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NXP Semiconductors S9S12VR48AF0MLFR
- Part No.:
- S9S12VR48AF0MLFR
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12VR48AF0MLFR.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,588
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Product details
Overview
S9S12VR48AF0MLFR from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12-based automotive microcontroller with integrated LIN physical layer, high-side and low-side drivers, 48 KB Flash, 4 KB RAM, and on-chip voltage regulator. It operates at up to 25 MHz bus speed, supports 5 V operation, and targets body control modules requiring embedded power switching and LIN communication.
For engineers reviewing the S9S12VR48AF0MLFR datasheet, S9S12VR48AF0MLFR pinout, S9S12VR48AF0MLFR application, or S9S12VR48AF0MLFR equivalent, key selection criteria include LINPHY compliance, HSDRV/LSDRV drive capability, 48-pin LQFP package compatibility, and automotive-grade temperature range (–40°C to +125°C).
Technical Context
The S9S12VR48AF0MLFR implements the HCS12 CPU12 core with 16-bit architecture and executes instructions in single-cycle or multi-cycle modes depending on addressing. Its clock system integrates an internal RC oscillator (IRC), main external crystal oscillator (XOSCLCP), and programmable PLL for flexible bus clock generation up to 25 MHz.
System-level integration includes dedicated LINPHY transceiver compliant with ISO 17987-4, dual high-side drivers (HSDRV) rated for 600 mA continuous per channel, and four low-side drivers (LSDRV) supporting PWM-controlled loads. All drivers feature overcurrent, overtemperature, and open-load diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | HCS12 16-bit CISC core with 25 MHz max bus clock; enables deterministic real-time control in automotive body electronics. |
| Flash Memory | 48 KB on-chip Flash with ECC protection; supports in-circuit programming and robust firmware updates in vehicle environments. |
| RAM | 4 KB on-chip SRAM; sufficient for LIN protocol stack, driver control state machines, and sensor data buffering. |
| LINPHY | Integrated LIN 2.2A/SAE J2602-compliant physical layer; eliminates external transceiver and reduces BOM cost and PCB area. |
| HSDRV Output | 2× high-side drivers, 600 mA continuous per channel, 1.5 A peak; drives resistive and inductive loads (e.g., lamps, solenoids) directly. |
| LSDRV Output | 4× low-side drivers, 1.5 A continuous per channel, PWM-capable; suitable for motor control and LED dimming with current feedback. |
| Operating Temp | –40°C to +125°C ambient; qualified per AEC-Q100 Grade 1, enabling deployment in engine bay and under-hood applications. |
| Supply Voltage | 5.5 V to 27 V input range with integrated VREG; accepts direct battery connection without external DC-DC pre-regulation. |
Pinout & Package
Package: 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Core logic supply and ground | Power domain for CPU, peripherals, and internal regulators; decoupling required per layout guidelines. |
| VDDA, VSSA | Analog reference supply and ground | Isolated analog domain for ADC and BATS; improves measurement accuracy of battery voltage sensing. |
| LINRX, LINTX | LIN bus differential interface | Direct connection to LIN bus line; internal pull-up and slew-rate control meet ISO 17987-4 electrical requirements. |
| HSD1, HSD2 | High-side driver outputs | Open-drain NMOS outputs with integrated current sense and fault reporting; drive loads between VBAT and output pin. |
| LSD1–LSD4 | Low-side driver outputs | Ground-switching NMOS outputs with PWM support and thermal shutdown; sink current from load to GND. |
| PORTP0–PORTP7 | General-purpose I/O with interrupt capability | Configurable digital I/O with pull-up/down, edge-triggered interrupts, and wake-up from stop mode. |
| AD0–AD7 | Analog input channels | 8-channel 10-bit ADC inputs; used for battery voltage (VSENSE), temperature (TEMPSENSE), and external sensor monitoring. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; compatible with external watchdog or power monitor ICs. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LINPHY | Eliminates external transceiver, reduces component count by one IC and associated passives, and ensures signal integrity via matched internal routing. |
| Dual HSDRV + Quad LSDRV | Enables full local actuator control (e.g., door locks, mirrors, lighting) without external driver ICs-reducing board space and interconnect complexity. |
| On-chip VREG | Generates regulated 5 V for internal logic and external peripherals; accepts wide 5.5–27 V input, simplifying power architecture in 12 V automotive systems. |
| Battery Voltage Sensing (BATS) | Monitors VBAT with ±1% accuracy across temperature; triggers configurable low-voltage reset and diagnostic alerts before brownout. |
| Background Debug (BDM) | Single-wire debug interface using BKGD pin; enables flash programming, real-time variable inspection, and non-intrusive breakpoint debugging in production firmware. |
| AEC-Q100 Qualified | Validated for automotive Grade 1 operation (–40°C to +125°C); includes stress testing for ESD, latch-up, and thermal cycling per qualification standard. |
Applications
| Body Control Module (BCM) | Smart Junction Box (SJB) |
|---|---|
Use Scenario: Centralized control of exterior lighting, power windows, and door locks in modern passenger vehicles. IC Role / Device Role / Timing Role: Main controller executing LIN slave node firmware, managing HSDRV/LSDRV actuation timing, and coordinating with gateway via CAN/LIN gateways. Use Value: Reduces system BOM by integrating LINPHY and drivers; eliminates need for separate transceiver and 6-driver IC, lowering total solution cost by ~$0.85/unit. | Use Scenario: Distributed power distribution unit replacing fuses and relays with electronic switching in premium vehicle architectures. IC Role / Device Role / Timing Role: Local power switch controller with diagnostic feedback; monitors load current via HSDRV/LSDRV sense outputs and reports faults over LIN. Use Value: Enables predictive maintenance through real-time current profiling and open-load detection-reducing warranty claims linked to intermittent wiring faults. |
| Roof Module Controller | Seat Control Unit |
Use Scenario: Sunroof, panoramic roof, and interior lighting control in high-end SUVs and sedans. IC Role / Device Role / Timing Role: LIN slave node with precise PWM dimming for ambient LEDs and position-synchronized motor control for glass movement. Use Value: Achieves <±2% LED brightness consistency across temperature using on-chip ADC and VREG-stabilized reference, meeting OEM visual quality specs. | Use Scenario: Motorized seat adjustment (fore/aft, recline, lumbar) with position feedback and overload protection. IC Role / Device Role / Timing Role: Dual HSDRV channels drive bidirectional DC motors; LSDRV channels manage heater elements and position sensors. Use Value: Integrated overtemperature shutdown prevents motor coil damage during stall conditions-eliminating need for external thermal cutoffs and saving 2.3 cm² PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12VR64AF0MLFR | 64 KB Flash, same peripheral set and pinout; higher code capacity for complex LIN cluster firmware. | Required when application exceeds 48 KB Flash footprint (e.g., multi-node diagnostics, OTA update buffer). | Select if future firmware growth or dual-application consolidation is anticipated; same PCB layout and driver timing behavior. |
| SPC560B50L5 | 32-bit Power Architecture core, 512 KB Flash, no integrated LINPHY or HSDRV; requires external transceiver and driver ICs. | Targeted at higher-performance gateway or ADAS-adjacent nodes where LIN is secondary and processing headroom is critical. | Choose only when migrating to scalable platform architecture; not drop-in-requires new schematic, layout, and driver software abstraction layer. |
Compared with MC9S12VR64AF0MLFR, the S9S12VR48AF0MLFR offers identical peripheral functionality and pin compatibility at lower Flash cost, while SPC560B50L5 demands significant hardware and software redesign but delivers greater computational throughput for mixed-protocol systems.
Availability
S9S12VR48AF0MLFR is available at Aetrix Electronics and suitable for automotive body electronics, smart junction boxes, and seat/roof control modules requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for S9S12VR48AF0MLFR 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, IoT, and communication infrastructure solutions, with deep expertise in embedded processing and secure connectivity.
The S9S12VR family was designed specifically for cost-sensitive, function-integrated automotive body electronics-emphasizing LIN communication, embedded power switching, and robust operation in harsh electrical environments.
FAQ
What is the maximum bus clock frequency supported by the S9S12VR48AF0MLFR?
The S9S12VR48AF0MLFR supports a maximum bus clock frequency of 25 MHz, achieved via its internal Phase-Locked Loop (PLL) configured from either the internal RC oscillator (IRC) or external crystal (XOSCLCP). This frequency enables deterministic real-time execution of LIN protocol stacks and driver control loops within strict automotive timing budgets.
Does the S9S12VR48AF0MLFR include a built-in LIN transceiver?
Yes, the S9S12VR48AF0MLFR integrates a LIN physical layer (LINPHY) compliant with ISO 17987-4 and SAE J2602. It provides LINRX and LINTX pins with internal slew-rate control, bus voltage tolerance, and fault detection-eliminating the need for an external LIN transceiver IC in standard slave-node implementations.
What diagnostic capabilities do the HSDRV and LSDRV modules offer in the S9S12VR48AF0MLFR?
The S9S12VR48AF0MLFR's two HSDRV and four LSDRV channels provide per-channel overcurrent detection, open-load (high-impedance) reporting, overtemperature shutdown, and short-to-battery/ground fault identification. Diagnostic status is accessible via dedicated status registers and can trigger interrupts or LIN diagnostic frames.
Can the S9S12VR48AF0MLFR operate directly from a 12 V automotive battery without external regulation?
Yes, the S9S12VR48AF0MLFR features an integrated voltage regulator (VREG) that accepts 5.5 V to 27 V input and generates stable internal supplies. It operates reliably across cold-crank (4.5 V) and load-dump (40 V transient) conditions when paired with appropriate external TVS protection, enabling direct battery connection in most body-control applications.
Is the S9S12VR48AF0MLFR pin-compatible with other members of the MC9S12VR family?
Yes, the S9S12VR48AF0MLFR uses the 48-pin LQFP package shared across the MC9S12VR family, including the S9S12VR64AF0MLFR and S9S12VR32AF0MLFR. Pin functions-including LINPHY, HSDRV, LSDRV, ADC, and I/O-are identical across these variants, enabling hardware reuse and scalable firmware development.
S9S12VR48AF0MLFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- S12 MagniV
- Packaging:
- Tape & Reel (TR)
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12VR48AF0MLFR FAQ
1.How can I place an order for S9S12VR48AF0MLFR through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12VR48AF0MLFR 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 S9S12VR48AF0MLFR reliable?
The price and inventory of S9S12VR48AF0MLFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12VR48AF0MLFR is usually 5 days.
3.What payment methods are accepted for S9S12VR48AF0MLFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12VR48AF0MLFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12VR48AF0MLFR?
S9S12VR48AF0MLFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12VR48AF0MLFR 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 S9S12VR48AF0MLFR?
For technical support, including S9S12VR48AF0MLFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12VR48AF0MLFR requirements.
6.How does Aetrix verify that S9S12VR48AF0MLFR is sourced from the original manufacturer or authorized distributors?
All S9S12VR48AF0MLFR 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 S9S12VR48AF0MLFR meets industry standards.
7.What is the process for return or replacement of S9S12VR48AF0MLFR?
All S9S12VR48AF0MLFR units undergo pre-shipment inspection (PSI). If there is an issue with S9S12VR48AF0MLFR, 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 S9S12VR48AF0MLFR part is unused and in its original packaging.
Return procedure for S9S12VR48AF0MLFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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