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NXP Semiconductors S912XEQ512AMAL
- Part No.:
- S912XEQ512AMAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512AMAL.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,887
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Product details
Overview
S912XEQ512AMAL from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 512 KB on-chip Flash memory with ECC, 32 KB RAM, and integrated MSCAN, XGATE co-processor, and enhanced ATD. It delivers full CAN performance in body control modules and gateway applications operating at -40°C to 125°C.
For engineers reviewing the S912XEQ512AMAL datasheet, S912XEQ512AMAL pinout, S912XEQ512AMAL application, or S912XEQ512AMAL equivalent, this page provides verified technical context, package mapping, real-world use value per application, and two validated alternative parts for automotive ECU design and replacement planning.
Technical Context
The S912XEQ512AMAL implements a 16-bit CPU12X core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), 50 MHz maximum bus frequency, and dual-voltage operation (3.3 V ±5% / 5.0 V +10%). It integrates an XGATE RISC co-processor running at up to 100 MIPS, independently servicing peripherals including MSCAN, SCI, and PWM without CPU intervention.
System integrity is enforced via a Memory Protection Unit (MPU) supporting eight configurable address regions with 8-byte granularity, ECC-enabled Flash (1-bit correction / 2-bit detection), and supervisor/user mode separation. The device supports full CAN 2.0A/B with up to five MSCAN modules, though S912XEQ512AMAL specifically includes four CAN interfaces (CAN0–CAN3), six SCI modules, three SPI modules, and two IIC modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core compatible with MC9S12 ISA; enables legacy code reuse and deterministic real-time execution. |
| Flash Memory | 512 KB with ECC (64 data + 8 syndrome bits); ensures single-bit fault correction and double-bit fault detection during program execution. |
| RAM | 32 KB SRAM; sufficient for real-time task stacks, CAN mailbox buffers, and XGATE data movement operations. |
| Operating Voltage | 3.3 V ±5% or 5.0 V +10%; supports direct connection to automotive battery-supplied 5 V rails or regulated 3.3 V domains. |
| Temperature Range | -40°C to 125°C; qualified for under-hood automotive applications including body control units and gateways. |
| Bus Frequency | 50 MHz CPU bus / 100 MHz XGATE bus; enables high-throughput peripheral handling while maintaining low-latency CPU response. |
| CAN Interfaces | 4 × MSCAN modules (CAN0–CAN3); supports multi-bus vehicle networks with full CAN 2.0A/B compliance and 1 Mbps bit rate. |
| ADC Resolution | 8/10/12-bit ATD with 16-channel multiplexer; supports analog sensor acquisition (e.g., temperature, voltage, current) with 3 µs 10-bit conversion time. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no. 918-03). Pinout validated per MC9S12XEQ512AMAL datasheet Rev. 9 (2015), Table 1 and "Port Availability by Package Option" section.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Separate supplies for core logic (VDD), analog (VDDA), and PLL (VDDPLL); enable optimized EMC filtering and noise isolation. |
| VSS, VSSA, VSSPLL | Ground returns | Dedicated ground paths per supply domain prevent coupling between digital switching noise and analog/PLL circuits. |
| XTAL, EXTAL | Oscillator interface | Connects to 4–16 MHz Pierce crystal; supports loop-controlled oscillator (OSC_LCP) with full-swing option for robust startup. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers power-on reset (POR), low-voltage reset (LVR), and COP watchdog timeout recovery. |
| MODB, MODA | Mode selection inputs | Configure boot mode (e.g., Normal, Special Bootstrap, Background Debug); determine flash security and BDM entry behavior. |
| PORTA–PORTP | General-purpose I/O | Up to 119 GPIO pins across ports; support interrupt-on-change, configurable pull-up/down, hysteresis, and drive strength tuning. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Programmable in C; handles CAN message scheduling, LIN frame generation, and SPI/SCI DMA - freeing CPU for application logic. |
| Memory Protection Unit (MPU) | 8 configurable address regions with 8-byte granularity; enforces privilege separation and prevents accidental or malicious memory corruption. |
| ECC on Flash | 64-bit data + 8-bit syndrome per word; corrects single-bit errors and detects double-bit faults in real time without software overhead. |
| Enhanced ATD converter | 10-bit resolution, 3 µs conversion time, internal oscillator for Stop-mode operation; enables reliable sensor monitoring during low-power states. |
| MSCAN with XGATE offload | Full-CAN capability with unlimited mailboxes; eliminates CPU polling and enables deterministic CAN throughput up to 1 Mbps. |
| Non-multiplexed external bus | Available on 144-pin LQFP; supports glue-less interface to external RAM/Flash - critical for firmware updates and data logging in ECUs. |
Applications
| Body Control Module (BCM) | Vehicle Gateway |
|---|---|
|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC actuators in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing body control firmware, managing CAN/LIN communication, and driving PWM outputs for motor control. Use Value: XGATE offloads CAN message handling and LIN slave timing, enabling deterministic response to switch inputs and sensor events within <100 µs. |
Use Scenario: Protocol translation and message routing between high-speed CAN (powertrain), low-speed CAN (body), and LIN (sensors/actuators). IC Role / Device Role / Timing Role: Real-time gateway controller with concurrent CAN0–CAN3 interfaces and six SCI modules configured as LIN masters/slaves. Use Value: MPU isolates gateway routing tasks from diagnostic services; ECC Flash ensures firmware integrity during over-the-air update cycles. |
| Engine Bay Junction Box | Roof Module Controller |
|
Use Scenario: Power distribution and load monitoring in engine compartment junction boxes exposed to 125°C ambient. IC Role / Device Role / Timing Role: High-temperature-rated MCU supervising relay drivers, current sensing via ATD, and thermal shutdown via API timer. Use Value: 125°C rating and separate VDDA/VSSA allow accurate analog measurement of shunt voltages without external signal conditioning. |
Use Scenario: Integrated sunroof, interior lighting, and rain sensor control in roof modules requiring compact footprint and low EMI. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating LIN-based rain/light data and controlling PWM dimming for LED lighting. Use Value: Non-multiplexed external bus supports local EEPROM for calibration data storage; SPI3 enables secure RF transceiver interfacing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| S912XEP512AMAL | Same 512 KB Flash, but adds 5th CAN module (CAN4), 8-channel ECT, and 152 GPIO; uses 208-pin MAPBGA. | Required for designs needing >4 CAN buses or higher I/O count; not pin-compatible due to different package and pinout. | Select when expanding CAN topology beyond four buses or requiring external memory interface via 208-pin MAPBGA. |
| MPC5604B | 32-bit Power Architecture core, 512 KB Flash, 48 KB RAM, 3× CAN, 4× LIN; lacks XGATE but includes e200z0 core and enhanced debug. | Targets next-gen ASIL-B systems; requires toolchain migration from CodeWarrior S12X to S32DS; no hardware ECC on Flash. | Choose for new designs prioritizing ISO 26262 functional safety certification over legacy S12X code reuse. |
Compared with S912XEQ512AMAL, S912XEP512AMAL offers expanded CAN and I/O at the cost of larger footprint and layout redesign, while MPC5604B shifts to a 32-bit safety-certified architecture with different development tooling and no XGATE offload - making it suitable only for greenfield projects.
Availability
S912XEQ512AMAL is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, junction box controllers, and roof module applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ512AMAL 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 automotive, industrial, and IoT applications, delivering secure, energy-efficient, and scalable silicon solutions.
The S12XE family - including S912XEQ512AMAL - was designed specifically for automotive body electronics and gateway systems requiring high system integrity, CAN/LIN connectivity, and extended temperature operation without migrating to 32-bit architectures.
FAQ
What is the maximum operating temperature for the S912XEQ512AMAL?
The S912XEQ512AMAL is rated for operation from -40°C to 125°C, making it suitable for under-hood automotive applications such as junction boxes and engine bay controllers where ambient temperatures exceed 105°C. This rating is confirmed in Section 3.3.1 of the MC9S12XEPB Rev. 9 product brief and applies specifically to the AMAL suffix variant.
Does the S912XEQ512AMAL include hardware error correction for Flash memory?
Yes, the S912XEQ512AMAL includes Error Correction Code (ECC) on its 512 KB Flash memory, providing 1-bit fault correction and 2-bit fault detection per 64-bit word using 8 syndrome bits. This feature is implemented at the silicon level and operates transparently during read/write operations without software overhead.
How many CAN interfaces does the S912XEQ512AMAL support?
The S912XEQ512AMAL supports four MSCAN modules (CAN0 through CAN3), as specified in Table 1 of the MC9S12XEPB Rev. 9 document. It does not include CAN4 - that capability is reserved for higher-pin-count derivatives like the S912XEPxxx series in 208-pin MAPBGA packages.
Is the XGATE co-processor included in the S912XEQ512AMAL?
Yes, the S912XEQ512AMAL includes the enhanced XGATE co-processor, which runs at up to 100 MIPS and is fully programmable in C. It supports autonomous servicing of all on-chip peripherals including MSCAN, SCI, SPI, and PWM - a key feature confirmed in Sections 1 and 3.5.3 of the MC9S12XEPB Rev. 9 product brief.
What package type is used for the S912XEQ512AMAL?
The S912XEQ512AMAL uses a 144-pin LQFP package with 20 mm × 20 mm body size and 0.5 mm pitch (case number 918-03). This package supports the non-multiplexed external bus interface and is validated for automotive reflow profiles per JEDEC J-STD-020.
S912XEQ512AMAL 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:
- 50MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 91
- Program Memory Size:
- 512KB (512K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 4K x 8
- RAM Size:
- 32K 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:
S912XEQ512AMAL FAQ
1.How can I place an order for S912XEQ512AMAL through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512AMAL 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 S912XEQ512AMAL reliable?
The price and inventory of S912XEQ512AMAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512AMAL is usually 5 days.
3.What payment methods are accepted for S912XEQ512AMAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512AMAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512AMAL?
S912XEQ512AMAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512AMAL 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 S912XEQ512AMAL?
For technical support, including S912XEQ512AMAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512AMAL requirements.
6.How does Aetrix verify that S912XEQ512AMAL is sourced from the original manufacturer or authorized distributors?
All S912XEQ512AMAL 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 S912XEQ512AMAL meets industry standards.
7.What is the process for return or replacement of S912XEQ512AMAL?
All S912XEQ512AMAL units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512AMAL, 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 S912XEQ512AMAL part is unused and in its original packaging.
Return procedure for S912XEQ512AMAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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