S912XEQ384F1MAL - 16-bit S12X MCU 384KB Flash 50MHz | NXP
部品番号: S912XEQ384F1MAL ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $18.75 | $18.75 |
| 10 | $16.4 | $164.00 |
| 100 | $13.95 | $1,395.00 |
| 500 | $12.1 | $6,050.00 |
| 1,000 | $10.45 | $10,450.00 |
| 3,000 | $9.2 | $27,600.00 |
S912XEQ384F1MAL 概要
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.
ドロップイン代替品: S912XEQ384F1MAL — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: S912XEQ384F1MAL （同一形状・フットプリント） — 相違点: Package, Timers, Mounting Type, Operating Temperature, Supply Voltage.
クイック比較ツール — 並列比較する代替部品を選択:
MC9S12XEQ384CAL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
S912XEQ384F1VAL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
S912XEG384J2CAL
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$9.1 / 個
データシートを見る →S912XET512BMAGR
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$6.6 / 個
データシートを見る →MC9S12XEQ384MAG
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
S912XEQ384F1MAL 最大定格＆電気的特性
| 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 |
| 電源電圧 | 1.8 V / 2.8 V / 5 V |
| 動作温度 | -40C to +125C (automotive) |
| パッケージ | 112-LQFP (20x20 mm) |
| 実装タイプ | 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 |
| MSLレベル | 3 (per JEDEC J-STD-020, 168 hours) |
| RoHS ステータス | Compliant |
S912XEQ384F1MAL ピン構成
| ピン 1 | BKGD — Background Debug Mode pin |
| ピン 2 | VDDR — External voltage regulator enable |
| ピン 3 | VDD1 — Digital supply voltage 1 |
| ピン 4 | VSS1 — Digital ground 1 |
| ピン 5 | VDD2 — Digital supply voltage 2 |
| ピン 6 | VSS2 — Digital ground 2 |
| ピン 7 | RESET — External reset (active low) |
| ピン 8 | TEST — Test mode (tie to VSS for normal operation) |
| ピン 9 | XIRQ — Non-maskable interrupt input |
| ピン 10 | IRQ — Maskable interrupt input |
| ピン 11 | PAD00 — Port AD bit 0 (ADC and digital I/O) |
| ピン 12 | PAD01 — Port AD bit 1 |
| ピン 13 | PAD02 — Port AD bit 2 |
| ピン 14 | PAD03 — Port AD bit 3 |
| ピン 15 | PAD04 — Port AD bit 4 |
| ピン 16 | PAD05 — Port AD bit 5 |
| ピン 17 | PAD06 — Port AD bit 6 |
| ピン 18 | PAD07 — Port AD bit 7 |
| ピン 19 | PAD08 — Port AD bit 8 |
| ピン 20 | PAD09 — Port AD bit 9 |
| ピン 21 | PAD10 — Port AD bit 10 |
| ピン 22 | PAD11 — Port AD bit 11 |
| ピン 23 | PAD12 — Port AD bit 12 |
| ピン 24 | PAD13 — Port AD bit 13 |
| ピン 25 | PAD14 — Port AD bit 14 |
| ピン 26 | PAD15 — Port AD bit 15 |
| ピン 27 | PA0 — Port A bit 0 |
| ピン 28 | PA1 — Port A bit 1 |
| ピン 29 | PA2 — Port A bit 2 |
| ピン 30 | PA3 — Port A bit 3 |
| ピン 31 | PA4 — Port A bit 4 |
| ピン 32 | PA5 — Port A bit 5 |
| ピン 33 | PA6 — Port A bit 6 |
| ピン 34 | PA7 — Port A bit 7 |
| ピン 35 | PB0 — Port B bit 0 |
| ピン 36 | PB1 — Port B bit 1 |
| ピン 37 | PB2 — Port B bit 2 |
| ピン 38 | PB3 — Port B bit 3 |
| ピン 39 | PB4 — Port B bit 4 |
| ピン 40 | PB5 — Port B bit 5 |
| ピン 41 | PB6 — Port B bit 6 |
| ピン 42 | PB7 — Port B bit 7 |
| ピン 43 | VDD3 — Digital supply voltage 3 |
| ピン 44 | VSS3 — Digital ground 3 |
| ピン 45 | PP0 — Port P bit 0 (PWM timer) |
| ピン 46 | PP1 — Port P bit 1 (PWM timer) |
| ピン 47 | PP2 — Port P bit 2 (PWM timer) |
| ピン 48 | PP3 — Port P bit 3 (PWM timer) |
| ピン 49 | PP4 — Port P bit 4 (PWM timer) |
| ピン 50 | PP5 — Port P bit 5 (PWM timer) |
| ピン 51 | PP6 — Port P bit 6 (PWM timer) |
| ピン 52 | PP7 — Port P bit 7 (PWM timer) |
| ピン 53 | PC0 — Port C bit 0 |
| ピン 54 | PC1 — Port C bit 1 |
| ピン 55 | PC2 — Port C bit 2 |
| ピン 56 | PC3 — Port C bit 3 |
| ピン 57 | PC4 — Port C bit 4 |
| ピン 58 | PC5 — Port C bit 5 |
| ピン 59 | PC6 — Port C bit 6 |
| ピン 60 | PC7 — Port C bit 7 |
| ピン 61 | CAN0TX — msCAN0 transmit |
| ピン 62 | CAN0RX — msCAN0 receive |
| ピン 63 | CAN1TX — msCAN1 transmit |
| ピン 64 | CAN1RX — msCAN1 receive |
| ピン 65 | PJ0 — Port J bit 0 (CAN2) |
| ピン 66 | PJ1 — Port J bit 1 (CAN2) |
| ピン 67 | PJ2 — Port J bit 2 (CAN4) |
| ピン 68 | PJ3 — Port J bit 3 (CAN4) |
| ピン 69 | PJ4 — Port J bit 4 |
| ピン 70 | PJ5 — Port J bit 5 |
| ピン 71 | PJ6 — Port J bit 6 |
| ピン 72 | PJ7 — Port J bit 7 |
| ピン 73 | PS0 — Port S bit 0 (SPI0) |
| ピン 74 | PS1 — Port S bit 1 (SPI0) |
| ピン 75 | PS2 — Port S bit 2 (SPI0) |
| ピン 76 | PS3 — Port S bit 3 (SPI0) |
| ピン 77 | PS4 — Port S bit 4 (SPI1) |
| ピン 78 | PS5 — Port S bit 5 (SPI1) |
| ピン 79 | PS6 — Port S bit 6 (SPI1) |
| ピン 80 | PS7 — Port S bit 7 (SPI1) |
| ピン 81 | PK0 — Port K bit 0 (SCI0) |
| ピン 82 | PK1 — Port K bit 1 (SCI0) |
| ピン 83 | PK2 — Port K bit 2 (SCI1) |
| ピン 84 | PK3 — Port K bit 3 (SCI1) |
| ピン 85 | PK4 — Port K bit 4 (SCI2) |
| ピン 86 | PK5 — Port K bit 5 (SCI2) |
| ピン 87 | PK6 — Port K bit 6 (I2C) |
| ピン 88 | PK7 — Port K bit 7 (I2C) |
| ピン 89 | PM0 — Port M bit 0 (CAN/ECT) |
| ピン 90 | PM1 — Port M bit 1 (ECT) |
| ピン 91 | PM2 — Port M bit 2 (ECT) |
| ピン 92 | PM3 — Port M bit 3 (ECT) |
| ピン 93 | PM4 — Port M bit 4 (ECT) |
| ピン 94 | PM5 — Port M bit 5 (ECT) |
| ピン 95 | PM6 — Port M bit 6 (ECT) |
| ピン 96 | PM7 — Port M bit 7 (ECT) |
| ピン 97 | PQ0 — Port Q bit 0 (PIT/RTI) |
| ピン 98 | PQ1 — Port Q bit 1 |
| ピン 99 | PQ2 — Port Q bit 2 |
| ピン 100 | PQ3 — Port Q bit 3 |
| ピン 101 | PQ4 — Port Q bit 4 |
| ピン 102 | PQ5 — Port Q bit 5 |
| ピン 103 | PQ6 — Port Q bit 6 |
| ピン 104 | PQ7 — Port Q bit 7 |
| ピン 105 | TCLK — Timer clock input |
| ピン 106 | TDI — JTAG test data in |
| ピン 107 | TDO — JTAG test data out |
| ピン 108 | TMS — JTAG test mode select |
| ピン 109 | TRST — JTAG test reset |
| ピン 110 | TCK — JTAG test clock |
| ピン 111 | EXTAL — External clock/crystal input |
| ピン 112 | XTAL — Crystal oscillator output |
主な用途
S912XEQ384F1MAL の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: S912XEQ384F1MAL — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Same-family MC9S12XEQ384CAL is a lower-cost drop-in alternative （vs MC9S12XEQ384CAL)
- Same-family S912XET512BMAGR provides 33% more Flash for OTA （vs S912XET512BMAGR)
- Industrial-grade S912XEQ384F1VAL trades temp range for cost （vs S912XEQ384F1VAL)
設計ノート
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.
コンプライアンス情報
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.
