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NXP Semiconductors S912XDG128F2CAA
- Part No.:
- S912XDG128F2CAA
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 80-QFP
- Datasheet:
-
S912XDG128F2CAA.pdf
- Description:
- IC MCU 16BIT 128KB FLASH 80QFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,479
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Product details
Overview
S912XDG128F2CAA 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 real-time peripheral handling. It operates at up to 50 MHz, supports CAN 2.0B, SPI, I²C, and multiple PWM/ECT channels, and targets automotive body control modules requiring deterministic timing and ASIL-B–capable fault handling.
For engineers reviewing the S912XDG128F2CAA datasheet, S912XDG128F2CAA pinout, S912XDG128F2CAA application, or S912XDG128F2CAA equivalent, key selection criteria include its 112-pin LQFP package, dual-voltage operation (3.13–5.5 V), 10-bit ATD with 16-channel input multiplexing, and maskset-specific security features tied to F2CAA revision.
Technical Context
The S912XDG128F2CAA implements the S12X CPU core with enhanced addressing modes and instruction set compatibility with legacy S12 devices. Its XGATE co-processor executes autonomous interrupt service routines in parallel with the main CPU, offloading time-critical tasks such as CAN message filtering and PWM synchronization.
It integrates the S12XDG128 Port Integration Module (PIM), supporting 91 general-purpose I/O pins, configurable pull-up/pull-down, and dedicated peripheral signal routing-including dual CAN controllers, six SCI modules, and four SPI interfaces-all mapped to specific port pins per maskset F2CAA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12X 16-bit CISC CPU with 50 MHz max bus speed and 24-bit linear addressing |
| Flash Memory | 128 KB on-chip flash with EEPROM emulation, 10K erase/write cycles, and secure block protection |
| RAM | 8 KB on-chip SRAM, including 2 KB XGATE-dedicated RAM for co-processor task buffers |
| Analog-to-Digital Converter | 10-bit ATD with 16 input channels, 8 µs conversion time, and programmable sample-and-hold |
| CAN Interfaces | Dual independent CAN 2.0B controllers with 64-message object buffers and hardware acceptance filtering |
| Package | 112-pin LQFP (16 × 16 mm, 0.4 mm pitch), RoHS-compliant, industrial temperature grade (−40°C to +105°C) |
| Supply Voltage | 3.13 V to 5.5 V VDD range; internal 3.3 V regulator supplies core logic and analog circuitry |
Pinout & Package
112-pin LQFP (Leadless Quad Flat Package), 16 mm × 16 mm body, 0.4 mm lead pitch, exposed thermal pad. Pin functions conform to S12XDG128PIMV2 specification for maskset F2CAA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Main power and ground | Separate analog/digital supply domains; VDDA/VSSA required for ATD reference stability |
| EXTAL / XTAL | Crystal oscillator inputs | Supports 4–32 MHz crystal; enables precision clock source for CAN bit timing and real-time interrupts |
| CAN0TX / CAN0RX | CAN controller 0 differential interface | Direct connection to external CAN transceiver; supports high-speed (1 Mbps) and fault-tolerant modes |
| SCI0TX / SCI0RX | Serial communication interface 0 | Asynchronous full-duplex UART; used for bootloader communication and diagnostic logging |
| PWM0–PWM7 | Pulse-width modulation outputs | Eight independent channels with center-aligned/edge-aligned modes; supports motor phase control and LED dimming |
| IOC0–IOC7 | Input capture/output compare | Hardware-timed event capture (e.g., encoder pulses) and precise output generation (e.g., dead-time insertion) |
Key Features
| Feature | Design Value |
|---|---|
| XGATE co-processor | Independent RISC engine with 2 KB dedicated RAM; handles CAN, SCI, and PWM interrupts without CPU intervention |
| Enhanced Capture Timer (ECT) | 8-channel 16-bit timer with input capture, output compare, and quadrature decode for motor position sensing |
| Security module | Flash protection via backdoor key access and mass erase lock; prevents unauthorized firmware readout or modification |
| Background Debug Mode (BDM) | Single-wire debug interface supporting real-time register inspection, breakpoint setting, and flash programming |
| Power management | Four low-power modes (WAIT, STOP, PSEUDO-STOP, FREEZE); reduces current to ≤10 µA in STOP mode |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
Use Scenario: Centralized vehicle lighting, door lock, window lift, and mirror control with CAN network integration. IC Role / Device Role / Timing Role: Main MCU executing real-time state machines, managing I/O expansion via SPI, and filtering CAN messages using XGATE. Use Value: Deterministic response under 50 µs for safety-critical lock/unlock commands; dual CAN ports enable separation of comfort and powertrain networks. | Use Scenario: Auxiliary engine subsystem monitoring (e.g., turbocharger actuator, EGR valve, coolant pump). IC Role / Device Role / Timing Role: Dedicated subsystem controller interfacing with main ECU via CAN, performing closed-loop PWM control and analog sensor acquisition. Use Value: 10-bit ATD with hardware averaging ensures stable temperature and pressure readings; ECT quadrature decode supports precise actuator position feedback. |
| Industrial Motor Drive Interface | Commercial HVAC Controller |
Use Scenario: Low-voltage BLDC motor control in automated dispensing systems and conveyor drives. IC Role / Device Role / Timing Role: Real-time PWM generation with dead-time insertion, current sensing via ATD, and fault reporting over SCI. Use Value: Eight PWM channels support three-phase inverter + auxiliary control; XGATE autonomously manages overcurrent shutdown within 2 µs. | Use Scenario: Zone-based temperature regulation with multi-sensor inputs, fan speed control, and damper actuation. IC Role / Device Role / Timing Role: System-on-module controller aggregating thermistor, humidity, and CO₂ data while coordinating multiple fan PWM outputs. Use Value: 16-channel ATD enables simultaneous sampling of 12 sensors; I²C interface connects to digital environmental sensors without GPIO overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12XDP512MAL | 512 KB flash, 32 KB RAM, same S12X core and XGATE; larger memory footprint and higher pin count (112-pin vs. 112-pin LQFP but different pin mapping) | Targeted at full-featured ECUs requiring extensive code space and additional peripherals (e.g., extra CAN, SCI) | Select when application demands >128 KB flash or needs more than two CAN interfaces with full message object support |
| S912XEQ512J2MAL | Same 512 KB flash as DP512 but uses EQ-series PIM; lacks XGATE co-processor and has reduced I/O count (80 pins) | Suitable for cost-sensitive applications where real-time peripheral offload is not required | Choose only if XGATE autonomy is unnecessary and BOM cost reduction outweighs loss of deterministic interrupt latency |
Compared with MC9S12XDP512MAL and S912XEQ512J2MAL, the S912XDG128F2CAA provides optimal balance of real-time capability (via XGATE), compact memory (128 KB flash), and I/O density (91 GPIO) for mid-tier automotive and industrial controllers-without over-provisioning resources or sacrificing deterministic response.
Availability
S912XDG128F2CAA is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor interface designs, and commercial HVAC control systems requiring stable component supply, long-term lifecycle support, and qualified automotive-grade reliability.
Supply support for S912XDG128F2CAA 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 heritage in automotive microcontrollers dating to Motorola's original 68HC11.
The S912XDG128F2CAA belongs to the HCS12X family, designed specifically for cost-sensitive, safety-aware automotive body electronics and industrial control applications requiring deterministic real-time performance, functional safety readiness, and robust EMC behavior.
FAQ
What is the maximum operating frequency of the S912XDG128F2CAA?
The S912XDG128F2CAA supports a maximum bus frequency of 50 MHz, achieved via its internal PLL with external crystal (4–32 MHz) or external clock input. This frequency governs instruction execution, peripheral timing, and CAN bit rate accuracy. The S912XDG128F2CAA maintains timing compliance across its full industrial temperature range (−40°C to +105°C) when operated within specified voltage and decoupling conditions.
Does the S912XDG128F2CAA include an integrated CAN controller?
Yes, the S912XDG128F2CAA integrates two independent CAN 2.0B controllers compliant with ISO 11898-1. Each controller features 64 message objects, hardware ID filtering, and automatic retransmission. These are fully supported in the S912XDG128F2CAA maskset and require no external transceivers-only standard CAN PHY drivers-and are validated for use in automotive body networks.
How much user-accessible flash memory does the S912XDG128F2CAA provide?
The S912XDG128F2CAA provides 128 KB of on-chip flash memory, of which 124 KB is user-programmable. The remaining 4 KB contains factory-trimmed calibration data, security keys, and boot ROM. Flash endurance is rated at 10,000 erase/write cycles, and sector protection is enforced via the S912XDG128F2CAA's security module to prevent accidental overwrite.
Is the XGATE co-processor available on the S912XDG128F2CAA?
Yes, the S912XDG128F2CAA includes the full XGATE V2 co-processor, a 16-bit RISC engine with 2 KB dedicated RAM and autonomous interrupt vectoring. It is enabled by default in the F2CAA maskset and supports concurrent execution of time-critical tasks-including CAN message handling, SCI buffering, and PWM synchronization-without CPU intervention.
What debug interface does the S912XDG128F2CAA support?
The S912XDG128F2CAA supports Background Debug Mode (BDM) via a single-wire interface compatible with standard Freescale/NXP BDM debuggers. This interface enables non-intrusive flash programming, real-time register and memory inspection, and hardware breakpoints. No JTAG port is present-the S912XDG128F2CAA relies exclusively on BDM for development and field updates.
S912XDG128F2CAA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 80-QFP
- Series:
- HCS12X
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Programmable:
- Not Verified
- Core Processor:
- HCS12X
- Core Size:
- 16-Bit
- Speed:
- 80MHz
- Connectivity:
- CANbus, I2C, 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 ~ 5.5V
- Data Converters:
- A/D 8x10b, 16x10b
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
S912XDG128F2CAA FAQ
1.How can I place an order for S912XDG128F2CAA through Aetrix?
Please submit a Request for Quotation (RFQ) for S912XDG128F2CAA 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 S912XDG128F2CAA reliable?
The price and inventory of S912XDG128F2CAA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S912XDG128F2CAA is usually 5 days.
3.What payment methods are accepted for S912XDG128F2CAA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S912XDG128F2CAA transactions.
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4.How is shipping managed for S912XDG128F2CAA?
S912XDG128F2CAA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S912XDG128F2CAA 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 S912XDG128F2CAA?
For technical support, including S912XDG128F2CAA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S912XDG128F2CAA requirements.
6.How does Aetrix verify that S912XDG128F2CAA is sourced from the original manufacturer or authorized distributors?
All S912XDG128F2CAA 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 S912XDG128F2CAA meets industry standards.
7.What is the process for return or replacement of S912XDG128F2CAA?
All S912XDG128F2CAA units undergo pre-shipment inspection (PSI). If there is an issue with S912XDG128F2CAA, 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 S912XDG128F2CAA part is unused and in its original packaging.
Return procedure for S912XDG128F2CAA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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