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NXP Semiconductors S912XEQ384F1VAG
- Part No.:
- S912XEQ384F1VAG
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 144-LQFP
- Datasheet:
-
S912XEQ384F1VAG.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 144LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,109
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Product details
Overview
S912XEQ384F1VAG from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 384 KB on-chip Flash memory with ECC, 24 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 ambient temperature.
For engineers reviewing the S912XEQ384F1VAG datasheet, S912XEQ384F1VAG pinout, S912XEQ384F1VAG application, or S912XEQ384F1VAG equivalent, key selection criteria include its 50 MHz bus frequency, 144-pin LQFP package with non-multiplexed external bus support, MPU-enabled system integrity, and XGATE-accelerated peripheral handling for real-time automotive communication stacks.
Technical Context
The S912XEQ384F1VAG implements the CPU12X core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), supports up to 50 MHz bus clock via IPLL, and integrates an XGATE co-processor running at 100 MHz to offload MSCAN, LIN, and SPI operations without CPU intervention. Its Memory Protection Unit defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes.
This device includes two independent ATD converters (8/10/12-bit resolution, 16-channel multiplexer, 3 µs 10-bit conversion time), four MSCAN modules (CAN 2.0A/B compliant, up to 1 Mbps, with FULL-CAN capability when paired with XGATE), and a dedicated 16-bit ECT module with 8 input-capture/output-compare channels and noise-immune delay counters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, compatible with MC9S12 ISA (minus MEM/WAV/REV instructions), enabling legacy code reuse with enhanced addressing. |
| Flash Memory | 384 KB with ECC: 1-bit correction / 2-bit detection per 64-bit word, sector erase size 1024 bytes, security lock enabled. |
| RAM | 24 KB SRAM, accessible by both CPU and XGATE without wait states, supporting concurrent real-time data buffering. |
| Operating Voltage | 3.3 V ±5% to 5.0 V +10%, with separate VREG and I/O supplies for optimized EMC filtering in automotive environments. |
| Temperature Range | -40°C to 125°C ambient, qualified for under-hood automotive applications requiring extended thermal reliability. |
| Bus Frequency | 50 MHz maximum CPU bus frequency; XGATE operates at 100 MHz, enabling deterministic offloading of time-critical peripherals. |
| CAN Modules | Four MSCAN modules (CAN0/CAN1/CAN2/CAN4), each supporting CAN 2.0A/B, 0–8 byte payloads, and software-configurable bit rates up to 1 Mbps. |
| ATD Converter | Two independent ATD modules, 16-channel multiplexer, 10-bit single conversion in 3 µs, internal oscillator support for Stop-mode operation. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no 918-03), with non-multiplexed external bus interface enabled.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Main power supply | Supplies core logic; requires external decoupling per automotive EMC requirements. |
| VDDIO | I/O power supply | Independent rail enables optimized noise isolation between analog/digital domains. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers POR, COP timeout, or MPU violation recovery. |
| XTAL/EXTAL | Clock crystal terminals | Supports 4–16 MHz Pierce oscillator; connects to external crystal for stable IPLL reference. |
| CS0–CS3 | Chip select outputs | Enable glue-less interface to external RAM/Flash; configurable wait-state timing or EWAIT deassertion. |
| PORTA–PORTP | General-purpose I/O ports | Up to 119 total I/O pins; ports J/H/P support edge-sensitive wake-up from STOP/WAIT modes. |
| CAN0_TX/CAN0_RX | CAN0 differential transceiver interface | Direct connection to external CAN transceiver; supports high-speed (up to 1 Mbps) bus communication. |
| SCI0_TX/SCI0_RX | SCI0 serial interface | Full-duplex NRZ UART; supports LIN physical layer via break detect and wake-up on active edge. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | Eight programmable address regions with 8-byte granularity; enforces no-write/no-execute policies and triggers non-maskable interrupt on violation. |
| XGATE Co-processor | 100 MIPS RISC engine executing C code; handles MSCAN mailbox management, LIN frame assembly, and SPI transfers without CPU cycles or wait states. |
| ECC-Protected Flash | 64-bit data + 8-bit syndrome bits per word enable real-time 1-bit correction and 2-bit detection-critical for ASIL-B functional safety compliance. |
| Enhanced ATD with Stop-mode Support | Internal oscillator allows analog sampling during low-power STOP mode; wake-up on threshold match enables event-driven sensor monitoring. |
| Non-Multiplexed External Bus | Available on 144-pin LQFP; supports asynchronous SRAM/Flash with programmable wait states or EWAIT handshake-eliminates need for glue logic. |
| Full-CAN with XGATE Acceleration | Enables unlimited virtual mailboxes and zero-latency message filtering; decouples CAN protocol stack execution from main CPU scheduling. |
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 managing PWM-driven power drivers, reading analog sensor inputs (e.g., ambient light, temperature), and coordinating LIN slave nodes via integrated SCI modules. Use Value: XGATE handles LIN frame generation and error recovery autonomously, freeing CPU for higher-layer diagnostics and fail-safe state management under ASIL-B constraints. |
Use Scenario: Protocol translation and message routing between high-speed CAN backbone (powertrain/chassis) and low-speed LIN clusters (interior sensors, switches). IC Role / Device Role / Timing Role: Dual-CAN/LIN bridge with real-time message filtering, prioritization, and retransmission-managed by XGATE while CPU executes network management (NM) and UDS diagnostics. Use Value: Four MSCAN modules allow simultaneous connection to multiple CAN domains; non-multiplexed bus enables local D-Flash logging of diagnostic events without CPU overhead. |
| Roof Module Controller | Seat Control Unit |
|
Use Scenario: Integration of sunroof actuation, panoramic roof shading, rain sensor interface, and interior lighting dimming in premium vehicle roof systems. IC Role / Device Role / Timing Role: Real-time motion control via 8-channel PWM; analog sensing of position feedback and ambient light; CAN-based status reporting to BCM. Use Value: 3 µs ATD conversion time ensures precise closed-loop position control; MPU isolates safety-critical motor shutdown logic from application firmware updates. |
Use Scenario: Motorized seat adjustment with memory presets, heating/cooling elements, and occupant detection via capacitive or pressure sensors. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating analog (seat position, temp), digital (switches), and LIN (occupant sensor) inputs; drives H-bridge drivers via PWM and SPI-connected display. Use Value: ECC Flash ensures reliable storage of user preference profiles across 100k+ write cycles; D-Flash sectors provide wear-leveling for EEPROM-emulated parameter storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEQ512CAG | 512 KB Flash, 32 KB RAM, same 144-pin LQFP package and peripheral set; identical XGATE, MPU, and CAN architecture. | Higher Flash/RAM capacity supports larger AUTOSAR BSW stacks or dual-application partitioning (e.g., infotainment + body control). | Select when firmware image size exceeds 384 KB or when future-proofing for feature expansion without PCB change. |
| S912XEP100J1VAG | 1 MB Flash, 64 KB RAM, 208-pin MAPBGA; adds fifth CAN module and expands I/O to 152 pins; retains same CPU12X/XGATE/MPU foundation. | Targeted at high-end gateways or domain controllers requiring multi-bus redundancy and expanded peripheral connectivity. | Choose for new designs needing maximum scalability; not drop-in due to package and pin count differences. |
Compared with S912XEQ384F1VAG, the MC9S12XEQ512CAG offers direct pin-compatible headroom for larger code footprints, while the S912XEP100J1VAG provides architectural continuity with significantly higher integration-requiring layout revision but enabling next-tier automotive domain controller functionality.
Availability
S912XEQ384F1VAG is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, roof control units, and seat control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ384F1VAG 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 automotive microcontrollers dating back to Motorola and Freescale.
The S912XEQ384F1VAG belongs to the S12XE family-designed specifically for automotive body electronics and gateway functions where system integrity (MPU/ECC), real-time determinism (XGATE), and extended temperature operation are mandatory.
FAQ
What is the maximum bus frequency supported by the S912XEQ384F1VAG?
The S912XEQ384F1VAG supports a maximum CPU bus frequency of 50 MHz, achieved via its internally filtered Frequency Modulated Phase Locked Loop (IPLL). This enables deterministic real-time execution for automotive control loops while maintaining robust EMC performance through spread-spectrum clocking. The XGATE co-processor operates at 100 MHz, providing dedicated bandwidth for peripheral offloading independent of CPU clock scaling. S912XEQ384F1VAG maintains this performance across its full -40°C to 125°C operating range.
Does the S912XEQ384F1VAG include hardware memory protection?
Yes, the S912XEQ384F1VAG integrates a Memory Protection Unit (MPU) that defines eight configurable address regions with granularity as fine as 8 bytes. It enforces no-write and no-execute attributes and triggers a non-maskable interrupt on access violation-enabling ASIL-B–compliant partitioning of safety-critical and application firmware. This MPU is active in both Supervisor and User modes and works in conjunction with the CPU12X's condition code register to enforce privilege-level memory access control. S912XEQ384F1VAG uses this feature to isolate bootloader, CAN stack, and application layers.
How many CAN interfaces does the S912XEQ384F1VAG support?
The S912XEQ384F1VAG supports four MSCAN modules (CAN0, CAN1, CAN2, and CAN4), each compliant with CAN 2.0A/B protocols, supporting standard/extended frames, 0–8 byte payloads, and bit rates up to 1 Mbps. When used with the XGATE co-processor, these modules deliver FULL-CAN capability-including unlimited virtual mailboxes, hardware-accelerated filtering, and zero-latency message handling. S912XEQ384F1VAG does not include CAN3, distinguishing it from the EP100/EP768 variants.
What type of analog-to-digital converter is integrated into the S912XEQ384F1VAG?
The S912XEQ384F1VAG integrates two independent Analog-to-Digital Converter (ATD) modules, each offering selectable 8/10/12-bit resolution, a 16-channel analog multiplexer, and a minimum 10-bit single-conversion time of 3 µs. Each ATD includes internal oscillator support for operation in STOP mode and wake-up capability on analog comparison match. These converters are used for sensor signal acquisition (e.g., temperature, light, position) in body control applications. S912XEQ384F1VAG leverages both ATDs concurrently for redundant sensing or multi-domain monitoring.
Is the S912XEQ384F1VAG pin-compatible with other S12XE family members?
The S912XEQ384F1VAG is pin-compatible with other 144-pin LQFP variants in the S12XE family-including the MC9S12XEQ512CAG and MC9S12XET256CAG-sharing identical mechanical footprint, power/ground pinout, and peripheral signal mapping. However, it is not pin-compatible with 208-pin MAPBGA or 112-pin LQFP derivatives due to differing pin counts and I/O allocations. S912XEQ384F1VAG's compatibility enables scalable design reuse across flash-size variants without PCB redesign.
S912XEQ384F1VAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 144-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:
- 119
- 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 24x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ384F1VAG FAQ
1.How can I place an order for S912XEQ384F1VAG through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ384F1VAG 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 S912XEQ384F1VAG reliable?
The price and inventory of S912XEQ384F1VAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ384F1VAG is usually 5 days.
3.What payment methods are accepted for S912XEQ384F1VAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ384F1VAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ384F1VAG?
S912XEQ384F1VAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ384F1VAG 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 S912XEQ384F1VAG?
For technical support, including S912XEQ384F1VAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ384F1VAG requirements.
6.How does Aetrix verify that S912XEQ384F1VAG is sourced from the original manufacturer or authorized distributors?
All S912XEQ384F1VAG 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 S912XEQ384F1VAG meets industry standards.
7.What is the process for return or replacement of S912XEQ384F1VAG?
All S912XEQ384F1VAG units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ384F1VAG, 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 S912XEQ384F1VAG part is unused and in its original packaging.
Return procedure for S912XEQ384F1VAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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