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NXP Semiconductors S9S12G128F0MLH
- Part No.:
- S9S12G128F0MLH
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
S9S12G128F0MLH.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:9,292
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Product details
Overview
S9S12G128F0MLH 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), PWM (8-channel), and background debug interface. It is deployed in engine control units and transmission control modules requiring ASIL-B–capable deterministic real-time processing.
For engineers reviewing the S9S12G128F0MLH datasheet, S9S12G128F0MLH pinout, S9S12G128F0MLH application, or S9S12G128F0MLH equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, 128 KB Flash with single-bit error correction, CAN 2.0B compliance, 10-bit ADC resolution with external trigger support, and compatibility with standard S12G development toolchains including CodeWarrior and S32DS.
Technical Context
The S9S12G128F0MLH implements the S12 CPU12 core with 16-bit data path and von Neumann architecture, executing instructions from on-chip Flash or RAM. Its clock system integrates internal RC oscillator (1 MHz), external crystal input (1–32 MHz), and PLL for scalable bus frequencies up to 50 MHz.
Memory protection is enforced via memory map controller with configurable bank switching and security byte lock. Peripheral integration includes TIM16B8CV3 timer module with 8 input-capture/output-compare channels, MSCANV3 CAN controller with message buffers and acceptance filtering, and S12SCIV5 serial interface supporting full-duplex asynchronous communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 CPU12 16-bit CISC core with 25 MHz max core frequency and 50 MHz max bus frequency |
| Flash Memory | 128 KB on-chip Flash with ECC, supporting in-application programming and 100K erase/write cycles |
| RAM | 8 KB on-chip SRAM with retention during stop mode |
| ADC | 10-bit successive-approximation ADC with 8 input channels, 12 µs conversion time, and external trigger capability |
| CAN Interface | Scalable Controller Area Network (MSCAN) compliant with ISO 11898-1, supporting CAN 2.0B protocol with 15 message buffers |
| Operating Temperature | -40°C to +125°C ambient, qualified per AEC-Q100 Grade 1 for automotive powertrain applications |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 |
Pinout & Package
64-pin LQFP package (MLH suffix), 10 mm × 10 mm body, 0.5 mm lead pitch, exposed thermal pad, JEDEC MS-026AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply inputs | Separate digital (VDD), analog (VDDA), and XOSC (VDDX) rails enable noise isolation for ADC and oscillator stability |
| VSS, VSSA, VSSX | Ground returns | Dedicated analog (VSSA) and XOSC (VSSX) grounds minimize coupling into sensitive analog/oscillator circuits |
| XTAL, EXTAL | Crystal oscillator terminals | Supports fundamental-mode quartz crystals from 1–32 MHz; internal load capacitors configurable via register |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external reset sources or watchdog timeout assertion |
| PORTA[7:0] | General-purpose I/O / ADC channel inputs | PA0–PA7 serve dual roles as GPIO and ADC0–ADC7 inputs; configurable pull-up/pull-down and slew rate |
| PORTB[7:0] | General-purpose I/O / CAN TX/RX | PB0/PB1 dedicated to CAN0TX/CAN0RX; remaining pins support interrupt-on-change and PWM output |
| PORTC[7:0] | General-purpose I/O / SCI/SPI | PC0–PC1: SCI0TX/SCI0RX; PC2–PC3: SPI0SCK/SPI0MOSI; other pins support timer capture/compare functions |
| PORTD[7:0] | General-purpose I/O / PWM outputs | PD0–PD7 support 8-channel PWM with center-aligned or edge-aligned modes and dead-time insertion |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | 128 KB Flash with single-bit error correction and double-bit error detection ensures reliable code execution in harsh automotive environments |
| Integrated CAN 2.0B Controller | MSCAN module supports bit rates up to 1 Mbps, automatic retransmission, and hardware acceptance filtering for reduced CPU overhead |
| Background Debug Module (BDM) | Single-wire BDM interface enables non-intrusive debugging, flash programming, and real-time register inspection without halting CPU operation |
| Low-Power Stop Mode | Current draw ≤ 35 µA in stop mode with RTC and selected wakeup sources active, enabling battery-backed operation in sleep states |
| Security Byte Lock | Configurable security byte prevents unauthorized readout of Flash contents and disables BDM access after programming |
Applications
| Engine Control Unit (ECU) | Transmission Control Module (TCM) |
|---|---|
Use Scenario: Real-time monitoring of crankshaft position, throttle angle, and oxygen sensor signals in gasoline direct injection engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop fuel injection and spark timing algorithms with sub-millisecond interrupt latency. Use Value: Deterministic 25 MHz core timing, 10-bit ADC with external trigger synchronization to crank sensor edges, and CAN 2.0B for actuator command distribution. |
Use Scenario: Gear shift logic, clutch pressure control, and torque converter lockup management in 6-speed automatic transmissions. IC Role / Device Role / Timing Role: Real-time controller managing solenoid drivers and hydraulic pressure feedback loops with precise PWM timing. Use Value: 8-channel PWM with programmable dead time and synchronized update, CAN messaging for vehicle network coordination, and AEC-Q100 Grade 1 reliability. |
| Body Control Module (BCM) | Electric Power Steering (EPS) |
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC fan speed in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and relaying commands over CAN backbone. Use Value: Integrated SCI and SPI peripherals reduce external component count; 8 KB SRAM supports multi-tasking firmware with diagnostic logging buffer. |
Use Scenario: Torque assist calculation, motor phase current sensing, and fault-safe shutdown in brushless DC motor-based steering systems. IC Role / Device Role / Timing Role: Safety-critical controller implementing ASIL-B software partitioning with independent watchdog supervision. Use Value: Dual-voltage domain I/O (5 V tolerant), 10-bit ADC with simultaneous sampling on multiple channels, and hardware CRC for sensor data integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S12G128F0VHL | Same core, Flash, and peripherals but in 64-pin TQFP (VHL) package with different thermal pad layout and slightly higher thermal resistance | Preferred for legacy PCB designs using TQFP footprint; identical register mapping and firmware compatibility | Select when board layout uses TQFP land pattern or requires alternate thermal dissipation profile |
| MC9S12G128MAL | Identical functionality but manufactured under older mask set (rev. 1.26 vs. 1.28); lacks updated electrical specs in Table A-14 (Rev. 1.28) | Valid for cost-sensitive industrial applications where AEC-Q100 Grade 1 is not required | Choose only if sourcing legacy stock; new designs should specify S9S12G128F0MLH for latest characterization and qualification |
Compared with S9S12G128F0VHL and MC9S12G128MAL, the S9S12G128F0MLH offers the most recent revision-controlled electrical specifications, enhanced ESD robustness per Rev. 1.28 updates, and guaranteed availability through NXP's long-term automotive product roadmap.
Availability
S9S12G128F0MLH is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for S9S12G128F0MLH 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 S9S12G128F0MLH belongs to the MC9S12G family - a line of AEC-Q100–qualified 16-bit microcontrollers designed specifically for cost-sensitive automotive powertrain and chassis applications requiring functional safety and long-term supply assurance.
FAQ
What is the maximum operating frequency of the S9S12G128F0MLH?
The S9S12G128F0MLH supports a maximum core frequency of 25 MHz and a maximum bus frequency of 50 MHz when using the internal PLL with an external crystal source. This timing is validated across the full -40°C to +125°C temperature range and meets AEC-Q100 Grade 1 requirements. The S9S12G128F0MLH achieves this performance while maintaining deterministic interrupt latency critical for real-time engine control tasks.
Does the S9S12G128F0MLH support CAN FD?
No, the S9S12G128F0MLH implements the MSCANV3 module compliant with ISO 11898-1:2015 for Classical CAN (CAN 2.0B) only, supporting bit rates up to 1 Mbps. It does not support CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD applications, designers must select NXP's S32K series or standalone CAN FD transceivers paired with external controllers.
What debug interface does the S9S12G128F0MLH use?
The S9S12G128F0MLH uses the Background Debug Module (BDM) interface, a single-wire serial protocol compatible with standard BDM debug probes such as P&E Micro's Cyclone and NXP's OSJTAG adapters. This interface supports full-speed debugging, flash programming, register inspection, and breakpoint setting without requiring dedicated JTAG pins or halting CPU execution during data reads.
Is the S9S12G128F0MLH pin-compatible with other MC9S12G devices?
Yes, the S9S12G128F0MLH shares the same 64-pin LQFP (MLH) package and pinout with other MC9S12G devices in the same density class, including S9S12G64F0MLH and S9S12G96F0MLH. Pin assignments for power, ground, reset, oscillator, BDM, and peripheral signals are identical; only Flash size and certain peripheral enable bits differ - enabling firmware reuse across variants with minimal configuration changes.
What is the Flash endurance specification for the S9S12G128F0MLH?
The S9S12G128F0MLH guarantees 100,000 erase/write cycles per Flash block and 20-year data retention at 125°C, as specified in the MC9S12G Family Data Sheet Rev. 1.28. Each Flash block supports individual erasure, and ECC logic transparently corrects single-bit errors during read operations - ensuring long-term reliability in automotive applications subject to frequent over-the-air (OTA) updates.
S9S12G128F0MLH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- 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:
- 54
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12G128F0MLH FAQ
1.How can I place an order for S9S12G128F0MLH through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12G128F0MLH 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 S9S12G128F0MLH reliable?
The price and inventory of S9S12G128F0MLH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12G128F0MLH is usually 5 days.
3.What payment methods are accepted for S9S12G128F0MLH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12G128F0MLH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12G128F0MLH?
S9S12G128F0MLH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12G128F0MLH 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 S9S12G128F0MLH?
For technical support, including S9S12G128F0MLH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12G128F0MLH requirements.
6.How does Aetrix verify that S9S12G128F0MLH is sourced from the original manufacturer or authorized distributors?
All S9S12G128F0MLH 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 S9S12G128F0MLH meets industry standards.
7.What is the process for return or replacement of S9S12G128F0MLH?
All S9S12G128F0MLH units undergo pre-shipment inspection (PSI). If there is an issue with S9S12G128F0MLH, 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 S9S12G128F0MLH part is unused and in its original packaging.
Return procedure for S9S12G128F0MLH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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