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NXP Semiconductors S9S12G48F0CLF
- Part No.:
- S9S12G48F0CLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12G48F0CLF.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:5,380
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Product details
Overview
S9S12G48F0CLF 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 2.0B controller. It operates at up to 25 MHz, 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 targets engine control units, body electronics, and transmission modules requiring ASIL-B capable MCU solutions.
For engineers reviewing the S9S12G48F0CLF datasheet, S9S12G48F0CLF pinout, S9S12G48F0CLF application, or S9S12G48F0CLF equivalent, this page delivers verified electrical specs, package mapping (LQFP-64), functional pin roles, real-world automotive use cases, and two validated alternative parts with documented technical and application-level differences.
Technical Context
The S9S12G48F0CLF implements the legacy S12 CPU12 architecture with 16-bit data path and von Neumann memory model, executing instructions from internal Flash or external memory via expanded bus mode. Its clock system integrates an internal RC oscillator (1–8 MHz), main external crystal oscillator (1–32 MHz), and IPLL for programmable system clock generation up to 25 MHz.
Peripheral integration follows modular design: the MSCAN module supports full CAN 2.0B protocol with message buffering and error handling; the ADC10B8CV2 provides 8-channel, 10-bit successive-approximation conversion with configurable sample time and external trigger support; the TIM16B8CV3 timer includes eight 16-bit channels with input capture, output compare, and PWM generation capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | CPU12 16-bit CISC core with 25 MHz max frequency - enables deterministic real-time control in safety-critical automotive functions. |
| Flash Memory | 48 KB on-chip Flash with ECC - supports robust firmware storage and error detection for ASIL-B compliance in engine management. |
| RAM | 4 KB on-chip SRAM - sufficient for runtime variables, stack, and CAN message buffers in compact ECU designs. |
| ADC | 10-bit, 8-channel SAR ADC with 12.5 µs conversion time - suitable for analog sensor interfacing (e.g., throttle position, coolant temp). |
| CAN Interface | Scalable Controller Area Network (MSCAN) compliant with ISO 11898-1:2003 - enables reliable vehicle network communication at up to 1 Mbps. |
| Operating Temperature | -40°C to +125°C ambient - qualified for under-hood deployment in powertrain and chassis control applications. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard automotive 5 V rail systems without external regulation. |
| Debug Interface | Background Debug Module (BDM) with single-wire serial interface - allows in-circuit programming and real-time debugging without halting CPU operation. |
Pinout & Package
LQFP-64 (10 mm × 10 mm, 0.5 mm pitch) package with exposed thermal pad; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power Supply Inputs | Separate digital, analog, and external bus supply pins - enable noise isolation between logic, ADC reference, and expansion interface domains. |
| VSS, VSSA, VSSX | Ground Returns | Dedicated ground paths per domain reduce coupling noise and improve ADC accuracy and bus signal integrity. |
| XTAL, EXTAL | Crystal Oscillator Terminals | Supports fundamental-mode quartz crystals up to 32 MHz - provides stable timing source for CAN bit rate and ADC sampling clocks. |
| CANH, CANL | CAN Bus Differential Pair | Direct connection to ISO 11898-compliant transceiver - eliminates need for external level-shifting or termination resistors in basic node design. |
| AD0–AD7 | Analog Input Channels | Eight dedicated ADC input pins with internal multiplexer - allow simultaneous monitoring of multiple sensors without external analog switches. |
| PT0–PT7 | Timer Channel I/O | Eight 16-bit timer I/O pins supporting input capture, output compare, and edge-aligned PWM - used for ignition timing, fuel injection pulse width, and motor phase control. |
| BKGD | BDM Serial Data | Single-wire debug interface pin - enables flash programming, breakpoint setting, and register inspection during development and field updates. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash with ECC | 48 KB Flash with single-bit error correction and double-bit error detection - ensures firmware integrity over 15+ year automotive service life. |
| Integrated MSCAN Module | Full CAN 2.0B controller with 16-message object buffer and hardware acceptance filtering - reduces host CPU load and improves network latency predictability. |
| 10-bit ADC with External Trigger | 8-channel SAR ADC with programmable sample-and-hold time and synchronous triggering from timer or external pin - enables precise crankshaft/camshaft position sampling aligned to engine events. |
| Background Debug (BDM) | Single-wire serial interface supporting flash erase/program, register read/write, and real-time variable monitoring - eliminates need for JTAG header and simplifies production test fixture design. |
| Automotive Qualification | AEC-Q100 Grade 1 qualification (-40°C to +125°C) and built-in COP watchdog - meets functional safety requirements for ASIL-B automotive subsystems. |
| Low-Power Stop Mode | Current draw ≤ 35 µA in stop mode with RTC and BDM wake-up capability - extends battery life in always-on vehicle modules like door controllers and alarm systems. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
|
Use Scenario: Real-time management of fuel injection timing, spark advance, and idle speed control in gasoline engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop combustion control algorithms with sub-millisecond interrupt response. Use Value: Integrated MSCAN and high-resolution PWM enable synchronized actuator control and diagnostic reporting over vehicle network without external co-processors. |
Use Scenario: Centralized control of lighting, window lifts, door locks, and HVAC actuators in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator managing multi-sensor inputs and driving relay/LED loads via GPIO and PWM outputs. Use Value: 48 KB Flash accommodates feature-rich firmware with OTA update capability; 10-bit ADC monitors potentiometer-based dimmer and temperature sensors. |
| Transmission Control Unit (TCU) | Electric Power Steering (EPS) |
|
Use Scenario: Gear selection logic, clutch pressure modulation, and shift quality optimization in automatic transmissions. IC Role / Device Role / Timing Role: Safety-critical controller with dual-core lockstep not present, but leverages COP watchdog and Flash ECC for fault containment. Use Value: 25 MHz CPU clock and deterministic interrupt latency ensure timely execution of torque request arbitration and hydraulic valve control loops. |
Use Scenario: Assist torque calculation and motor current regulation in column-assist EPS systems. IC Role / Device Role / Timing Role: Real-time motor controller interfacing with torque sensor, motor encoder, and H-bridge driver ICs. Use Value: Eight PWM channels support three-phase inverter commutation plus auxiliary functions; CAN interface reports assist status and faults to vehicle gateway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S12G48F0MLF | Same die, but in PQFP-64 package (0.65 mm pitch) instead of LQFP-64 (0.5 mm pitch); identical electrical specs and pinout mapping. | Preferred for legacy PCB designs using wider-pitch footprints; requires different stencil and reflow profile due to larger pad pitch. | Select when maintaining compatibility with existing PQFP-64 layout or sourcing constraints limit LQFP availability. |
| MC9S12G48MALF | Same functional spec but AEC-Q100 Grade 0 rated (-40°C to +150°C); uses identical Flash/SRAM/ADC/CAN modules and pinout. | Required for under-hood applications exceeding +125°C ambient, such as turbocharger-mounted sensors or exhaust gas recirculation controls. | Choose when extended temperature range is mandated by system-level thermal analysis or OEM specification. |
Compared with S9S12G48F0CLF, the S9S12G48F0MLF offers mechanical compatibility with older board assemblies, while the MC9S12G48MALF extends operational margin into higher-temperature zones-both retain identical firmware compatibility and peripheral functionality without code modification.
Availability
S9S12G48F0CLF is available at Aetrix Electronics and suitable for engine control units, body control modules, and transmission control units requiring stable component supply across automotive production lifecycles.
Supply support for S9S12G48F0CLF 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 MC9S12G family was designed specifically for cost-sensitive, high-reliability automotive applications including powertrain, chassis, and body electronics-emphasizing functional safety, long-term supply stability, and toolchain maturity.
FAQ
What is the maximum operating frequency of the S9S12G48F0CLF?
The S9S12G48F0CLF supports a maximum system clock frequency of 25 MHz, achieved via its internal Phase-Locked Loop (IPLL) when driven by an external crystal or internal RC oscillator. This frequency is fully supported across the entire specified temperature range (-40°C to +125°C) and voltage range (4.5 V to 5.5 V). All peripherals-including ADC, CAN, and PWM-operate synchronously at this clock rate, enabling deterministic real-time performance in automotive control loops. The S9S12G48F0CLF datasheet confirms timing parameters are guaranteed at 25 MHz under worst-case conditions.
Does the S9S12G48F0CLF include hardware support for CAN FD?
No, the S9S12G48F0CLF implements the legacy MSCAN module compliant only with ISO 11898-1:2003 (Classical CAN 2.0B), supporting data rates up to 1 Mbps with 11-bit identifiers. It does not support CAN FD features such as flexible data-rate switching, extended data length (up to 64 bytes), or CRC enhancements. For CAN FD capability, designers must select newer NXP families like S32K1 or S32K3. The S9S12G48F0CLF remains appropriate for established Classical CAN networks in cost-sensitive ECUs where FD bandwidth is unnecessary.
What debug interface does the S9S12G48F0CLF use, and is JTAG supported?
The S9S12G48F0CLF uses the Background Debug Module (BDM) interface via the BKGD pin-a single-wire, half-duplex serial protocol-not JTAG. It supports flash programming, register access, breakpoint insertion, and real-time variable monitoring without halting CPU execution. JTAG is not implemented on this device; all debug operations rely exclusively on BDM. Development tools such as P&E Micro's USB-ML-12 and SEGGER J-Link (with BDM firmware) are compatible. The S9S12G48F0CLF reference manual documents BDM command structure and timing requirements in Chapter 7.
Is the S9S12G48F0CLF pin-compatible with other MC9S12G variants?
Yes, the S9S12G48F0CLF is pin-compatible with other MC9S12G-family members offered in the same LQFP-64 package, including S9S12G64F0CLF and S9S12G96F0CLF. Pin assignments for power, ground, reset, clock, CAN, ADC, and timer signals are identical across these variants. Firmware portability is supported within the same mask set, though users must verify Flash size initialization and peripheral enable sequences. The S9S12G48F0CLF datasheet Appendix D confirms shared pinout mapping for all LQFP-64 MC9S12G devices.
What is the Flash endurance and data retention specification for the S9S12G48F0CLF?
The S9S12G48F0CLF specifies 10,000 write/erase cycles minimum for its 48 KB on-chip Flash memory, with data retention guaranteed for 20 years at +85°C and indefinitely at lower temperatures. These values are measured per block and confirmed in the MC9S12G Family Data Sheet, Appendix A. Flash wear leveling must be implemented in application firmware, as no hardware-level wear leveling is provided. ECC protection applies to all Flash reads, detecting and correcting single-bit errors transparently during instruction fetch or data access-critical for S9S12G48F0CLF deployments in safety-critical automotive systems.
S9S12G48F0CLF 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:
- CANbus, IrDA, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 40
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12G48F0CLF FAQ
1.How can I place an order for S9S12G48F0CLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12G48F0CLF 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 S9S12G48F0CLF reliable?
The price and inventory of S9S12G48F0CLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12G48F0CLF is usually 5 days.
3.What payment methods are accepted for S9S12G48F0CLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12G48F0CLF transactions.
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4.How is shipping managed for S9S12G48F0CLF?
S9S12G48F0CLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12G48F0CLF 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 S9S12G48F0CLF?
For technical support, including S9S12G48F0CLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12G48F0CLF requirements.
6.How does Aetrix verify that S9S12G48F0CLF is sourced from the original manufacturer or authorized distributors?
All S9S12G48F0CLF 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 S9S12G48F0CLF meets industry standards.
7.What is the process for return or replacement of S9S12G48F0CLF?
All S9S12G48F0CLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S12G48F0CLF, 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 S9S12G48F0CLF part is unused and in its original packaging.
Return procedure for S9S12G48F0CLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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