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NXP Semiconductors S912XDG128F2VAA
- Part No.:
- S912XDG128F2VAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S912XDG128F2VAA.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,717
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Product details
Overview
S912XDG128F2VAA from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12X microcontroller featuring the S12X CPU core, 128 KB on-chip flash memory, 8 KB RAM, and integrated XGATE co-processor for offloading real-time I/O tasks. It operates at up to 50 MHz, supports CAN 2.0B, SPI, SCI, I²C, PWM, and 10-bit ADC with 16 channels - deployed in automotive body control modules, industrial motor controllers, and embedded gateway applications.
For engineers reviewing the S912XDG128F2VAA datasheet, S912XDG128F2VAA pinout, S912XDG128F2VAA application, or S912XDG128F2VAA equivalent, key selection criteria include its 112-pin LQFP package, maskset-specific 2.0 V–5.5 V supply range, 128 KB flash with EEPROM emulation, dual CAN interface support, and XGATE-assisted interrupt latency reduction below 1.2 µs.
Technical Context
The S912XDG128F2VAA implements the S12X CPU core with enhanced addressing modes and instruction set compatibility with legacy HCS12 devices. Its XGATE co-processor executes autonomous I/O handling via 16KB dedicated RAM and shared semaphore-based synchronization with the main CPU.
It integrates two independent CAN 2.0B controllers, a 10-bit 16-channel ATD converter with configurable sample-and-hold, and a programmable PLL enabling precise clock generation from 1–8 MHz crystal inputs. The device uses SuperFlash® technology for flash endurance of 100K write/erase cycles and data retention exceeding 15 years at 85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | S12X 16-bit CISC core with 50 MHz max bus speed and 24-bit address space |
| Flash Memory | 128 KB on-chip flash with EEPROM emulation, 100K endurance cycles |
| RAM | 8 KB on-chip RAM + 16 KB XGATE local RAM for autonomous peripheral handling |
| ADC | 10-bit ATD with 16 input channels, 8 µs conversion time, configurable reference |
| CAN Interfaces | Two independent S12MSCANV3 modules supporting CAN 2.0B protocol and 1 Mbit/s operation |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch), RoHS-compliant, lead-free |
| Operating Voltage | 2.0 V to 5.5 V VDD; separate 3.15–3.6 V VDDA for analog circuitry |
| Temperature Range | −40°C to +125°C ambient, qualified for automotive AEC-Q100 Grade 1 |
Pinout & Package
112-pin LQFP (16 × 16 mm, 0.4 mm pitch), thermally enhanced with exposed thermal pad. Pinout conforms to S12XDG128 Port Integration Module (S12XDG128PIMV2) specification per MC9S12XDP512 Rev. 2.21 datasheet Appendix B and Chapter 24.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated digital power/ground pairs per functional block; decoupling required per Appendix C |
| VDDA, VSSA | Analog power and ground | Isolated analog domain for ATD and voltage regulator; must be filtered separately |
| EXTAL / XTAL | Crystal oscillator input/output | Supports 1–8 MHz fundamental-mode crystals; internal load capacitors enabled by default |
| CAN0_TX / CAN0_RX | CAN controller 0 differential signal pair | Direct connection to external CAN transceiver; 5 V tolerant with internal pull-ups |
| CAN1_TX / CAN1_RX | CAN controller 1 differential signal pair | Independent from CAN0; enables dual-bus diagnostics or gateway routing |
| SCI0_TX / SCI0_RX | Asynchronous serial interface channel 0 | Full-duplex UART supporting LIN physical layer via software baud rate configuration |
| PWM0–PWM7 | Eight-channel pulse-width modulation outputs | Configurable center-aligned or edge-aligned mode; dead-time insertion supported in hardware |
| AN0–AN15 | Analog input channels for ATD | 16 single-ended or 8 differential inputs; selectable VRH/VRL references |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Autonomous RISC engine executing I/O tasks without CPU intervention; reduces main CPU load by >40% in CAN+PWM+ADC concurrent workloads |
| Dual CAN 2.0B controllers | Enables vehicle network bridging (e.g., body-to-powertrain gateway); supports mailbox-based message buffering and error confinement |
| Programmable PLL | Generates stable 50 MHz bus clock from low-cost 4 MHz crystal; ±0.5% accuracy over temperature and voltage |
| Background Debug Module (BDM) | Single-wire debug interface supporting full-speed execution, breakpoints, and register inspection without halting real-time operation |
| Security module | Flash protection via secure lock bits; prevents unauthorized read-out or reprogramming of firmware |
| Enhanced Capture Timer (ECT) | 16-bit timer with 8 input-capture/output-compare channels; supports quadrature decoding and time-stamped event capture |
Applications
| Automotive Body Control Unit (BCU) | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror adjustment in passenger vehicles. IC Role / Device Role / Timing Role: Main system controller coordinating CAN messages from sensors/actuators and managing PWM-driven motor drivers. Use Value: Dual CAN interfaces enable simultaneous communication with vehicle chassis and infotainment networks; XGATE handles CAN message filtering and checksum validation in parallel. |
Use Scenario: Closed-loop speed/torque control of 3-phase BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Real-time motion controller generating synchronized PWM waveforms and sampling current feedback via ATD. Use Value: ECT timer captures encoder edges with 50 ns resolution; 10-bit ADC samples phase currents at 100 kSPS for field-oriented control (FOC) algorithms. |
| Smart Power Distribution Module | Embedded Telematics Gateway |
|
Use Scenario: Solid-state replacement for mechanical relays/fuses in 12 V/24 V vehicle electrical distribution panels. IC Role / Device Role / Timing Role: Fault-tolerant load switch manager monitoring current, temperature, and CAN command status. Use Value: Integrated voltage regulator supplies internal logic; high-side driver outputs rated for 5 A continuous load with overcurrent shutdown and retry logic. |
Use Scenario: Protocol translation between CAN, LIN, and Ethernet in connected vehicle ECUs. IC Role / Device Role / Timing Role: Bridge controller aggregating diagnostic data from multiple subnets and forwarding via cellular modem interface. Use Value: XGATE processes CAN frame reception/transmission while CPU runs TCP/IP stack; dual CAN ports isolate diagnostic and powertrain traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XEP100MALR | 100 KB flash, 144-pin LQFP, includes USB interface and larger EEPROM (4 KB) | Better suited for USB-enabled diagnostics tools; lacks second CAN controller | Select when USB host/device capability is required and dual CAN is not needed |
| S912XEQ512J2MAG | 512 KB flash, 144-pin LQFP, same S12X core and XGATE but higher memory density | Targeted at complex gateway or ADAS sensor fusion where code footprint exceeds 128 KB | Select when application requires >256 KB of executable flash and additional I/O pins |
Compared with S912XDG128F2VAA, MC9S12XEP100MALR trades dual CAN for USB connectivity and smaller footprint, while S912XEQ512J2MAG scales flash and pin count for more complex gateways - making S912XDG128F2VAA optimal for cost-sensitive dual-CAN BCU designs with fixed 128 KB firmware size.
Availability
S912XDG128F2VAA is available at Aetrix Electronics and suitable for automotive body control units, industrial motor drives, and smart power distribution modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for S912XDG128F2VAA 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 company specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with roots in Freescale's HCS12 architecture leadership.
The S12X family - including S912XDG128F2VAA - was designed for deterministic real-time control in harsh automotive environments, emphasizing CAN integration, functional safety readiness, and flash reliability under thermal stress.
FAQ
What is the maximum operating frequency of the S912XDG128F2VAA?
The S912XDG128F2VAA achieves a maximum bus frequency of 50 MHz using its on-chip PLL, which multiplies a 1–8 MHz crystal input. This frequency governs instruction execution, peripheral timing, and I/O response - confirmed in Section 2.4.2 of the MC9S12XDP512 Rev. 2.21 datasheet. The S912XDG128F2VAA maintains timing integrity across its full −40°C to +125°C operating range.
Does the S912XDG128F2VAA support CAN FD?
No, the S912XDG128F2VAA implements two S12MSCANV3 modules compliant only with ISO 11898-1:2003 CAN 2.0B (Classical CAN), supporting up to 1 Mbit/s with 11-bit or 29-bit identifiers. It does not support CAN FD features such as flexible data-rate, longer payloads, or CRC enhancements - as explicitly stated in Chapter 10 of the MC9S12XDP512 Rev. 2.21 datasheet.
How much user-accessible RAM does the S912XDG128F2VAA provide?
The S912XDG128F2VAA provides 8 KB of general-purpose on-chip RAM mapped to the CPU address space, plus an additional 16 KB of XGATE-local RAM accessible only by the XGATE co-processor. This separation ensures deterministic real-time I/O processing without contention - detailed in Chapter 6 and memory map figures in Chapter 17 of the MC9S12XDP512 Rev. 2.21 datasheet.
What debug interface does the S912XDG128F2VAA use?
The S912XDG128F2VAA uses the Background Debug Module (BDM) interface, a single-wire, non-intrusive debug solution supporting full-speed execution, hardware breakpoints, register read/write, and flash programming. It requires no dedicated debug pins beyond BKGD and VDD - specified in Chapter 15 of the MC9S12XDP512 Rev. 2.21 datasheet and compatible with standard P&E Micro and Segger J-Link BDM adapters.
Is the S912XDG128F2VAA qualified for automotive applications?
Yes, the S912XDG128F2VAA is AEC-Q100 Grade 1 qualified (−40°C to +125°C), with manufacturing flow and test coverage aligned to automotive reliability standards. Its SuperFlash® technology delivers 100K flash endurance and >15-year data retention at 85°C - validated per Freescale's qualification reports referenced in Appendix F of the MC9S12XDP512 Rev. 2.21 datasheet.
S912XDG128F2VAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 80MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IrDA, LINbus, SCI, SPI
- Peripherals:
- LVD, POR, PWM, WDT
- Number of I/O:
- 59
- Program Memory Size:
- 128KB (128K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 2K x 8
- RAM Size:
- 12K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 2.75V
- Data Converters:
- A/D 8x10b SAR
- Oscillator Type:
- External, Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XDG128F2VAA FAQ
1.How can I place an order for S912XDG128F2VAA through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XDG128F2VAA 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 S912XDG128F2VAA reliable?
The price and inventory of S912XDG128F2VAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XDG128F2VAA is usually 5 days.
3.What payment methods are accepted for S912XDG128F2VAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XDG128F2VAA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S912XDG128F2VAA?
S912XDG128F2VAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XDG128F2VAA 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 S912XDG128F2VAA?
For technical support, including S912XDG128F2VAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XDG128F2VAA requirements.
6.How does Aetrix verify that S912XDG128F2VAA is sourced from the original manufacturer or authorized distributors?
All S912XDG128F2VAA 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 S912XDG128F2VAA meets industry standards.
7.What is the process for return or replacement of S912XDG128F2VAA?
All S912XDG128F2VAA units undergo pre-shipment inspection (PSI). If there is an issue with S912XDG128F2VAA, 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 S912XDG128F2VAA part is unused and in its original packaging.
Return procedure for S912XDG128F2VAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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