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NXP Semiconductors S912XEQ384F0CAL
- Part No.:
- S912XEQ384F0CAL
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ384F0CAL.pdf
- Description:
- IC MCU 16BIT 384KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,529
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Product details
Overview
S912XEQ384F0CAL 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 requiring ASIL-B–capable system integrity features including MPU, ECC, and supervisor mode.
For engineers reviewing the S912XEQ384F0CAL datasheet, S912XEQ384F0CAL pinout, S912XEQ384F0CAL application, or S912XEQ384F0CAL equivalent, key selection criteria include its 144-pin LQFP package, dual ATD converters (8/10/12-bit, 16-channel), 6 MSCAN modules, 24 KB RAM, and -40°C to 125°C operating range - all validated for automotive body electronics and gateway systems.
Technical Context
The S912XEQ384F0CAL implements a 16-bit CPU12X core running at up to 50 MHz bus frequency, with an independent XGATE co-processor operating at 100 MHz to offload CAN, LIN, SPI, and SCI communications. Its Memory Protection Unit defines eight address regions with 8-byte granularity and enforces no-write/no-execute attributes.
It integrates ECC-enabled Flash (1-bit correction / 2-bit detection), emulated EEPROM (4 KB D-Flash), and dual ATD modules supporting 3 µs 10-bit conversion time with internal oscillator operation in STOP mode. The device supports five CAN modules (CAN0–CAN4), six SCI interfaces, three SPI modules, and two IIC buses - all accessible via XGATE-driven DMA-like transfers without CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core compatible with MC9S12 instruction set (excluding five fuzzy instructions); enables legacy code reuse with enhanced addressing. |
| Flash Memory | 384 KB with ECC (64 data + 8 syndrome bits); provides single-bit fault correction and double-bit fault detection for ASIL-B compliance. |
| RAM | 24 KB SRAM; supports real-time buffering for XGATE-managed CAN/LIN message queues and sensor data acquisition. |
| Operating Voltage | 3.3 V ±5% to 5.0 V +10%; allows direct interface with 3.3 V and 5 V automotive subsystems without level-shifting. |
| Temperature Range | -40°C to 125°C; qualified for under-hood and body control unit environments per AEC-Q100 Grade 0. |
| Bus Frequency | 50 MHz CPU bus / 100 MHz XGATE bus; enables deterministic real-time response for safety-critical timing tasks. |
| ADC Resolution | 8/10/12-bit ATD with 16-channel multiplexer and 3 µs 10-bit conversion time; supports high-fidelity analog sensing in lighting and HVAC control. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no 918-03). Pinout validated per MC9S12XE Data Sheet "Port Availability by Package Option" table for 144LQFP variant.
| 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. |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; initiates power-on reset, COP timeout, or illegal address recovery sequence. |
| XTAL, EXTAL | Crystal oscillator terminals | Support 4–16 MHz Pierce oscillator; provide low-jitter clock source for CRG and IPLL frequency synthesis. |
| CAN0_TX, CAN0_RX | CAN0 differential transceiver pins | Direct connection to external CAN transceiver; support 1 Mbps bit rate with programmable sample point and loopback test mode. |
| SCI0_TX, SCI0_RX | SCI0 serial interface pins | Full-duplex NRZ UART interface; configurable for LIN physical layer (break detect, sync field, checksum handling). |
| ATD0[0..7], ATD1[0..7] | Analog input channels | 16 total analog inputs across two ATD modules; support simultaneous sampling and wake-up on voltage threshold crossing. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | 100 MIPS RISC engine programmable in C; handles full CAN mailbox management and LIN frame scheduling without CPU load. |
| Memory Protection Unit (MPU) | Eight configurable address regions with 8-byte granularity; enforces no-write/no-execute policies and triggers non-maskable interrupt on violation. |
| ECC on Flash | 64-bit data + 8-bit syndrome encoding; corrects single-bit errors and detects double-bit faults during read/write cycles for functional safety. |
| Enhanced ATD | Two independent converters with 3 µs 10-bit conversion time, internal oscillator for STOP-mode operation, and analog comparator wake-up. |
| MSCAN modules | Six CAN controllers (CAN0–CAN4 + CANx); support CAN 2.0A/B, 0–8 byte payloads, flexible ID filtering, and hardware time stamping. |
Applications
| Body Control Module (BCM) | Vehicle Gateway |
|---|---|
|
Use Scenario: Centralized control of door locks, interior lighting, window lifts, and HVAC actuators in modern passenger vehicles. IC Role / Device Role / Timing Role: Primary MCU executing body domain software stack, managing PWM-driven loads, reading analog sensors, and routing CAN/LIN messages. Use Value: XGATE offloads CAN/LIN protocol handling while CPU12X executes application logic; MPU and ECC ensure runtime integrity during EMI-heavy cabin environments. |
Use Scenario: Protocol translation between high-speed CAN-FD backbone and low-speed LIN subnetworks in distributed vehicle architectures. IC Role / Device Role / Timing Role: Real-time bridge MCU with six CAN modules and six SCI interfaces, performing message filtering, prioritization, and retransmission. Use Value: Dual ATD modules monitor power rail health; API timer provides precise 0.2 ms–13 s wake-up intervals for low-power gateway sleep/wake cycles. |
| Front Lighting Control | Rear Occupancy Detection |
|
Use Scenario: Adaptive front-lighting system (AFS) controlling LED matrix headlamps with dynamic beam shaping and diagnostics. IC Role / Device Role / Timing Role: Safety-critical controller managing 8-channel PWM outputs, monitoring photodiode feedback, and communicating over CAN. Use Value: 12-bit ATD resolution enables precise ambient light and temperature compensation; ECC-protected Flash ensures firmware integrity after OTA updates. |
Use Scenario: Seat occupancy sensing using capacitive or pressure-based analog inputs in rear seating rows for airbag deployment logic. IC Role / Device Role / Timing Role: Analog acquisition node converting multi-channel sensor data and transmitting status over LIN to central airbag controller. Use Value: ATD wake-up on threshold crossing reduces system power consumption; emulated EEPROM stores calibration offsets across ignition cycles. |
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 non-multiplexed external bus and 8-channel ATD. | Targeted at high-end gateways requiring external memory expansion and higher I/O count (152 pins). | Select when >384 KB Flash or external memory interface is required; not pin-compatible with S912XEQ384F0CAL. |
| S912XEQ512F0MAL | 512 KB Flash, 32 KB RAM, same 144-pin LQFP package; identical peripheral set and XGATE capability. | Drop-in upgrade path for applications needing larger program space while retaining PCB layout and thermal profile. | Valid pin-to-pin replacement with increased Flash/RAM; requires only firmware recompilation and Flash programming update. |
Compared with S912XEQ384F0CAL, MC9S12XEP100MAG offers greater memory and I/O but requires board redesign due to MAPBGA packaging, whereas S912XEQ512F0MAL provides seamless capacity scaling within the same 144LQFP footprint and thermal envelope.
Availability
S912XEQ384F0CAL is available at Aetrix Electronics and suitable for automotive body control modules, vehicle gateways, front lighting systems, and rear occupancy detection requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualification.
Supply support for S912XEQ384F0CAL 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep heritage in automotive MCUs dating back to Motorola and Freescale.
The S12XE family - including S912XEQ384F0CAL - was designed specifically for automotive body electronics and gateway systems demanding enhanced system integrity, functional safety (ASIL-B), and real-time communication offload via XGATE.
FAQ
What is the maximum bus frequency supported by the S912XEQ384F0CAL?
The S912XEQ384F0CAL supports a maximum CPU bus frequency of 50 MHz and an XGATE co-processor bus frequency of 100 MHz. This enables deterministic real-time execution for automotive control loops and communication stacks. The internal IPLL clock generator provides stable frequency multiplication without external components, and the CRG module supports spread-spectrum modulation to reduce EMC emissions. All timing specifications are validated across the full -40°C to 125°C operating range.
Does the S912XEQ384F0CAL include hardware error correction for Flash memory?
Yes, the S912XEQ384F0CAL includes Error Correction Code (ECC) on its 384 KB Flash memory, using 64 data bits plus 8 syndrome bits per word. This provides single-bit error correction and double-bit error detection during read and write operations - a critical feature for ASIL-B compliance in automotive applications. The ECC logic operates transparently in hardware and does not require software intervention or additional CPU cycles.
How many CAN modules are integrated into the S912XEQ384F0CAL?
The S912XEQ384F0CAL integrates six MSCAN modules (CAN0 through CAN4 plus one additional CAN channel), supporting CAN 2.0A/B protocols with programmable bit rates up to 1 Mbps. Each module includes five receive buffers with FIFO storage, three prioritized transmit buffers, and flexible identifier filtering (2×32-bit, 4×16-bit, or 8×8-bit). When used with the XGATE co-processor, the device achieves FULL-CAN capability with virtually unlimited mailbox management.
What analog-to-digital capabilities does the S912XEQ384F0CAL provide?
The S912XEQ384F0CAL includes two independent ATD modules supporting 8/10/12-bit resolution, a 16-channel analog multiplexer, and a 3 µs conversion time for 10-bit results. Both modules operate with internal oscillators during STOP mode and support wake-up on analog comparison thresholds. They also provide left/right-aligned, signed/unsigned output formats and external/internal trigger sources - enabling precise sensor interfacing in lighting, HVAC, and occupancy detection systems.
Is the S912XEQ384F0CAL pin-compatible with other S12XE family members?
The S912XEQ384F0CAL is pin-compatible with other 144-pin LQFP variants in the S12XE family, including S912XEQ512F0MAL and S912XET256F0MAL. All share identical mechanical dimensions, pinout mapping, and power/ground assignments. However, peripheral enablement (e.g., number of CAN/SCI modules) and memory sizes differ by derivative - verified in Table 1 of the MC9S12XE Family Product Brief Rev. 9. No PCB changes are required when migrating within the 144LQFP footprint.
S912XEQ384F0CAL 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:
- 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 16x12b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ384F0CAL FAQ
1.How can I place an order for S912XEQ384F0CAL through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ384F0CAL 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 S912XEQ384F0CAL reliable?
The price and inventory of S912XEQ384F0CAL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ384F0CAL is usually 5 days.
3.What payment methods are accepted for S912XEQ384F0CAL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ384F0CAL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ384F0CAL?
S912XEQ384F0CAL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ384F0CAL 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 S912XEQ384F0CAL?
For technical support, including S912XEQ384F0CAL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ384F0CAL requirements.
6.How does Aetrix verify that S912XEQ384F0CAL is sourced from the original manufacturer or authorized distributors?
All S912XEQ384F0CAL 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 S912XEQ384F0CAL meets industry standards.
7.What is the process for return or replacement of S912XEQ384F0CAL?
All S912XEQ384F0CAL units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ384F0CAL, 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 S912XEQ384F0CAL part is unused and in its original packaging.
Return procedure for S912XEQ384F0CAL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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