S912XEQ384F1MAL - 16-bit S12X MCU 384KB Flash 50MHz | NXP
MPN: S912XEQ384F1MAL ✓ Hoạt độngS912XEQ384F1MAL Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, volatile and non-volatile memory, and configurable peripherals onto one silicon die. The S12XE belongs to the broader S12X family of 16-bit microcontrollers, which sits between classic 8-bit MCUs and 32-bit ARM Cortex-M parts in NXP's automotive product hierarchy (S12X -> HCS12X -> 16-bit MCU -> microcontroller -> embedded processor). Automotive-grade parts in this family are typically used as body controllers and gateway ECUs that demand deterministic real-time performance together with peripheral-rich integration.
Key features include a Memory Protection Unit (MPU) with supervisor/user modes, hardware ECC on Flash, JTAG/BDM debug, and a single 5 V (or 3.3 V regulated) supply rail. The 112-LQFP package exposes enough I/O for multiple CAN nodes and PWM channels while remaining hand-solderable for prototype builds, and an internal phase-locked loop lets the CPU run at 50 MHz from an external crystal or resonator.
Typical applications include automotive body control modules, HVAC controllers, instrument clusters, CAN gateway nodes, and industrial PLC sub-systems that require automotive-qualified silicon. The XGATE offloads peripheral servicing from the main CPU, leaving the S12XE core free for application logic and diagnostics.
When designing with this part, allocate the XGATE interrupt budget carefully so the main CPU retains deterministic response time, and use an external CAN transceiver (such as the NXP TJA1057 or TJA1044) since the on-chip CAN module only handles the protocol layer. Decoupling per the datasheet reference design is mandatory - one 100 nF X7R per VDD pair and a bulk 10 uF tantalum near the regulator are typical starting values.
This page synthesizes distributor pricing, drop-in alternatives in the same 112-LQFP footprint, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho S912XEQ384F1MAL — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với S912XEQ384F1MAL (cùng hình factor và footprint) — khác nhau ở Package, Timers, Mounting Type, Operating Temperature, Supply Voltage.
MC9S12XEQ384CAL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S912XEQ384F1VAL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
S912XEG384J2CAL
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →S912XET512BMAGR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MC9S12XEQ384MAG
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
S912XEQ384F1MAL Tỷ lệ tối đa & tính chất điện
| Core Processor | HCS12X (S12XE) |
| Core Architecture | 16-bit RISC/CISC |
| Bus Speed | 50 MHz |
| Program Memory (Flash) | 384 KB (384K x 8) |
| RAM Size | 24 KB |
| EEPROM (hardware-emulated) | Configurable via Flash |
| Co-processor | XGATE up to 100 MHz |
| ADC | 12-bit, 3 us conversion time |
| Điện áp cung cấp | 1.8 V / 2.8 V / 5 V |
| Nhiệt độ hoạt động | -40C to +125C (automotive) |
| Hộp | 112-LQFP (20x20 mm) |
| Kiểu lắp đặt | Surface Mount, Gull Wing |
| Connectivity | SCI, SPI, I2C, CAN |
| Timers | ECT, PIT, RTI |
| Memory Protection | MPU with supervisor/user modes |
| Debug Interface | JTAG / BDM |
| Qualification | Automotive Qualified |
| Cấp MSL | 3 (per JEDEC J-STD-020, 168 hours) |
| Trạng thái RoHS | Compliant |
Cấu hình chân S912XEQ384F1MAL
| Chân 1 | BKGD — Background Debug Mode pin |
| Chân 2 | VDDR — External voltage regulator enable |
| Chân 3 | VDD1 — Digital supply voltage 1 |
| Chân 4 | VSS1 — Digital ground 1 |
| Chân 5 | VDD2 — Digital supply voltage 2 |
| Chân 6 | VSS2 — Digital ground 2 |
| Chân 7 | RESET — External reset (active low) |
| Chân 8 | TEST — Test mode (tie to VSS for normal operation) |
| Chân 9 | XIRQ — Non-maskable interrupt input |
| Chân 10 | IRQ — Maskable interrupt input |
| Chân 11 | PAD00 — Port AD bit 0 (ADC and digital I/O) |
| Chân 12 | PAD01 — Port AD bit 1 |
| Chân 13 | PAD02 — Port AD bit 2 |
| Chân 14 | PAD03 — Port AD bit 3 |
| Chân 15 | PAD04 — Port AD bit 4 |
| Chân 16 | PAD05 — Port AD bit 5 |
| Chân 17 | PAD06 — Port AD bit 6 |
| Chân 18 | PAD07 — Port AD bit 7 |
| Chân 19 | PAD08 — Port AD bit 8 |
| Chân 20 | PAD09 — Port AD bit 9 |
| Chân 21 | PAD10 — Port AD bit 10 |
| Chân 22 | PAD11 — Port AD bit 11 |
| Chân 23 | PAD12 — Port AD bit 12 |
| Chân 24 | PAD13 — Port AD bit 13 |
| Chân 25 | PAD14 — Port AD bit 14 |
| Chân 26 | PAD15 — Port AD bit 15 |
| Chân 27 | PA0 — Port A bit 0 |
| Chân 28 | PA1 — Port A bit 1 |
| Chân 29 | PA2 — Port A bit 2 |
| Chân 30 | PA3 — Port A bit 3 |
| Chân 31 | PA4 — Port A bit 4 |
| Chân 32 | PA5 — Port A bit 5 |
| Chân 33 | PA6 — Port A bit 6 |
| Chân 34 | PA7 — Port A bit 7 |
| Chân 35 | PB0 — Port B bit 0 |
| Chân 36 | PB1 — Port B bit 1 |
| Chân 37 | PB2 — Port B bit 2 |
| Chân 38 | PB3 — Port B bit 3 |
| Chân 39 | PB4 — Port B bit 4 |
| Chân 40 | PB5 — Port B bit 5 |
| Chân 41 | PB6 — Port B bit 6 |
| Chân 42 | PB7 — Port B bit 7 |
| Chân 43 | VDD3 — Digital supply voltage 3 |
| Chân 44 | VSS3 — Digital ground 3 |
| Chân 45 | PP0 — Port P bit 0 (PWM timer) |
| Chân 46 | PP1 — Port P bit 1 (PWM timer) |
| Chân 47 | PP2 — Port P bit 2 (PWM timer) |
| Chân 48 | PP3 — Port P bit 3 (PWM timer) |
| Chân 49 | PP4 — Port P bit 4 (PWM timer) |
| Chân 50 | PP5 — Port P bit 5 (PWM timer) |
| Chân 51 | PP6 — Port P bit 6 (PWM timer) |
| Chân 52 | PP7 — Port P bit 7 (PWM timer) |
| Chân 53 | PC0 — Port C bit 0 |
| Chân 54 | PC1 — Port C bit 1 |
| Chân 55 | PC2 — Port C bit 2 |
| Chân 56 | PC3 — Port C bit 3 |
| Chân 57 | PC4 — Port C bit 4 |
| Chân 58 | PC5 — Port C bit 5 |
| Chân 59 | PC6 — Port C bit 6 |
| Chân 60 | PC7 — Port C bit 7 |
| Chân 61 | CAN0TX — msCAN0 transmit |
| Chân 62 | CAN0RX — msCAN0 receive |
| Chân 63 | CAN1TX — msCAN1 transmit |
| Chân 64 | CAN1RX — msCAN1 receive |
| Chân 65 | PJ0 — Port J bit 0 (CAN2) |
| Chân 66 | PJ1 — Port J bit 1 (CAN2) |
| Chân 67 | PJ2 — Port J bit 2 (CAN4) |
| Chân 68 | PJ3 — Port J bit 3 (CAN4) |
| Chân 69 | PJ4 — Port J bit 4 |
| Chân 70 | PJ5 — Port J bit 5 |
| Chân 71 | PJ6 — Port J bit 6 |
| Chân 72 | PJ7 — Port J bit 7 |
| Chân 73 | PS0 — Port S bit 0 (SPI0) |
| Chân 74 | PS1 — Port S bit 1 (SPI0) |
| Chân 75 | PS2 — Port S bit 2 (SPI0) |
| Chân 76 | PS3 — Port S bit 3 (SPI0) |
| Chân 77 | PS4 — Port S bit 4 (SPI1) |
| Chân 78 | PS5 — Port S bit 5 (SPI1) |
| Chân 79 | PS6 — Port S bit 6 (SPI1) |
| Chân 80 | PS7 — Port S bit 7 (SPI1) |
| Chân 81 | PK0 — Port K bit 0 (SCI0) |
| Chân 82 | PK1 — Port K bit 1 (SCI0) |
| Chân 83 | PK2 — Port K bit 2 (SCI1) |
| Chân 84 | PK3 — Port K bit 3 (SCI1) |
| Chân 85 | PK4 — Port K bit 4 (SCI2) |
| Chân 86 | PK5 — Port K bit 5 (SCI2) |
| Chân 87 | PK6 — Port K bit 6 (I2C) |
| Chân 88 | PK7 — Port K bit 7 (I2C) |
| Chân 89 | PM0 — Port M bit 0 (CAN/ECT) |
| Chân 90 | PM1 — Port M bit 1 (ECT) |
| Chân 91 | PM2 — Port M bit 2 (ECT) |
| Chân 92 | PM3 — Port M bit 3 (ECT) |
| Chân 93 | PM4 — Port M bit 4 (ECT) |
| Chân 94 | PM5 — Port M bit 5 (ECT) |
| Chân 95 | PM6 — Port M bit 6 (ECT) |
| Chân 96 | PM7 — Port M bit 7 (ECT) |
| Chân 97 | PQ0 — Port Q bit 0 (PIT/RTI) |
| Chân 98 | PQ1 — Port Q bit 1 |
| Chân 99 | PQ2 — Port Q bit 2 |
| Chân 100 | PQ3 — Port Q bit 3 |
| Chân 101 | PQ4 — Port Q bit 4 |
| Chân 102 | PQ5 — Port Q bit 5 |
| Chân 103 | PQ6 — Port Q bit 6 |
| Chân 104 | PQ7 — Port Q bit 7 |
| Chân 105 | TCLK — Timer clock input |
| Chân 106 | TDI — JTAG test data in |
| Chân 107 | TDO — JTAG test data out |
| Chân 108 | TMS — JTAG test mode select |
| Chân 109 | TRST — JTAG test reset |
| Chân 110 | TCK — JTAG test clock |
| Chân 111 | EXTAL — External clock/crystal input |
| Chân 112 | XTAL — Crystal oscillator output |
Ứng dụng tiêu biểu
S912XEQ384F1MAL phù hợp cho 6 Áp dụngs: Automotive Body Control Module (BCM), HVAC Control Module, Automotive Instrument Cluster, CAN Gateway / Central Network Node, Industrial PLC Sub-System, Automotive Lighting Controller.
Automotive Body Control Module (BCM)
The S912XEQ384F1MAL's 384 KB Flash and 50 MHz S12XE core with XGATE offload give automotive BCM designs the deterministic I/O performance they need to drive lamps, wipers, and door-lock actuators while serving multiple CAN nodes. The 112-LQFP exposes 8-bit/16-bit ports sufficient for direct FET drive without external muxing, and the AEC-Q100 -40C/+125C rating covers underhood and cabin thermal swings. Pair the part with an NXP TJA1044 CAN transceiver per the datasheet reference design. Compared with smaller Flash S12 parts, the 384 KB headroom lets the same firmware image carry diagnostics and OTA-ready hooks for the next vehicle program.
Được đề xuất
HVAC Control Module
HVAC modules need simultaneous sensor acquisition and blower/PWM control, which the S912XEQ384F1MAL's 12-bit ADC (3 us conversion) and ECT (Enhanced Capture Timer) provide. The XGATE co-processor manages PWM updates without jitter while the S12XE core runs the control law and CAN diagnostics. AEC-Q100 qualification covers the cabin-to-underhood thermal gradient when the HVAC unit is mounted near the firewall. The 112-LQFP gives 8 analog channels plus enough timer I/O for brushless-motor PWM, eliminating an external motor-driver-MCU pair.
Được đề xuất
Automotive Instrument Cluster
Instrument clusters need fast CAN message handling and stepper-motor gauge drive; the S912XEQ384F1MAL's 50 MHz core plus XGATE pair holds CAN latency in single-digit microseconds and frees the CPU for stepper commutation. The 24 KB SRAM is large enough to buffer cluster animations before pushing to an external display. Using the S12XE over a Cortex-M0 alternative lets engineers reuse existing S12 code bases and BDM debug, accelerating development per the NXP application notes for S12XE clusters.
Được đề xuất
CAN Gateway / Central Network Node
A CAN gateway forwards frames between body, chassis, and powertrain buses, which demands multiple msCAN modules running concurrently. The S912XEQ384F1MAL integrates up to five msCAN controllers and provides the SRAM and Flash for routing tables and diagnostic firmware. The MPU allows supervisor/user segmentation so the gateway can isolate diagnostic tasks. Estimating bus load at 80% peak, the 50 MHz core leaves headroom for OBD-II passthrough and gateway filters.
Được đề xuất
Industrial PLC Sub-System
When an industrial machine needs an automotive-grade MCU for harsh environments, the S912XEQ384F1MAL's -40C/+125C rating and CANbus connectivity (CANopen-compatible) make it a strong fit. The 384 KB Flash holds ladder-logic and fieldbus libraries, while the 24 KB SRAM buffers I/O scans. Engineers reuse CodeWarrior or S12 toolchains across plants, lowering long-term support cost versus a proprietary 32-bit platform. The 112-LQFP's 20x20 mm body is large enough for hand rework during prototype bring-up.
Được đề xuất
Automotive Lighting Controller
LED matrix and adaptive headlight controllers need PWM channels running in lockstep with CAN diagnostics, a job for the S912XEQ384F1MAL's ECT and PIT timers plus msCAN modules. With XGATE offloading PWM duty-cycle updates, the S12XE core runs thermal-management firmware without jitter. The 24 KB SRAM holds frame buffers for matrix control tables. The 112-LQFP's many timer I/O pins reduce external PWM-driver ICs, saving BOM cost versus smaller Flash S12 alternatives.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho S912XEQ384F1MAL — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MC9S12XEQ384CAL | S912XEQ384F1VAL | S912XEG384J2CAL | S912XET512BMAGR | MC9S12XEQ384MAG |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 112-LQFP (20x20) | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same | 112-LQFP (20x20) - same |
| Core | HCS12X (S12XE) | HCS12X (S12XE) | HCS12X (S12XE) | HCS12X (S12XEG) | HCS12X (S12XET) | HCS12X (S12XE) |
| Bus Speed | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz | 50 MHz |
| Flash Memory | 384 KB | 384 KB | 384 KB | 384 KB | 512 KB (+33%) | 384 KB |
| RAM Size | 24 KB | 24 KB | 24 KB | 24 KB | 32 KB (+33%) | 24 KB |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +105C | -40C to +125C | -40C to +125C | -40C to +125C |
| Automotive Grade | Yes (AEC-Q100 -40C/+125C) | Yes (AEC-Q100 -40C/+125C) | Industrial (-40C/+105C) | Yes (AEC-Q100) | Yes (AEC-Q100) | Yes (AEC-Q100) |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| CONNECTIVITY (CAN/SCI/SPI/I2C) | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Same-family MC9S12XEQ384CAL is a lower-cost drop-in alternative (vsMC9S12XEQ384CAL)
- Same-family S912XET512BMAGR provides 33% more Flash for OTA (vsS912XET512BMAGR)
- Industrial-grade S912XEQ384F1VAL trades temp range for cost (vsS912XEQ384F1VAL)
Ghi chú thiết kế
The S912XEQ384F1MAL operates from a single 5 V (or 3.3 V regulated) supply; the on-chip voltage regulator supplies the core and PLL. Place a 100 nF X7R decoupling capacitor on each VDD/VSS pair as close as physically possible to the LQFP leads (within 3 mm) per the NXP S12XE reference design. Add a bulk 10 uF X5R tantalum or ceramic cap near the regulator input. Power-on ramp must reach steady state within 50 ms to avoid spurious RESET events; add an RC delay on RESET if the upstream regulator is slow.
Do not leave the BKGD (Background Debug Mode) pin floating when BDM is not in use - tie it through a 10 kohm pull-up to VDD to prevent accidental entry into debug mode. The XGATE co-processor must be explicitly configured before its interrupt sources are enabled; failing to clear the XGIF flag first can cause the main CPU to stall on a spurious vector. The TEST pin must be tied directly to VSS for normal application operation, otherwise the part enters factory test mode. Always verify your CAN bus termination (120 ohm at each end) before bringing up msCAN - a missing terminator is the most common cause of 'CAN works at 125 kbps but not at 500 kbps' symptoms.
At 50 MHz internal bus, the S912XEQ384F1MAL dissipates roughly 100-150 mW in active mode (estimated, depends on peripheral enable state). The 112-LQFP has a theta_JA of approximately 35-45 C/W on a 4-layer JEDEC EIA/JESD51 test board, allowing sustained operation without a dedicated heatsink. For industrial cabinet environments above +85C ambient, route a thermal copper pour beneath the package and stitch vias to inner ground planes to keep junction temperature below +150C margin.
Route the EXTAL/XTAL traces as a short differential pair (matched within 2 mm) and guard them with a grounded copper pour. Keep ADC analog traces (PAD[15:0]) away from PWM/IC outputs (PP[7:0]) to avoid 10-15 LSB noise injection; a 100 ohm series resistor plus 1 nF to ground at each analog pin forms an effective anti-alias filter. The JTAG and BDM pins should be pulled to a defined state even on production boards - either add a 10-pin Cortex-style debug header or 4.7 kohm pull-ups on TMS, TDI, TRST for production.
Thông tin tuân thủ
AEC-Q100 qualified for automotive -40C/+125C operation per the NXP product page and Mouser listing. RoHS and REACH compliant. Lead-free and halogen-free per NXP automotive-grade part marking on package top.
