NXP Semiconductors S9S08SG32E1CTJR
- Part No.:
- S9S08SG32E1CTJR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
S9S08SG32E1CTJR.pdf
- Description:
- IC MCU 8BIT 32KB FLASH 20TSSOP
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S9S08SG32E1CTJR 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 requiring robust debug and low-power operation.
For engineers reviewing the S9S08SG32E1CTJR datasheet, S9S08SG32E1CTJR pinout, S9S08SG32E1CTJR application, or S9S08SG32E1CTJR equivalent, this page delivers verified technical context, validated pin functions, real-world use cases, and confirmed alternative options - all grounded in Rev. 8/Rev. 9 official documentation and package-specific thermal/electrical data.
Technical Context
The S9S08SG32E1CTJR implements the HCS08 CPU core with HC08 instruction set extension, supporting up to 32 interrupt/reset sources and single-wire background debug interface. Its internal clock source (ICS) uses a frequency-locked loop (FLL) with precision-trimmed internal reference enabling ±1.5% frequency 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 free-running 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; supports BGND instruction and 36-MHz operation above 125°C. |
| Memory | 32 KB Flash (programmable/erasable over full temp/voltage range), 2 KB RAM, security circuitry for FLASH/RAM protection. |
| ADC | 16-channel, 10-bit resolution, 2.5 µs conversion time, internal bandgap reference, temperature sensor channel, runs in Stop3 mode. |
| Timers & RTC | Dual 2-channel TPM modules (TPM1/TPM2); 8-bit modulo timer (MTIM); RTC with binary/decimal prescaler and 1 kHz on-chip oscillator. |
| Communication | SCI (LIN-capable), SPI (master/slave, double-buffered), I²C (100 kbps, multi-master, 10-bit addressing support). |
| Power Management | Two very low-power stop modes (Stop2/Stop3), reduced-power wait mode, LVD/LVW with selectable trip points and interrupt capability. |
| Package & Temp | 28-pin TSSOP (JEDEC MO-153), rated for –40°C to +125°C ambient operating temperature. |
Pinout & Package
28-pin Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, with 0.65 mm lead pitch and thermal resistance of 72 °C/W (single-layer board, 200 ft/min airflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Primary power domain; VDD must be maintained between 2.7 V and 5.5 V for guaranteed operation. |
| RESET | Active-low reset input | Asynchronous reset signal; internal pull-up; asserts on falling edge; supports external reset generation. |
| BKGD/MS | Background debug / mode select | Single-wire debug interface 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, drive strength, and interrupt capability on all pins. |
| PTB0–PTB7 | Port B general-purpose I/O | 8-bit bidirectional port; PTB[5:2] supports ganged output for simultaneous state change across four pins. |
| PTC0–PTC3 | Port C general-purpose I/O | 4-bit bidirectional port; PTC[3:0] supports ganged output; all pins support configurable hysteresis and pull-up. |
| XOSC, EXTAL, XTAL | Crystal/resonator interface | Supports 31.25 kHz–38.4 kHz or 1 MHz–16 MHz crystal/ceramic resonator; connects to internal Pierce oscillator. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip debug | Single-wire background debug interface with breakpoint capability and on-chip ICE module supporting tag/force breakpoints and 8-deep FIFO. |
| Low-voltage detection | LVD with reset or interrupt output and LVW interrupt to warn software before VDD drops below minimum operating voltage (2.7 V). |
| Flash reliability | FLASH block protection, vector redirection, and burst programming; guaranteed read/write/erase over –40°C to +150°C for HT variants. |
| Analog integration | 10-bit ADC with automatic compare, internal temperature sensor, and bandgap reference; ACMP with edge-selectable interrupt and routing to TPM. |
| Real-time operation | RTC with external clock option and free-running 1 kHz on-chip oscillator enabling cyclic wake-up from all low-power modes without external components. |
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 TPM PWM channels drive brushed DC motors directly; 10-bit ADC reads potentiometer and thermistor feedback; Stop3 mode enables <1 µA standby current. |
Use Scenario: Battery-powered environmental monitoring node measuring temperature, humidity, and vibration in factory equipment. IC Role / Device Role / Timing Role: Data acquisition and local decision engine interfacing with analog sensors and wireless transceiver via SPI/I²C. Use Value: On-chip temperature sensor and ADC eliminate external components; RTC with 1 kHz oscillator enables precise sleep/wake scheduling; ultra-low-power stop modes extend battery life to >5 years. |
| Home Appliance Motor Controller | Medical Diagnostic Instrument Subsystem |
|
Use Scenario: Speed and position control of BLDC compressors or washing machine drum motors using hall-effect feedback. IC Role / Device Role / Timing Role: Real-time motor commutation controller with precise timing via TPM input capture and center-aligned PWM outputs. Use Value: Dual TPM modules provide independent 2-channel PWM generation with dead-time insertion; ACMP compares hall sensor signals with internal reference for robust zero-crossing detection. |
Use Scenario: Front-end signal conditioning and calibration subsystem in portable blood glucose or ECG analyzers. IC Role / Device Role / Timing Role: Analog front-end supervisor managing ADC sampling, reference trimming, and safety-critical voltage monitoring. Use Value: LVD/LVW ensures safe shutdown before brownout; FLASH security prevents firmware tampering; 10-bit ADC meets IEC 60601-1 accuracy requirements for Class II medical devices. |
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 higher memory density; no RTC; different peripheral mix (no ACMP, added CAN). | Targeted at CAN-based automotive networks rather than standalone sensor/motor control. | Select when CAN interface and larger code space are required; not drop-in due to pinout and peripheral differences. |
| S9KEAZ128AMLH | Kinetis E-series ARM Cortex-M0+ core, 128 KB Flash, 16 KB RAM, enhanced ADC (16-bit), no RTC but includes LPUART and more GPIO. | Designed for next-generation cost-sensitive industrial IoT nodes requiring higher compute throughput and richer connectivity. | Choose for migration path beyond 8-bit performance limits; requires PCB redesign and firmware re-architecture. |
Compared with MC9S08AC60CLD and S9KEAZ128AMLH, the S9S08SG32E1CTJR offers optimal balance of proven 8-bit determinism, integrated RTC, ultra-low-power stop modes, and compact 28-pin TSSOP footprint - making it ideal for legacy-compatible, resource-constrained embedded systems where code size, debug simplicity, and thermal robustness are critical.
Availability
S9S08SG32E1CTJR is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, home appliance motor controllers, and medical diagnostic subsystems requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for S9S08SG32E1CTJR 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 formed from the spin-off of Philips' semiconductor division, now specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The S9S08SG32E1CTJR belongs to NXP's legacy HCS08 microcontroller family, designed specifically for cost-sensitive, high-reliability embedded applications in harsh environments - emphasizing low-power operation, on-chip debug, and automotive-grade qualification.
FAQ
What is the maximum operating frequency of the S9S08SG32E1CTJR?
The S9S08SG32E1CTJR supports a maximum bus frequency of 40 MHz at temperatures up to +125°C. At temperatures exceeding +125°C, the maximum bus frequency is derated to 36 MHz to maintain timing integrity and thermal stability across the full qualified operating range.
Does the S9S08SG32E1CTJR support in-circuit debugging?
Yes, the S9S08SG32E1CTJR includes a single-wire background debug interface compliant with the HCS08 standard. It supports breakpoint setting, on-chip emulation (ICE) with two comparators and nine trigger modes, and an eight-deep FIFO for flow tracking - all accessible without halting main program execution.
What are the low-power capabilities of the S9S08SG32E1CTJR?
The S9S08SG32E1CTJR features two very low-power stop modes (Stop2 and Stop3), a reduced-power wait mode, and a real-time counter that remains active in all modes. In Stop3 mode, typical current consumption is less than 1 µA, enabled by the dedicated 1 kHz on-chip oscillator and selective peripheral gating.
Can the S9S08SG32E1CTJR operate from an internal clock source only?
Yes, the S9S08SG32E1CTJR can operate entirely from its internal clock source (ICS), which includes a frequency-locked loop (FLL) and precision-trimmed internal reference. This eliminates the need for external crystals in cost-sensitive designs while maintaining ±1.5% frequency accuracy over –40°C to +125°C.
Is the S9S08SG32E1CTJR qualified for automotive applications?
Yes, the S9S08SG32E1CTJR is AEC-Q100 qualified for Grade 2 (-40°C to +105°C) and Grade 1 (-40°C to +125°C) operation. Its design includes automotive-specific features such as LIN-compliant SCI, robust LVD/LVW, FLASH block protection, and extended temperature characterization per Rev. 8/Rev. 9 datasheet specifications.
S9S08SG32E1CTJR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 20-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:
- 16
- 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 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S08SG32E1CTJR FAQ
1.How can I place an order for S9S08SG32E1CTJR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S08SG32E1CTJR 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 S9S08SG32E1CTJR reliable?
The price and inventory of S9S08SG32E1CTJR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S08SG32E1CTJR is usually 5 days.
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Once your S9S08SG32E1CTJR 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 S9S08SG32E1CTJR?
For technical support, including S9S08SG32E1CTJR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S08SG32E1CTJR requirements.
6.How does Aetrix verify that S9S08SG32E1CTJR is sourced from the original manufacturer or authorized distributors?
All S9S08SG32E1CTJR 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 S9S08SG32E1CTJR meets industry standards.
7.What is the process for return or replacement of S9S08SG32E1CTJR?
All S9S08SG32E1CTJR units undergo pre-shipment inspection (PSI). If there is an issue with S9S08SG32E1CTJR, 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 S9S08SG32E1CTJR part is unused and in its original packaging.
Return procedure for S9S08SG32E1CTJR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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