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NXP Semiconductors S912XET512J3VALR
- Part No.:
- S912XET512J3VALR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XET512J3VALR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,082
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Product details
Overview
S912XET512J3VALR from NXP Semiconductors (formerly Freescale) is a 16-bit automotive microcontroller featuring the CPU12X core, 512KB Flash, 32KB RAM, and integrated MSCAN, XGATE co-processor, and Memory Protection Unit (MPU). It operates at up to 50MHz bus frequency with ECC-protected Flash, supports -40°C to 125°C ambient operation, and targets body control modules requiring robust CAN/LIN communication and real-time I/O control.
For engineers reviewing the S912XET512J3VALR datasheet, S912XET512J3VALR pinout, S912XET512J3VALR application, or S912XET512J3VALR equivalent, key selection criteria include its 144-pin LQFP package, dual ATD converters (8/10/12-bit, 16-channel), 4 CAN modules, 3 SPI interfaces, and XGATE-enabled FULL-CAN offload capability - all validated for automotive AEC-Q100 Grade 1 compliance.
Technical Context
The S912XET512J3VALR implements the CPU12X 16-bit core with enhanced indexed addressing and large data segment access independent of PPAGE. Its XGATE co-processor runs at 100 MIPS, handles full CAN mailbox management, and executes LIN master/slave protocols without CPU intervention.
System integrity is enforced via an 8-region MPU with 8-byte granularity, Flash ECC (1-bit correction / 2-bit detection), and dual-voltage regulator architecture enabling separate I/O and core supply filtering. The CRG includes a frequency-modulated IPLL for EMC reduction and fast STOP-mode wake-up.
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 with ECC (64 data + 8 syndrome bits); provides single-bit fault correction and double-bit fault detection during read/write operations. |
| RAM | 32 KB on-chip SRAM; supports zero-wait-state access for peripherals and memory across full 16-bit data paths. |
| Operating Voltage | 3.3 V ±5% to 5.0 V +10%; dual-supply architecture separates internal regulator and I/O rails for optimized EMC filtering. |
| Temperature Range | -40°C to 125°C; qualified per AEC-Q100 Grade 1 for under-hood automotive applications including body controllers and gateways. |
| Bus Frequency | 50 MHz maximum CPU bus frequency; enables deterministic real-time response in time-critical automotive functions. |
| XGATE Performance | 100 MIPS RISC co-processor; handles MSCAN mailboxes, LIN protocol stacks, and SPI/SCI transfers autonomously to free main CPU. |
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 core, analog subsystem, and XGATE; enable independent noise filtering and voltage regulation. |
| VSS, VSSA, VSSX | Ground Returns | Separate ground planes for digital, analog, and XGATE domains minimize coupling noise in mixed-signal operation. |
| RESET | Active-Low Reset Input | Asynchronous reset with internal pull-up; triggers POR, COP timeout, or MPU violation recovery sequences. |
| CRGCLK, EXTAL, XTAL | Oscillator Interface | Supports 4–16 MHz crystal (Pierce mode) or 2–40 MHz full-swing crystal; feeds CRG for IPLL multiplication and clock monitoring. |
| CAN0_TX, CAN0_RX | CAN Transceiver Interface | Differential signal pair for CAN0 channel; compatible with ISO 11898-2 transceivers and supports bit rates up to 1 Mbps. |
| PORTH[7:0] | General-Purpose I/O | 8-bit port with configurable pull-up/down, hysteresis, and drive strength; supports edge-sensitive wake-up from STOP/WAIT modes. |
Key Features
| Feature | Design Value |
|---|---|
| Memory Protection Unit (MPU) | 8 programmable address regions with 8-byte granularity; enforces no-write/no-execute policies and triggers non-maskable interrupt on violation. |
| Enhanced MSCAN Module | 4 independent CAN controllers supporting CAN 2.0A/B; with 5 receive buffers, 3 prioritized transmit buffers, and FULL-CAN offload via XGATE. |
| Emulated EEPROM (EEE) | 4 KB D-Flash-based EEE with automated file handling; retains valid data in buffer RAM on reset and supports cancellation of pending writes. |
| ATD Converter | Two independent 8/10/12-bit ADCs with 16-channel multiplexer; achieves 3 µs 10-bit conversion time and supports analog wake-up in low-power modes. |
| PWM Module | 8-channel 8-bit or 4-channel 16-bit PWM with center/left-aligned outputs, programmable clock source, and emergency shutdown input. |
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 system controller executing body domain logic, managing CAN/LIN communication, and driving power stages via PWM and GPIO. Use Value: XGATE offloads CAN message handling and LIN protocol timing, freeing CPU for application-layer decision-making while maintaining <100 µs response latency. |
Use Scenario: Protocol translation and message routing between high-speed CAN-FD backbone and low-speed LIN subnetworks in distributed ECUs. IC Role / Device Role / Timing Role: Real-time gateway processor with concurrent CAN0/CAN1/CAN2/CAN4 reception and LIN SCI-based slave emulation. Use Value: Dual ATD inputs monitor bus voltage levels; 4 CAN modules enable simultaneous multi-bus arbitration and filtering without external bridge ICs. |
| Chassis Domain Controller | Smart Junction Box |
|
Use Scenario: Integration of brake light control, hazard flasher sequencing, and turn signal diagnostics in compact junction boxes. IC Role / Device Role / Timing Role: Safety-critical timing controller using RTI and PIT for cyclic task scheduling and API for extended sleep wake-up intervals. Use Value: MPU isolates safety-critical PWM output registers from application code; ECC-protected Flash ensures firmware integrity over 15+ year vehicle lifetime. |
Use Scenario: Power distribution and load monitoring unit managing fused circuits for headlights, fog lamps, and auxiliary accessories. IC Role / Device Role / Timing Role: High-reliability I/O manager with 119 GPIO pins, configurable drive strength, and hysteresis-enabled analog sensing of current shunts. Use Value: 144-pin LQFP provides sufficient I/O density without BGA assembly complexity; on-chip voltage regulator eliminates need for external LDOs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEQ512MALR | Same 512KB Flash, 32KB RAM, and 144-pin LQFP package; lacks XGATE co-processor and MPU; only 3 CAN modules. | Targeted at cost-sensitive body modules where FULL-CAN offload and memory protection are not required. | Select when CAN throughput and security features are secondary to BOM cost reduction. |
| S912XEP512J3MALR | Same family, 512KB Flash, but 208-pin MAPBGA package; adds 5th CAN module, 8-channel ATD, and 1MB-capable memory map extension. | Suitable for higher-complexity gateways requiring expanded I/O and additional CAN channels. | Choose when board space allows BGA packaging and system demands >4 CAN interfaces or >119 GPIOs. |
Compared with S912XET512J3VALR, MC9S12XEQ512MALR reduces real-time offload capability and system integrity features, while S912XEP512J3MALR increases I/O count and CAN capacity at the cost of package complexity and thermal management overhead.
Availability
S912XET512J3VALR is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, chassis domain controllers, and smart junction boxes requiring stable component supply across extended production lifecycles.
Supply support for S912XET512J3VALR 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 was designed specifically for automotive body electronics and gateway systems, emphasizing functional safety, CAN/LIN protocol offload, and long-term reliability in harsh environments.
FAQ
What is the maximum operating temperature range certified for S912XET512J3VALR?
The S912XET512J3VALR is qualified for operation from -40°C to +125°C ambient temperature and meets AEC-Q100 Grade 1 requirements. This rating applies specifically to the J3 suffix variant and is verified per Freescale's qualification test plan for automotive under-hood applications. The device maintains full functionality-including Flash ECC, XGATE execution, and CAN timing-across this full range.
Does S912XET512J3VALR support full CAN protocol offload using XGATE?
Yes, the S912XET512J3VALR supports FULL-CAN capability when used with its integrated MSCAN modules and XGATE co-processor. XGATE handles mailbox management, identifier filtering, and message transmission/reception independently of the CPU, enabling deterministic CAN throughput up to 1 Mbps across all four CAN channels without CPU polling or interrupt overhead.
What Flash memory protection mechanisms are implemented in S912XET512J3VALR?
The S912XET512J3VALR implements dual-layer Flash protection: ECC with 64 data + 8 syndrome bits for 1-bit correction and 2-bit detection, plus a Memory Protection Unit (MPU) that defines up to 8 address regions with no-write/no-execute attributes. Violations trigger a non-maskable interrupt, allowing secure firmware update validation and runtime memory access control.
Is external memory interfacing supported on S912XET512J3VALR?
Yes, the S912XET512J3VALR supports non-multiplexed external bus interfacing via dedicated chip select lines, wait-state generators, and EWAIT signaling - but only in the 144-pin LQFP package variant. This enables glue-less connection to asynchronous SRAM, NOR Flash, or FPGA peripherals without address/data multiplexing or external latch logic.
How many analog-to-digital converter (ATD) modules does S912XET512J3VALR include?
The S912XET512J3VALR integrates two independent ATD modules, each supporting 8/10/12-bit resolution, 16-channel multiplexing, and 3 µs 10-bit conversion time. Both modules feature internal oscillators for operation in STOP mode and analog comparison wake-up capability - critical for battery-powered sensor monitoring in automotive body systems.
S912XET512J3VALR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 112-LQFP
- Series:
- HCS12X
- Packaging:
- Tape & Reel (TR)
- 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:
S912XET512J3VALR FAQ
1.How can I place an order for S912XET512J3VALR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XET512J3VALR 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 S912XET512J3VALR reliable?
The price and inventory of S912XET512J3VALR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XET512J3VALR is usually 5 days.
3.What payment methods are accepted for S912XET512J3VALR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XET512J3VALR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XET512J3VALR?
S912XET512J3VALR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XET512J3VALR 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 S912XET512J3VALR?
For technical support, including S912XET512J3VALR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XET512J3VALR requirements.
6.How does Aetrix verify that S912XET512J3VALR is sourced from the original manufacturer or authorized distributors?
All S912XET512J3VALR 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 S912XET512J3VALR meets industry standards.
7.What is the process for return or replacement of S912XET512J3VALR?
All S912XET512J3VALR units undergo pre-shipment inspection (PSI). If there is an issue with S912XET512J3VALR, 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 S912XET512J3VALR part is unused and in its original packaging.
Return procedure for S912XET512J3VALR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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