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Home > Products > Integrated Circuits (ICs) > Embedded > Microcontrollers

NXP Semiconductors S912XEQ512F1VAL

Name: S912XEQ512F1VAL
Brand: NXP Semiconductors
SKU: S912XEQ512F1VAL
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S912XEQ512F1VAL

Manufacturer:: NXP Semiconductors

Category:: Microcontrollers

Package:: 112-LQFP

Datasheet:: S912XEQ512F1VAL.pdf

Description:: IC MCU 16BIT 512KB FLASH 112LQFP

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Product details

Overview

S912XEQ512F1VAL 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 converter. It operates at up to 50 MHz bus frequency and supports -40°C to 125°C ambient temperature - deployed in body control modules for CAN/LIN gateway functions, power driver control, and sensor interfacing.

For engineers reviewing the S912XEQ512F1VAL datasheet, S912XEQ512F1VAL pinout, S912XEQ512F1VAL application, or S912XEQ512F1VAL equivalent, key selection considerations include its 144-pin LQFP package, dual ATD converters (8/10/12-bit, 8-channel each), 4 CAN modules, 6 SCI interfaces, and MPU-enabled system integrity for ASIL-B–aligned automotive designs.

Technical Context

The S912XEQ512F1VAL implements a 16-bit CPU12X core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), executing 16-bit wide accesses without wait states across all peripherals and memories. Its XGATE co-processor runs at 100 MIPS, handles full CAN messaging 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 regulator architecture enabling separate I/O and core supply filtering. The device uses an internal IPLL clock generator with spread-spectrum capability and supports wake-up from STOP mode via analog comparison or external edge-triggered I/O pins.

Key Specifications

Parameter	Value and Actual Design Meaning
CPU Core	CPU12X 16-bit core, compatible with MC9S12 ISA (no MEM/WAV/REV instructions), enables legacy code reuse with deterministic timing.
Flash Memory	512 KB with ECC: 64 data bits + 8 syndrome bits per word enable single-bit correction and double-bit detection for functional safety compliance.
RAM	32 KB SRAM: sufficient for real-time task stacks, XGATE buffers, and CAN mailbox descriptors in multi-bus gateway applications.
Operating Voltage	3.3 V ±5% / 5.0 V +10%: supports dual-rail automotive power domains and EMC-optimized filtering via separate VREG and I/O supplies.
Temperature Range	-40°C to 125°C: qualified for under-hood and body-control module placement per AEC-Q100 Grade 0 requirements.
Bus Frequency	50 MHz maximum CPU bus frequency: delivers deterministic interrupt latency and real-time response for time-critical body control tasks.
XGATE Performance	100 MIPS RISC co-processor: offloads CAN/LIN protocol handling, PWM generation, and data movement without CPU intervention.

Pinout & Package

Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no 918-03), RoHS-compliant, with non-multiplexed external bus interface support.

Pin/Terminal	Circuit Role	Design Meaning
VDD, VDDA, VDDX	Power Supply Inputs	Dedicated supplies for digital logic (VDD), analog circuitry (VDDA), and XGATE subsystem (VDDX) enable independent noise filtering and voltage regulation.
VSS, VSSA, VSSX	Ground Returns	Separate ground planes for digital, analog, and XGATE reduce coupling noise and improve ADC accuracy and CAN signal integrity.
RESET	Active-Low Reset Input	Asynchronous reset with internal pull-up; triggers POR, COP timeout, or MPU violation recovery sequences.
MODB, MODA	Mode Selection Inputs	Configure boot mode (internal Flash, background debug, or external memory) at power-on; latched during reset assertion.
XTAL, EXTAL	Crystal Oscillator Interface	Supports 4–16 MHz Pierce crystal for OSC_LCP; enables low-jitter clock source for IPLL multiplication and CAN bit timing accuracy.
CAN0_TX, CAN0_RX	CAN Transceiver Interface	Differential signaling pair for CAN0 controller; requires external transceiver (e.g., TJA1042) for physical layer compliance.
SCI0_TX, SCI0_RX	LIN/UART Serial Interface	Full-duplex NRZ interface supporting LIN 2.0 master/slave operation when paired with XGATE firmware.
ATD0[7:0]	Analog Input Channels	Eight dedicated analog inputs for ATD0 converter; support sensor monitoring (e.g., temperature, voltage, current) with 3 µs 10-bit conversion time.

Key Features

Feature	Design Value
Memory Protection Unit (MPU)	8 configurable address regions with 8-byte granularity; enforces no-write/no-execute policies and triggers NMI on violation - critical for ASIL-B software partitioning.
Enhanced XGATE Co-processor	Programmable in C, handles full CAN message scheduling, LIN frame assembly, and PWM updates autonomously - reduces CPU load by >70% in gateway use cases.
Flash ECC & Emulated EEPROM	Single-bit error correction and double-bit detection across 512 KB Flash; 4 KB D-Flash used as emulated EEPROM with automated wear leveling and atomic write semantics.
Multi-Channel ATD Converter	Two independent 8/10/12-bit ATD modules (8-channel each); internal oscillator allows conversion during STOP mode and wake-up on analog threshold crossing.
MSCAN Modules	Four fully compliant CAN 2.0A/B controllers (CAN0–CAN3); each supports 1 Mbps bit rate, 5 receive buffers with FIFO, and hardware timestamping for diagnostic traceability.

Applications

Body Control Module (BCM)	Gateway Controller
Use Scenario: Centralized vehicle body management including door lock actuation, interior lighting dimming, window lift control, and HVAC fan speed regulation. IC Role / Device Role / Timing Role: Primary MCU executing real-time control loops, managing CAN/LIN communication with door modules and sensors, and generating PWM for motor drivers. Use Value: 512 KB Flash stores multiple OEM-specific feature sets; MPU isolates safety-critical door-lock logic from infotainment-linked diagnostics.	Use Scenario: In-vehicle network bridge between high-speed powertrain CAN and low-speed body LIN networks, translating messages and enforcing security policies. IC Role / Device Role / Timing Role: Dual-role processor: CPU manages routing tables and diagnostics, while XGATE handles concurrent CAN/LIN frame reception/transmission with sub-100 µs latency. Use Value: Four CAN modules and six SCI interfaces enable simultaneous connection to chassis, infotainment, and telematics buses without external protocol translators.
Seat Position Controller	Roof Module Controller
Use Scenario: Motorized seat adjustment with position feedback, memory recall, and collision detection using Hall-effect sensors and current sensing. IC Role / Device Role / Timing Role: Real-time motion controller interfacing with 16-bit ECT timers for precise PWM phase control and ATD0/ATD1 for analog sensor acquisition. Use Value: 32 KB RAM buffers position profiles and fault logs; ECC-protected Flash ensures firmware integrity after over-the-air updates.	Use Scenario: Sunroof, panoramic roof, and ambient lighting control with rain sensor input, tilt detection, and RGB LED sequencing. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating I²C temperature/humidity, SPI-connected accelerometer, and analog rain sensor data via ATD. Use Value: 144-pin LQFP provides dedicated I/O for 25+ GPIOs with interrupt capability - enabling wake-up from WAIT mode on any roof event without CPU polling.

Body Control Module (BCM)

Gateway Controller

Use Scenario: Centralized vehicle body management including door lock actuation, interior lighting dimming, window lift control, and HVAC fan speed regulation.

IC Role / Device Role / Timing Role: Primary MCU executing real-time control loops, managing CAN/LIN communication with door modules and sensors, and generating PWM for motor drivers.

Use Value: 512 KB Flash stores multiple OEM-specific feature sets; MPU isolates safety-critical door-lock logic from infotainment-linked diagnostics.

Use Scenario: In-vehicle network bridge between high-speed powertrain CAN and low-speed body LIN networks, translating messages and enforcing security policies.

IC Role / Device Role / Timing Role: Dual-role processor: CPU manages routing tables and diagnostics, while XGATE handles concurrent CAN/LIN frame reception/transmission with sub-100 µs latency.

Use Value: Four CAN modules and six SCI interfaces enable simultaneous connection to chassis, infotainment, and telematics buses without external protocol translators.

Seat Position Controller

Roof Module Controller

Use Scenario: Motorized seat adjustment with position feedback, memory recall, and collision detection using Hall-effect sensors and current sensing.

IC Role / Device Role / Timing Role: Real-time motion controller interfacing with 16-bit ECT timers for precise PWM phase control and ATD0/ATD1 for analog sensor acquisition.

Use Value: 32 KB RAM buffers position profiles and fault logs; ECC-protected Flash ensures firmware integrity after over-the-air updates.

Use Scenario: Sunroof, panoramic roof, and ambient lighting control with rain sensor input, tilt detection, and RGB LED sequencing.

IC Role / Device Role / Timing Role: Sensor fusion hub aggregating I²C temperature/humidity, SPI-connected accelerometer, and analog rain sensor data via ATD.

Use Value: 144-pin LQFP provides dedicated I/O for 25+ GPIOs with interrupt capability - enabling wake-up from WAIT mode on any roof event without CPU polling.

Equivalent & Alternatives

The following parts are listed as comparable options for similar automotive microcontroller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MC9S12XEP100MAG	1 MB Flash, 64 KB RAM, 208-pin MAPBGA; adds fifth CAN module and 8-channel ECT vs. S912XEQ512F1VAL's 4 CAN and 4-channel ECT.	Targeted at premium vehicle gateways requiring higher memory density and expanded I/O for redundant bus architectures.	Select when >512 KB Flash or >32 KB RAM is required for AUTOSAR BSW stack or OTA update partitioning.
SPC560P50L5	32-bit Power Architecture core, 512 KB Flash, 48 KB RAM, dual CAN FD, integrated voltage regulator; lacks XGATE but offers hardware FPU and ASIL-D ready safety mechanisms.	Designed for next-gen ASIL-D powertrain and chassis control where deterministic floating-point math and ISO 26262 FMEDA support are mandatory.	Choose for new designs targeting ASIL-D certification; not drop-in due to architecture, toolchain, and pinout incompatibility.

Compared with MC9S12XEP100MAG, S912XEQ512F1VAL trades Flash capacity and CAN count for smaller footprint and lower cost in mid-tier BCMs; versus SPC560P50L5, it retains legacy S12 toolchain compatibility and deterministic XGATE offload but lacks CAN FD and ASIL-D hardware safety features.

Availability

S912XEQ512F1VAL is available at Aetrix Electronics and suitable for automotive body control modules, gateway controllers, seat position systems, and roof module applications requiring stable component supply, long-term lifecycle support, and AEC-Q100–qualified silicon.

Supply support for S912XEQ512F1VAL 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 markets, with leadership in automotive MCUs and radar technology.

The S12XE family - including S912XEQ512F1VAL - was designed to extend Freescale's 16-bit automotive MCU portfolio with enhanced system integrity (MPU, ECC, supervisor mode) while maintaining backward compatibility and cost efficiency for body electronics.

FAQ

What is the operating temperature range supported by the S912XEQ512F1VAL?

The S912XEQ512F1VAL is rated for operation from -40°C to 125°C, meeting AEC-Q100 Grade 0 requirements for under-hood and body-control module deployment. This extended range is enabled by its dual-voltage regulator architecture and thermally robust 144-pin LQFP package. The device maintains full functionality-including 50 MHz bus operation, CAN communication, and ATD conversion-across this entire range. S912XEQ512F1VAL also supports intermediate grades (-40°C to 85°C and -40°C to 105°C) depending on specific qualification batches.

Does the S912XEQ512F1VAL include hardware support for CAN FD?

No, the S912XEQ512F1VAL does not support CAN FD. It integrates four standard MSCAN modules compliant only with ISO 11898-1:2003 (CAN 2.0A/B), supporting data rates up to 1 Mbps with 8-byte payloads. CAN FD capability requires newer architectures such as NXP's S32K series or ST's SPC58. For S912XEQ512F1VAL, CAN message throughput is enhanced via XGATE co-processing, which handles full mailbox management and filtering without CPU overhead - but frame format and bit rate remain limited to classical CAN specifications.

How many analog-to-digital converter (ATD) modules does the S912XEQ512F1VAL integrate?

The S912XEQ512F1VAL integrates two independent ATD modules: ATD0 and ATD1. ATD0 supports 8 analog input channels with 8/10/12-bit resolution and a minimum 3 µs conversion time for 10-bit results; ATD1 provides 4 channels with identical resolution and timing. Both modules feature internal oscillators enabling conversions during STOP mode and wake-up on analog threshold crossing. This dual-ATD architecture allows concurrent sensor acquisition - for example, reading cabin temperature (ATD0) while monitoring motor current (ATD1) in a seat control application using S912XEQ512F1VAL.

Is the S912XEQ512F1VAL pin-compatible with other S12XE family members?

Yes, the S912XEQ512F1VAL is pin-compatible within the 144-pin LQFP variant of the S12XE family, including S912XEP768 and S912XET256. All share identical mechanical footprint, power/ground pin mapping, and core peripheral pinouts (e.g., CAN0_TX/RX, SCI0_TX/RX, XTAL/EXTAL). However, peripheral enablement differs: S912XEQ512F1VAL exposes 4 CAN modules and 6 SCI interfaces, whereas S912XET256 enables only 3 CAN and 2 SCI. Pin compatibility simplifies hardware reuse across derivatives, but firmware must validate module availability before initialization. S912XEQ512F1VAL is not pin-compatible with 208-pin MAPBGA or 80-pin QFP variants.

What debug interface does the S912XEQ512F1VAL support?

The S912XEQ512F1VAL supports the Background Debug Mode (BDM) interface via a single-wire connection, compatible with standard Freescale/NXP BDM debug probes (e.g., USB-ML-12, Multilink FX). This interface enables non-intrusive memory access, flash programming, breakpoint setting, and real-time register inspection. Additionally, the xDBG module provides four hardware comparators and a 64-entry trace buffer for advanced profiling - allowing engineers to capture instruction flow and bus transactions during runtime analysis of S912XEQ512F1VAL-based systems without requiring JTAG.

S912XEQ512F1VAL 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:

S912XEQ512F1VAL FAQ

1.How can I place an order for S912XEQ512F1VAL through Aetrix?

Please submit a Request for Quotation (RFQ) for S912XEQ512F1VAL 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 S912XEQ512F1VAL reliable?

The price and inventory of S912XEQ512F1VAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512F1VAL is usually 5 days.

3.What payment methods are accepted for S912XEQ512F1VAL?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512F1VAL transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S912XEQ512F1VAL?

S912XEQ512F1VAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S912XEQ512F1VAL 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 S912XEQ512F1VAL?

For technical support, including S912XEQ512F1VAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512F1VAL requirements.

6.How does Aetrix verify that S912XEQ512F1VAL is sourced from the original manufacturer or authorized distributors?

All S912XEQ512F1VAL 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 S912XEQ512F1VAL meets industry standards.

7.What is the process for return or replacement of S912XEQ512F1VAL?

All S912XEQ512F1VAL units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512F1VAL, 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 S912XEQ512F1VAL part is unused and in its original packaging.

Return procedure for S912XEQ512F1VAL:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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