S912XEG384J3VAA - 16-Bit 50MHz S12X MCU | NXP | Automotive
MPN: S912XEG384J3VAA ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
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S912XEG384J3VAA Overview
What is an S12X microcontroller? An S12X microcontroller is a 16-bit embedded-control semiconductor that integrates CPU peripherals, Flash program memory, RAM, analog conversion, timers, communication interfaces, and protective supervision functions. The S12X family belongs to the HCS12 embedded-processing hierarchy and is designed for automotive and industrial systems requiring deterministic real-time behavior, mixed-signal measurement, and high system integrity.
Key verified features include a 50 MHz S12X CPU, 384 KB of programmable Flash, an XGATE coprocessor for virtual-peripheral workloads, and a 12-bit ADC with a stated 3 µs conversion time. The memory protection unit and supervisor/user modes help isolate critical tasks and restrict unauthorized access, while programmable hardware-emulated EEPROM supports flexible nonvolatile data storage.
The device also provides an Enhanced Capture Timer, Periodic Interrupt Timer, and Real Time Interrupt for event-driven and scheduled control. Its 80-QFP package offers 80 externally accessible leads, making it suitable for designs that need broad peripheral connectivity and straightforward inspection or rework. The operating range of -40°C to +105°C supports harsh automotive environments, although the exact automotive qualification designation beyond the verified description is not expanded here.
Typical uses include vehicle body and chassis control modules, motor and actuator controllers, sensor acquisition systems, automotive gateway logic, and industrial embedded controllers. The 12-bit ADC supports analog sensor interfaces, while the XGATE can off suitable background processing from the main CPU. Designs should verify signal levels, timing, unused pins, decoupling, and qualification requirements directly against the manufacturer datasheet before production release.
A key design consideration is that the 50 MHz CPU rate does not remove real-time constraints: peripheral clocking, interrupt latency, bus contention, and memory wait-state behavior still require deterministic scheduling. For PCB implementation, place decoupling close to supply pins, route sensitive analog inputs away from fast digital transitions, and preserve the package pin assignments and land pattern shown in the official documentation.
This page consolidates verified distributor and manufacturer information, lifecycle status, package details, commercial availability signals, and engineering-oriented design guidance. It is intended to help engineers identify whether the S912XEG384J3VAA fits an automotive embedded-control design before requesting manufacturer documentation and production sourcing.
Drop-in alternatives for S912XEG384J3VAA — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with S912XEG384J3VAA (same form factor and footprint) — differing in Package, Supply Voltage, Mounting Type, Package Code, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
S912XEG384J2CAL
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View Datasheet →S912XEG384AVAGR
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View Datasheet →S912XET256J1CALR
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View Datasheet →S912XES384J3VAL
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View Datasheet →S912XES384J2CAL
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View Datasheet →S912XEG384J3VAA Maximum Ratings & Electrical Characteristics
| CPU Core | 16-bit S12X |
| CPU Frequency | 50 MHz |
| Flash Memory | 384 KB |
| Flash Organization | 384K x 8 bits |
| ADC Resolution | 12 bits |
| ADC Conversion Time | 3 µs |
| Operating Temperature | -40°C to +105°C |
| Package | 80-pin QFP |
| Package Dimensions | 14 x 14 mm |
| Package Code | QFP |
| Terminal Count | 80 leads |
| Mounting Type | Surface mount |
| Automotive Qualification | Automotive qualified |
| Coprocessor | XGATE |
| Programmable Emulated EEPROM | Yes |
| Memory Protection Unit | Yes |
| Supervisor and User Modes | Yes |
| Enhanced Capture Timer | Yes |
| Periodic Interrupt Timer | Yes |
| Real Time Interrupt | Yes |
S912XEG384J3VAA qfp Pin Configuration Guide
Pin configuration for S912XEG384J3VAA (qfp package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for S912XEG384J3VAA.
Refer to the datasheet for full pin configuration.
Typical Applications
S912XEG384J3VAA is suitable for 6 applications: Vehicle Body Control Module, Automotive Motor and Actuator Control, Automotive Sensor Acquisition System, Industrial Embedded Controller, Real-Time Timer and Event Processing, Automotive Gateway and Communication Logic.
Vehicle Body Control Module
The S912XEG384J3VAA fits a vehicle body-control module requiring a 16-bit S12X CPU, 384 KB of Flash, and an operating range of -40°C to +105°C. Its XGATE coprocessor can assist with background virtual-peripheral tasks while the main core handles deterministic control logic. The 12-bit ADC supports sensor conditioning, and the timer resources support periodic diagnostics and event capture. Before production, verify the exact pinout, electrical limits, qualification documentation, and software device configuration from NXP.
Recommended
Automotive Motor and Actuator Control
For actuator and motor-control logic, the 50 MHz S12X CPU provides deterministic processing for command sequencing, fault handling, and timing-sensitive outputs. The verified 12-bit ADC can acquire feedback from analog sensors, while the Enhanced Capture Timer, Periodic Interrupt Timer, and Real Time Interrupt support event and scheduling functions. The -40°C to +105°C range and automotive-qualified description support harsh-environment evaluation. Exact pin multiplexing, PWM resources, current ratings, and protection requirements remain datasheet-dependent.
Recommended
Automotive Sensor Acquisition System
The S912XEG384J3VAA is suitable for centralized sensor acquisition because it combines a 12-bit ADC with a 3 µs stated conversion time, 384 KB of Flash, and memory-protection features. The memory protection unit and supervisor/user modes can help partition safety-critical and noncritical code, while XGATE can handle selected background processing. A practical design should preserve analog and digital separation, provide appropriate reference and conditioning, and verify ADC timing and accuracy limits against the official datasheet.
Recommended
Industrial Embedded Controller
The S912XEG384J3VAA can serve as a general embedded controller for industrial equipment requiring a 16-bit CPU, substantial program memory, and robust timing peripherals. Its 384 KB Flash supports larger control software, and the 50 MHz S12X core supports responsive control loops. The verified -40°C to +105°C temperature range is useful for demanding equipment, while supervisor/user modes and the memory protection unit support software segmentation. Use the exact electrical and pin data to finalize power, I/O, and interface selection.
Recommended
Real-Time Timer and Event Processing
The Enhanced Capture Timer, Periodic Interrupt Timer, and Real Time Interrupt make the S912XEG384J3VAA suitable for deterministic event processing and scheduled control tasks. The 50 MHz CPU can execute application logic and supervisory checks, while the XGATE coprocessor can assist with suitable virtual peripherals without replacing all main-core timing responsibilities. Design the interrupt architecture around the actual peripheral clocking, priority behavior, and latency values in the manufacturer documentation; those values are not included in the supplied search data.
Recommended
Automotive Gateway and Communication Logic
The S912XEG384J3VAA is a candidate for gateway and communication logic where a 16-bit MCU, 384 KB Flash, memory protection, and real-time timers are more important than a high-bandwidth application processor. Supervisor/user modes can support controlled software environments, and the XGATE can assist with virtual peripherals. The verified snippets do not list the available CAN, LIN, Ethernet, or other communication interfaces, so designers must confirm protocol support, transceiver requirements, pin assignment, and timing from the official datasheet.
Recommended
Recommended Products Summary
Engineering reference data for S912XEG384J3VAA — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | S912XEG384J2CAL | S912XEG384AVAGR | S912XET256J1CALR | S912XES384J3VAL | S912XES384J2CAL |
|---|---|---|---|---|---|---|
| Package | 80-pin QFP, 14 x 14 mm | 80-pin QFP, 14 x 14 mm | 80-pin QFP, 14 x 14 mm | 80-pin QFP | 80-pin QFP | 80-pin QFP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| CPU Core | 16-bit S12X | S12X family candidate | S12X family candidate | S12X family candidate | S12X family candidate | S12X family candidate |
| Flash Memory | 384 KB | 384 KB family class | 384 KB family class | 256 KB | 384 KB family class | 384 KB family class |
Key Differentiators
- 50 MHz 16-bit S12X processing core (vs S912XET256J1CALR)
- 384 KB Flash memory class (vs S912XEG384J2CAL)
- Automotive-oriented temperature range (vs S912XEG384AVAGR)
Design Notes
Use the official NXP QFP 80 land pattern and preserve the manufacturer-defined pin numbering before routing. Keep the S912XEG384J3VAA power and ground connections short, place required decoupling close to the device, and reserve access for programming and test. The verified data confirms an 80-pin QFP measuring 14 x 14 mm but does not provide pin names, supply values, or capacitor recommendations; retrieve the complete datasheet before releasing the PCB.
Route the ADC inputs and reference paths away from high-current switching edges, clocks, and digital output transitions. Because the verified specification identifies a 12-bit ADC with a 3 µs conversion time, analog acquisition timing must be checked against the actual sample network and source impedance. Confirm ADC accuracy, reference voltage, sampling capacitance, and multiplexing requirements from the manufacturer datasheet.
Do not assume that an MPN sharing the S912XEG384 name is a drop-in replacement. Verify the package pinout, memory map, clock configuration, I/O levels, timer resources, communication peripherals, temperature grade, automotive qualification, and software device identifier for every substitute. The verified cross-reference search does not establish complete pin-level equivalence, so all alternatives require manufacturer-document review before substitution.
Plan the S12X CPU and XGATE workload around deterministic interrupt and memory behavior. Keep the main CPU's timing-critical paths away from unnecessary long traces, and provide clean clock and reset routing according to the official hardware guidelines. The S12X core is specified at 50 MHz, so layout and power integrity must be evaluated at the actual bus and peripheral activity expected in the finished system.
Compliance Information
The verified distributor snippet states that the S912XEG384J3VAA is automotive qualified, but the supplied data does not explicitly document RoHS, REACH, AEC-Q100 classification details, lead-free status, halogen-free status, or conflict-minerals status. Obtain the relevant NXP declarations before production release.