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NXP Semiconductors S912XEQ512AVAL
- Part No.:
- S912XEQ512AVAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512AVAL.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,856
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Product details
Overview
S912XEQ512AVAL 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 PWM/ATD modules. It targets body control units and gateway nodes requiring robust real-time I/O handling, CAN/LIN communication, and system integrity features including MPU and ECC.
For engineers reviewing the S912XEQ512AVAL datasheet, S912XEQ512AVAL pinout, S912XEQ512AVAL application, or S912XEQ512AVAL equivalent, key selection criteria include its 144-pin LQFP package, -40°C to 125°C operating range, 50 MHz bus frequency, dual ATD converters with 8/10/12-bit resolution, and full CAN capability enabled by XGATE co-processing.
Technical Context
The S912XEQ512AVAL implements a 16-bit CPU12X core compatible with MC9S12 instruction set (excluding five fuzzy instructions), running at up to 50 MHz bus frequency with zero-wait-state access to all peripherals and memories. Its XGATE co-processor operates at 100 MHz, handles full CAN mailbox management independently of the CPU, and supports LIN master/slave operation via integrated SCI modules.
System integrity is enforced via an 8-region Memory Protection Unit (MPU), Flash ECC with 1-bit correction/2-bit detection, and dual-voltage-supply architecture separating I/O and internal regulator rails for optimized EMC filtering. The device includes two independent ATD converters (8/10/12-bit, 16-channel multiplexer), eight 16-bit ECT channels, and four MSCAN modules supporting CAN 2.0A/B at up to 1 Mbps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, instruction-set compatible with MC9S12 except five removed fuzzy instructions; enables legacy code reuse with enhanced addressing. |
| Flash Memory | 512 KB Flash with ECC (64 data + 8 syndrome bits), enabling single-bit error correction and double-bit fault detection during read operations. |
| RAM | 32 KB on-chip RAM, accessible without wait states; supports fast XGATE data movement and real-time buffer management. |
| Bus Frequency | 50 MHz maximum CPU bus frequency; ensures deterministic timing for automotive control loops and interrupt response. |
| XGATE Performance | 100 MHz RISC co-processor delivering up to 100 MIPS; offloads CAN/LIN protocol stacks and high-speed I/O tasks from main CPU. |
| Operating Temperature | -40°C to 125°C ambient range; qualified for under-hood and powertrain-adjacent automotive applications. |
| ADC Resolution | 8/10/12-bit configurable ATD converters; supports precise sensor signal acquisition across multiple automotive subsystems. |
| PWM Channels | 8 × 8-bit or 4 × 16-bit PWM outputs with programmable period/duty cycle; suitable for driving solenoids, lamps, and motor controls. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no 918-03). Pinout validated per MC9S12XE Family Data Sheet and Product Brief Rev. 9.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Dedicated rails for digital logic, analog circuitry, and PLL-enable independent EMC filtering and noise isolation. |
| VSS, VSSA, VSSPLL | Ground returns | Separate ground paths prevent coupling between digital switching noise, analog reference stability, and clock domain integrity. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates POR, COP timeout recovery, and illegal address fault handling. |
| XTAL, EXTAL | Oscillator crystal interface | Supports 4–16 MHz Pierce oscillator; enables low-jitter clock source for IPLL multiplication and real-time timing accuracy. |
| PORTA–PORTP | General-purpose I/O ports | Up to 119 GPIO pins with configurable pull-up/down, hysteresis, and drive strength; supports wake-up from STOP/WAIT modes. |
| CAN0_TX, CAN0_RX | CAN transceiver interface | Differential signaling pair for CAN 2.0A/B compliant communication; supports up to 1 Mbps bit rate with hardware filtering. |
| SCI0_TX, SCI0_RX | UART serial interface | Full-duplex NRZ or IrDA RZI format; supports LIN physical layer implementation with break detect and wake-up edge sensitivity. |
| ATD0[0–15] | Analog input multiplexer | 16-channel analog input selection for first ATD converter; enables simultaneous sampling of temperature, voltage, and current sensors. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 definable address regions with 8-byte granularity; enforces no-write/no-execute policies and triggers non-maskable interrupts on violation. |
| Flash ECC | 64-bit data + 8-bit syndrome encoding per word; provides field-reliable Flash retention over 10-year automotive life cycles. |
| XGATE Co-processor | Programmable in C, handles full CAN mailbox management and LIN frame processing without CPU intervention. |
| Enhanced ATD Converter | Two independent converters with 3 µs 10-bit conversion time, internal oscillator for Stop-mode operation, and analog-compare wake-up. |
| MSCAN Modules | Four CAN controllers supporting standard/extended frames, 0–8 byte payloads, and hardware-based identifier filtering (2×32-bit or 4×16-bit). |
| Pulse Width Modulator | 8-channel 8-bit or 4-channel 16-bit PWM with center/left-aligned output, emergency shutdown input, and programmable clock prescaling. |
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: Main MCU executing real-time control logic, managing CAN/LIN communication with distributed ECUs, and performing sensor fusion from analog inputs. Use Value: Integrated 4× MSCAN and LIN-capable SCI modules eliminate external transceivers; XGATE offloads protocol stacks to maintain <100 µs CAN message latency. |
Use Scenario: Protocol translation and message routing between high-speed powertrain CAN, body CAN, and LIN subnetworks. IC Role / Device Role / Timing Role: Gateway controller with dual CAN domains and LIN master functionality, using XGATE to manage concurrent bus arbitration and filtering. Use Value: Hardware-accelerated identifier filtering (2×32-bit or 4×16-bit) enables selective message forwarding with <5 µs decision latency per frame. |
| Seat & Mirror Control | Roof Module Controller |
|
Use Scenario: Position memory and motor control for driver/passenger seats and side mirrors using H-bridge drivers. IC Role / Device Role / Timing Role: Real-time PWM generator with emergency stop input, ADC for potentiometer feedback, and CAN interface for configuration updates. Use Value: 8-channel 8-bit PWM with programmable dead-time and fast shutdown input ensures safe bidirectional motor control per seat axis. |
Use Scenario: Integration of sunroof actuation, ambient lighting, rain sensor interface, and interior CAN diagnostics in overhead console. IC Role / Device Role / Timing Role: Mixed-signal controller acquiring analog sensor data (light, moisture), driving RGB LEDs via PWM, and reporting status over CAN. Use Value: Dual ATD converters allow simultaneous sampling of light and rain sensor signals while maintaining <10 µs channel-to-channel skew. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP768MAL | 768 KB Flash, 48 KB RAM, 208-pin MAPBGA; adds third ATD converter and increases I/O count to 152. | Targeted at higher-complexity gateways or central body controllers requiring expanded peripheral concurrency. | Select when >512 KB Flash and >119 GPIO are required; not pin-compatible due to 208-pin BGA vs. 144-pin LQFP. |
| MC9S12XET256VLH | 256 KB Flash, 16 KB RAM, 144-pin LQFP; retains same XGATE, MSCAN, and ATD architecture but reduced memory footprint. | Suitable for cost-sensitive entry-level body modules where CAN count and Flash size can be scaled down. | Choose for identical 144-pin LQFP footprint and software compatibility; direct replacement only if memory requirements fit within 256 KB. |
Compared with S912XEQ512AVAL, MC9S12XEP768MAL offers greater memory and I/O scalability at the cost of larger package and layout redesign, while MC9S12XET256VLH maintains pin compatibility and identical peripheral set but halves Flash/RAM capacity for simpler applications.
Availability
S912XEQ512AVAL is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, seat/mirror control units, and roof module controllers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XEQ512AVAL 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's automotive MCU leadership.
The S912XEQ512AVAL belongs to the S12XE family, designed specifically for automotive body electronics and gateway functions where functional safety, CAN/LIN integration, and system integrity (MPU/ECC) are critical design requirements.
FAQ
What is the maximum operating temperature range supported by the S912XEQ512AVAL?
The S912XEQ512AVAL is rated for operation from -40°C to 125°C ambient temperature, making it suitable for under-hood and powertrain-proximate automotive applications. This rating is confirmed in the MC9S12XE Family Product Brief Rev. 9 and applies specifically to the AVAL grade variant of the S912XEQ512AVAL device.
Does the S912XEQ512AVAL include hardware support for CAN FD?
No, the S912XEQ512AVAL implements four standard MSCAN modules compliant with CAN 2.0A/B only, supporting bit rates up to 1 Mbps and standard/extended identifiers. CAN FD functionality is not present in the S12XE family; the S912XEQ512AVAL does not support flexible data-rate framing, increased payload sizes, or FD-specific arbitration protocols.
How many CAN modules are integrated into the S912XEQ512AVAL?
The S912XEQ512AVAL integrates four MSCAN modules (CAN0, CAN1, CAN2, and CAN4), as specified in Table 1 of the MC9S12XE Family Product Brief Rev. 9. This configuration enables multi-domain CAN communication-for example, separate buses for body, chassis, and infotainment networks-without external CAN controllers.
Is the XGATE co-processor on the S912XEQ512AVAL programmable in C language?
Yes, the XGATE co-processor on the S912XEQ512AVAL is fully programmable in ANSI C using CodeWarrior development tools. The MC9S12XE Family Product Brief explicitly states that XGATE supports C-language programming and delivers up to 100 MIPS performance while handling peripheral servicing-including full CAN mailbox management-without CPU intervention.
What type of Flash memory technology is used in the S912XEQ512AVAL?
The S912XEQ512AVAL uses embedded Flash memory with Error Correction Code (ECC) implemented as 64 data bits plus 8 syndrome bits per word, enabling single-bit fault correction and double-bit fault detection. This ECC architecture is integral to the Flash array and is active during all read operations, ensuring data integrity over automotive lifetime requirements.
S912XEQ512AVAL 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512AVAL FAQ
1.How can I place an order for S912XEQ512AVAL through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512AVAL 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 S912XEQ512AVAL reliable?
The price and inventory of S912XEQ512AVAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512AVAL is usually 5 days.
3.What payment methods are accepted for S912XEQ512AVAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512AVAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512AVAL?
S912XEQ512AVAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512AVAL 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 S912XEQ512AVAL?
For technical support, including S912XEQ512AVAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512AVAL requirements.
6.How does Aetrix verify that S912XEQ512AVAL is sourced from the original manufacturer or authorized distributors?
All S912XEQ512AVAL 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 S912XEQ512AVAL meets industry standards.
7.What is the process for return or replacement of S912XEQ512AVAL?
All S912XEQ512AVAL units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512AVAL, 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 S912XEQ512AVAL part is unused and in its original packaging.
Return procedure for S912XEQ512AVAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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