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NXP Semiconductors S912XEQ512BCALR
- Part No.:
- S912XEQ512BCALR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 112-LQFP
- Datasheet:
-
S912XEQ512BCALR.pdf
- Description:
- IC MCU 16BIT 512KB FLASH 112LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,940
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Product details
Overview
S912XEQ512BCALR 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. It delivers deterministic real-time control for body electronics with CAN/LIN gateway functionality, operating across -40°C to 125°C.
For engineers reviewing the S912XEQ512BCALR datasheet, S912XEQ512BCALR pinout, S912XEQ512BCALR application, or S912XEQ512BCALR equivalent, key selection criteria 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 S912XEQ512BCALR implements a 16-bit CPU12X core with full MC9S12 instruction set compatibility (excluding five fuzzy instructions), executing at up to 50 MHz bus frequency. Its XGATE co-processor runs at 100 MHz and handles peripheral I/O-including full CAN mailbox management-without CPU intervention.
System integrity is enforced via an 8-region Memory Protection Unit (MPU), Flash ECC (1-bit correction / 2-bit detection), and supervisor/user mode separation. The device supports multiple low-power modes (STOP/WAIT), wake-up via 24 configurable edge-sensitive pins, and features a spread-spectrum IPLL for reduced EMC emissions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | CPU12X 16-bit core, compatible with MC9S12 ISA (no MEM/WAV/REV instructions), enabling legacy code reuse. |
| Flash Memory | 512 KB Flash with ECC (64 data + 8 syndrome bits), supporting single-bit correction and double-bit detection per word. |
| RAM | 32 KB on-chip RAM, accessible without wait states for all peripherals and memory operations. |
| ADC | Two independent ATD modules, each with 8 input channels and selectable 8/10/12-bit resolution; 3 µs 10-bit conversion time. |
| CAN Interfaces | Four MSCAN modules (CAN0, CAN1, CAN2, CAN4), CAN 2.0A/B compliant, up to 1 Mbps bit rate, with FULL-CAN capability when paired with XGATE. |
| SCI Modules | Six serial communication interfaces (SCI0–SCI5), supporting LIN master/slave operation, IrDA RZI format, and break-detect for diagnostics. |
| Operating Temp | -40°C to +125°C ambient range, qualified for under-hood automotive applications requiring extended thermal robustness. |
| Supply Voltage | 3.3 V ±5% / +10% to 5.0 V +10%, with separate VREG and I/O supplies for optimized EMC filtering. |
Pinout & Package
Package: 144-pin LQFP (20 mm × 20 mm, 0.5 mm pitch, case no 918-03). Non-multiplexed external bus interface available in this package option.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VDDA, VDDPLL | Power supply inputs | Dedicated domains for core logic (VDD), analog (VDDA), and PLL (VDDPLL); enable independent filtering and noise isolation. |
| VSS, VSSA, VSSPLL | Ground returns | Separate ground planes per supply domain reduce coupling and improve ADC/SPI/CAN signal integrity. |
| RESET | Active-low reset input | Asynchronous, Schmitt-triggered input supporting external reset assertion and internal POR/LVD reset generation. |
| MODB, MODA | Mode configuration pins | Set boot mode (e.g., normal, BDM, special test) at power-on; latched during reset sequence. |
| XTAL, EXTAL | Crystal oscillator terminals | Support 4–16 MHz Pierce crystal (OSC_LCP) or full-swing 2–40 MHz crystal; internal transconductance optimized for startup margin. |
| PORTA–PORTP | General-purpose I/O ports | Up to 119 GPIOs total; ports J/H/P support edge-sensitive wake-up from STOP/WAIT; configurable pull-up/down and drive strength. |
| CAN0TX, CAN0RX | CAN0 differential transceiver signals | Direct connection to external CAN transceiver; compatible with ISO 11898-2 physical layer. |
| SCI0TX, SCI0RX | SCI0 serial data lines | Full-duplex UART interface; supports LIN physical layer via software-controlled baud rate and break detection. |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | 100 MIPS RISC engine handling CAN/LIN messaging, SPI transfers, and ATD triggers autonomously-freeing CPU for application logic. |
| Memory Protection Unit (MPU) | Eight programmable address regions with 8-byte granularity; enforces no-execute/no-write attributes and generates NMI on violation-critical for ASIL-B partitioning. |
| ECC-protected Flash | 64-bit data + 8-bit syndrome per word enables real-time single-bit error correction and double-bit fault detection during program execution. |
| Enhanced ATD converters | Two independent 8/10/12-bit ADCs with internal oscillator support for conversions in STOP mode and analog-compare wake-up capability. |
| IPLL with spread spectrum | Internally filtered phase-locked loop with configurable frequency modulation reduces peak EMI emissions by spreading clock energy across a narrow band. |
| Background Debug (BDM) | Single-wire interface supporting non-intrusive memory access, flash programming, and security lock/unlock-enabling field firmware updates. |
Applications
| Body Controller | Gateway Module |
|---|---|
|
Use Scenario: Centralized control of lighting, door locks, window lifts, and HVAC actuators in modern vehicle body electronics. IC Role / Device Role / Timing Role: Primary MCU managing PWM-driven power outputs, reading analog sensor inputs (temperature, position), and coordinating LIN slave nodes. Use Value: Integrated 8-channel PWM, dual ATD, and 4 CAN interfaces eliminate external drivers and reduce BOM count while meeting <100 µs response latency requirements. |
Use Scenario: Protocol translation and message routing between high-speed CAN backbone (powertrain/chassis) and low-speed LIN clusters (seats/mirrors). IC Role / Device Role / Timing Role: Real-time bridge MCU using XGATE to offload CAN/LIN frame assembly/disassembly and buffer management. Use Value: FULL-CAN capability with >32 mailboxes (via XGATE) and six SCI modules enable concurrent multi-bus operation without CPU scheduling overhead. |
| Roof Module | Seat Control Unit |
|
Use Scenario: Sunroof, panoramic roof, and ambient lighting control with motor position feedback and touch-sensing integration. IC Role / Device Role / Timing Role: Safety-aware controller monitoring hall-effect sensors and current sense for anti-pinch protection and smooth motion profiles. Use Value: MPU-enforced memory isolation separates safety-critical motor control code from UI logic; ECC Flash ensures firmware integrity over 15-year vehicle lifetime. |
Use Scenario: Driver/passenger seat adjustment with memory presets, heating, ventilation, and posture sensing. IC Role / Device Role / Timing Role: Mixed-signal controller acquiring thermistor and potentiometer data, driving H-bridge motors, and communicating via LIN to body domain controller. Use Value: On-chip 12-bit ATD with internal reference and 8-channel multiplexer eliminates external ADC; 24 wake-up capable pins support ultra-low-power standby. |
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 third ATD module and 8-channel ECT vs. S912XEQ512BCALR's dual ATD and 4-channel ECT. | Targeted at higher-integration body controllers requiring larger code footprint and more timer resources (e.g., multi-zone climate control). | Select when >512 KB Flash, additional I/O, or expanded ECT/ATD channel count is required; not pin-compatible due to 208-pin MAPBGA packaging. |
| SPC560B50L5 | 32-bit Power Architecture core, 512 KB Flash, 48 KB RAM, 3x CAN FD, 4x LIN; includes hardware CRC, DMA, and ASIL-B certified safety library. | Designed for next-gen automotive ECUs needing CAN FD bandwidth, functional safety certification, and higher compute throughput. | Choose for new designs targeting ISO 26262 ASIL-B compliance and future-proofing with CAN FD; requires PCB redesign and toolchain migration. |
Compared with MC9S12XEP100MAG, S912XEQ512BCALR offers identical peripheral architecture in a smaller 144-pin LQFP package with lower cost and power-ideal for volume body modules. Against SPC560B50L5, it provides proven S12X ecosystem compatibility and simpler qualification path, though without CAN FD or certified safety features.
Availability
S912XEQ512BCALR is available at Aetrix Electronics and suitable for automotive body control units, gateway modules, roof systems, and seat control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 1 qualification.
Supply support for S912XEQ512BCALR 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 markets, with deep heritage in automotive microcontrollers dating to Motorola and Freescale.
The S912XEQ512BCALR belongs to the S12XE family-a 16-bit automotive MCU line designed specifically for cost-sensitive, high-reliability body electronics requiring enhanced system integrity (MPU/ECC), real-time responsiveness (XGATE), and CAN/LIN protocol support.
FAQ
What is the maximum bus frequency supported by the S912XEQ512BCALR?
The S912XEQ512BCALR supports a maximum CPU bus frequency of 50 MHz and an XGATE bus frequency of 100 MHz. These frequencies are achieved using the internal IPLL with external crystal input (4–16 MHz), and the device maintains full performance across its specified voltage (3.3 V–5.0 V) and temperature (-40°C to +125°C) ranges. The S912XEQ512BCALR does not require external clock dividers or buffers to sustain these speeds.
Does the S912XEQ512BCALR support CAN FD or only classical CAN?
The S912XEQ512BCALR supports only classical CAN 2.0A/B protocols-not CAN FD. Its four MSCAN modules are fully compliant with ISO 11898-1, offering programmable bit rates up to 1 Mbps, standard/extended identifiers, and FULL-CAN capability when coordinated with the XGATE co-processor. CAN FD functionality requires newer architectures such as NXP's S32K or SPC5 families.
How many analog-to-digital converter (ATD) modules does the S912XEQ512BCALR include?
The S912XEQ512BCALR includes two independent ATD modules. Each supports 8/10/12-bit resolution, 8 analog input channels, and internal oscillator operation-enabling conversions during STOP mode. Total analog channel count is 16, with shared multiplexer and configurable sample-and-hold timing. This matches the specification shown in Table 1 of the MC9S12XEPB Product Brief for the "9S12XEQ512" derivative.
Is the S912XEQ512BCALR pin-compatible with other S12XE family members?
The S912XEQ512BCALR in 144-pin LQFP is pin-compatible with other S12XE derivatives offered in the same package, including S912XEQ384 and S912XET256. Pin assignments for power, reset, clocks, CAN, SCI, and GPIOs are consistent across these variants. However, it is not pin-compatible with 208-pin MAPBGA or 112-pin LQFP versions due to differing pin counts and signal mappings.
What debug interface does the S912XEQ512BCALR use, and is it supported by modern tools?
The S912XEQ512BCALR uses the Background Debug Mode (BDM) single-wire interface, which remains fully supported by NXP's S32DS IDE (with legacy S12X plugin), P&E Micro's Multilink Universal FX, and iSYSTEM winIDEA. While CodeWarrior for S12X is discontinued, validated toolchains-including GCC-based builds and open-source GDB+OpenOCD configurations-are documented in NXP's S12XE reference manuals and community forums.
S912XEQ512BCALR 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XEQ512BCALR FAQ
1.How can I place an order for S912XEQ512BCALR through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XEQ512BCALR 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 S912XEQ512BCALR reliable?
The price and inventory of S912XEQ512BCALR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XEQ512BCALR is usually 5 days.
3.What payment methods are accepted for S912XEQ512BCALR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XEQ512BCALR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XEQ512BCALR?
S912XEQ512BCALR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XEQ512BCALR 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 S912XEQ512BCALR?
For technical support, including S912XEQ512BCALR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XEQ512BCALR requirements.
6.How does Aetrix verify that S912XEQ512BCALR is sourced from the original manufacturer or authorized distributors?
All S912XEQ512BCALR 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 S912XEQ512BCALR meets industry standards.
7.What is the process for return or replacement of S912XEQ512BCALR?
All S912XEQ512BCALR units undergo pre-shipment inspection (PSI). If there is an issue with S912XEQ512BCALR, 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 S912XEQ512BCALR part is unused and in its original packaging.
Return procedure for S912XEQ512BCALR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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