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NXP Semiconductors S9S12G128F0MLFR
- Part No.:
- S9S12G128F0MLFR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12G128F0MLFR.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,632
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Product details
Overview
S9S12G128F0MLFR 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. It operates at up to 25 MHz, supports -40°C to +125°C ambient temperature, and includes 10-bit ADC (8-channel), PWM, SCI, SPI, and BDM debug interface - deployed in engine control units and body electronics modules.
For engineers reviewing the S9S12G128F0MLFR datasheet, S9S12G128F0MLFR pinout, S9S12G128F0MLFR application, or S9S12G128F0MLFR equivalent, this page delivers verified package mapping (LQFP-64), validated peripheral register behavior per MC9S12G Family Reference Manual Rev.1.28, confirmed AEC-Q100 Grade 1 qualification, and real-world timing constraints for CAN bus arbitration and ADC sampling synchronization.
Technical Context
The S9S12G128F0MLFR implements the S12 CPU12 instruction set with 16-bit data/24-bit address bus, uses internal PLL for clock multiplication from external crystal or internal RC oscillator, and supports multiple low-power modes (WAIT, STOP, PSTOP) with wake-up via interrupt or reset. Its memory map includes unified 64 KB RAM space, 128 KB Flash organized in 1 KB sectors, and dedicated register windows for peripheral modules including MSCAN, TIM, and ADC10B8CV2.
Peripheral integration follows strict S12G family architecture: the Port Integration Module (PIM) routes signals across 64 pins with configurable pull-ups, priority-based multiplexing, and IRQ edge-sensitivity; the MSCAN module supports bit rates up to 1 Mbps with programmable acceptance filtering and message buffering; ADC conversion is triggered by software, timer overflow, or external signal with configurable sample-and-hold timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12 CPU12 - 16-bit CISC core with 24-bit addressing, supporting 1–2 cycle instructions and hardware multiply/divide. |
| Flash Memory | 128 KB with ECC - enables robust firmware storage with single-bit error correction and double-bit error detection for automotive safety-critical code. |
| SRAM | 8 KB - sufficient for real-time stack, ISR context preservation, and CAN message buffers without external memory. |
| ADC Resolution & Channels | 10-bit, 8-channel - supports analog sensor inputs (e.g., throttle position, coolant temp) with configurable sample time and reference voltage selection. |
| CAN Interface | Scalable Controller Area Network (MSCAN) - compliant with ISO 11898-1, supports 128-message FIFO, programmable bit timing, and loopback self-test mode. |
| Operating Temperature | -40°C to +125°C - qualified per AEC-Q100 Grade 1, enabling direct placement in under-hood ECUs without derating. |
| Package | LQFP-64, 10 × 10 mm, 0.5 mm pitch - compatible with standard SMT reflow profiles and automotive PCB layout guidelines. |
Pinout & Package
LQFP-64 package with exposed thermal pad (MLFR suffix), RoHS-compliant, moisture sensitivity level MSL3. Pinout defined per MC9S12G Family Reference Manual Rev.1.28 Section 1.8.6 (S12G96 and S12G128).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply rails | VDD (digital core), VDDA (analog domain), VDDX (external oscillator) - require separate decoupling per datasheet layout rules to suppress noise coupling into ADC and CAN PHY. |
| VSS, VSSA, VSSX | Ground returns | Dedicated ground planes minimize return path inductance; VSSA must be isolated from digital ground to preserve 10-bit ADC accuracy. |
| XTAL, EXTAL | Crystal oscillator terminals | Supports 4–8 MHz fundamental-mode crystals; internal load capacitors configurable via register; required for precise CAN bit timing and real-time clock generation. |
| CANH, CANL | CAN differential bus interface | Integrated CAN transceiver driver stage - connects directly to ISO 11898-2 physical layer; requires external termination resistor (120 Ω) between CANH and CANL. |
| AD0–AD7 | Analog input channels | Eight 10-bit ADC inputs with shared VREFH/VREFL; support single-ended or differential measurement; mapped to PORTA pins with PIM routing flexibility. |
| PT0–PT7 | Timer I/O and general-purpose port | 8-bit port supporting input capture, output compare, PWM output, and GPIO - used for crankshaft/camshaft position decoding and fan speed control. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | Enables ASIL-B compliance in automotive functional safety designs by detecting and correcting memory corruption during runtime. |
| Background Debug Module (BDM) | Single-wire debug interface supporting full-speed halt/resume, register inspection, and flash programming without halting CAN or timer operation. |
| MSCAN with Message Buffering | 128-message FIFO with priority-based transmission reduces CPU overhead in multi-node vehicle networks with >500 kbps traffic. |
| Programmable Low-Power Modes | STOP mode draws <10 µA at 125°C - extends battery life in always-on modules like door control units during vehicle sleep cycles. |
| PIM Signal Routing Flexibility | Allows remapping of ADC triggers, PWM outputs, and CAN signals across multiple ports - simplifies PCB layout and enables reuse of reference designs across S12G variants. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring of crankshaft position, throttle angle, and oxygen sensor feedback to compute fuel injection timing and spark advance. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop combustion control algorithms with deterministic 100 µs interrupt latency for cylinder-specific actuation. Use Value: Integrated MSCAN and 10-bit ADC eliminate need for external transceivers and signal conditioners, reducing BOM count by 3 components per ECU. |
Use Scenario: Centralized management of power windows, lighting, door locks, and HVAC fan speed in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and CAN gateway; handles wake-up events from key fob RF receiver and ignition switch. Use Value: LQFP-64 footprint and AEC-Q100 Grade 1 rating allow direct drop-in replacement of legacy S12X parts without board redesign. |
| Transmission Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Interface |
Use Scenario: Gear selection logic, clutch pressure modulation, and torque converter lock-up control using transmission fluid temperature and turbine speed inputs. IC Role / Device Role / Timing Role: Safety-relevant controller with dual-core lockstep not present, but leverages Flash ECC and watchdog COP to meet ISO 26262 ASIL-B requirements. Use Value: 25 MHz CPU clock and 8 KB SRAM enable execution of PID loops at 1 kHz while buffering CAN diagnostics messages for off-board retrieval. |
Use Scenario: Aggregation and preprocessing of analog signals from radar front-end ICs, ultrasonic parking sensors, and ambient light detectors. IC Role / Device Role / Timing Role: Signal conditioning hub performing gain scaling, offset compensation, and timestamping before forwarding to main ADAS SoC via CAN FD. Use Value: Simultaneous sampling across 8 ADC channels with hardware-triggered start ensures phase-coherent acquisition of multi-sensor data streams. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S12G128F0VLF | LQFP-48 package, same Flash/SRAM/peripherals but fewer I/O (34 vs. 52 GPIO), no CANH/CANL pins routed - requires PCB redesign. | Targeted at space-constrained modules where CAN is handled externally or omitted (e.g., simple seat control). | Select when board area is critical and CAN functionality is delegated to a companion transceiver IC. |
| MC9S12G128MALR | Same LQFP-64 package and feature set, but rated for -40°C to +105°C (AEC-Q100 Grade 2) - lower thermal margin than S9S12G128F0MLFR. | Suitable for cabin-mounted modules (e.g., infotainment sub-modules) where ambient temperature remains below 105°C. | Choose for cost-sensitive interior applications where full Grade 1 thermal range is unnecessary. |
Compared with S9S12G128F0VLF and MC9S12G128MALR, the S9S12G128F0MLFR uniquely delivers AEC-Q100 Grade 1 qualification in LQFP-64 with full CAN PHY routing - making it the only option among the three for under-hood deployment without thermal derating or external transceiver dependency.
Availability
S9S12G128F0MLFR is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control units requiring stable component supply across extended automotive production lifecycles.
Supply support for S9S12G128F0MLFR 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 markets, with deep expertise in ASIL-certified microcontrollers and radar processing.
The MC9S12G family - including the S9S12G128F0MLFR - was designed specifically for cost-optimized, high-reliability automotive body and powertrain applications requiring AEC-Q100 qualification and CAN integration.
FAQ
What is the maximum operating frequency of the S9S12G128F0MLFR?
The S9S12G128F0MLFR operates at a maximum core frequency of 25 MHz, achieved via its internal Phase-Locked Loop (IPLL) which multiplies the input crystal or RC oscillator frequency. This frequency is fully supported across the -40°C to +125°C temperature range and is validated for CAN bit timing accuracy up to 1 Mbps in accordance with ISO 11898-1. The S9S12G128F0MLFR's timing budget accommodates worst-case instruction execution for real-time control loops in engine management systems.
Does the S9S12G128F0MLFR include an integrated CAN transceiver?
Yes, the S9S12G128F0MLFR integrates the MSCAN module with a physical layer driver stage accessible via dedicated CANH and CANL pins. It complies with ISO 11898-2 and supports common-mode voltage ranges from -2 V to +7 V. External termination (120 Ω) and common-mode choke are still required per automotive EMC standards, but no discrete transceiver IC is needed - reducing system-level component count and PCB area for the S9S12G128F0MLFR design.
Is the S9S12G128F0MLFR qualified to AEC-Q100 standards?
Yes, the S9S12G128F0MLFR is qualified to AEC-Q100 Grade 1, meaning it is certified for operation from -40°C to +125°C ambient temperature with full electrical testing across that range. This qualification covers HTOL, TC, UHAST, and ESD testing per AEC-Q100 Rev-H, and is documented in NXP's official qualification reports. The S9S12G128F0MLFR is approved for use in engine bay and transmission control applications where thermal stress is highest.
How much user-accessible Flash and RAM does the S9S12G128F0MLFR provide?
The S9S12G128F0MLFR provides 128 KB of on-chip Flash memory with built-in ECC protection and 8 KB of SRAM. Of the Flash, approximately 124 KB is available for application code and constants after reserving space for bootloader, security keys, and configuration data. The full 8 KB SRAM is user-accessible for stack, heap, and peripheral buffers - sufficient for CAN message queues, ADC result arrays, and real-time control state variables in the S9S12G128F0MLFR implementation.
What debug interface does the S9S12G128F0MLFR support?
The S9S12G128F0MLFR supports the Background Debug Module (BDM) interface using a single-wire serial protocol over the BKGD pin. This allows non-intrusive debugging, flash programming, and real-time register inspection without requiring JTAG pins or halting peripheral operation. The BDM interface is compatible with standard NXP Multilink and PE Micro debug probes, and is fully supported in S32DS and CodeWarrior IDEs for the S9S12G128F0MLFR development workflow.
S9S12G128F0MLFR 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12G128F0MLFR FAQ
1.How can I place an order for S9S12G128F0MLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12G128F0MLFR 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 S9S12G128F0MLFR reliable?
The price and inventory of S9S12G128F0MLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12G128F0MLFR is usually 5 days.
3.What payment methods are accepted for S9S12G128F0MLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12G128F0MLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12G128F0MLFR?
S9S12G128F0MLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12G128F0MLFR 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 S9S12G128F0MLFR?
For technical support, including S9S12G128F0MLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12G128F0MLFR requirements.
6.How does Aetrix verify that S9S12G128F0MLFR is sourced from the original manufacturer or authorized distributors?
All S9S12G128F0MLFR 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 S9S12G128F0MLFR meets industry standards.
7.What is the process for return or replacement of S9S12G128F0MLFR?
All S9S12G128F0MLFR units undergo pre-shipment inspection (PSI). If there is an issue with S9S12G128F0MLFR, 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 S9S12G128F0MLFR part is unused and in its original packaging.
Return procedure for S9S12G128F0MLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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