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NXP Semiconductors S912XES384J3MAA
- Part No.:
- S912XES384J3MAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S912XES384J3MAA.pdf
- Description:
- ULTRA-RELIABLE S12XE HIGH-PERFOR
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Product details
Overview
S912XES384J3MAA from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring a 50 MHz S12X CPU core, 384 KB on-chip flash memory, 24 KB RAM, and integrated XGATE coprocessor for offloading time-critical tasks. It supports CAN 2.0B, SPI, IIC, SCI, PWM, ADC12 (12-bit, 16-channel), and ECT timer modules - deployed in automotive body control modules requiring deterministic real-time response and functional safety support.
For engineers reviewing the S912XES384J3MAA datasheet, S912XES384J3MAA pinout, S912XES384J3MAA application, or S912XES384J3MAA equivalent, this page delivers verified package mapping (112-pin LQFP), validated peripheral register sets per MC9S12XE-Family Reference Manual Rev. 1.25, confirmed flash endurance (100k erase/write cycles), and two field-validated alternative MCU options with documented memory/peripheral trade-offs.
Technical Context
The S912XES384J3MAA implements the S12X CPU12XV2 core with enhanced addressing (24-bit linear), instruction pipelining, and hardware multiply/divide. Its XGATE V3 coprocessor operates independently with dedicated 2 KB RAM and supports autonomous handling of ADC conversions, CAN message buffering, and PWM synchronization without CPU intervention.
Memory architecture includes 384 KB flash organized in 2 KB sectors with ECC protection, 24 KB general-purpose RAM, and 4 KB XGATE RAM. Peripheral integration follows the S12XE family specification: dual 12-bit ADCs (ADC0/ADC1), 8-channel enhanced capture timer (ECT16B8CV3), scalable CAN controller (S12MSCANV3), and full-featured serial interfaces (SCI, SPI, IIC).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit core @ 50 MHz - delivers 50 MIPS with 24-bit addressing and hardware multiply/divide for deterministic control loops. |
| Flash Memory | 384 KB on-chip flash (S12XFTM384K2V1 module) - supports 100k erase/write cycles and sector-level protection for firmware updates. |
| RAM | 24 KB general-purpose RAM + 4 KB XGATE RAM - enables real-time data buffering and coprocessor task isolation. |
| ADC | Two 12-bit ADCs (ADC0/ADC1), 16-channel total, 8 µs conversion time - suitable for sensor signal acquisition in engine management systems. |
| CAN Interface | Scalable CAN 2.0B controller (S12MSCANV3) with 16 message buffers - supports automotive network diagnostics and ECU communication. |
| Timer System | Enhanced Capture Timer (ECT16B8CV3) with 8 input capture/output compare channels - provides precise PWM generation and event timing for motor control. |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch) - RoHS-compliant, industrial temperature range (–40°C to +105°C). |
Pinout & Package
Package: 112-pin LQFP (16 × 16 mm, 0.4 mm pitch), lead-free, moisture sensitivity level 3 (MSL3). Pinout conforms to MC9S12XE-Family Reference Manual Rev. 1.25, Appendix B (Package Information) and Chapter 1.2.1 (Device Pinout).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Dedicated domains for digital logic (VDD), analog peripherals (VDDA), and PLL circuitry (VDDPLL) - enable noise isolation and stable ADC/PLL operation. |
| VSS, VSSA, VSSPLL | Ground returns | Separate ground paths minimize coupling between digital switching noise and sensitive analog/PLL circuits. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates cold start sequence including flash initialization and vector fetch from 0xFFFE–0xFFFF. |
| XTAL, EXTAL | Crystal oscillator terminals | Supports Pierce oscillator configuration (S12XOSCLCPV2) for external crystal up to 8 MHz - feeds CRG module for system clock derivation. |
| PORTA–PORTL, PORTP, PORTR | Multi-function I/O ports | Configurable as GPIO, peripheral signals (CAN_TX/RX, SCI_TX/RX, PWM outputs, ADC inputs), or external bus interface - controlled via PIM registers (S12XEPIMV1). |
Key Features
| Feature | Design Value |
|---|---|
| XGATE coprocessor | Independent 16-bit RISC engine with 2 KB RAM - executes time-critical ISR tasks (e.g., CAN message handling) without CPU context switch overhead. |
| Flash security | On-chip flash protection via MPU and security byte - prevents unauthorized read-out and supports secure boot authentication. |
| Dual 12-bit ADC | Simultaneous sampling across ADC0/ADC1 with hardware trigger synchronization - enables phase-aligned current/voltage measurement in motor drives. |
| Enhanced CAN controller | 16-message buffer FIFO with timestamping and loopback self-test mode - meets ISO 11898-1 requirements for automotive ECU diagnostics. |
| Background Debug Module (BDM) | Single-wire debug interface compliant with S12XBDMV2 spec - enables non-intrusive breakpoint setting and real-time register inspection during runtime. |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
Use Scenario: Centralized management of door locks, lighting, wipers, and HVAC actuators in mid-tier passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing LIN/CAN gateway logic, PWM fan speed control, and ADC-based ambient light sensing. Use Value: Integrated 384 KB flash stores multi-variant BCM firmware; XGATE handles LIN frame assembly autonomously, reducing CPU load by ~35% in active mode. |
Use Scenario: Secondary controller for throttle actuator positioning, fuel injector timing, and knock sensor preprocessing in distributed engine management architectures. IC Role / Device Role / Timing Role: Real-time subsystem MCU synchronizing ADC sampling with crankshaft position pulses and generating precise 10-bit PWM for stepper motor drive. Use Value: ECT16B8CV3 timer supports 100 ns resolution edge capture on crank signal; dual ADCs acquire cylinder pressure and intake air temp simultaneously with <1 µs skew. |
| Industrial Motor Drive Controller | Commercial Vehicle Telematics Gateway |
Use Scenario: Compact 3-phase inverter control for HVAC compressors and conveyor belt drives in factory automation equipment. IC Role / Device Role / Timing Role: Motion control MCU managing space-vector PWM generation, overcurrent fault detection, and thermal monitoring via onboard ADC. Use Value: Hardware PWM sync output ensures gate driver dead-time compliance; 24 KB RAM buffers encoder quadrature counts and PID error history for adaptive tuning. |
Use Scenario: CAN-to-cellular protocol translator aggregating J1939 vehicle bus data for remote fleet monitoring and predictive maintenance reporting. IC Role / Device Role / Timing Role: Protocol bridge MCU parsing CAN messages, applying DBC-based signal scaling, and formatting JSON payloads for LTE modem transmission. Use Value: S12MSCANV3 supports 1 Mbps bit rate and automatic message filtering; XGATE pre-processes CAN ID arbitration while CPU manages TCP/IP stack. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MAL | 1 MB flash, 64 KB RAM, same 112-pin LQFP package - adds external bus interface (EBI) and extra CAN channel. | Required for designs needing external SRAM/Flash expansion or dual-CAN redundancy (e.g., heavy-duty truck ECUs). | Select when future firmware growth or external memory interfacing is mandated; S912XES384J3MAA remains optimal for cost-sensitive, self-contained BCMs. |
| S912XDP512F0MLF | 512 KB flash, 32 KB RAM, 144-pin LQFP - includes additional ADC12 channels and enhanced PWM resolution (16-bit center-aligned). | Preferred for high-precision motor control where >12-bit ADC resolution and extended PWM duty cycle granularity are critical. | Choose only if application requires >384 KB code space or ≥16 ADC channels; S912XES384J3MAA offers better BOM cost for standard automotive body functions. |
Compared with MC9S12XEP100MAL and S912XDP512F0MLF, the S912XES384J3MAA delivers optimal balance of flash density, peripheral count, and package footprint for mid-complexity automotive control nodes - avoiding over-specification while maintaining full S12XE-family software compatibility and toolchain support.
Availability
S912XES384J3MAA is available at Aetrix Electronics and suitable for automotive body control modules, industrial motor controllers, and commercial vehicle telematics gateways requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 Grade 2 qualification.
Supply support for S912XES384J3MAA 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 acquired Freescale in 2015 and maintains full technical support, documentation, and product lifecycle management for the legacy S12XE family.
The S912XES384J3MAA belongs to the HCS12X microcontroller product line, designed specifically for cost-sensitive, safety-aware automotive and industrial control applications requiring deterministic real-time performance and robust peripheral integration.
FAQ
What is the maximum operating frequency of the S912XES384J3MAA?
The S912XES384J3MAA operates at a maximum core frequency of 50 MHz, achieved via its internal Phase-Locked Loop (PLL) using the S12XECRGV1 clock generator module. This frequency is sustained across the full industrial temperature range (–40°C to +105°C) and supports 50 MIPS throughput for real-time control tasks.
Does the S912XES384J3MAA support CAN FD?
No, the S912XES384J3MAA implements the S12MSCANV3 module, which supports Classical CAN 2.0B only (up to 1 Mbps). It does not include CAN FD features such as flexible data-rate, extended data length, or CRC enhancements. For CAN FD capability, designers must select newer S32K or MPC57xx families.
How many ADC channels does the S912XES384J3MAA provide, and what is their resolution?
The S912XES384J3MAA integrates two independent 12-bit successive-approximation ADCs (ADC0 and ADC1), totaling 16 analog input channels. Each ADC achieves 12-bit resolution with typical INL of ±1 LSB and conversion time of 8 µs per sample under nominal conditions.
Is the S912XES384J3MAA pin-compatible with other S12XE family members?
The S912XES384J3MAA uses a 112-pin LQFP package that matches the mechanical footprint and pin assignment of other 112-pin S12XE derivatives (e.g., MC9S12XEP100MAL), but electrical compatibility depends on peripheral enablement. Unused pins may differ in function; always verify signal routing against the specific derivative's pin multiplexing table in the MC9S12XE-Family Reference Manual.
What debug interface does the S912XES384J3MAA support?
The S912XES384J3MAA supports the Background Debug Module (BDM) interface per S12XBDMV2 specification, using a single-wire physical connection (BKGD pin) for non-intrusive debugging, flash programming, and real-time register access - compatible with standard P&E Micro and Segger J-Link BDM adapters.
S912XES384J3MAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12X
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 50MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 384KB (384K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 24K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.72V ~ 5.5V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XES384J3MAA FAQ
1.How can I place an order for S912XES384J3MAA through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XES384J3MAA 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 S912XES384J3MAA reliable?
The price and inventory of S912XES384J3MAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XES384J3MAA is usually 5 days.
3.What payment methods are accepted for S912XES384J3MAA?
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S912XES384J3MAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XES384J3MAA 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 S912XES384J3MAA?
For technical support, including S912XES384J3MAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XES384J3MAA requirements.
6.How does Aetrix verify that S912XES384J3MAA is sourced from the original manufacturer or authorized distributors?
All S912XES384J3MAA 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 S912XES384J3MAA meets industry standards.
7.What is the process for return or replacement of S912XES384J3MAA?
All S912XES384J3MAA units undergo pre-shipment inspection (PSI). If there is an issue with S912XES384J3MAA, 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 S912XES384J3MAA part is unused and in its original packaging.
Return procedure for S912XES384J3MAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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