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NXP Semiconductors S9S12XS128J1MAL
- Part No.:
- S9S12XS128J1MAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S9S12XS128J1MAL.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:300
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Product details
Overview
S9S12XS128J1MAL from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X-based microcontroller featuring 128 KB on-chip flash memory, 8 KB RAM, and a 50 MHz CPU clock. It integrates dual CAN 2.0B controllers, 12-bit ADC with 16 channels, 8-channel PWM, and background debug module (BDM) for in-circuit debugging. It targets automotive body control modules requiring robust real-time I/O and CAN network interfacing.
For engineers reviewing the S9S12XS128J1MAL datasheet, S9S12XS128J1MAL pinout, S9S12XS128J1MAL application, or S9S12XS128J1MAL equivalent, key selection criteria include its 80-pin LQFP package, 5V tolerant I/O, integrated voltage regulator (3.3 V core), CAN bus timing compliance, and S12XS family instruction set compatibility with legacy MC9S12 code.
Technical Context
The S9S12XS128J1MAL implements the enhanced S12X CPU core with XGATE co-processor support for offloading interrupt-intensive tasks like CAN message handling and PWM synchronization. Its memory architecture includes paged flash with EEPROM emulation, bank-switched RAM, and configurable wait states for external bus interface operation.
It supports multiple low-power modes (Wait, Stop, Freeze) with selective peripheral clock gating, and features a scalable CAN controller (S12MSCANV3) supporting both standard and extended frames, programmable bit timing, and hardware message buffering - critical for deterministic automotive communication stacks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X 16-bit CPU with XGATE co-processor for parallel interrupt processing |
| Flash Memory | 128 KB on-chip flash with EEPROM emulation and secure block protection |
| RAM | 8 KB on-chip RAM with retention in Stop mode |
| CPU Frequency | Up to 50 MHz system clock via internal PLL or external crystal (1–32 MHz) |
| ADC | 12-bit successive approximation ADC with 16 input channels and 8 µs conversion time |
| CAN Interfaces | Dual independent CAN 2.0B controllers with 64-message object buffers per module |
| I/O Pins | 64 general-purpose I/O pins with programmable pull-up/down, slew rate control, and interrupt capability |
| Supply Voltage | 5.0 V ±10% main supply; internal 3.3 V regulator powers core and peripherals |
Pinout & Package
Package: 80-pin LQFP (12 × 12 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate analog (VDDA), digital (VDD), and PLL (VDDPLL) supplies enable noise isolation for ADC and clock subsystems |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated analog (VSSA) and PLL (VSSPLL) grounds minimize coupling noise in mixed-signal operation |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; supports external watchdog or power-on reset assertion |
| XTAL, EXTAL | Crystal oscillator terminals | Supports fundamental-mode crystals from 1–32 MHz; internal load capacitors configurable via register |
| CAN0_TX, CAN0_RX | CAN0 differential transceiver interface | Direct connection to external CAN transceiver (e.g., TJA1042); logic-level signals compliant with ISO 11898-2 |
| CAN1_TX, CAN1_RX | CAN1 differential transceiver interface | Independent second CAN channel for gateway or redundant network applications |
| PORTA[7:0] | General-purpose I/O port | 8-bit bidirectional port with individual direction control, pull-up enable, and interrupt-on-change capability |
| PORTB[7:0] | General-purpose I/O port | 8-bit port supporting high-current drive (20 mA sink/source) for direct LED or relay control |
| PORTK[7:0] | ADC input multiplexer port | Configurable as analog inputs AD0[7:0]; supports single-ended or differential ADC sampling |
| PTP0–PTP7 | PWM output channels | Eight independent PWM outputs with center-aligned/edge-aligned modes, dead-time insertion, and fault protection |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Offloads up to 16 concurrent interrupt service routines from main CPU, reducing latency for CAN and timer events |
| Dual CAN 2.0B controllers | Enables vehicle gateway functionality with independent message filtering, buffering, and error handling per channel |
| On-chip voltage regulator | Generates stable 3.3 V core supply from 5 V input, eliminating need for external LDO in cost-sensitive designs |
| Background Debug Module (BDM) | Single-wire debug interface supporting full-speed halt/resume, memory read/write, and flash programming without dedicated JTAG pins |
| EEPROM emulation | Uses flash sectors to emulate EEPROM with wear leveling and atomic write operations for parameter storage |
| Low-power Stop mode | Consumes <10 µA typical current while retaining RAM and wake-up capability via CAN, IRQ, or RTC events |
Applications
| Body Control Module (BCM) | Automotive Gateway |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, lighting, and wiper systems in modern passenger vehicles. IC Role / Device Role / Timing Role: Main system controller executing real-time state machines, managing LIN subnets, and coordinating CAN messages between ECUs. Use Value: Dual CAN interfaces allow simultaneous communication with powertrain and chassis networks; 128 KB flash accommodates complex diagnostics and OTA update routines. | Use Scenario: Protocol translation and message routing between CAN, LIN, and FlexRay domains in multi-bus vehicle architectures. IC Role / Device Role / Timing Role: Bridge controller performing frame arbitration, filtering, and retransmission with deterministic latency under 500 µs. Use Value: XGATE co-processor handles CAN receive/transmit scheduling independently, freeing CPU for protocol stack execution and security checks. |
| Engine Management Sensor Interface | Industrial Motor Control |
Use Scenario: Signal conditioning and preprocessing for crankshaft position, throttle angle, and manifold pressure sensors in engine control units. IC Role / Device Role / Timing Role: High-precision ADC front-end with synchronized sampling and hardware-triggered conversions tied to engine timing events. Use Value: 12-bit ADC with 16 channels and 8 µs conversion enables simultaneous capture of multiple sensor inputs at 10 kHz sample rate. | Use Scenario: Closed-loop speed and torque control of BLDC motors in HVAC blowers, power tools, and industrial actuators. IC Role / Device Role / Timing Role: Real-time PWM generator with dead-time insertion, fault monitoring, and current sensing integration. Use Value: Eight-channel PWM with center-aligned mode and hardware fault shutdown ensures safe commutation sequencing and overcurrent response <2 µs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S9S12XS256J1MAL | 256 KB flash, 12 KB RAM, same pinout and peripheral set | Higher firmware complexity, larger diagnostic log storage, future-proofing for feature expansion | Select when >128 KB code space required or long-term roadmap includes additional CAN/LIN nodes |
| MC9S12XDP512MAG | 512 KB flash, 32 KB RAM, 112-pin LQFP, includes USB and enhanced timers | Requires PCB redesign; suited for high-end gateway or infotainment companion MCU roles | Choose only if migrating to larger memory footprint and additional peripherals justifies layout change |
Compared with S9S12XS128J1MAL, the S9S12XS256J1MAL offers double flash capacity without layout impact, while the MC9S12XDP512MAG provides significantly more memory and USB but mandates new board design - making the former the preferred upgrade path for existing 80-pin LQFP deployments.
Availability
S9S12XS128J1MAL is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, engine sensor interfaces, and industrial motor control systems requiring stable component supply, long lifecycle support, and AEC-Q100 qualification.
Supply support for S9S12XS128J1MAL 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 applications, with deep heritage in microcontroller innovation through its acquisition of Freescale.
The S12XS family was designed specifically for cost-sensitive, high-reliability automotive applications demanding CAN connectivity, real-time performance, and long-term supply stability - targeting body electronics, chassis, and powertrain sub-systems.
FAQ
What is the maximum operating frequency of the S9S12XS128J1MAL?
The S9S12XS128J1MAL supports a maximum CPU bus frequency of 50 MHz, achieved using its internal phase-locked loop (PLL) with an external crystal or oscillator input ranging from 1 to 32 MHz. This frequency governs instruction execution, peripheral timing, and CAN bit-rate generation. The S9S12XS128J1MAL maintains timing integrity across temperature and voltage ranges per AEC-Q100 Grade 2 specifications.
Does the S9S12XS128J1MAL include an integrated voltage regulator?
Yes, the S9S12XS128J1MAL integrates a linear voltage regulator that generates a stable 3.3 V supply for the core logic and internal peripherals from a 5.0 V ±10% main supply. This eliminates the need for an external LDO in many automotive applications and simplifies power design. The regulator is enabled by default and supports low-dropout operation during cold-crank conditions down to 4.5 V input.
How many CAN controllers does the S9S12XS128J1MAL support?
The S9S12XS128J1MAL integrates two independent Freescale Scalable CAN (S12MSCANV3) controllers, each compliant with CAN 2.0B specification and supporting both standard (11-bit) and extended (29-bit) identifiers. Each controller features 64 message objects with programmable acceptance filtering, automatic retransmission, and error confinement - enabling robust dual-network operation in gateway or redundancy-critical applications.
Is the S9S12XS128J1MAL pin-compatible with other S12XS family members?
Yes, the S9S12XS128J1MAL is pin-compatible with other 80-pin LQFP variants in the S12XS family, including the S9S12XS64J1MAL and S9S12XS256J1MAL. Identical pin assignments for power, ground, reset, crystal, CAN, and primary I/O ports allow drop-in replacement within the same package footprint, facilitating design scalability and firmware reuse across memory variants.
What debug interface does the S9S12XS128J1MAL use?
The S9S12XS128J1MAL uses the Background Debug Module (BDM) interface, a single-wire serial protocol accessible via the BKGD pin. It supports full-speed debugging, flash programming, memory inspection, and breakpoint setting without requiring JTAG pins or external debug probes beyond a standard BDM cable. This interface is fully supported by CodeWarrior Development Studio and compatible third-party tools.
S9S12XS128J1MAL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 40MHz
- Connectivity:
- CANbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 91
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 8K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.72V ~ 5.5V
- Data Converters:
- A/D 16x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12XS128J1MAL FAQ
1.How can I place an order for S9S12XS128J1MAL through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12XS128J1MAL 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 S9S12XS128J1MAL reliable?
The price and inventory of S9S12XS128J1MAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12XS128J1MAL is usually 5 days.
3.What payment methods are accepted for S9S12XS128J1MAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12XS128J1MAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12XS128J1MAL?
S9S12XS128J1MAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12XS128J1MAL 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 S9S12XS128J1MAL?
For technical support, including S9S12XS128J1MAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12XS128J1MAL requirements.
6.How does Aetrix verify that S9S12XS128J1MAL is sourced from the original manufacturer or authorized distributors?
All S9S12XS128J1MAL 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 S9S12XS128J1MAL meets industry standards.
7.What is the process for return or replacement of S9S12XS128J1MAL?
All S9S12XS128J1MAL units undergo pre-shipment inspection (PSI). If there is an issue with S9S12XS128J1MAL, 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 S9S12XS128J1MAL part is unused and in its original packaging.
Return procedure for S9S12XS128J1MAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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