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NXP Semiconductors S9S12G128F0MLHR
- Part No.:
- S9S12G128F0MLHR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
S9S12G128F0MLHR.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,851
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Product details
Overview
S9S12G128F0MLHR from NXP Semiconductors is a 16-bit automotive-grade microcontroller based on the S12 CPU12 core, featuring 128 KB on-chip Flash with ECC, 8 KB SRAM, and integrated CAN 2.0B controller (MSCAN), 10-bit ADC (8-channel), 8-channel PWM, and background debug interface. It operates at up to 25 MHz bus frequency and supports -40°C to +125°C ambient temperature for engine control, body electronics, and transmission modules.
For engineers reviewing the S9S12G128F0MLHR datasheet, S9S12G128F0MLHR pinout, S9S12G128F0MLHR application, or S9S12G128F0MLHR equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, integrated MSCAN with time-triggered capability, Flash ECC support for safety-critical firmware, and compatibility with legacy S12G toolchains and BDM debug infrastructure.
Technical Context
The S9S12G128F0MLHR implements the CPU12 instruction set with 16-bit data/24-bit address bus, uses an internal PLL to derive system clock from external crystal (4–8 MHz) or internal RC oscillator, and supports multiple low-power modes including Stop, Wait, and Freeze. Its memory map includes paged Flash, linear RAM, and peripheral register space mapped to fixed addresses.
Peripheral integration follows the S12G family architecture: the Port Integration Module (PIM) routes signals across 10 I/O ports (PA–PJ, PP, PS, PT, PM), enabling flexible pin multiplexing for ADC inputs, PWM outputs, SCI/SPI/SCI interfaces, and CAN transceiver connections - all configurable via dedicated control registers without requiring external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPU12 16-bit CISC core with 24-bit addressing; enables deterministic real-time execution and backward compatibility with legacy S12 codebases. |
| Flash Memory | 128 KB on-chip Flash with ECC and 1K EEPROM emulation; supports in-application programming (IAP) and secure flash protection. |
| RAM | 8 KB on-chip SRAM with parity checking; sufficient for RTOS stacks, CAN message buffers, and ADC data acquisition buffers. |
| ADC | 10-bit successive-approximation ADC with 8 input channels, 12.5 µs conversion time, and hardware trigger support from TIM/PWM/CAN events. |
| PWM | 8-channel 8-bit PWM module with center-aligned and edge-aligned modes, dead-time insertion, and synchronization to ADC sampling. |
| CAN Interface | Scalable Controller Area Network (MSCAN) compliant with ISO 11898-1; supports 1 Mbit/s, 64-message object buffer, and time-triggered communication mode. |
| Operating Temperature | -40°C to +125°C ambient; qualified per AEC-Q100 Grade 1, suitable for under-hood automotive applications without external thermal derating. |
| Package & Pin Count | 64-pin LQFP (MLHR suffix); provides 48 general-purpose I/O pins, 8 dedicated ADC inputs, 2 CAN bus pins, and full BDM debug interface (BKGD, RESET). |
Pinout & Package
Package: 64-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BKGD | Background Debug pin | Single-wire BDM interface for programming, debugging, and chip erase; requires external pull-up and level-shifting for host adapter compatibility. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced internally; triggers full system initialization and vector fetch from 0xFFFE–0xFFFF. |
| XTAL / EXTAL | Crystal oscillator inputs | Supports 4–8 MHz fundamental-mode crystals; configures main system clock source for PLL multiplication to 25 MHz bus speed. |
| CANH / CANL | CAN differential bus interface | Direct connection to ISO 11898-compliant transceiver; integrated CAN controller handles arbitration, error handling, and message filtering. |
| AD0–AD7 | Analog input channels | Eight 10-bit ADC inputs with programmable gain and reference selection (VDDA/VSSA or internal 2.5 V); support simultaneous sampling via hardware trigger. |
| PT0–PT7 | Timer/PWM output pins | Eight dedicated PWM output pins with configurable polarity, dead-time, and synchronization to ADC start-of-conversion signal. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash ECC | Detects and corrects single-bit errors in Flash memory during read operations, meeting ASIL-B functional safety requirements without external error correction logic. |
| Integrated MSCAN | Full CAN 2.0B controller with 64 message objects, hardware acceptance filtering, and time-triggered mode for deterministic scheduling in distributed control systems. |
| Background Debug (BDM) | Single-pin debug interface supporting flash programming, real-time register inspection, and breakpoint insertion without halting peripheral operation. |
| Low-Power Modes | Stop mode current < 10 µA at 25°C; Wake-up via CAN activity, external interrupt, or RTC alarm - critical for always-on vehicle networks. |
| ADC Hardware Triggering | ADC conversion can be initiated by TIM overflow, PWM period match, or CAN message reception - enabling synchronized sensor sampling in closed-loop control. |
| Port Integration Module (PIM) | Configurable I/O routing allows dynamic assignment of peripheral functions (e.g., SCI TX/RX, SPI MOSI/MISO) to multiple port pins, simplifying PCB layout and variant management. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time monitoring of crankshaft position, throttle angle, and oxygen sensor feedback in gasoline direct injection engines. IC Role / Device Role / Timing Role: Primary MCU executing fuel injection timing, spark advance calculation, and CAN-based diagnostic communication (UDS over CAN). Use Value: 25 MHz bus speed ensures sub-100 µs loop execution; MSCAN handles concurrent powertrain and chassis CAN traffic; Flash ECC prevents corruption of calibration tables. |
Use Scenario: Centralized management of door locks, window lifters, lighting sequences, and HVAC fan speed in premium vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves, driving relays via PWM-controlled MOSFETs, and logging fault codes via CAN. Use Value: 8-channel PWM drives multi-speed fans and LED dimming; 10-bit ADC reads potentiometer and thermistor inputs; AEC-Q100 Grade 1 ensures reliability in cabin environment. |
| Transmission Control Unit (TCU) | Electric Power Steering (EPS) |
|
Use Scenario: Closed-loop control of solenoid valves for gear shifting and torque converter lock-up in 6-speed automatic transmissions. IC Role / Device Role / Timing Role: Safety-aware controller performing watchdog supervision, sensor redundancy checks, and fail-safe actuator shutdown on fault detection. Use Value: Flash ECC and RAM parity support ISO 26262 ASIL-B compliance; ADC hardware triggering synchronizes valve current sensing with PWM drive edges. |
Use Scenario: Torque assist calculation and motor phase current regulation in column-assist EPS systems. IC Role / Device Role / Timing Role: Real-time motor controller reading steering torque sensor, vehicle speed, and motor current; generating three-phase PWM via external gate drivers. Use Value: 8-channel PWM supports complementary output pairs with dead-time control; CAN interface reports assist status and faults to vehicle network. |
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 |
|---|---|---|---|
| S9S12G128F0VHLR | Same core, Flash, and peripherals but in 64-pin QFP (VHLR) instead of LQFP (MLHR); identical pinout and thermal performance. | No functional difference; selected when board layout requires different footprint or reflow profile compatibility. | Drop-in replacement if QFP assembly process is preferred; verify land pattern and solder mask design rules match. |
| MC9S12G128MALR | Same silicon die but rated for -40°C to +85°C (industrial grade); lacks AEC-Q100 qualification and some high-temp Flash endurance specs. | Suitable for non-automotive industrial controls where extended temperature range is not required. | Lower-cost option for non-automotive designs; not acceptable for production automotive ECUs due to missing AEC-Q100 Grade 1 certification. |
Compared with S9S12G128F0MLHR, the VHLR variant offers identical functionality in a legacy QFP package for backward-compatible manufacturing, while the MALR variant sacrifices automotive qualification for cost reduction - making the MLHR the only choice for new AEC-Q100-compliant designs requiring 125°C operation.
Availability
S9S12G128F0MLHR is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control systems requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing from authorized NXP distribution channels.
Supply support for S9S12G128F0MLHR 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in microcontrollers, RF, and analog technologies.
The S9S12G128F0MLHR belongs to NXP's MC9S12G family - a mature, AEC-Q100-qualified 16-bit MCU platform designed specifically for cost-sensitive, safety-aware automotive body and powertrain control applications requiring long product lifecycles and robust toolchain support.
FAQ
What is the maximum operating frequency of the S9S12G128F0MLHR?
The S9S12G128F0MLHR achieves a maximum bus frequency of 25 MHz using its internal PLL, which multiplies an external 4–8 MHz crystal input. This frequency governs instruction execution, peripheral timing, and ADC conversion rates. The S9S12G128F0MLHR does not support overclocking beyond this specification, and sustained operation above 25 MHz may result in undefined behavior or data corruption.
Does the S9S12G128F0MLHR support CAN FD?
No, the S9S12G128F0MLHR integrates the legacy MSCAN module compliant with CAN 2.0B (up to 1 Mbit/s), not CAN FD. It lacks the variable bit rate, flexible data length, and CRC enhancements defined in ISO 11898-1:2015. For CAN FD requirements, designers must select newer NXP families such as S32K1 or S32K3 series - the S9S12G128F0MLHR remains limited to classical CAN protocols.
Is the S9S12G128F0MLHR pin-compatible with other S12G devices?
Yes, the S9S12G128F0MLHR shares the same 64-pin LQFP (MLHR) package and pinout with other S12G variants in the same density class (e.g., S9S12G64F0MLHR, S9S12G96F0MLHR), enabling hardware reuse across memory-size variants. However, pin compatibility does not guarantee software compatibility - differences in Flash size, peripheral enable bits, and memory map require firmware adaptation.
What debug interface does the S9S12G128F0MLHR use?
The S9S12G128F0MLHR uses the Background Debug Mode (BDM) interface via the BKGD pin, supporting single-wire communication for flash programming, real-time register access, and breakpoint debugging. It is compatible with standard NXP BDM tools (e.g., USB-ML-12, Cyclone Pro) and does not support JTAG or SWD. The S9S12G128F0MLHR requires no external debug header - only BKGD, RESET, and power connections are needed.
Does the S9S12G128F0MLHR include hardware security features?
The S9S12G128F0MLHR includes basic security features: flash block protection (via FPROT registers), secure boot vector masking, and background debug disable fuse. It does not implement cryptographic accelerators, secure key storage, or tamper detection. For ASIL-B compliance, designers must combine these features with external safety mechanisms - the S9S12G128F0MLHR itself meets ISO 26262 requirements only when used within a validated system architecture.
S9S12G128F0MLHR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 64-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:
- 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:
S9S12G128F0MLHR FAQ
1.How can I place an order for S9S12G128F0MLHR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12G128F0MLHR 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 S9S12G128F0MLHR reliable?
The price and inventory of S9S12G128F0MLHR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12G128F0MLHR is usually 5 days.
3.What payment methods are accepted for S9S12G128F0MLHR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12G128F0MLHR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12G128F0MLHR?
S9S12G128F0MLHR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12G128F0MLHR 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 S9S12G128F0MLHR?
For technical support, including S9S12G128F0MLHR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12G128F0MLHR requirements.
6.How does Aetrix verify that S9S12G128F0MLHR is sourced from the original manufacturer or authorized distributors?
All S9S12G128F0MLHR 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 S9S12G128F0MLHR meets industry standards.
7.What is the process for return or replacement of S9S12G128F0MLHR?
All S9S12G128F0MLHR units undergo pre-shipment inspection (PSI). If there is an issue with S9S12G128F0MLHR, 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 S9S12G128F0MLHR part is unused and in its original packaging.
Return procedure for S9S12G128F0MLHR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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