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08SG32E1CTL is usually 5 days.
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S9S08SG32E1CTL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08SG32E1CTL 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 S9S08SG32E1CTL?
For technical support, including S9S08SG32E1CTL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08SG32E1CTL requirements.
6.How does Aetrix verify that S9S08SG32E1CTL is sourced from the original manufacturer or authorized distributors?
All S9S08SG32E1CTL 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 S9S08SG32E1CTL meets industry standards.
7.What is the process for return or replacement of S9S08SG32E1CTL?
All S9S08SG32E1CTL units undergo pre-shipment inspection (PSI). If there is an issue with S9S08SG32E1CTL, 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 S9S08SG32E1CTL part is unused and in its original packaging.
Return procedure for S9S08SG32E1CTL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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