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NXP Semiconductors S9S12GNA32F0WLF
- Part No.:
- S9S12GNA32F0WLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12GNA32F0WLF.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,766
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Product details
Overview
S9S12GNA32F0WLF from NXP Semiconductors is a 16-bit automotive-grade microcontroller in the S12G family, featuring 32 KB on-chip Flash with ECC, 2 KB SRAM, and integrated CAN 2.0B controller. It operates at up to 25 MHz, supports -40°C to +125°C ambient temperature (Grade 0), and includes 10-bit ADC (8-channel), PWM, SCI, SPI, and BDM debug interface. It is used in engine control units, body electronics modules, and transmission control systems requiring AEC-Q100 compliance.
For engineers reviewing the S9S12GNA32F0WLF datasheet, S9S12GNA32F0WLF pinout, S9S12GNA32F0WLF application, or S9S12GNA32F0WLF equivalent, key selection criteria include AEC-Q100 Grade 0 qualification, 32 KB Flash with ECC, CAN 2.0B support, 10-bit ADC resolution, and 48-pin LQFP package compatibility for automotive ECU designs.
Technical Context
The S9S12GNA32F0WLF implements the S12 CPU12 core with 16-bit data path and von Neumann architecture, supporting byte- and word-aligned memory access. Its clock system integrates an internal RC oscillator (1–8 MHz), external crystal input (1–32 MHz), and IPLL for stable high-frequency operation up to 25 MHz.
It features a modular peripheral set including TIM16B8CV3 timer with 8-channel capture/compare, S12MSCANV3 CAN controller with message buffering and error handling, and ADC10B8CV2 with 8 external inputs and configurable sample-and-hold timing - all accessible via the S12GPIMV1 port integration module for flexible pin mapping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 CPU12 16-bit CISC core with 16 MB linear address space and 25 MHz max bus frequency |
| Memory | 32 KB on-chip Flash (ECC-protected), 2 KB SRAM, 512 B EEPROM (emulated) |
| ADC | 10-bit resolution, 8-channel SAR ADC (ADC10B8CV2) with 12 µs conversion time and software/hardware trigger support |
| CAN Interface | Scalable Controller Area Network (S12MSCANV3) compliant with ISO 11898-1, supporting CAN 2.0B protocol with 16 message buffers |
| Operating Temperature | -40°C to +125°C (AEC-Q100 Grade 0), validated for under-hood automotive environments |
| Package | 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 |
| Supply Voltage | 4.5 V to 5.5 V single supply; integrated voltage regulator (VREG) provides internal 2.5 V and 5 V rails |
Pinout & Package
48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions follow S12GNA32 variant mapping per MC9S12G Family Reference Manual Rev. 1.28, Appendix D and Section 1.8.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power Supply | Separate digital (VDD), analog (VDDA), and external oscillator (VDDX) supplies reduce noise coupling into ADC and clock circuits |
| VSS, VSSA, VSSX | Ground | Dedicated digital ground (VSS), analog ground (VSSA), and oscillator ground (VSSX) enable clean signal referencing |
| XTAL, EXTAL | Crystal Oscillator Input/Output | Supports fundamental-mode quartz crystals up to 32 MHz; enables precise timing for CAN bit rate and ADC sampling |
| RESET | Active-low Reset Input | Asynchronous reset with internal pull-up; compatible with external watchdog or power-on reset ICs |
| PORTA[7:0] | General-purpose I/O / Peripheral Multiplex | Configurable as GPIO, CAN TX/RX, SCI0, SPI0, or PWM outputs via PIM routing; supports interrupt-on-change |
| PORTB[7:0] | General-purpose I/O / Peripheral Multiplex | Includes BKGD pin for BDM debug interface; supports ADC external trigger (ETRIG0), timer inputs, and PWM outputs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 0 qualification | Validated for continuous operation at 125°C ambient, enabling placement in high-temperature engine compartments |
| On-chip Flash with ECC | Single-bit error correction and double-bit error detection ensure reliable program storage in electrically noisy automotive environments |
| Integrated CAN 2.0B controller | Hardware message filtering, automatic retransmission, and error confinement eliminate need for external CAN transceiver logic |
| Background Debug Module (BDM) | Single-wire debug interface using BKGD pin enables full-speed debugging, flash programming, and real-time register inspection without halting CPU |
| Configurable ADC reference | Internal 2.5 V reference or external VRH/VRL inputs allow flexible scaling for sensor signal conditioning across varying supply conditions |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
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 ignition timing algorithms with deterministic 25 MHz bus timing. Use Value: Integrated 10-bit ADC and CAN 2.0B enable direct sensor interfacing and vehicle network communication without external signal conditioning or protocol translation. |
Use Scenario: Centralized management of door locks, window lifts, lighting, and HVAC controls in modern passenger vehicles. IC Role / Device Role / Timing Role: System controller coordinating multiple LIN/CAN sub-nodes and managing power sequencing for low-quiescent-current operation. Use Value: AEC-Q100 Grade 0 rating and 2 KB SRAM support robust multi-tasking and fail-safe state retention during battery voltage dips. |
| Transmission Control Module (TCM) | Electric Power Steering (EPS) Assist Controller |
Use Scenario: Closed-loop control of solenoid valves and clutch pressure in 6-speed automatic transmissions. IC Role / Device Role / Timing Role: Safety-critical controller executing ASIL-B–level torque management logic with hardware CRC and memory protection. Use Value: ECC-protected Flash and BDM debug capability simplify functional safety validation and field firmware updates. |
Use Scenario: Torque assist calculation and motor phase current regulation in brushless DC steering motors. IC Role / Device Role / Timing Role: Real-time motor controller interfacing with Hall-effect sensors and driving 3-phase gate drivers via PWM outputs. Use Value: TIM16B8CV3 timer with dead-time insertion and ADC10B8CV2 synchronized sampling ensure precise current loop execution at ≤100 µs intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S12GNA64F0WLF | 64 KB Flash, same 48-pin LQFP package, identical peripheral set and AEC-Q100 Grade 0 rating | Supports larger firmware images for OTA-capable ECUs or complex diagnostic stacks | Select when future firmware growth or ASAM-compliant diagnostics require >32 KB code space |
| MC9S12G32F0WLF | Same 32 KB Flash and Grade 0 spec but older mask set (non-GNA series); lacks some errata fixes and updated BDM firmware | Legacy design reuse where qualification documentation traceability to GNA revision is not required | Prefer S9S12GNA32F0WLF for new designs due to enhanced reliability and documented production stability |
Compared with S9S12GNA32F0WLF, the S9S12GNA64F0WLF offers scalable code density without layout change, while the MC9S12G32F0WLF represents a legacy variant with identical footprint but unverified long-term supply and limited errata coverage.
Availability
S9S12GNA32F0WLF is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control systems requiring stable component supply, AEC-Q100 compliance, and long-lifecycle automotive support.
Supply support for S9S12GNA32F0WLF 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 headquarters in Eindhoven, Netherlands.
The S9S12GNA32F0WLF belongs to the MC9S12G family - a line of cost-optimized, AEC-Q100–qualified 16-bit microcontrollers designed specifically for entry-level automotive powertrain and chassis control applications.
FAQ
What is the maximum operating frequency of the S9S12GNA32F0WLF?
The S9S12GNA32F0WLF supports a maximum bus frequency of 25 MHz, achieved via its internal Phase-Locked Loop (IPLL) when driven by an external crystal or internal RC oscillator. This frequency enables deterministic real-time execution of automotive control loops such as fuel injection timing and CAN message scheduling. The S9S12GNA32F0WLF maintains timing integrity across its full -40°C to +125°C operating range.
Does the S9S12GNA32F0WLF include hardware support for CAN FD?
No, the S9S12GNA32F0WLF integrates the S12MSCANV3 module, which implements classical CAN 2.0B (ISO 11898-1) only - it does not support CAN FD data rates or extended frame formats. For CAN FD requirements, designers must select newer NXP families such as S32K1 or S32K3. The S9S12GNA32F0WLF remains fully compatible with legacy CAN networks in production vehicles.
Is the S9S12GNA32F0WLF pin-compatible with other S12GNA variants?
Yes, the S9S12GNA32F0WLF shares identical 48-pin LQFP packaging and pinout with S9S12GNA64F0WLF and S9S12GNA16F0WLF, enabling hardware reuse across Flash size variants. All S12GNA devices use the same S12GPIMV1 port integration module for consistent peripheral routing, simplifying PCB design and migration paths within the family.
What debug interface does the S9S12GNA32F0WLF support?
The S9S12GNA32F0WLF includes the Background Debug Module (BDM) interface, accessed via the BKGD pin, supporting single-wire serial communication for flash programming, register read/write, and real-time breakpoint debugging. It requires no dedicated JTAG pins and is compatible with standard NXP BDM tools like the Multilink Universal FX and S32DS IDE debug probes.
How is Flash memory protected against corruption in the S9S12GNA32F0WLF?
The S9S12GNA32F0WLF implements ECC (Error-Correcting Code) on its 32 KB on-chip Flash memory, providing single-bit error correction and double-bit error detection. This protection is active during both read and write operations and is essential for maintaining firmware integrity in electrically noisy automotive environments where radiation-induced bit flips may occur.
S9S12GNA32F0WLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 12V1
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- IrDA, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 40
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1K x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.13V ~ 5.5V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 150°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12GNA32F0WLF FAQ
1.How can I place an order for S9S12GNA32F0WLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12GNA32F0WLF 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 S9S12GNA32F0WLF reliable?
The price and inventory of S9S12GNA32F0WLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12GNA32F0WLF is usually 5 days.
3.What payment methods are accepted for S9S12GNA32F0WLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12GNA32F0WLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12GNA32F0WLF?
S9S12GNA32F0WLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12GNA32F0WLF 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 S9S12GNA32F0WLF?
For technical support, including S9S12GNA32F0WLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12GNA32F0WLF requirements.
6.How does Aetrix verify that S9S12GNA32F0WLF is sourced from the original manufacturer or authorized distributors?
All S9S12GNA32F0WLF 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 S9S12GNA32F0WLF meets industry standards.
7.What is the process for return or replacement of S9S12GNA32F0WLF?
All S9S12GNA32F0WLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S12GNA32F0WLF, 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 S9S12GNA32F0WLF part is unused and in its original packaging.
Return procedure for S9S12GNA32F0WLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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