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NXP Semiconductors S9S12VR48AF0MLF
- Part No.:
- S9S12VR48AF0MLF
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
S9S12VR48AF0MLF.pdf
- Description:
- IC MCU 16BIT 48KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,457
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Product details
Overview
S9S12VR48AF0MLF from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12 microcontroller optimized for automotive body electronics and low-voltage embedded control. It integrates 48 KB on-chip Flash with ECC, 4 KB SRAM, LIN physical layer transceiver, 8-channel PWM, 10-bit ADC with 8 inputs, high- and low-side drivers, and an on-chip voltage regulator - enabling single-chip control of lighting, window lift, seat actuation, and door modules in 5–27 V vehicle electrical systems.
For engineers reviewing the S9S12VR48AF0MLF datasheet, S9S12VR48AF0MLF pinout, S9S12VR48AF0MLF application, or S9S12VR48AF0MLF equivalent, key selection criteria include its 48-pin LQFP package, LINPHY compliance per ISO 17987-2/SAE J2602, integrated HSDRV/LSDRV driver outputs rated for 500 mA sink/source, and operation across –40°C to 125°C ambient with internal VREG supporting 5 V core logic and 5 V flash programming.
Technical Context
The S9S12VR48AF0MLF 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 its internal PLL (with external crystal or RC oscillator input). Its CPMU unit enables multiple low-power modes including Stop, Wait, and Freeze, with wake-up via LIN bus activity, GPIO interrupt, or analog comparator event.
System-level integration includes dedicated hardware modules: LINPHY supports baud rates from 1.2 to 20.0 kbps with automatic sync-break detection; ATD12B6C provides 10-bit conversions with configurable sample-and-hold and external trigger support; HSDRV delivers 500 mA high-side drive with overcurrent protection and thermal shutdown; LSDRV offers matched 500 mA low-side switching with diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | HCS12 16-bit CPU with 24-bit address space, 25 MHz max bus clock |
| Memory | 48 KB on-chip Flash (ECC-protected), 4 KB SRAM, 512 B EEPROM emulation |
| ADC | 10-bit ATD module with 8 input channels, 16 µs conversion time, VREF selectable between VDDA and internal 2.5 V |
| LIN Interface | Integrated LINPHY compliant with ISO 17987-2 and SAE J2602, supports master/slave mode, auto-baud detect |
| Driver Outputs | HSDRV: 1× 500 mA high-side driver; LSDRV: 1× 500 mA low-side driver; both with open-load, overtemp, and overcurrent reporting |
| Operating Range | –40°C to +125°C ambient, 5–27 V supply (VDDX), internal VREG generates stable 5 V for core and flash |
| Package | 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3 |
Pinout & Package
48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) with exposed thermal pad (EPAD) connected to VSS. Pin functions conform to MC9S12VR-Family device pinout specification Rev. 3.11, Section 1.8.1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDX / VSSX | Pad supply power/ground | Primary I/O domain supply (5–27 V); decoupling required per Appendix N |
| VDD / VSS | Core logic supply/ground | 5 V regulated output from internal VREG; powers CPU, peripherals, and Flash interface |
| VRH / VRL | ADC reference high/low | Configurable reference inputs; default tied to VDDA/VSSA for ratiometric measurement |
| LINRX / LINTX | LIN bus receive/transmit | Differential LIN PHY interface pins; require external 1 kΩ pull-up to VBAT and 47 kΩ bias resistor |
| HSDRV / LSDRV | High-side / low-side driver output | Direct connection to load (e.g., lamp, motor); each reports fault status via dedicated flag register bits |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; accepts 5 V tolerant signal; triggers full system initialization |
Key Features
| Feature | Design Value |
|---|---|
| Integrated LIN Physical Layer | Fully compliant ISO 17987-2 transceiver eliminates need for external LIN transceiver IC in body control modules |
| On-Chip Voltage Regulator (VREG) | Generates stable 5 V from 5–27 V input, enabling direct connection to vehicle battery without external DC/DC converter |
| HSDRV + LSDRV Diagnostics | Real-time reporting of open-load, short-to-ground, short-to-VBAT, and overtemperature conditions via status registers |
| Flash ECC Protection | Single-bit error correction and double-bit error detection on all 48 KB Flash memory to ensure firmware integrity in harsh EMI environments |
| Background Debug (BDM) | Single-wire debug interface supporting flash programming, breakpoint setting, and real-time register inspection without halting CPU |
Applications
| Automotive Door Module | LED Headlamp Control |
|---|---|
Use Scenario: Centralized control of power windows, locks, mirrors, and interior lighting in passenger car door assemblies. IC Role / Device Role / Timing Role: Main system controller managing LIN communication with body control module (BCM), driving motors and lamps via integrated HSDRV/LSDRV, and monitoring switch inputs. Use Value: Reduces BOM count by integrating LIN PHY, regulators, and drivers - eliminating 3–4 discrete ICs and associated passives. |
Use Scenario: Adaptive LED headlamp dimming and sequencing in modern automotive front lighting systems. IC Role / Device Role / Timing Role: PWM generator and current monitor for multi-string LED arrays; uses ATD to read thermal sensor feedback and adjust brightness dynamically. Use Value: 8-channel PWM with independent duty-cycle control enables precise per-LED current regulation without external LED drivers. |
| Seat Position Controller | Body Control Gateway Node |
Use Scenario: Motorized adjustment of seat position, lumbar support, and heating elements in premium vehicle seating systems. IC Role / Device Role / Timing Role: Safety-critical actuator controller using HSDRV to drive bidirectional DC motors and LSDRV for heater element switching; monitors motor current via ADC. Use Value: Integrated overcurrent and thermal protection prevents motor stall damage and meets ISO 26262 ASIL-B functional safety requirements. |
Use Scenario: Low-cost gateway node translating LIN commands from sensors (e.g., rain/light sensors) into CAN messages for central ECU. IC Role / Device Role / Timing Role: LIN slave node with SCI interface configured as CAN message forwarder; uses internal timer for message scheduling and latency control. Use Value: Eliminates need for separate LIN-to-CAN bridge IC while maintaining deterministic response timing under 10 ms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12VR64AF0MLF | 64 KB Flash, same peripheral set and pinout; higher code capacity for complex diagnostics or bootloader features | Preferred when >48 KB application code size or dual-bank flash update capability is required | Select if future firmware expansion or A/B firmware update architecture is planned |
| SPC560B50L5 | 32-bit Power Architecture core, 512 KB Flash, CAN FD, no integrated LIN PHY or HSDRV/LSDRV | Requires external LIN transceiver and driver ICs; suited for higher-performance gateway or ADAS-adjacent nodes | Choose only when migrating to 32-bit platform with CAN FD and advanced safety features (ASIL-D capable) |
Compared with MC9S12VR64AF0MLF, S9S12VR48AF0MLF trades 16 KB Flash for lower cost and identical footprint; versus SPC560B50L5, it delivers complete LIN+driver integration at lower complexity but lacks CAN FD and ASIL-D certification pathways.
Availability
S9S12VR48AF0MLF is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and smart appliance applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S9S12VR48AF0MLF 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 the Motorola 68HC11 era.
The S9S12VR family was designed specifically for cost-sensitive, function-integrated automotive body control units - emphasizing LIN connectivity, on-board power regulation, and robust driver interfaces without external support components.
FAQ
What is the maximum operating voltage for S9S12VR48AF0MLF?
The S9S12VR48AF0MLF supports a wide input supply range of 5 V to 27 V on the VDDX pin, making it compatible with 12 V and 24 V automotive battery systems including cold-crank and load-dump transients. Internal VREG regulates this down to a stable 5 V for core logic and Flash programming - no external DC/DC converter is needed. The absolute maximum rating is 30 V for 100 ms per ISO 7637-2 Pulse 5a.
Does S9S12VR48AF0MLF support LIN 2.2A protocol compliance?
Yes, the integrated LINPHY module in S9S12VR48AF0MLF complies with LIN 2.2A (ISO 17987-2:2013) and SAE J2602-2, including automatic sync-break detection, checksum handling, and slave node response time ≤ 1.2 ms. Protocol stack implementation is handled in firmware; the hardware PHY ensures physical layer conformance across baud rates from 1.2 to 20.0 kbps.
Can S9S12VR48AF0MLF drive a 24 V incandescent lamp directly?
No - the HSDRV and LSDRV outputs of S9S12VR48AF0MLF are rated for 500 mA continuous current at up to 27 V, but they operate from the internal 5 V rail and switch the load between VDDX (24 V) and VSS. To drive a 24 V lamp, connect the lamp between VDDX and HSDRV (high-side) or between LSDRV and VSS (low-side). The driver handles the voltage translation and protection; no external MOSFET is required.
Is there hardware support for EEPROM emulation in S9S12VR48AF0MLF?
Yes, S9S12VR48AF0MLF includes dedicated Flash IFR (In-Field Reprogrammable) sectors and firmware routines in the reference manual (Chapter 14) that enable reliable EEPROM emulation using 512 bytes of protected Flash space. This supports wear-leveling, atomic write operations, and data retention >10 years at 125°C - suitable for storing calibration values, odometer data, or configuration parameters.
What debug interface does S9S12VR48AF0MLF use?
S9S12VR48AF0MLF uses the Background Debug Mode (BDM) single-wire interface, compatible with standard Freescale/NXP BDM debuggers (e.g., USB-ML-12, PEMicro Cyclone). It supports full-speed debugging, flash programming, register inspection, and breakpoint insertion without halting real-time peripherals - critical for validating LIN timing and motor control loops during development.
S9S12VR48AF0MLF 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S9S12VR48AF0MLF FAQ
1.How can I place an order for S9S12VR48AF0MLF through Aetrix?
Please submit a Request for Quotation (RFQ) for S9S12VR48AF0MLF 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 S9S12VR48AF0MLF reliable?
The price and inventory of S9S12VR48AF0MLF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S9S12VR48AF0MLF is usually 5 days.
3.What payment methods are accepted for S9S12VR48AF0MLF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S9S12VR48AF0MLF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S9S12VR48AF0MLF?
S9S12VR48AF0MLF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S9S12VR48AF0MLF 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 S9S12VR48AF0MLF?
For technical support, including S9S12VR48AF0MLF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S9S12VR48AF0MLF requirements.
6.How does Aetrix verify that S9S12VR48AF0MLF is sourced from the original manufacturer or authorized distributors?
All S9S12VR48AF0MLF 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 S9S12VR48AF0MLF meets industry standards.
7.What is the process for return or replacement of S9S12VR48AF0MLF?
All S9S12VR48AF0MLF units undergo pre-shipment inspection (PSI). If there is an issue with S9S12VR48AF0MLF, 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 S9S12VR48AF0MLF part is unused and in its original packaging.
Return procedure for S9S12VR48AF0MLF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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