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NXP Semiconductors S9S12G128F0CLFR
- Part No.:
- S9S12G128F0CLFR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12G128F0CLFR.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,753
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Product details
Overview
S9S12G128F0CLFR from NXP Semiconductors is a 16-bit automotive-grade microcontroller featuring 128 KB on-chip Flash with ECC, 8 KB SRAM, and integrated CAN 2.0B controller. It operates at up to 25 MHz core frequency, supports -40°C to +125°C ambient temperature, and includes 10-bit ADC (8-channel), 8-bit DAC, PWM, and BDM debug interface. It is used in engine control units (ECUs) for real-time sensor signal acquisition and actuator drive.
For engineers reviewing the S9S12G128F0CLFR datasheet, S9S12G128F0CLFR pinout, S9S12G128F0CLFR application, or S9S12G128F0CLFR equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, CAN bus integration, Flash ECC support, 125°C operation, and compatibility with legacy S12G toolchains and development environments.
Technical Context
The S9S12G128F0CLFR implements the S12 CPU12 core with 16-bit data path and von Neumann architecture. It uses an internal PLL to derive system clocks from either external crystal (1–8 MHz) or internal RC oscillator (1 MHz nominal), enabling flexible clock tree configuration for deterministic real-time execution.
Its memory subsystem includes 128 KB Flash organized in 1-KB sectors with single-bit error correction and double-bit error detection (ECC), plus 8 KB of SRAM with parity protection. Peripheral integration follows the S12G family's modular design: MSCAN module supports full CAN 2.0B protocol with 15 message buffers, while the 10-bit ADC supports both software and hardware-triggered conversions with configurable sample-and-hold timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 CPU12 16-bit CISC core with 25 MHz max bus frequency |
| Flash Memory | 128 KB with ECC - enables reliable code storage in automotive environments with radiation-induced bit flips |
| SRAM | 8 KB with parity - supports safe runtime data handling under EMI stress |
| ADC | 10-bit, 8-channel, 12 µs conversion time - suitable for engine temperature, pressure, and throttle position sensing |
| CAN Interface | MSCAN module compliant with ISO 11898-1:2003 - provides robust serial communication for distributed vehicle networks |
| Operating Temperature | -40°C to +125°C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications |
| Package | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch) - standard surface-mount footprint compatible with industrial reflow profiles |
Pinout & Package
Package: 64-pin LQFP (10 × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply inputs | Separate domains for digital logic (VDD), analog peripherals (VDDA), and external oscillator (VDDX) - reduce noise coupling into ADC/DAC |
| VSS, VSSA, VSSX | Ground returns | Dedicated ground pins per domain ensure clean reference return paths and minimize ground bounce |
| XTAL, EXTAL | Crystal oscillator terminals | Support 1–8 MHz fundamental-mode crystals for precise clock source in engine timing-critical functions |
| RXCAN, TXCAN | CAN transceiver interface | Differential CAN bus I/O pins directly connect to external CAN PHY - no level-shifting required |
| AD0–AD7 | Analog input channels | Eight dedicated ADC input pins with programmable gain and selectable reference (VRL/VREFH) |
| PT0–PT7 | General-purpose I/O / PWM outputs | 8-bit port with PWM output capability - used for fuel injector timing, fan speed control, and solenoid drive |
| PP0–PP7 | General-purpose I/O / SCI/SPI signals | Configurable as UART (SCI) or SPI master/slave - enables communication with sensors, EEPROMs, or display modules |
| BKGD | Background Debug pin | Single-wire BDM interface for flash programming and real-time debugging without halting CPU operation |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | Enables fail-safe firmware execution in safety-critical ECUs by detecting and correcting single-bit errors during read operations |
| Integrated MSCAN Module | Reduces BOM count and PCB area by eliminating external CAN controller; supports automatic retransmission and error confinement |
| 10-bit ADC with Hardware Triggering | Allows synchronized sampling across multiple channels using timer or PWM events - essential for cylinder-specific combustion analysis |
| AEC-Q100 Grade 1 Qualification | Validated for continuous operation at 125°C ambient - meets OEM requirements for powertrain and chassis control modules |
| Background Debug Mode (BDM) | Permits non-intrusive firmware update and real-time variable monitoring via single-pin interface - simplifies field calibration and diagnostics |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Real-time acquisition of crankshaft position, camshaft angle, coolant temperature, and manifold pressure to compute ignition timing and fuel injection duration. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop combustion management algorithms with sub-millisecond interrupt latency. Use Value: Deterministic 25 MHz bus timing and hardware-triggered ADC ensure phase-accurate sensor sampling aligned to engine rotation events. |
Use Scenario: Monitoring gear selector position, turbine speed, oil temperature, and brake switch status to determine optimal shift points and torque converter lock-up. IC Role / Device Role / Timing Role: Central decision-making unit coordinating hydraulic solenoid actuation and CAN-based communication with engine and body controllers. Use Value: Integrated MSCAN and 8-channel PWM enable direct control of shift solenoids and real-time network messaging without external interface ICs. |
| Electric Power Steering (EPS) Controller | Brake-by-Wire Actuator Module |
Use Scenario: Processing torque sensor, motor position, and vehicle speed inputs to generate assist torque commands for brushless DC motor drive. IC Role / Device Role / Timing Role: Safety-relevant MCU performing ASIL-B-equivalent control loops with redundant ADC sampling and watchdog supervision. Use Value: Flash ECC and SRAM parity protect firmware and runtime variables against transient faults - critical for functional safety compliance. |
Use Scenario: Receiving brake pedal travel and pressure signals, validating redundancy paths, and commanding electro-hydraulic valve actuators during emergency braking events. IC Role / Device Role / Timing Role: Fault-tolerant controller executing dual-core-like monitoring via software partitioning and cross-checking of sensor inputs. Use Value: AEC-Q100 Grade 1 rating and 125°C operation guarantee uninterrupted performance in high-temperature brake module enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S12G128F0MLFR | Same die and peripherals, but rated for -40°C to +105°C (Grade 2) instead of +125°C (Grade 1) | Not qualified for under-hood powertrain locations requiring extended temperature range | Select only for cabin or chassis modules where ambient temperature remains ≤105°C |
| MC9S12G128MALR | Identical functionality and pinout, but packaged in 64-pin QFP with lead-free matte tin finish (vs. S9S12G128F0CLFR's lead-free NiPdAu finish) | No electrical or thermal difference; RoHS/ELV compliance identical; minor solderability variation in high-reliability reflow | Prefer S9S12G128F0CLFR for automotive production requiring NiPdAu for enhanced corrosion resistance and wire-bond reliability |
Compared with S9S12G128F0MLFR, the S9S12G128F0CLFR delivers guaranteed operation at 125°C - essential for engine bay placement - while the MC9S12G128MALR offers equivalent function with alternate surface finish optimized for specific assembly processes.
Availability
S9S12G128F0CLFR is available at Aetrix Electronics and suitable for engine control units, transmission control modules, electric power steering systems, and brake-by-wire actuators requiring stable component supply across multi-year automotive production cycles.
Supply support for S9S12G128F0CLFR 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 S9S12G128F0CLFR belongs to NXP's legacy S12G microcontroller family, designed specifically for cost-sensitive, high-reliability automotive body and powertrain applications requiring AEC-Q100 qualification and long-term supply stability.
FAQ
What is the maximum operating frequency of the S9S12G128F0CLFR?
The S9S12G128F0CLFR features a 16-bit S12 CPU12 core with a maximum bus frequency of 25 MHz. This is achieved using the internal Phase-Locked Loop (IPLL) to multiply the input clock from either an external crystal (1–8 MHz) or the internal RC oscillator. The 25 MHz bus speed ensures deterministic execution of real-time control tasks in automotive applications such as engine timing and fuel injection.
Does the S9S12G128F0CLFR support CAN FD?
No, the S9S12G128F0CLFR integrates the legacy MSCAN module compliant with CAN 2.0B (ISO 11898-1:2003), supporting data rates up to 1 Mbps and 11-bit identifiers. It does not support CAN FD features such as flexible data-rate switching, larger payloads (up to 64 bytes), or CRC enhancements. For CAN FD, designers should consider NXP's S32K series or standalone CAN FD transceivers paired with external controllers.
What debug interface does the S9S12G128F0CLFR use?
The S9S12G128F0CLFR uses the Background Debug Mode (BDM) interface via the BKGD pin. This single-wire, synchronous serial interface supports flash programming, real-time register inspection, breakpoint insertion, and non-intrusive variable monitoring without halting CPU execution. It requires an NXP-compatible BDM debugger (e.g., PE Micro Cyclone or SEGGER J-Link with BDM firmware).
Is the S9S12G128F0CLFR pin-compatible with other S12G family members?
Yes, the S9S12G128F0CLFR in 64-pin LQFP shares identical pinout and signal mapping with other S12G devices in the same package variant (e.g., S9S12G64F0CLFR, S9S12G96F0CLFR). This allows hardware reuse across memory-size variants, provided peripheral usage and Flash/SRAM requirements align with the target application's firmware footprint.
What AEC-Q100 grade is assigned to the S9S12G128F0CLFR?
The S9S12G128F0CLFR is qualified to AEC-Q100 Grade 1, meaning it is certified for continuous operation across the ambient temperature range of -40°C to +125°C. This qualification includes stress testing for thermal cycling, humidity bias, and electromigration - making it suitable for under-hood automotive applications including engine control, transmission, and braking systems.
S9S12G128F0CLFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- HCS12
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 12V1
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, IrDA, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.13V ~ 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:
S9S12G128F0CLFR FAQ
1.How can I place an order for S9S12G128F0CLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12G128F0CLFR 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 S9S12G128F0CLFR reliable?
The price and inventory of S9S12G128F0CLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12G128F0CLFR is usually 5 days.
3.What payment methods are accepted for S9S12G128F0CLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12G128F0CLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12G128F0CLFR?
S9S12G128F0CLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12G128F0CLFR 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 S9S12G128F0CLFR?
For technical support, including S9S12G128F0CLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12G128F0CLFR requirements.
6.How does Aetrix verify that S9S12G128F0CLFR is sourced from the original manufacturer or authorized distributors?
All S9S12G128F0CLFR 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 S9S12G128F0CLFR meets industry standards.
7.What is the process for return or replacement of S9S12G128F0CLFR?
All S9S12G128F0CLFR units undergo pre-shipment inspection (PSI). If there is an issue with S9S12G128F0CLFR, 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 S9S12G128F0CLFR part is unused and in its original packaging.
Return procedure for S9S12G128F0CLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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