NXP Semiconductors S9S08SG32E1CTLR
- Part No.:
- S9S08SG32E1CTLR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
S9S08SG32E1CTLR.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 28TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S9S08SG32E1CTLR from NXP Semiconductors (formerly Freescale) is an 8-bit HCS08 microcontroller with 32 KB on-chip 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 S9S08SG32E1CTLR datasheet, S9S08SG32E1CTLR pinout, S9S08SG32E1CTLR application, or S9S08SG32E1CTLR equivalent, key selection criteria include Flash endurance (100k erase/write cycles), stop3-mode operation with RTC and ADC active, internal clock source (ICS) with ±1.5% accuracy over temperature, and single-wire background debug interface compatibility.
Technical Context
The S9S08SG32E1CTLR implements the HCS08 CPU core with HC08 instruction set extension, supporting up to 32 interrupt/reset sources and BGND instruction for debug entry. Its memory subsystem includes 32 KB of on-chip Flash with block protection, 2 KB RAM, and nonvolatile option registers (NVOPT, NVFTRIM) for configuration retention across power cycles.
Peripherals are tightly coupled to low-power operation: the RTC runs in all modes including stop3 using a dedicated 1 kHz internal oscillator; the 10-bit ADC completes conversions in 2.5 µs and remains functional in stop3; and the analog comparator (ACMP) supports edge-triggered interrupts and routing to TPM modules for hardware synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS08 8-bit CPU with 40 MHz max bus frequency and BGND debug instruction |
| Flash Memory | 32 KB on-chip Flash with 100,000 erase/write cycles and block protection |
| RAM Size | 2 KB on-chip RAM with retention in wait and stop modes |
| ADC Resolution | 10-bit SAR ADC with 16-channel input, 2.5 µs conversion time, and temperature sensor |
| Operating Temp | -40°C to +125°C ambient, qualified for automotive AEC-Q100 Grade 2 |
| Clock Sources | Internal ICS with FLL (2–20 MHz bus), external crystal/ceramic (31.25 kHz–16 MHz) |
| Debug Interface | Single-wire background debug (BDM) with breakpoint support and on-chip ICE module |
Pinout & Package
Package: 28-pin TSSOP (Thin Shrink Small Outline Package), 4.4 mm × 9.7 mm body, 0.65 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 2.7–5.5 V supply pins with decoupling required per datasheet layout guidelines |
| XTAL, EXTAL | Crystal oscillator inputs | Supports Pierce oscillator configuration for 31.25 kHz–16 MHz crystals or ceramic resonators |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset signal or power-on reset assertion |
| BKGD/MS | Background debug / mode select | Single-wire BDM communication pin; also selects active background mode during reset |
| PTA0–PTA7 | Port A general-purpose I/O | 8-bit port with configurable pull-up, slew rate, drive strength, and interrupt capability on all pins |
| PTB0–PTB7 | Port B general-purpose I/O | 8-bit port; PTB[5:2] supports ganged output for simultaneous state change |
| PTC0–PTC7 | Port C general-purpose I/O | 8-bit port; PTC[3:0] supports ganged output; all pins support pin interrupt with edge/level sensitivity |
Key Features
| Feature | Design Value |
|---|---|
| Stop3 Low-Power Mode | RTC, ADC, ACMP, and I/O remain active while CPU and most clocks halt - enables battery-backed real-time sensing |
| Internal Clock Source (ICS) | FLL-based clock generator with factory-trimmed internal reference (±0.2% resolution, ±1.5% deviation over -40°C to +125°C) |
| Security Circuitry | FLASH and RAM protection via nonvolatile options register (NVOPT); prevents unauthorized read-out or reprogramming |
| Peripheral Integration | Dual 2-channel TPM modules, SCI with LIN break generation/detection, SPI with double-buffering, I²C up to 100 kbps |
| ADC Temperature Sensor | On-die temperature sensor with calibrated slope (1.65 mV/°C typical) usable for thermal monitoring without external components |
Applications
| Automotive Body Control Module | Industrial Motor Drive Interface |
|---|---|
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 sensor polling. Use Value: Stop3 mode enables periodic wake-up for status checks while consuming <1 µA, extending battery life in sleep states. | Use Scenario: Compact embedded controller for BLDC motor commutation feedback, current sensing, and fault reporting in HVAC blowers. IC Role / Device Role / Timing Role: Real-time peripheral coordinator managing ADC sampling, TPM-generated PWM, and SCI-based host communication. Use Value: Integrated 10-bit ADC with 2.5 µs conversion and internal bandgap reference ensures accurate current measurement without external precision references. |
| Smart Appliance Timer System | Medical Diagnostic Equipment Subsystem |
Use Scenario: Time-of-day scheduling, user interface response, and safety interlock monitoring in washing machines and dishwashers. IC Role / Device Role / Timing Role: RTC-based scheduler with calendar functions and interrupt-driven I/O handling for push-button and display control. Use Value: On-chip RTC with free-running 1 kHz oscillator eliminates need for external timing crystal, reducing BOM count and PCB area. | Use Scenario: Standby monitoring and self-test sequencing in portable diagnostic devices requiring long shelf life and reliable wake-up. IC Role / Device Role / Timing Role: Low-power supervisor managing voltage monitoring (LVD/LVW), memory integrity checks, and controlled boot initialization. Use Value: Dual low-voltage detection (reset + interrupt) allows graceful shutdown before brownout, preserving data integrity in S9S08SG32E1CTLR RAM and nonvolatile registers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S08AC60CFGE | 60 KB Flash, 4 KB RAM, same HCS08 core but higher memory density and enhanced ADC (12-bit, 1.2 µs) | Requires larger PCB footprint (44-pin LQFP); not drop-in compatible due to pin count and package mismatch | Select when >32 KB Flash or faster ADC performance is required; verify layout compatibility for 44-pin package |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+ core, 128 KB Flash, 16 KB RAM, higher performance but different toolchain and architecture | Not software-compatible; requires full firmware rewrite and new debug infrastructure | Choose for future-proofing or higher throughput needs; avoid if legacy HCS08 codebase must be retained |
Compared with MC9S08AC60CFGE and S9KEAZ128AMLH, the S9S08SG32E1CTLR offers optimal balance of proven automotive qualification, compact 28-TSSOP packaging, and sufficient memory/peripherals for cost-sensitive body electronics - without architectural migration or layout redesign overhead.
Availability
S9S08SG32E1CTLR is available at Aetrix Electronics and suitable for automotive body control, industrial motor interface, smart appliance timer systems, and medical diagnostic subsystems requiring stable component supply and long-term lifecycle support.
Supply support for S9S08SG32E1CTLR 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 S9S08SG32E1CTLR belongs to the HCS08 microcontroller family designed specifically for cost-optimized, high-reliability embedded control in automotive body electronics and industrial automation where deterministic real-time response and extended temperature operation are critical.
FAQ
What is the maximum operating frequency of the S9S08SG32E1CTLR?
The S9S08SG32E1CTLR supports a maximum bus frequency of 40 MHz when operating within its specified voltage (2.7–5.5 V) and temperature (-40°C to +125°C) ranges. This frequency is achieved using the internal clock source (ICS) with FLL enabled and properly configured external or internal reference. The actual achievable frequency depends on the selected clock mode and trimming settings stored in the NVFTRIM register.
Does the S9S08SG32E1CTLR support in-circuit debugging?
Yes, the S9S08SG32E1CTLR supports in-circuit debugging via a single-wire background debug (BDM) interface. It includes an on-chip debug module with two comparators, nine trigger modes, and an eight-deep FIFO for storing flow-change addresses. The S9S08SG32E1CTLR also supports one hardware breakpoint during active debugging and additional breakpoints managed by the debug monitor.
Can the S9S08SG32E1CTLR operate in ultra-low-power modes?
Yes, the S9S08SG32E1CTLR supports multiple low-power modes including stop2, stop3, and wait. In stop3 mode - its deepest low-power state - the S9S08SG32E1CTLR maintains RTC operation, ADC readiness, ACMP functionality, and GPIO wake-up capability while drawing less than 1 µA typical current. This makes it suitable for battery-powered applications requiring periodic wake-up without external timing components.
What peripherals are included in the S9S08SG32E1CTLR?
The S9S08SG32E1CTLR integrates a 10-bit ADC with 16 channels and temperature sensor, two 2-channel TPM modules for PWM and capture, SCI with LIN support, SPI with double buffering, I²C up to 100 kbps, analog comparator (ACMP), real-time counter (RTC), modulo timer (MTIM), and system-level features including COP watchdog and low-voltage detect/warning. All peripherals are accessible via memory-mapped registers and support interrupt-driven operation.
Is the S9S08SG32E1CTLR qualified for automotive applications?
Yes, the S9S08SG32E1CTLR is qualified to AEC-Q100 Grade 2 (-40°C to +105°C ambient) and supports extended temperature operation up to +125°C. It includes automotive-specific features such as LIN-compliant SCI, robust EMC performance, flash endurance (100k cycles), and security circuitry to prevent unauthorized access - making it suitable for body electronics, lighting control, and sensor interface modules in production vehicles.
S9S08SG32E1CTLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- S08
- Packaging:
- Tape & Reel (TR)
- 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:
S9S08SG32E1CTLR FAQ
1.How can I place an order for S9S08SG32E1CTLR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08SG32E1CTLR 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 S9S08SG32E1CTLR reliable?
The price and inventory of S9S08SG32E1CTLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08SG32E1CTLR is usually 5 days.
3.What payment methods are accepted for S9S08SG32E1CTLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S08SG32E1CTLR transactions.
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4.How is shipping managed for S9S08SG32E1CTLR?
S9S08SG32E1CTLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S08SG32E1CTLR 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 S9S08SG32E1CTLR?
For technical support, including S9S08SG32E1CTLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08SG32E1CTLR requirements.
6.How does Aetrix verify that S9S08SG32E1CTLR is sourced from the original manufacturer or authorized distributors?
All S9S08SG32E1CTLR 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 S9S08SG32E1CTLR meets industry standards.
7.What is the process for return or replacement of S9S08SG32E1CTLR?
All S9S08SG32E1CTLR units undergo pre-shipment inspection (PSI). If there is an issue with S9S08SG32E1CTLR, 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 S9S08SG32E1CTLR part is unused and in its original packaging.
Return procedure for S9S08SG32E1CTLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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