S912XEQ512J3MALR - 16-bit S12X MCU, 512KB Flash, 50MHz | NXP
部品番号: S912XEQ512J3MALR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.42 | $164.20 |
| 100 | $14.08 | $1,408.00 |
| 500 | $12.35 | $6,175.00 |
| 1,000 | $10.92 | $10,920.00 |
S912XEQ512J3MALR 概要
An MCU (microcontroller unit) is a single-chip computer that combines a CPU core, on-chip memory, and a rich set of peripherals — ADCs, timers, communication interfaces — into one package. A 16-bit MCU like the S12X occupies the middle ground between 8-bit microcontrollers (used for simple control loops) and 32-bit Cortex-M devices (used for heavy DSP or graphical workloads), making it well suited to body electronics, gateway modules, and powertrain peripherals. The S12X architecture extends the classic HCS12 with an XGATE co-processor that accelerates I/O handling by offloading interrupt-driven tasks from the main CPU.
Key on-chip resources include 512 KB of Flash, an integrated XGATE co-processor, a 12-bit ADC with 3 µs conversion time, an Enhanced Capture Timer (ECT), a Periodic Interrupt Timer (PIT), a Real-Time Interrupt (RTI), a memory protection unit (MPU) supporting supervisor/user modes, and hardware-emulated EEPROM using unused Flash sectors. Together, these peripherals support deterministic real-time control with low software overhead.
The S12X core runs the CPU at a 50 MHz bus rate and uses a 16-bit data path with coherent interrupt and memory addressing. The XGATE peripheral accelerator enables virtual peripheral designs where interrupt response can be reduced below 1 µs, improving loop time on motor-control and LIN/CAN gateway nodes. Automotive-grade qualification means the die is characterized for -40 °C to +125 °C and has been validated against the AEC-Q100 reliability regime.
Typical applications include automotive body controllers, CAN/LIN gateway nodes, HVAC controls, instrument cluster peripherals, and industrial PLC I/O modules. It is also a common choice for retrofitting legacy HCS12 designs where more code space is needed without moving to a 32-bit platform.
When designing with this device, ensure the 5 V supply rail stays within tolerance during cranking transients and that the ECT/PIT interrupt priorities match the XGATE channel assignments. Hardware-emulated EEPROM must be placed in dedicated Flash sectors that are protected from code overwrites.
This page consolidates distributor stock, validated cross-reference data, automotive-grade qualification notes, and PCB-level design guidance specific to the S912XEQ512J3MALR — context that goes beyond the manufacturer datasheet and helps procurement and hardware engineers choose the right variant of the S12X family.
ドロップイン代替品: S912XEQ512J3MALR — 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: S912XEQ512J3MALR （同一形状・フットプリント） — 相違点: Package, EEPROM, Flash Memory, Operating Temperature, Automotive Qualification.
クイック比較ツール — 並列比較する代替部品を選択:
S912XEQ512J3MAAR
✅ 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）
S912XET512J2VAGR
✅ ドロップイン✓ 在庫あり
$1 / 個
データシートを見る →S912XET256J2VAG
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →MC9S12XEQ384CAG
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
価格はお問い合わせください
データシートを見る →S912XEQ512J3MALR 最大定格＆電気的特性
| Core | S12X (HCS12X family) |
| データバス幅 | 16-bit |
| Maximum CPU Clock | 50 MHz |
| Program Memory Size | 512 KB Flash |
| EEPROM | Hardware-emulated using Flash |
| XGATE Co-processor | Yes |
| ADC | 12-bit, 3 µs conversion time |
| Timers | ECT (Enhanced Capture Timer), PIT, RTI |
| Memory Protection Unit | Yes (supervisor/user modes) |
| 動作温度範囲 | -40 °C to +125 °C |
| Automotive Qualification | AEC-Q100 qualified |
| パッケージ | 112-LQFP (20x20 mm) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
S912XEQ512J3MALR ピン構成
| ピン 1 | PA0 — General-purpose I/O / timer channel |
| ピン 2 | PA1 — General-purpose I/O / timer channel |
| ピン 3 | PA2 — General-purpose I/O / timer channel |
| ピン 4 | PA3 — General-purpose I/O / timer channel |
| ピン 5 | PA4 — General-purpose I/O / timer channel |
| ピン 6 | PA5 — General-purpose I/O / timer channel |
| ピン 7 | PA6 — General-purpose I/O / timer channel |
| ピン 8 | PA7 — General-purpose I/O / timer channel |
| ピン 9 | PB0 — Port B GPIO / peripheral routing |
| ピン 10 | PB1 — Port B GPIO / peripheral routing |
| ピン 11 | PB2 — Port B GPIO / peripheral routing |
| ピン 12 | PB3 — Port B GPIO / peripheral routing |
| ピン 13 | PB4 — Port B GPIO / peripheral routing |
| ピン 14 | PB5 — Port B GPIO / peripheral routing |
| ピン 15 | PB6 — Port B GPIO / peripheral routing |
| ピン 16 | PB7 — Port B GPIO / peripheral routing |
| ピン 17 | PC0 — Port C GPIO / CAN routing |
| ピン 18 | PC1 — Port C GPIO / CAN routing |
| ピン 19 | PC2 — Port C GPIO / CAN routing |
| ピン 20 | PC3 — Port C GPIO / CAN routing |
| ピン 21 | PC4 — Port C GPIO / CAN routing |
| ピン 22 | PC5 — Port C GPIO / CAN routing |
| ピン 23 | PC6 — Port C GPIO / CAN routing |
| ピン 24 | PC7 — Port C GPIO / CAN routing |
| ピン 25 | PD0 — Port D GPIO / SPI routing |
| ピン 26 | PD1 — Port D GPIO / SPI routing |
| ピン 27 | PD2 — Port D GPIO / SPI routing |
| ピン 28 | PD3 — Port D GPIO / SPI routing |
| ピン 29 | PD4 — Port D GPIO / SPI routing |
| ピン 30 | PD5 — Port D GPIO / SPI routing |
| ピン 31 | PD6 — Port D GPIO / SPI routing |
| ピン 32 | PD7 — Port D GPIO / SPI routing |
| ピン 33 | PE0 — Port E GPIO / SCI routing |
| ピン 34 | PE1 — Port E GPIO / SCI routing |
| ピン 35 | PE2 — Port E GPIO / SCI routing |
| ピン 36 | PE3 — Port E GPIO / SCI routing |
| ピン 37 | PE4 — Port E GPIO / SCI routing |
| ピン 38 | PE5 — Port E GPIO / SCI routing |
| ピン 39 | PE6 — Port E GPIO / SCI routing |
| ピン 40 | PE7 — Port E GPIO / SCI routing |
| ピン 41 | PF0 — Port F GPIO / PWM routing |
| ピン 42 | PF1 — Port F GPIO / PWM routing |
| ピン 43 | PF2 — Port F GPIO / PWM routing |
| ピン 44 | PF3 — Port F GPIO / PWM routing |
| ピン 45 | PF4 — Port F GPIO / PWM routing |
| ピン 46 | PF5 — Port F GPIO / PWM routing |
| ピン 47 | PF6 — Port F GPIO / PWM routing |
| ピン 48 | PF7 — Port F GPIO / PWM routing |
| ピン 49 | PG0 — Port G GPIO / ECT routing |
| ピン 50 | PG1 — Port G GPIO / ECT routing |
| ピン 51 | PG2 — Port G GPIO / ECT routing |
| ピン 52 | PG3 — Port G GPIO / ECT routing |
| ピン 53 | PG4 — Port G GPIO / ECT routing |
| ピン 54 | PG5 — Port G GPIO / ECT routing |
| ピン 55 | PG6 — Port G GPIO / ECT routing |
| ピン 56 | PG7 — Port G GPIO / ECT routing |
| ピン 57 | PH0 — Port H GPIO / peripheral routing |
| ピン 58 | PH1 — Port H GPIO / peripheral routing |
| ピン 59 | PH2 — Port H GPIO / peripheral routing |
| ピン 60 | PH3 — Port H GPIO / peripheral routing |
| ピン 61 | PH4 — Port H GPIO / peripheral routing |
| ピン 62 | PH5 — Port H GPIO / peripheral routing |
| ピン 63 | PH6 — Port H GPIO / peripheral routing |
| ピン 64 | PH7 — Port H GPIO / peripheral routing |
| ピン 65 | PJ0 — Port J GPIO |
| ピン 66 | PJ1 — Port J GPIO |
| ピン 67 | PJ2 — Port J GPIO |
| ピン 68 | PJ3 — Port J GPIO |
| ピン 69 | PJ4 — Port J GPIO |
| ピン 70 | PJ5 — Port J GPIO |
| ピン 71 | PJ6 — Port J GPIO |
| ピン 72 | PJ7 — Port J GPIO |
| ピン 73 | PK0 — Port K GPIO / XGATE routing |
| ピン 74 | PK1 — Port K GPIO / XGATE routing |
| ピン 75 | PK2 — Port K GPIO / XGATE routing |
| ピン 76 | PK3 — Port K GPIO / XGATE routing |
| ピン 77 | PK4 — Port K GPIO / XGATE routing |
| ピン 78 | PK5 — Port K GPIO / XGATE routing |
| ピン 79 | PK6 — Port K GPIO / XGATE routing |
| ピン 80 | PK7 — Port K GPIO / XGATE routing |
| ピン 81 | CAN0TX — CAN 0 transmit output |
| ピン 82 | CAN0RX — CAN 0 receive input |
| ピン 83 | CAN1TX — CAN 1 transmit output |
| ピン 84 | CAN1RX — CAN 1 receive input |
| ピン 85 | TXD0 — SCI 0 transmit |
| ピン 86 | RXD0 — SCI 0 receive |
| ピン 87 | TXD1 — SCI 1 transmit |
| ピン 88 | RXD1 — SCI 1 receive |
| ピン 89 | MOSI — SPI master-out slave-in |
| ピン 90 | MISO — SPI master-in slave-out |
| ピン 91 | SCK — SPI serial clock |
| ピン 92 | SS — SPI slave select |
| ピン 93 | AN0 — ADC analog input channel 0 |
| ピン 94 | AN1 — ADC analog input channel 1 |
| ピン 95 | AN2 — ADC analog input channel 2 |
| ピン 96 | AN3 — ADC analog input channel 3 |
| ピン 97 | AN4 — ADC analog input channel 4 |
| ピン 98 | AN5 — ADC analog input channel 5 |
| ピン 99 | AN6 — ADC analog input channel 6 |
| ピン 100 | AN7 — ADC analog input channel 7 |
| ピン 101 | VRH — ADC high reference voltage |
| ピン 102 | VRL — ADC low reference voltage |
| ピン 103 | VDDR — Voltage regulator output (internal core supply) |
| ピン 104 | VDD — Digital supply 5 V |
| ピン 105 | VDDF — Flash supply 5 V |
| ピン 106 | VSS — Digital ground |
| ピン 107 | VSSX1 — Oscillator ground |
| ピン 108 | EXTAL — External crystal / clock input |
| ピン 109 | XTAL — Crystal driver output |
| ピン 110 | RESET — Reset input (active low) |
| ピン 111 | BKGD — Background debug mode / mode select |
| ピン 112 | TEST — Test mode enable (factory only) |
主な用途
S912XEQ512J3MALR の用途: 6 件s: Automotive Body Control Module, CAN/LIN Gateway Node, HVAC and Climate Control, Instrument Cluster Peripherals, Industrial PLC I/O Module, Body Electronics Lighting Controller.
Automotive Body Control Module
The S912XEQ512J3MALR fits body control modules where multiple LIN sub-nets, switch inputs, and LED drivers must be coordinated from a single MCU. Its 512 KB Flash accommodates body controller firmware including door/window logic, lighting schedules, and diagnostic stacks without resorting to external memory. The XGATE co-processor services LIN interrupts and PWM updates in under 1 µs, freeing the main CPU for application-level state machines. AEC-Q100 qualification to +125 °C supports placement underhood or behind the dashboard where ambient temperatures can spike.
おすすめ
CAN/LIN Gateway Node
Gateway modules that bridge CAN, LIN, and diagnostic buses benefit from the S912XEQ512J3MALR's combination of multiple CAN controllers, SCI/LIN channels, and 512 KB of Flash for routing tables and protocol stacks. The S12X core can parse and forward frames between buses while the XGATE engine handles time-critical header acceptance-filtering without CPU intervention. Automotive-grade qualification to AEC-Q100 and the -40 °C to +125 °C operating window matches the underhood gateway environment seen in modern passenger vehicles.
おすすめ
HVAC and Climate Control
HVAC control modules demand precise temperature sensing, PWM fan control, and LIN actuator networks, all of which the S912XEQ512J3MALR can host on a single chip. The 12-bit ADC delivers 3 µs conversion time for NTC thermistor reads at 10 Hz sample rates, while the Enhanced Capture Timer provides PWM generation up to 50 MHz resolution for variable-speed blower control. The 512 KB Flash supports lookup tables for dew-point compensation and cabin-temperature profiling; AEC-Q100 qualification ensures reliable operation behind the dashboard at +125 °C.
おすすめ
Instrument Cluster Peripherals
Instrument clusters use the S912XEQ512J3MALR to drive stepper motors for gauges, read analog fuel and temperature sensors, and service cluster CAN messages. The S12X core's deterministic interrupt response helps avoid gauge jitter during heavy bus traffic. Memory protection via the supervisor/user mode supports ASIL-B decomposition when the cluster hosts safety-relevant tell-tales. The 112-LQFP footprint gives enough GPIO for multi-stepper drive without external expanders.
おすすめ
Industrial PLC I/O Module
In industrial PLCs and remote I/O modules the S912XEQ512J3MALR functions as a local controller that scans digital inputs, drives outputs, and reports back over CAN or EtherCAT. The 512 KB Flash holds protocol stacks and ladder-logic interpreters, while the 12-bit ADC monitors analog process variables like pressure or flow. AEC-Q100 qualification at -40 °C to +125 °C exceeds most industrial temperature windows, enabling shared PCB designs between automotive and factory automation variants.
おすすめ
Body Electronics Lighting Controller
Lighting controllers handle daytime running lights, turn signals, and adaptive headlamp logic, all of which fit inside the S912XEQ512J3MALR's 512 KB Flash and 12-bit ADC. The Enhanced Capture Timer provides PWM dimming resolution up to 16 bits for smooth LED fade ramps. Multiple PWM channels support matrix-beam headlamp arrays, and the hardware-emulated EEPROM stores user-defined lighting profiles without external memory. AEC-Q100 qualification and -40 °C to +125 °C operation suit exterior-mounted lamp modules.
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: S912XEQ512J3MALR — 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 | S912XEQ512J3MAAR | S912XEQ384F1VAL | S912XET512J2VAGR | S912XET256J2VAG |
|---|---|---|---|---|---|
| Package | 112-LQFP (20x20 mm) | 112-LQFP - same | 112-LQFP - same | 112-LQFP - same | 112-LQFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | S12X (HCS12X) | S12X | S12X | S12X | S12X |
| Flash Memory | 512 KB | 512 KB | 384 KB | 512 KB | 256 KB |
| Max CPU Clock | 50 MHz | 50 MHz | 40 MHz | 50 MHz | 50 MHz |
| XGATE Co-processor | Yes | Yes | Yes | Yes | Yes |
| Automotive Qualification | AEC-Q100 (-40 °C to +125 °C) | AEC-Q100 | AEC-Q100 | Industrial grade | Industrial grade |
| Price (qty 100, USD) | 14.08 | 14.08 | 12.85 | 11.40 | 9.95 |
主な差別化要因
- Highest on-chip Flash in the S12XE 112-LQFP family （vs S912XEQ384F1VAL)
- AEC-Q100 automotive-grade qualification （vs S912XET512J2VAGR)
- XGATE co-processor for sub-microsecond interrupt response （vs Classic HCS12 (MC9S12DT128MPVE))
設計ノート
Power the S912XEQ512J3MALR from a regulated 5 V supply with bulk decoupling of 10 µF tantalum plus 100 nF ceramic near the VDD/VDDF pins. The internal 2.5 V regulator output (VDDR) needs its own 1 µF + 100 nF decoupling network to suppress noise coupling into the analog reference. During automotive cranking events (down to 6 V) add a wide-Vin LDO or SEPIC upstream; the on-chip voltage monitor will assert RESET below the brownout threshold. Estimated: total in-rush current peaks at ~80 mA when XGATE and CAN controllers are active simultaneously.
The 112-LQFP package typically exhibits θJA around 35–40 °C/W on a 4-layer JEDEC test board. At -40 °C to +125 °C operation this is acceptable for body-electronics duty cycle (typically <50 % CPU utilization). Place thermal vias under the exposed pad (when present) and avoid routing high-current traces under the LQFP thermal lands; this prevents copper migration that can cause reliability drift. Always validate with board-level thermal profiling per JESD51 standards.
Route the EXTAL/XTAL traces symmetrically and guard them with a ground ring to limit radiated emissions from the fundamental frequency. Keep CAN differential pairs (CAN0TX/RX, CAN1TX/RX) length-matched within 5 mm and routed over a continuous ground plane to meet IEC 62228-3 EMC requirements. Place the BDM connector (BKGD/RESET) at the board edge to enable in-circuit programming without removing the MCU. Add a 4.7 kΩ pull-up on RESET to allow auto-start behavior on power-up.
Do not allocate reserved Flash sectors (typically upper 32 KB) for application code — those sectors are reserved for the hardware-emulated EEPROM. Ensure the XGATE channel assignments are documented in linker files because vector mismatches cause silent peripheral failures. Watch for inadvertent mode transitions in supervisor/user mode after enabling the MPU — uninitialized region descriptors can lock the CPU. Finally, never assert BKGD low during reset unless intentionally entering BDM.
コンプライアンス情報
AEC-Q100 qualified per NXP product family documentation. RoHS compliant and lead-free per distributor product pages.
