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NXP Semiconductors S9S12G48F1MLCR
- Part No.:
- S9S12G48F1MLCR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 32-LQFP
- Datasheet:
-
S9S12G48F1MLCR.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,404
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Product details
Overview
S9S12G48F1MLCR from NXP Semiconductors is a 16-bit automotive-grade microcontroller based on the S12 CPU12 core, featuring 48 KB on-chip Flash with ECC, 4 KB SRAM, and integrated CAN 2.0A/B controller. It operates at up to 25 MHz bus frequency, supports -40°C to 125°C ambient temperature, and includes 10-bit ADC (8-channel), 8-bit DAC, PWM, SCI, SPI, and BDM debug interface. It is used in engine control units, body electronics modules, and transmission control systems requiring ASIL-B capable MCU functionality.
For engineers reviewing the S9S12G48F1MLCR datasheet, S9S12G48F1MLCR pinout, S9S12G48F1MLCR application, or S9S12G48F1MLCR equivalent, key selection criteria include Flash ECC support, CAN protocol compliance, AEC-Q100 Grade 1 qualification, and compatibility with legacy S12G toolchains and peripheral drivers.
Technical Context
The S9S12G48F1MLCR implements the CPU12 instruction set with 16-bit data path and 24-bit address space, executing instructions in single-cycle for most operations. Its memory subsystem integrates Flash with error correction code (ECC) for single-bit error correction and double-bit error detection, plus SRAM with parity checking.
System clocking uses a multi-source architecture: external crystal (1–8 MHz), internal RC oscillator (1 MHz nominal), and PLL-based IPLL generating up to 50 MHz core clock. The device supports six power modes including WAIT, STOP, and Pseudo-STOP, with wake-up via CAN, SCI, or GPIO interrupts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPU12 16-bit CISC core with 24-bit addressing; enables deterministic real-time control in safety-critical automotive firmware. |
| Flash Memory | 48 KB on-chip Flash with ECC; provides fault-tolerant program storage meeting ISO 26262 ASIL-B requirements. |
| RAM | 4 KB SRAM with parity; supports runtime data integrity checking for critical variables and stack protection. |
| ADC | 10-bit SAR ADC with 8 input channels and configurable sample-and-hold; delivers 100 kSPS conversion rate for sensor signal acquisition. |
| CAN Interface | Scalable CAN (MSCAN) module compliant with ISO 11898-1:2003; supports CAN 2.0A/B frames and hardware message filtering. |
| Operating Temperature | -40°C to +125°C ambient; qualified per AEC-Q100 Grade 1 for under-hood automotive applications. |
| Supply Voltage | 4.5 V to 5.5 V VDD; compatible with standard 5 V automotive power rails and robust against battery transients. |
Pinout & Package
LQFP-64 package (10 mm × 10 mm, 0.5 mm pitch) with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply inputs | Dedicated digital, analog, and XOSC supply pins ensure noise isolation between logic, ADC reference, and oscillator circuits. |
| VSS, VSSA, VSSX | Ground returns | Separate ground planes minimize coupling of digital switching noise into analog and clock domains. |
| XTAL, EXTAL | Crystal oscillator terminals | Supports fundamental-mode quartz crystals (1–8 MHz); enables precise timing for CAN bit rate and ADC sampling clocks. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts external watchdog or power-on reset signals. |
| PORTA[7:0] | General-purpose I/O with interrupt capability | Configurable as GPIO, ADC inputs, or CAN TX/RX; supports edge-triggered wake-up from low-power modes. |
| PORTB[7:0] | General-purpose I/O with PWM/SCI/SPI functions | Shared with PWM outputs, SCI transmit/receive, and SPI MOSI/MISO; enables flexible peripheral multiplexing. |
| PORTC[7:0] | General-purpose I/O with CAN and ADC functions | Includes CAN TX/RX, ADC channel inputs, and background debug (BKGD); supports dual-role pin assignment. |
| BKGD | Background debug serial interface | Single-wire BDM interface for flash programming and real-time debugging without halting CPU execution. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | Enables ASIL-B compliance by detecting and correcting single-bit errors during program execution and flash writes. |
| Integrated MSCAN Module | Hardware-accelerated CAN 2.0A/B messaging with 16-message object buffers and automatic retransmission. |
| 10-bit ADC with 8 Channels | Supports simultaneous sampling of multiple sensors (e.g., throttle position, coolant temp, O2) with programmable conversion triggers. |
| Background Debug (BDM) | Allows non-intrusive flash programming, breakpoint setting, and register inspection using only BKGD and RESET pins. |
| AEC-Q100 Grade 1 Qualification | Validated for operation across -40°C to +125°C ambient, ensuring reliability in engine bay and transmission control environments. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time monitoring and actuation of fuel injection timing, ignition spark advance, and idle speed control using analog sensor inputs and PWM-driven solenoids. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms with sub-millisecond response latency and CAN-based diagnostic communication. Use Value: Integrated 10-bit ADC, PWM timers, and CAN controller reduce external component count while meeting ISO 14229 UDS diagnostic protocol timing constraints. |
Use Scenario: Centralized management of door locks, window lifts, lighting sequences, and HVAC fan speed in passenger compartment electronics. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and relays via GPIO/PWM, communicating status over CAN backbone. Use Value: 48 KB Flash accommodates multi-feature firmware with OTA update capability; SRAM parity ensures data integrity during power cycling. |
| Transmission Control Unit (TCU) | Electric Power Steering (EPS) Assist Controller |
Use Scenario: Gear shift scheduling, clutch pressure modulation, and torque converter lockup control using vehicle speed, throttle, and turbine RPM inputs. IC Role / Device Role / Timing Role: Safety-relevant controller implementing ASIL-B logic with redundant sensor processing and fail-safe output drivers. Use Value: Flash ECC and SRAM parity provide hardware-level fault containment required for ISO 26262 compliance in transmission control software. |
Use Scenario: Torque assist calculation and motor current regulation based on steering angle, torque sensor, and vehicle speed signals. IC Role / Device Role / Timing Role: Real-time motor control MCU with synchronized ADC sampling and PWM generation for three-phase inverter gate drivers. Use Value: 25 MHz bus clock enables 100 ns timer resolution for precise PWM dead-time insertion and phase current sensing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S12G48F0MLCR | Same 48 KB Flash, but lacks internal voltage regulator (VREG); requires external 5 V supply instead of internal 5 V generation from 12 V battery rail. | Not suitable for direct replacement where internal VREG is used for system power domain partitioning. | Select S9S12G48F1MLCR when internal 5 V regulator is needed to simplify power design and reduce external components. |
| S9S12G64F1MLCR | 64 KB Flash and identical peripheral set; same package, pinout, and electrical specs; differs only in Flash capacity and part marking. | Applicable where larger firmware footprint (e.g., bootloader + application + diagnostics) exceeds 48 KB limit. | Choose S9S12G64F1MLCR if future firmware expansion or dual-bank OTA updates require >48 KB program memory. |
Compared with S9S12G48F0MLCR, the S9S12G48F1MLCR adds integrated voltage regulation for simplified power architecture; compared with S9S12G64F1MLCR, it offers cost-optimized Flash sizing for mature applications with stable firmware footprints.
Availability
S9S12G48F1MLCR is available at Aetrix Electronics and suitable for engine control units, body electronics modules, and transmission control systems requiring stable component supply across extended automotive production lifecycles.
Supply support for S9S12G48F1MLCR 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 S9S12G48F1MLCR belongs to NXP's legacy S12G family-designed specifically for cost-sensitive, high-reliability automotive applications where long-term availability, AEC-Q100 qualification, and toolchain maturity are critical.
FAQ
What is the maximum bus frequency supported by the S9S12G48F1MLCR?
The S9S12G48F1MLCR supports a maximum bus frequency of 25 MHz, achieved via its internal Phase-Locked Loop (IPLL) operating from an external 4–8 MHz crystal or internal RC oscillator. This frequency enables deterministic execution of time-critical control loops in automotive applications such as engine timing and PWM motor control, with cycle-accurate timing guarantees for all CPU12 instructions.
Does the S9S12G48F1MLCR include built-in Flash error correction?
Yes, the S9S12G48F1MLCR includes on-chip Flash memory with Error Correction Code (ECC) that detects and corrects single-bit errors and detects double-bit errors during read and write operations. This feature is essential for meeting ISO 26262 ASIL-B functional safety requirements and is implemented in hardware without software overhead or performance penalty.
Is the S9S12G48F1MLCR pin-compatible with other S12G family members?
The S9S12G48F1MLCR in LQFP-64 package shares identical pinout with S9S12G48F0MLCR, S9S12G64F1MLCR, and S9S12G64F0MLCR. All share the same signal mapping, power/ground pin locations, and debug interface (BKGD/RESET), enabling PCB reuse across Flash size variants within the same package option.
What automotive qualification does the S9S12G48F1MLCR meet?
The S9S12G48F1MLCR is qualified to AEC-Q100 Grade 1, specifying reliable operation from -40°C to +125°C ambient temperature. It also meets ISO/TS 16949 manufacturing standards and includes design features-such as Flash ECC, SRAM parity, and watchdog timer-that support ASIL-B compliance per ISO 26262 for automotive safety-related systems.
Can the S9S12G48F1MLCR be programmed and debugged in-system?
Yes, the S9S12G48F1MLCR supports in-system programming and real-time debugging via its Background Debug Mode (BDM) interface using only two pins: BKGD and RESET. This allows full flash erase/write, register inspection, and breakpoint execution without removing the device from the target board or halting system operation.
S9S12G48F1MLCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 32-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:
- 26
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 1.5K x 8
- RAM Size:
- 4K 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:
S9S12G48F1MLCR FAQ
1.How can I place an order for S9S12G48F1MLCR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12G48F1MLCR 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 S9S12G48F1MLCR reliable?
The price and inventory of S9S12G48F1MLCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12G48F1MLCR is usually 5 days.
3.What payment methods are accepted for S9S12G48F1MLCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12G48F1MLCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12G48F1MLCR?
S9S12G48F1MLCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12G48F1MLCR 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 S9S12G48F1MLCR?
For technical support, including S9S12G48F1MLCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12G48F1MLCR requirements.
6.How does Aetrix verify that S9S12G48F1MLCR is sourced from the original manufacturer or authorized distributors?
All S9S12G48F1MLCR 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 S9S12G48F1MLCR meets industry standards.
7.What is the process for return or replacement of S9S12G48F1MLCR?
All S9S12G48F1MLCR units undergo pre-shipment inspection (PSI). If there is an issue with S9S12G48F1MLCR, 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 S9S12G48F1MLCR part is unused and in its original packaging.
Return procedure for S9S12G48F1MLCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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