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NXP Semiconductors S9S12G128AMLFR
- Part No.:
- S9S12G128AMLFR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12G128AMLFR.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,484
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Product details
Overview
S9S12G128AMLFR from NXP Semiconductors (formerly Freescale) is a 16-bit automotive-grade microcontroller featuring 128 KB on-chip Flash with ECC, 8 KB SRAM, and integrated CAN 2.0B controller. It operates at up to 25 MHz core frequency, supports -40°C to 125°C ambient temperature, and includes 12-bit ADC (8-channel), 8-bit DAC, PWM, and BDM debug interface. It targets engine control units and body electronics requiring functional safety compliance.
For engineers reviewing the S9S12G128AMLFR datasheet, S9S12G128AMLFR pinout, S9S12G128AMLFR application, or S9S12G128AMLFR equivalent, this page delivers verified electrical specs, validated package mapping (LQFP-64), confirmed peripheral integration (MSCAN, ADC12B8CV2, TIM16B8CV3), and real-world automotive use cases - all extracted from Freescale MC9S12G Family Reference Manual Rev. 1.25 and official ordering data.
Technical Context
The S9S12G128AMLFR implements the S12 CPU12 core with 16-bit data path and 24-bit address bus, executing instructions in single-cycle or multi-cycle modes depending on addressing. Its memory subsystem includes 128 KB Flash organized as 64 × 2 KB blocks with ECC protection, 8 KB SRAM, and 1 KB EEPROM emulation via Flash.
Peripherals are tightly coupled via the Port Integration Module (PIM), enabling flexible signal routing for up to 56 GPIOs across ports A–J, PS, PT, and PM. Clocking uses dual sources: internal 1–8 MHz RC oscillator and external crystal up to 32 MHz, with IPLL supporting programmable multiplication for stable 25 MHz system clock.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit address space and 16 MB linear memory map |
| Flash Memory | 128 KB with ECC, 64 × 2 KB blocks, 100K write/erase cycles, 10-year data retention |
| SRAM | 8 KB static RAM with byte-wide access and no wait states at full speed |
| ADC Resolution | 12-bit successive approximation with 8 input channels and 8 µs conversion time |
| CAN Interface | One MSCAN module compliant with ISO 11898-1, supporting CAN 2.0B protocol and 1 Mbit/s operation |
| Operating Temperature | -40°C to +125°C ambient, qualified per AEC-Q100 Grade 1 requirements |
| Supply Voltage | 4.5 V to 5.5 V VDD, with on-chip 5 V regulator (VREG) for internal logic and analog blocks |
Pinout & Package
LQFP-64 (10 mm × 10 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDX | Power supply inputs | Separate digital (VDD), analog (VDDA), and external oscillator (VDDX) rails for noise isolation |
| VSS, VSSA | GND references | Digital ground (VSS) and dedicated analog ground (VSSA) minimize coupling into ADC/DAC paths |
| XTAL, EXTAL | Crystal oscillator terminals | Supports fundamental-mode crystals up to 32 MHz; internal load capacitors configurable via register |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; debounced by internal circuitry for robust startup |
| PORTA[7:0] | General-purpose I/O | 8-bit port with interrupt-on-change capability and configurable slew rate for EMI control |
| CANRX, CANTX | CAN physical layer interface | Differential receiver (CANRX) and transmitter (CANTX) pins directly connect to external transceiver |
| AD0–AD7 | ADC analog inputs | Eight dedicated analog input pins supporting single-ended or differential acquisition modes |
| EREFH, EREFL | External reference voltage | Enable precision ADC measurements using external 0–5 V reference instead of internal VDD-based reference |
Key Features
| Feature | Design Value |
|---|---|
| On-chip Flash ECC | Single-bit error correction and double-bit error detection ensures reliable code execution in harsh automotive environments |
| Background Debug (BDM) | Single-wire debug interface enables non-intrusive flash programming and real-time variable inspection without halting CPU |
| MSCAN Module | Hardware-based CAN message filtering, buffering, and automatic retransmission reduce CPU overhead in networked ECUs |
| Programmable PLL | IPLL generates precise 25 MHz system clock from low-frequency crystal or RC source, improving EMI performance vs. direct high-speed oscillation |
| Security Protection | Flash security byte prevents unauthorized read-out of firmware; BDM access disabled after secure lock activation |
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 engines. IC Role / Device Role / Timing Role: Primary MCU executing closed-loop fuel injection and ignition timing algorithms with deterministic 25 MHz instruction throughput. Use Value: Integrated 12-bit ADC (8 µs conversion) and CAN 2.0B enable synchronized sensor sampling and actuator command broadcast within strict ASAM MC² timing constraints. | Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator interfacing with LIN slaves and relays via GPIO and PWM outputs. Use Value: 56 GPIOs routed through PIM allow flexible pin assignment for legacy switch inputs and modern CAN/LIN gateways without PCB redesign. |
| Transmission Control Unit (TCU) | Advanced Driver Assistance Systems (ADAS) Sensor Interface |
Use Scenario: Gear selection logic and solenoid driver control based on vehicle speed, engine load, and driver input. IC Role / Device Role / Timing Role: Safety-critical controller with watchdog supervision and flash ECC ensuring fail-safe gear engagement. Use Value: AEC-Q100 Grade 1 qualification (-40°C to +125°C) and built-in COP timer guarantee operation under under-hood thermal stress. | Use Scenario: Signal conditioning and preprocessing of radar or ultrasonic sensor outputs before forwarding to main ADAS processor. IC Role / Device Role / Timing Role: Edge-triggered interrupt handling for time-of-flight measurement pulses with sub-microsecond latency. Use Value: Hardware timer capture (TIM16B8CV3) provides 1 µs resolution timestamping independent of CPU load, critical for distance calculation accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12G128MALR | Same die, identical Flash/SRAM/ADC/CAN specs; differs only in packaging (MAPBGA-112 vs LQFP-64) and temperature grade (−40°C to +105°C) | Targeted at space-constrained modules where BGA footprint and lower max temp suffice | Select when board layout favors BGA and ambient operating range does not exceed +105°C |
| S912ZVL12F0MLFR | Z-series derivative with enhanced CAN FD support, 32 KB Flash, and integrated LIN transceiver; lacks 12-bit ADC and has reduced GPIO count | Designed for next-gen gateway modules requiring CAN FD bandwidth and LIN master capability | Choose when migrating toward CAN FD infrastructure and LIN integration is required over high-resolution analog sensing |
Compared with MC9S12G128MALR, the S9S12G128AMLFR offers superior thermal resilience for under-hood placement; versus S912ZVL12F0MLFR, it retains higher analog fidelity and legacy CAN compatibility at the cost of newer protocol support.
Availability
S9S12G128AMLFR 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 S9S12G128AMLFR 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 focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in automotive microcontrollers dating to Motorola's S12 lineage.
The S9S12G128AMLFR belongs to the MC9S12G family, engineered specifically for cost-sensitive, high-reliability automotive applications such as powertrain and chassis control where AEC-Q100 compliance and on-chip functional safety features are mandatory.
FAQ
What is the maximum operating frequency of the S9S12G128AMLFR?
The S9S12G128AMLFR achieves a maximum core clock frequency of 25 MHz using its internal Phase-Locked Loop (IPLL), which multiplies an external crystal or internal RC oscillator source. This frequency is sustained across the full −40°C to +125°C operating range and supports deterministic real-time execution for automotive control loops. The S9S12G128AMLFR's timing architecture ensures zero wait-state access to Flash and SRAM at this speed.
Does the S9S12G128AMLFR include hardware support for CAN communication?
Yes, the S9S12G128AMLFR integrates one Freescale Scalable Controller Area Network (MSCAN) module compliant with ISO 11898-1 and CAN 2.0B protocol. It supports bit rates up to 1 Mbit/s, message filtering, three transmit buffers, and four receive buffers. The S9S12G128AMLFR exposes dedicated CANTX and CANRX pins for connection to an external physical-layer transceiver, eliminating need for external CAN controllers.
What type of analog-to-digital converter is included in the S9S12G128AMLFR?
The S9S12G128AMLFR includes the ADC12B8CV2 module: a 12-bit successive-approximation ADC with eight analog input channels, programmable sample-and-hold time, and conversion times as fast as 8 µs. It supports both single-ended and differential input modes, and features internal reference (VDD-based) or external reference (EREFH/EREFL) selection - a key capability confirmed in Chapter 12 of the MC9S12G Family Reference Manual Rev. 1.25.
Is the S9S12G128AMLFR qualified for automotive use?
Yes, the S9S12G128AMLFR is AEC-Q100 qualified for Grade 1 operation (−40°C to +125°C ambient), with manufacturing and testing performed to automotive reliability standards. Its on-chip features - including Flash ECC, COP watchdog, BDM security lock, and voltage monitor - are designed to meet functional safety requirements for ASIL-B–capable systems. The S9S12G128AMLFR part number suffix "MLFR" explicitly denotes this automotive qualification.
What debug interface does the S9S12G128AMLFR support?
The S9S12G128AMLFR supports the Background Debug Mode (BDM) interface via the BKGD pin, enabling single-wire in-circuit debugging, flash programming, and real-time memory inspection without halting CPU execution. This interface is fully compatible with standard Freescale/NXP BDM tools and is documented in Chapter 7 of the MC9S12G Family Reference Manual Rev. 1.25. The S9S12G128AMLFR implements S12SBDMV1 revision with full command set and hardware handshake protocol.
S9S12G128AMLFR 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:
S9S12G128AMLFR FAQ
1.How can I place an order for S9S12G128AMLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12G128AMLFR 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 S9S12G128AMLFR reliable?
The price and inventory of S9S12G128AMLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12G128AMLFR is usually 5 days.
3.What payment methods are accepted for S9S12G128AMLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12G128AMLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12G128AMLFR?
S9S12G128AMLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12G128AMLFR 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 S9S12G128AMLFR?
For technical support, including S9S12G128AMLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12G128AMLFR requirements.
6.How does Aetrix verify that S9S12G128AMLFR is sourced from the original manufacturer or authorized distributors?
All S9S12G128AMLFR 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 S9S12G128AMLFR meets industry standards.
7.What is the process for return or replacement of S9S12G128AMLFR?
All S9S12G128AMLFR units undergo pre-shipment inspection (PSI). If there is an issue with S9S12G128AMLFR, 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 S9S12G128AMLFR part is unused and in its original packaging.
Return procedure for S9S12G128AMLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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