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NXP Semiconductors S9S12VR48AF0VLF
- Part No.:
- S9S12VR48AF0VLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12VR48AF0VLF.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,694
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Product details
Overview
S9S12VR48AF0VLF from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12 microcontroller with integrated LIN physical layer transceiver, high-side and low-side drivers, on-chip 48 KB Flash, 4 KB RAM, and voltage regulator - designed for automotive body electronics control in 12 V systems requiring functional safety support and robust I/O drive capability.
For engineers reviewing the S9S12VR48AF0VLF datasheet, S9S12VR48AF0VLF pinout, S9S12VR48AF0VLF application, or S9S12VR48AF0VLF equivalent, key selection criteria include LINPHY compliance (SAE J2602), HSDRV/LSDRV current ratings, internal voltage regulation (5.0 V ±2%), Flash ECC protection, and 48-pin LQFP package compatibility with automotive PCB layout constraints.
Technical Context
The S9S12VR48AF0VLF implements the HCS12 CPU12 core with 16-bit data path and 24-bit addressing, executing instructions at up to 25 MHz bus clock derived from internal PLL or external crystal. It integrates dedicated hardware modules including LINPHY v2.0 compliant transceiver, 8-channel high-side driver (HSDRV) with overcurrent/thermal shutdown, and 4-channel low-side driver (LSDRV) with open-load detection.
Power management includes an on-chip linear voltage regulator (VREG) delivering stable 5.0 V to core logic and peripherals, plus independent 5.0 V supply for flash memory (VDDF). The CPMU supports multiple low-power modes (WAIT, STOP, P-STOP) with wake-up via LIN bus activity, external interrupt, or timer event - enabling energy-efficient operation in always-on vehicle subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit address space and 25 MHz max bus clock |
| Flash Memory | 48 KB on-chip Flash with ECC and 512-byte sector erase capability |
| RAM | 4 KB on-chip SRAM with retention in low-power modes |
| LIN Transceiver | Integrated SAE J2602-compliant LINPHY v2.0 with wake-up filtering and bus fault protection |
| High-Side Drivers | 8-channel HSDRV with 500 mA typical sink current per channel and thermal shutdown |
| Low-Side Drivers | 4-channel LSDRV with open-load detection and 1.5 A peak output current |
| Voltage Regulator | On-chip linear regulator supplying 5.0 V ±2% to core logic (VDD) and flash (VDDF) |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, automotive-grade (–40°C to +125°C ambient).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core power and ground | Supplies regulated 5.0 V to CPU and peripherals; requires local 100 nF decoupling |
| VDDF, VSS | Flash memory power | Dedicated 5.0 V supply for Flash module; isolated from core VDD for noise immunity |
| VSUP | Main battery input | Accepts 5.5–27 V DC input; powers internal VREG and HSDRV/LSDRV drivers |
| LINRX, LINTX | LIN bus interface | Differential LINPHY inputs/outputs compliant with SAE J2602; support wake-up via dominant pulse |
| HSD0–HSD7 | High-side driver outputs | Eight protected switch outputs capable of driving resistive/inductive loads up to 500 mA each |
| LSD0–LSD3 | Low-side driver outputs | Four open-drain outputs with programmable slew rate and open-load diagnostics |
| PORTP0–PORTP7 | General-purpose I/O | 8-bit parallel port with configurable pull-up/down, interrupt capability, and reduced-drive mode |
Key Features
| Feature | Design Value |
|---|---|
| LINPHY v2.0 integration | Eliminates external LIN transceiver IC, reducing BOM count and PCB area in body control modules |
| HSDRV thermal protection | Automatic shutdown and recovery during overload conditions prevents latch-up and ensures system reliability |
| On-chip 5.0 V VREG | Removes need for external LDO; supports single-supply design from 12 V battery rail |
| Flash ECC and CRC | Hardware error correction detects and corrects single-bit errors, meeting ASIL-B functional safety requirements |
| Background Debug (BDM) | Single-wire debug interface enables in-circuit programming and real-time trace without halting CPU operation |
Applications
| Body Control Module (BCM) | Smart Junction Box (SJB) |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, interior lighting, and mirror adjustment in modern vehicles. IC Role / Device Role / Timing Role: Main controller executing LIN slave node firmware, managing HSDRV/LSDRV actuator outputs, and monitoring battery voltage via BATS module. Use Value: Integrated LINPHY and drivers reduce component count by ≥3 ICs versus discrete solutions, lowering assembly cost and improving signal integrity. | Use Scenario: Power distribution and load switching for lighting, HVAC actuators, and comfort electronics in distributed architecture vehicles. IC Role / Device Role / Timing Role: High-side power switch controller with diagnostic feedback, coordinating with CAN gateway via SCI interface. Use Value: On-chip VREG and 8-channel HSDRV enable direct connection to 12 V battery, eliminating external regulators and discrete MOSFETs. |
| Seat Control Unit | Roof Module Controller |
Use Scenario: Motorized seat position adjustment with memory recall and heating element control. IC Role / Device Role / Timing Role: LIN master node commanding seat motor drivers while monitoring temperature and current via ADC channels. Use Value: 12-bit ADC with external trigger support enables precise current sensing for motor stall detection and thermal derating. | Use Scenario: Sunroof, panoramic roof, and ambient lighting control with rain sensor integration. IC Role / Device Role / Timing Role: Low-power LIN slave responding to gateway commands and managing PWM dimming for LED strips. Use Value: P-STOP mode draws <10 µA while maintaining LIN wake-up capability, extending battery life during vehicle sleep. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12VR64AF0VLF | 64 KB Flash, same pinout and peripheral set; higher code density for complex LIN cluster firmware | Required when application exceeds 48 KB Flash footprint (e.g., multi-node diagnostic stacks) | Select if future firmware expansion or dual-application partitioning is needed |
| SPC560B50L5 | 32-bit Power Architecture core, 512 KB Flash, no integrated LINPHY or HSDRV; requires external transceiver and drivers | Used in higher-performance body domain controllers where ASIL-B is required and software complexity justifies migration | Choose for scalable platform strategy beyond 16-bit limitations, accepting increased BOM and layout effort |
Compared with MC9S12VR64AF0VLF, the S9S12VR48AF0VLF offers identical peripheral integration and package compatibility but with 16 KB less Flash - suitable for cost-sensitive LIN slave nodes. Versus SPC560B50L5, it delivers lower system-level cost and smaller footprint due to integrated analog and power functions, albeit with constrained compute headroom.
Availability
S9S12VR48AF0VLF is available at Aetrix Electronics and suitable for automotive body electronics, smart junction boxes, and seat control units requiring stable component supply across extended product lifecycles and AEC-Q100 Grade 1 qualification.
Supply support for S9S12VR48AF0VLF 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 applications, with deep expertise in automotive microcontrollers and functional safety.
The S9S12VR family was developed specifically for cost-optimized, high-integration automotive body electronics - combining LIN communication, power switching, and regulation in a single AEC-Q100 qualified device to simplify ECU design and reduce system cost.
FAQ
What is the maximum operating temperature range for the S9S12VR48AF0VLF?
The S9S12VR48AF0VLF is qualified for automotive Grade 1 operation, with a specified ambient temperature range of –40°C to +125°C. This rating applies to all integrated functions including the HSDRV, LSDRV, LINPHY, and VREG modules, ensuring reliable performance in under-hood and cabin-mounted ECUs. Thermal derating curves for driver outputs are provided in Appendix D of the reference manual.
Does the S9S12VR48AF0VLF support LIN 2.2A protocol compliance?
Yes, the S9S12VR48AF0VLF integrates the S12LINPHYV2 module, which meets SAE J2602-2013 requirements - the standard referenced by LIN 2.2A conformance testing. Its LINPHY supports automatic baud rate detection, dominant timeout, and wake-up filtering per specification, and has been validated in NXP's certified LIN test lab. The S9S12VR48AF0VLF does not require external components to achieve full LIN 2.2A compliance.
How is Flash memory protected against corruption in the S9S12VR48AF0VLF?
The S9S12VR48AF0VLF implements hardware-based ECC (Error Correction Code) across its entire 48 KB Flash array, detecting and correcting all single-bit errors and detecting multi-bit errors during read operations. Additionally, the Flash module includes write-protection registers, secure boot vector locking, and CRC checksum support for user-defined sectors - collectively satisfying ASIL-B requirements for non-volatile memory integrity as defined in ISO 26262.
Can the S9S12VR48AF0VLF operate without an external crystal oscillator?
Yes, the S9S12VR48AF0VLF can operate using its internal RC oscillator (IRC) at 1 MHz nominal frequency, sufficient for basic LIN communication and low-speed I/O control. However, for full-spec LIN timing accuracy (±1.5% baud tolerance), the device must use either the external crystal (via EXTAL/XTAL pins) or the internal PLL locked to the IRC - both configurations are supported and detailed in Chapter 4 of the reference manual for the S9S12VR48AF0VLF.
What diagnostic capabilities does the S9S12VR48AF0VLF provide for its high-side drivers?
The S9S12VR48AF0VLF provides comprehensive HSDRV diagnostics including overcurrent detection (with fast shutdown and flag reporting), thermal shutdown with automatic recovery, open-load detection in OFF state, and short-to-battery detection. These are implemented in hardware and accessible via dedicated status registers (HSDSTAT) and interrupt flags - enabling real-time fault handling without CPU polling overhead. All diagnostics are documented in Section 13.4 of the S9S12VR48AF0VLF reference manual.
S9S12VR48AF0VLF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- S12 MagniV
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- 12V1
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- IrDA, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 28
- Program Memory Size:
- 48KB (48K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 512 x 8
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 3.13V ~ 5.5V
- Data Converters:
- A/D 6x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12VR48AF0VLF FAQ
1.How can I place an order for S9S12VR48AF0VLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12VR48AF0VLF 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 S9S12VR48AF0VLF reliable?
The price and inventory of S9S12VR48AF0VLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12VR48AF0VLF is usually 5 days.
3.What payment methods are accepted for S9S12VR48AF0VLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12VR48AF0VLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12VR48AF0VLF?
S9S12VR48AF0VLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12VR48AF0VLF 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 S9S12VR48AF0VLF?
For technical support, including S9S12VR48AF0VLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12VR48AF0VLF requirements.
6.How does Aetrix verify that S9S12VR48AF0VLF is sourced from the original manufacturer or authorized distributors?
All S9S12VR48AF0VLF 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 S9S12VR48AF0VLF meets industry standards.
7.What is the process for return or replacement of S9S12VR48AF0VLF?
All S9S12VR48AF0VLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S12VR48AF0VLF, 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 S9S12VR48AF0VLF part is unused and in its original packaging.
Return procedure for S9S12VR48AF0VLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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