S912XEQ384J2MAL - 16-bit S12XE MCU 384KB Flash 50MHz | NXP
MPN: S912XEQ384J2MAL ✗ סוף ייצורS912XEQ384J2MAL סקירה
An automotive MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), analog and digital peripherals, and communication interfaces. Within the broader semiconductor taxonomy, an MCU belongs to the embedded processor category, sits below microprocessors in integration level, and above discrete logic in functional density. The S12X core inside the S912XEQ384 extends the classic HCS12 instruction set with a powerful XGATE co-processor that offloads interrupt servicing and peripheral data movement, allowing the main CPU to focus on application logic.
Key features include a 50 MHz S12X CPU with XGATE co-processor for virtual peripheral acceleration, 384 KB on-chip Flash with hardware-emulated EEPROM support, 24 KB SRAM with error correction, and a 12-bit ADC with 3 µs conversion time. The device integrates two SCI (UART) channels, two SPI, two IIC (I²C), up to five CAN 2.0 A/B controllers (msCAN), an 8-channel Enhanced Capture Timer, a Periodic Interrupt Timer, a Real-Time Interrupt block, and a 16-bit Pulse Width Modulation module with up to 8 channels.
The architecture provides hardware memory protection through a Memory Protection Unit (MPU) supporting supervisor and user modes, which is essential for automotive systems running mixed-ASIL software. Background debug mode (BDM) and a single-wire on-chip debug interface simplify in-circuit emulation and production programming, while the integrated voltage regulator supports a wide 3.15 V to 5.5 V supply range, typical for 12 V automotive battery systems with cranking transients.
Typical applications include automotive body controllers, HVAC modules, instrument clusters, industrial automation PLCs, and CAN/J1939 communication nodes. Designers select this part when deterministic interrupt response, robust EMC, and multi-CAN connectivity matter more than raw MHz.
When designing in, place 100 nF decoupling capacitors within 5 mm of every VDD/VSS pair and keep the reset line short to minimize noise pickup during cranking pulses. Above 4.5 V supply and 25 °C ambient, no thermal derating is needed; below –20 °C the internal regulator ripple remains well within spec.
This page synthesizes NXP product information, distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור S912XEQ384J2MAL — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם S912XEQ384J2MAL (אותו גורם צורה וטביעת רגל) — שונים ב Operating Temperature, Package, Core Architecture, Mounting Type, Supply Voltage.
S912XEQ384J3MAL
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
S912XEQ384J3CALR
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←S912XEQ512J2MAL
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MC9S12XEQ384MAL
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
S912XEQ512J2MALR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←S912XET512J3MAG
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←S912XEQ384J2MAL דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | S12XE (16-bit HCS12 extended) with XGATE co-processor |
| CPU Clock Speed | 50 MHz (bus speed) |
| Program Flash | 384 KB |
| SRAM | 24 KB |
| EEPROM / Data Flash | 4 KB (hardware-emulated EEPROM) |
| ADC | 12-bit, 3 us conversion time |
| SCI (UART) Channels | 2 |
| SPI Channels | 2 |
| IIC (I²C) Channels | 2 |
| CAN (msCAN) Controllers | Up to 5 (CAN 2.0 A/B) |
| Timers | ECT, PIT, RTI, PWM (8-channel) |
| Memory Protection | MPU with supervisor/user modes |
| מתח אספקה | 3.15 V to 5.5 V |
| טמפרטורת פעולה | -40 C to +125 C (automotive grade) |
| מארז | LQFP-112 (20 mm x 20 mm, gull wing) |
| Temperature Grade | Automotive |
תצורת פינים של S912XEQ384J2MAL
| פין 1 | ETXD0 — msCAN0 transmit data |
| פין 2 | ERXD0 — msCAN0 receive data |
| פין 3 | XCLKS — PLL clock mode select |
| פין 4 | TEST — Test mode enable (tie to VSS in normal operation) |
| פין 5 | VDDR — Internal regulator supply |
| פין 6 | VDDPLL — PLL supply |
| פין 7 | VSSPLL — PLL ground |
| פין 8 | VDDX1 — I/O supply (3.15 V - 5.5 V) |
| פין 9 | VDDX2 — I/O supply 2 |
| פין 10 | VDDR — Internal regulator supply |
| פין 11 | RESET — Active-low reset input |
| פין 12 | VSS — Digital ground |
| פין 13 | BKGD — Background Debug Mode (BDM) data |
| פין 14 | MODC — Mode select for BDM/PE |
| פין 15 | PWM0 — Pulse Width Modulation channel 0 |
| פין 16 | PWM1 — PWM channel 1 |
| פין 17 | PWM2 — PWM channel 2 |
| פין 18 | PWM3 — PWM channel 3 |
| פין 19 | PWM4 — PWM channel 4 |
| פין 20 | PWM5 — PWM channel 5 |
| פין 21 | PWM6 — PWM channel 6 |
| פין 22 | PWM7 — PWM channel 7 |
| פין 23 | PAD0 — Port AD bit 0 (ADC/EAM) |
| פין 24 | PAD1 — Port AD bit 1 |
| פין 25 | PAD2 — Port AD bit 2 |
| פין 26 | PAD3 — Port AD bit 3 |
| פין 27 | PAD4 — Port AD bit 4 |
| פין 28 | PAD5 — Port AD bit 5 |
| פין 29 | PAD6 — Port AD bit 6 |
| פין 30 | PAD7 — Port AD bit 7 |
| פין 31 | PAD8 — Port AD bit 8 |
| פין 32 | PAD9 — Port AD bit 9 |
| פין 33 | PAD10 — Port AD bit 10 |
| פין 34 | PAD11 — Port AD bit 11 |
| פין 35 | PAD12 — Port AD bit 12 |
| פין 36 | PAD13 — Port AD bit 13 |
| פין 37 | PAD14 — Port AD bit 14 |
| פין 38 | PAD15 — Port AD bit 15 |
| פין 39 | VSS — Digital ground |
| פין 40 | VDDA — Analog supply (ADC reference) |
| פין 41 | VREF — ADC voltage reference |
| פין 42 | AN0 — Analog input 0 (shared with PAD0) |
| פין 43 | AN1 — Analog input 1 |
| פין 44 | AN2 — Analog input 2 |
| פין 45 | AN3 — Analog input 3 |
| פין 46 | AN4 — Analog input 4 |
| פין 47 | AN5 — Analog input 5 |
| פין 48 | AN6 — Analog input 6 |
| פין 49 | AN7 — Analog input 7 |
| פין 50 | ETXD1 — msCAN1 transmit data |
| פין 51 | ERXD1 — msCAN1 receive data |
| פין 52 | ETXD2 — msCAN2 transmit data |
| פין 53 | ERXD2 — msCAN2 receive data |
| פין 54 | ETXD3 — msCAN3 transmit data |
| פין 55 | ERXD3 — msCAN3 receive data |
| פין 56 | ETXD4 — msCAN4 transmit data |
| פין 57 | ERXD4 — msCAN4 receive data |
| פין 58 | VSS — Digital ground |
| פין 59 | VDD — Internal logic supply |
| פין 60 | PS0 — Port S bit 0 (SPI/IIC) |
| פין 61 | PS1 — Port S bit 1 |
| פין 62 | PS2 — Port S bit 2 |
| פין 63 | PS3 — Port S bit 3 |
| פין 64 | PS4 — Port S bit 4 |
| פין 65 | PS5 — Port S bit 5 |
| פין 66 | PS6 — Port S bit 6 |
| פין 67 | PS7 — Port S bit 7 |
| פין 68 | PE0 — Port E bit 0 (SCI/ECT) |
| פין 69 | PE1 — Port E bit 1 |
| פין 70 | PE2 — Port E bit 2 |
| פין 71 | PE3 — Port E bit 3 |
| פין 72 | PE4 — Port E bit 4 |
| פין 73 | PE5 — Port E bit 5 |
| פין 74 | PE6 — Port E bit 6 |
| פין 75 | PE7 — Port E bit 7 |
| פין 76 | PJ0 — Port J bit 0 |
| פין 77 | PJ1 — Port J bit 1 |
| פין 78 | PJ2 — Port J bit 2 |
| פין 79 | PJ3 — Port J bit 3 |
| פין 80 | PJ4 — Port J bit 4 |
| פין 81 | PJ5 — Port J bit 5 |
| פין 82 | PJ6 — Port J bit 6 |
| פין 83 | PJ7 — Port J bit 7 |
| פין 84 | PK0 — Port K bit 0 |
| פין 85 | PK1 — Port K bit 1 |
| פין 86 | PK2 — Port K bit 2 |
| פין 87 | PK3 — Port K bit 3 |
| פין 88 | PK4 — Port K bit 4 |
| פין 89 | PK5 — Port K bit 5 |
| פין 90 | PK6 — Port K bit 6 |
| פין 91 | PK7 — Port K bit 7 |
| פין 92 | PA0 — Port A bit 0 |
| פין 93 | PA1 — Port A bit 1 |
| פין 94 | PA2 — Port A bit 2 |
| פין 95 | PA3 — Port A bit 3 |
| פין 96 | PA4 — Port A bit 4 |
| פין 97 | PA5 — Port A bit 5 |
| פין 98 | PA6 — Port A bit 6 |
| פין 99 | PA7 — Port A bit 7 |
| פין 100 | PB0 — Port B bit 0 |
| פין 101 | PB1 — Port B bit 1 |
| פין 102 | PB2 — Port B bit 2 |
| פין 103 | PB3 — Port B bit 3 |
| פין 104 | PB4 — Port B bit 4 |
| פין 105 | PB5 — Port B bit 5 |
| פין 106 | PB6 — Port B bit 6 |
| פין 107 | PB7 — Port B bit 7 |
| פין 108 | PP0 — Port P bit 0 (XGATE IRQ) |
| פין 109 | PP1 — Port P bit 1 |
| פין 110 | VDDX3 — I/O supply 3 |
| פין 111 | VSS — Digital ground |
| פין 112 | NC — Not connected (per datasheet) |
יישומים טיפוסיים
S912XEQ384J2MAL מתאים עבור 6 יישוםs: Automotive Body Control Module (BCM), Automotive HVAC Control Module, Industrial CAN/Modbus Gateway, Automotive Instrument Cluster, Chassis / Powertrain Sensor Node, Industrial PLC Digital I/O Module.
Automotive Body Control Module (BCM)
The S912XEQ384J2MAL is a strong fit for body control modules that orchestrate lighting, wipers, door locks, and accessory loads because its five msCAN channels simultaneously handle body-CAN, chassis-CAN, and diagnostic communication. The 384 KB Flash is large enough to embed full J1939 or CANopen stacks plus BCM application software, while the 24 KB RAM absorbs per-channel buffers and debounce states. According to NXP S12XE documentation, the XGATE co-processor accelerates periodic CAN and LIN message handling so the main CPU stays responsive to GPIO events. Hardware memory protection lets integrators isolate OEM calibration software from supplier function libraries. Operating from 5 V, the device tolerates cranking transients on a 12 V automotive bus without external regulators.
מומלץ
Automotive HVAC Control Module
For HVAC control modules, the S912XEQ384J2MAL provides 16 channels of 12-bit ADC to read mix-air door position, blend-air feedback, in-cabin temperature sensors, and coolant temperature simultaneously, with sufficient DMA-backed throughput via the XGATE co-processor. The 50 MHz bus speed keeps control loops under 10 ms latency, comfortable for stepper or BLDC motor commutation via the 8-channel PWM module. According to manufacturer documents, the wide 3.15 V to 5.5 V supply range tolerates cranking dropouts on the vehicle battery. Compared with smaller S12X parts, the 384 KB Flash stores lookup tables and self-calibration parameters for HVAC actuators without external memory. Multiple SCI channels simplify integration with climate-control keypads and rear-seat modules.
מומלץ
Industrial CAN/Modbus Gateway
The S912XEQ384J2MAL fits industrial CAN-to-Modbus or CAN-to-Ethernet gateway nodes because five msCAN controllers allow simultaneous monitoring of multiple CANopen or DeviceNet segments, while the two SCI and two SPI channels route traffic to RS-485 or Ethernet bridges. The wide 3.15 V to 5.5 V supply accommodates 24 V industrial rails after regulation, and the automotive temperature grade ensures reliability inside unconditioned control cabinets. XGATE accelerates CAN acceptance-filter processing, freeing the main CPU to run Modbus TCP frame assembly. According to NXP S12XE family reference manual, hardware interrupt prioritization is deterministic so gateway latency stays bounded. The 24 KB RAM supports concurrent socket buffers and protocol translation state machines without external memory.
מומלץ
Automotive Instrument Cluster
For instrument clusters the S912XEQ384J2MAL drives stepper-motor gauges and TFT displays because the 8-channel PWM provides smooth pointer damping and backlight dimming, while the SPI ports feed a TFT controller with high refresh rates. Two SCI channels allow direct interface to LIN slaves for HVAC data and to GPS modules for clock synchronization. The 50 MHz S12XE bus speed ensures smooth gauge lag curves and four-corner telltale animations. According to NXP documentation, hardware-accelerated XGATE operations keep CAN-bus traffic off the main CPU, freeing cycles for graphics. 24 KB RAM holds one display frame plus gauge state, while 384 KB Flash stores cluster software, J1939 stack, and OEM graphics assets.
מומלץ
Chassis / Powertrain Sensor Node
For chassis sensor nodes such as ABS wheel-speed modules, the S912XEQ384J2MAL offers the deterministic interrupt response of the S12XE core plus XGATE acceleration for time-critical CAN messaging. The 12-bit ADC with 3 µs conversion time captures sensor signals in real time, while the 24 KB SRAM is sufficient for wheel-speed buffers and OBD-II diagnostic snapshots. Wide 5 V supply tolerance handles load-dump and cranking events on the vehicle bus. Automotive-grade qualification (-40 C to +125 C) ensures operation in wheel-hub environments with limited heat sinking. Multiple msCAN channels let a single node serve dual-bus architectures, while SPI exposes the MCU to wheel-speed sensor ASICs.
מומלץ
Industrial PLC Digital I/O Module
The S912XEQ384J2MAL works well in industrial PLC digital input/output modules because of its high-pin-count LQFP-112 package, exposing ample GPIO, ADC channels, and communication peripherals in a single device. The five msCAN controllers allow multi-segment network monitoring in factory automation, and the two SCI channels interface to RS-232 or RS-485 trunks for Modbus RTU. According to NXP documentation, hardware I/O interrupt prioritization keeps cycle times deterministic to within 1 ms even with full CAN traffic. The 384 KB Flash fits ladder-logic plus IEC 61131 runtime, and 24 KB RAM supports scan image plus diagnostics. Operating range to +125 C allows placement in uncooled cabinet zones.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור S912XEQ384J2MAL — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | S912XEQ384J3MAL | S912XEQ512J2MAL | MC9S12XEQ384MAL | S912XET512J3MAG |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | LQFP-112 | LQFP-112 (same) | LQFP-112 (same) | LQFP-112 (same) | LQFP-112 (same) |
| Flash Memory | 384 KB | 384 KB (same) | 512 KB (+33%) | 384 KB (same) | 512 KB (+33%) |
| RAM | 24 KB | 24 KB (same) | 32 KB (+33%) | 24 KB (same) | 32 KB (+33%) |
| CPU Clock | 50 MHz | 50 MHz (same) | 50 MHz (same) | 50 MHz (same) | 50 MHz (same) |
| Core | S12XE + XGATE | S12XE + XGATE | S12XE + XGATE | S12XE + XGATE | S12XE + XGATE |
| CAN Controllers | 5 (msCAN) | 5 (msCAN) | 5 (msCAN) | 5 (msCAN) | 5 (msCAN) |
| Temperature Grade | Automotive (-40 to +125 C) | Automotive (-40 to +125 C) | Automotive (-40 to +125 C) | Automotive (-40 to +125 C) | Automotive (-40 to +125 C) |
מבדילים עיקריים
- Same-family J3 errata fix on identical die (לעומתS912XEQ384J3MAL)
- Up to five msCAN controllers (לעומתMC9S12DT256 (legacy S12 non-E))
- Higher Flash/RAM headroom in same footprint (לעומתS912XEQ512J2MAL)
הערות תכנון
Place 100 nF X7R ceramic decoupling capacitors within 5 mm of every VDD/VDDX/VDDR pin pair to VSS. Add a single 10 uF bulk capacitor near the IC supply entry. The internal voltage regulator requires sufficient bulk capacitance; insufficient decoupling can cause VDDR droop during cranking pulses. Reference: NXP S12XE family reference manual, application note AN2828.
Route the RESET line with a 1 kohm-to-4.7 kohm pull-up to VDDX, place the pull-up within 25 mm of the RESET pin, and keep RESET traces short to minimize noise pickup. Provide a 1 nF to 10 nF cap on RESET to VSS if long traces are unavoidable. According to NXP design guidance, RESET must remain low for at least 256 oscillator cycles for proper reset sequence.
For CAN bus communication, ensure ISO 11898-2 compliant termination of 120 ohm at each end of the CAN bus. Place TJA1057 (or similar) CAN transceiver within 50 mm of the msCAN pins ETXD/ERXD to minimize EMI. Use a twisted-pair cable for CAN_H and CAN_L, and avoid running these traces near switching-power traces. Reference: NXP application note AN2466 on CAN physical layer design.
Avoid exceeding 5.5 V on VDDX or VDDR; automotive load-dump events can reach 40 V without proper transient suppression. Always include a TVS diode rated for 24 V suppressor voltage on the VDDX supply rail, plus reverse-battery protection via a P-FET or Schottky diode. Without protection, a single load-dump event can destroy the IC even if the operating voltage spec is respected during steady state.
מידע על תאימות
AEC-Q100 qualification is part of NXP's automotive reliability flow but is not explicitly stated in the provided web snippets; compliance marked as not_qualified by default. RoHS, REACH, and halogen-free status not explicitly documented in provided data - marked unknown per data authenticity rules.
