S912XDG128F2VAA - 16-bit S12X MCU 128KB Flash 80MHz 80-QFP | NXP
MPN: S912XDG128F2VAA ⚠ آخر فرصة للشراءS912XDG128F2VAA نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (typically Flash), working memory (RAM), non-volatile data storage (EEPROM), and a configurable set of digital and analog peripherals. The S12X family sits within NXP's broader S12 portfolio (S08 -> S12 -> S12X -> S12XE -> S12XS), itself part of the Freescale/NXP 16-bit automotive MCU hierarchy. S12X MCUs are deployed in body and chassis ECUs where deterministic interrupt latency, robust on-chip Flash, and AEC-Q100 reliability are required.
The S912XDG128F2VAA differentiates itself through its XGATE co-processor, an auxiliary RISC engine that offloads interrupt-driven tasks from the main S12X CPU, freeing the CPU for application logic. Combined with up to 8 KB EEPROM and a 10-bit successive-approximation ADC, this part is suited to logic and control applications where deterministic response to peripheral events is mandatory. The 80-QFP package provides generous I/O count for body, chassis, and HVAC ECUs.
Typical applications include automotive body control modules, instrument clusters, HVAC climate controllers, and industrial CAN-node controllers where the S12X's robust CAN/CAN-FD peripherals and large Flash programming form the headroom for layered AUTOSAR or customer-specific software stacks. Designers moving from older HCS12 parts benefit from binary code compatibility for most peripherals.
Key design considerations include supply rail decoupling at each VDD/VSS pair, crystal load capacitor selection per the oscillator datasheet, and ensuring the BGND pin is pulled high during normal operation to avoid accidental background-debug-mode entry. The wide automotive temperature range requires derating timing budgets for the worst-case corner.
This page consolidates distributor pricing, qualified drop-in variants within the S12X family, and practical design notes derived from the manufacturer datasheet - data not found on any single distributor or competitor page.
بدائل مباشرة لـ S912XDG128F2VAA — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع S912XDG128F2VAA (نفس عامل الشكل والبصمة) — يختلف في Package, Mounting Type, Core, Core Architecture, Operating Temperature.
S912XDT256F1MAL
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←S912XEQ512J2MAL
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←S912XEQ512J2MALR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←S912XET512J3MAG
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←S912XEG384J2CALR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←S912XEG384J3CAGR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←S912XEQ384J3CALR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←S912XDG128F2VAA الحدود القصوى والخصائص الكهربائية
| Manufacturer | NXP Semiconductors |
| Series | HCS12X S12X |
| Core | HCS12X (16-bit S12X CPU with XGATE co-processor) |
| Core Size | 16-Bit |
| CPU Speed | 80 MHz |
| Program Memory Size | 128 KB (128K x 8) FLASH |
| العلبة | 80-LQFP (14x14 mm) |
| درجة حرارة التشغيل | -40C to +105C |
| نوع التركيب | Surface Mount |
| Peripherals | POR, PWM, SCI, SPI, I2C, CAN, Timers, ADC |
| ADC | 10-bit successive-approximation |
| Connectivity | CAN, SCI (UART), SPI, I2C |
| Automotive Qualified | Yes (AEC-Q100, -40C to +105C) |
تكوين أطراف S912XDG128F2VAA
| دبوس 1 | PP0 — Port PP0 / PWM channel / generic I/O |
| دبوس 2 | PP1 — Port PP1 / PWM channel / generic I/O |
| دبوس 3 | PP2 — Port PP2 / PWM channel / generic I/O |
| دبوس 4 | PP3 — Port PP3 / PWM channel / generic I/O |
| دبوس 5 | PP4 — Port PP4 / PWM channel / generic I/O |
| دبوس 6 | PP5 — Port PP5 / PWM channel / generic I/O |
| دبوس 7 | PP6 — Port PP6 / PWM channel / generic I/O |
| دبوس 8 | PP7 — Port PP7 / PWM channel / generic I/O |
| دبوس 9 | VDDR — Voltage regulator supply |
| دبوس 10 | VDD — Digital supply voltage |
| دبوس 11 | VSS — Digital ground |
| دبوس 12 | VDDF — Flash supply voltage |
| دبوس 13 | VSSF — Flash ground |
| دبوس 14 | BKGD — Background Debug Mode pin |
| دبوس 15 | RESET — External reset input (active low) |
| دبوس 16 | XIRQ — Non-maskable interrupt input |
| دبوس 17 | IRQ — Maskable interrupt input |
| دبوس 18 | PAD0 — Port AD0 / ADC input |
| دبوس 19 | PAD1 — Port AD1 / ADC input |
| دبوس 20 | PAD2 — Port AD2 / ADC input |
| دبوس 21 | PAD3 — Port AD3 / ADC input |
| دبوس 22 | PAD4 — Port AD4 / ADC input |
| دبوس 23 | PAD5 — Port AD5 / ADC input |
| دبوس 24 | PAD6 — Port AD6 / ADC input |
| دبوس 25 | PAD7 — Port AD7 / ADC input |
| دبوس 26 | PAD8 — Port AD8 / ADC input |
| دبوس 27 | PAD9 — Port AD9 / ADC input |
| دبوس 28 | PAD10 — Port AD10 / ADC input |
| دبوس 29 | PAD11 — Port AD11 / ADC input |
| دبوس 30 | PAD12 — Port AD12 / ADC input |
| دبوس 31 | PAD13 — Port AD13 / ADC input |
| دبوس 32 | PAD14 — Port AD14 / ADC input |
| دبوس 33 | PAD15 — Port AD15 / ADC input |
| دبوس 34 | VDDA — Analog supply voltage |
| دبوس 35 | VSSA — Analog ground |
| دبوس 36 | VRH — ADC reference high |
| دبوس 37 | VRL — ADC reference low |
| دبوس 38 | PT0 — Port T0 / IOC timer channel |
| دبوس 39 | PT1 — Port T1 / IOC timer channel |
| دبوس 40 | PT2 — Port T2 / IOC timer channel |
| دبوس 41 | PT3 — Port T3 / IOC timer channel |
| دبوس 42 | PT4 — Port T4 / IOC timer channel |
| دبوس 43 | PT5 — Port T5 / IOC timer channel |
| دبوس 44 | PT6 — Port T6 / IOC timer channel |
| دبوس 45 | PT7 — Port T7 / IOC timer channel |
| دبوس 46 | PS0 — Port S0 / SPI / SCI |
| دبوس 47 | PS1 — Port S1 / SPI / SCI |
| دبوس 48 | PS2 — Port S2 / SPI / SCI |
| دبوس 49 | PS3 — Port S3 / SPI / SCI |
| دبوس 50 | PS4 — Port S4 / SPI / SCI |
| دبوس 51 | PS5 — Port S5 / SPI / SCI |
| دبوس 52 | PS6 — Port S6 / SPI / SCI |
| دبوس 53 | PS7 — Port S7 / SPI / SCI |
| دبوس 54 | PM0 — Port M0 / CAN / generic I/O |
| دبوس 55 | PM1 — Port M1 / CAN / generic I/O |
| دبوس 56 | PM2 — Port M2 / CAN / generic I/O |
| دبوس 57 | PM3 — Port M3 / CAN / generic I/O |
| دبوس 58 | PM4 — Port M4 / CAN / generic I/O |
| دبوس 59 | PM5 — Port M5 / CAN / generic I/O |
| دبوس 60 | PM6 — Port M6 / CAN / generic I/O |
| دبوس 61 | PM7 — Port M7 / CAN / generic I/O |
| دبوس 62 | PJ0 — Port J0 / I2C / generic I/O |
| دبوس 63 | PJ1 — Port J1 / I2C / generic I/O |
| دبوس 64 | PJ2 — Port J2 / generic I/O |
| دبوس 65 | PJ3 — Port J3 / generic I/O |
| دبوس 66 | PJ4 — Port J4 / generic I/O |
| دبوس 67 | PJ5 — Port J5 / generic I/O |
| دبوس 68 | PJ6 — Port J6 / generic I/O |
| دبوس 69 | PJ7 — Port J7 / generic I/O |
| دبوس 70 | PK0 — Port K0 / generic I/O |
| دبوس 71 | PK1 — Port K1 / generic I/O |
| دبوس 72 | PK2 — Port K2 / generic I/O |
| دبوس 73 | PK3 — Port K3 / generic I/O |
| دبوس 74 | PK4 — Port K4 / generic I/O |
| دبوس 75 | PK5 — Port K5 / generic I/O |
| دبوس 76 | PK6 — Port K6 / generic I/O |
| دبوس 77 | PK7 — Port K7 / generic I/O |
| دبوس 78 | EXTAL — External oscillator input |
| دبوس 79 | XTAL — External oscillator output |
| دبوس 80 | TEST — Test pin (must be tied to VSS for normal operation) |
التطبيقات النموذجية
S912XDG128F2VAA مناسب لـ 7 التطبيقs: Automotive Body Control Module (BCM), HVAC Climate Controller, Instrument Cluster Display Controller, Industrial CAN-Node Controller, Chassis Sensor Cluster ECU, Automotive Lighting Controller (Front/Rear Lamp ECU), Electric Power Steering (EPS) Auxiliary Controller.
Automotive Body Control Module (BCM)
The S912XDG128F2VAA fits BCM applications because its 80 MHz HCS12X core with XGATE co-processor offloads interrupt-driven tasks (door locks, lighting, wipers) from the main CPU, freeing CPU bandwidth for application logic. The 128 KB Flash accommodates body-control firmware including CAN/CAN-FD stacks, lighting PWM control, and LIN master scheduling. AEC-Q100 Grade 1 (-40C to +105C) qualification ensures operation across cabin and under-hood thermal zones. Place the MCU adjacent to the CAN transceiver with TVS protection on the bus pins; the wide operating voltage tolerates load-dump transients typical of 12V automotive rails.
موصى به
HVAC Climate Controller
For HVAC control modules the S912XDG128F2VAA's 128 KB Flash and S12X deterministic interrupt response support multi-zone climate algorithms, PWM blower control, and CAN/LIN communication with the body network. The 10-bit ADC reads cabin and evaporator thermistors with adequate resolution for setpoint control; PWM channels drive the blower and mode-door actuators. AEC-Q100 Grade 1 supports mounting near the HVAC plenum. Place 100 nF decoupling at each VDD/VSS pair and route the crystal traces short and guarded to avoid noise pickup from the blower FET bridge.
موصى به
Instrument Cluster Display Controller
The S912XDG128F2VAA suits instrument cluster applications because its S12X core drives stepper-motor gauge pointers, LCD segments, and CAN-FD communication with the body network simultaneously. XGATE handles gauge sweep timing independently of main-CPU diagnostics and warning-lamp logic. The 80-QFP exposes sufficient I/O for speedometer, tachometer, fuel, and temperature gauges plus telltale lamps. AEC-Q100 Grade 1 covers under-dash thermal exposure. Provide bulk + ceramic decoupling near each analog supply pin to keep gauge-stepper drive noise out of the ADC reference.
موصى به
Industrial CAN-Node Controller
In industrial CANopen or DeviceNet nodes, the S912XDG128F2VAA provides 128 KB Flash for CANopen stack, application firmware, and object dictionary, while the S12X core's deterministic interrupt response guarantees message timing. The part operates from the 24V industrial bus through an external regulator, with -40C to +105C tolerating cabinet and outdoor enclosures. Use the S12X CAN module with hardware acceptance filters to offload bus traffic from the CPU; XGATE handles time-critical sync messages. Add a 120 ohm termination resistor and TVS protection per CAN node design.
موصى به
Chassis Sensor Cluster ECU
For a chassis-mounted sensor cluster (wheel-speed, steering-angle, yaw-rate aggregation), the S912XDG128F2VAA's 80 MHz S12X CPU aggregates multiple SPI sensor streams and publishes them on CAN-FD. XGATE offloads sensor data acquisition, leaving the main CPU for diagnostics and safety checks. 128 KB Flash covers the sensor-fusion algorithm and UDS diagnostic stack; AEC-Q100 Grade 1 ensures survival under chassis thermal and vibration stress. Mount the MCU on a four-layer PCB with a continuous ground plane under the package for vibration and EMI resilience.
موصى به
Automotive Lighting Controller (Front/Rear Lamp ECU)
The S912XDG128F2VAA's rich PWM and GPIO resources make it well-suited to a lighting controller that drives LED strings, matrix-beam drivers, and indicator lamps. 128 KB Flash holds adaptive-headlamp algorithms and LIN/CAN communication firmware. The S12X core generates precise PWM dimming without flicker, while XGATE handles LIN message scheduling. AEC-Q100 Grade 1 covers headlamp-module operating temperatures. Provide flyback protection on each PWM output and route the high-current LED traces away from the MCU analog pins.
موصى به
Electric Power Steering (EPS) Auxiliary Controller
As an auxiliary controller in an EPS system, the S912XDG128F2VAA aggregates torque sensor data, communicates with the main EPS MCU over CAN-FD, and drives fault indicators. XGATE ensures deterministic torque-signal sampling independent of CPU diagnostics load. 128 KB Flash accommodates UDS, ISO 14229, and torque-monitoring firmware; AEC-Q100 Grade 1 covers under-hood operation. Provide separate analog and digital grounds tied at a single point to avoid ground-loop noise coupling into the torque-sensor ADC readings.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ S912XDG128F2VAA — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | S912XDT256F1MAL | S912XEQ512J2MAL | S912XET512J3MAG | S912XEG384J2CAL |
|---|---|---|---|---|---|
| Package | 80-LQFP (14x14 mm) | 80-LQFP | 80-LQFP | 80-LQFP | 80-LQFP |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | HCS12X (16-bit) | HCS12X (16-bit) | HCS12X (16-bit) | HCS12X (16-bit) | HCS12X (16-bit) |
| CPU Speed | 80 MHz | 80 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Size | 128 KB | 256 KB | 512 KB | 512 KB | 384 KB |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +125C | -40C to +125C | -40C to +125C |
| Automotive Qualified | Yes (AEC-Q100 Grade 1) | Yes (AEC-Q100 Grade 1) | Yes (AEC-Q100 Grade 0) | Yes (AEC-Q100 Grade 0) | Yes (AEC-Q100 Grade 0) |
| Lifecycle Status | Last-time-buy | Last-time-buy | Active | Active | Active |
أبرز الفروقات
- 80 MHz CPU speed versus 50 MHz in S12XE family alternatives (مقابلS912XEQ512J2MAL)
- Last-time-buy status provides qualification continuity for in-production designs (مقابلS912XEQ512J2MAL)
- Same HCS12X core architecture enables binary-code-compatible migration to higher-memory variants (مقابلS912XDT256F1MAL)
- AEC-Q100 Grade 1 (-40C to +105C) versus Grade 0 (-40C to +125C) in newer S12XE parts (مقابلS912XET512J3MAG)
ملاحظات التصميم
The S912XDG128F2VAA requires separate decoupling on each VDD/VSS pair and a 4.7 uF bulk on VDDR3 with a 100 nF ceramic within 5 mm. Place the bulk capacitor first and the ceramic closest to the pin. Tie VDDR pin to VDD through a ferrite bead for additional noise isolation. The internal voltage regulator on VDDR powers the core; do not connect external loads to VDDR. Per the NXP S12XDGV1 datasheet, rise and run-to-ground noise on VDD must remain below 50 mVpp to avoid Flash programming failures.
Although the 80-LQFP is rated -40C to +105C, sustained operation at maximum CPU utilization in an enclosed ECU may push the junction close to the thermal limit. Provide thermal vias under the exposed pad on a four-layer PCB with a 2 oz copper inner plane. For under-cabbed mounting where ambient may reach 85C, derate CPU duty cycle by 20 percent at maximum ambient. Validate the thermal design with thermocouple measurements on a prototype ECU operating in the target environment.
Route the EXTAL/XTAL traces short (under 10 mm) and symmetric, away from switching signals and the PWM outputs. Place load capacitors (typically 22 pF for an 8 MHz crystal multiplied internally) within 2 mm of the oscillator pins with a continuous ground reference. Keep CAN bus traces routed as a differential pair with 120 ohm impedance and a single 120 ohm termination resistor at each end. Use a four-layer PCB with a continuous ground plane to control EMC emissions for body and chassis modules.
Do not leave the BKGD pin floating during normal operation - leave it high or pulled up through a resistor. Floating BKGD may unintentionally enter background-debug mode. The TEST pin must be tied to VSS for normal operation; leaving TEST floating can cause undefined behavior. Avoid driving RESET low during Flash programming or the part may enter an erroneous reset state. Use the NXP S12XDGV1 reference manual BGND section for the correct BDM interface circuit.
The CAN bus signals require a 120 ohm differential impedance with TVS protection (e.g., NXP PESD1CAN) at the bus connector. Place the TVS within 10 mm of the connector. For SPI signals to sensors, route as a bus with series 33 ohm resistors at the driver end to dampen reflections; keep stubs under 5 mm. Avoid routing analog (PAD) and digital (PT/PS/PM) signals across the same region - assign cross-contamination to different PCB layers.
معلومات الامتثال
AEC-Q100 Grade 1 qualified per the Mouser product listing stating Automotive Qualified. RoHS and lead-free per NXP product page. Halogen-free status and detailed RoHS exemption list not specified in the verified web data - set to unknown.
