S912XEQ512F1MAA - 16-bit 50MHz 512KB Flash MCU | NXP | Automotive
部品番号: S912XEQ512F1MAA ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $11.92 | $11.92 |
| 10 | $11.32 | $113.20 |
| 100 | $10.49 | $1,049.00 |
| 500 | $9.85 | $4,925.00 |
| 1,000 | $9.2 | $9,200.00 |
S912XEQ512F1MAA 概要
A microcontroller (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals such as timers, communication interfaces, and analog-to-digital converters. Within the semiconductor hierarchy, the S912XEQ512F1MAA belongs to the 16-bit microcontroller class, the HCS12X (S12X) family, and the broader category of embedded processors used in automotive and industrial control systems.
Key differentiating features include the XGATE co-processor, a separate RISC-style peripheral processor that offloads interrupt handling and I/O tasks from the main S12X CPU, effectively boosting system throughput without raising the core clock. The device also provides flexible, programmable hardware-emulated EEPROM, allowing data storage routines to be relocated and resized in Flash. A memory protection unit (MPU) with supervisor and user modes supports system integrity for safety-relevant designs.
The S12X architecture keeps the classic HCS12 peripheral set - CAN, SCI, SPI, periodic interrupt timers, and pulse-width modulation modules - while raising the bus speed to 50 MHz. The 512KB Flash density with 32KB RAM gives headroom for complex control laws, diagnostics stacks, and OTA-style bootloaders in a single-chip solution. According to NXP product information, the part is automotive qualified, which aligns it with AEC-oriented design flows.
Typical applications include body control modules, gateway nodes, HVAC and climate control, electric power steering assist logic, instrument clusters, and industrial control units where CAN networking and robust flash storage are required. The 80-QFP 14x14 mm package suits cost-sensitive, space-constrained PCBs with standard surface-mount assembly.
When designing with this MCU, budget the single 5V supply and use the internal voltage regulator outputs as directed in the NXP reference manual; verify XGATE RAM partitioning early, since the co-processor and CPU share the 32KB RAM pool.
This page synthesizes distributor pricing, drop-in alternatives within the S12X family, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: S912XEQ512F1MAA — 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: S912XEQ512F1MAA （同一形状・フットプリント） — 相違点: Operating Temperature, Package, ADC Resolution, Co-processor, Core.
クイック比較ツール — 並列比較する代替部品を選択:
MC9S12XEP768CAG
✅ ドロップイン✓ 在庫あり
$19.85 / 個
データシートを見る →MC9S12XDT512MAA
✅ 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✓ 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 →S912XEQ384F1MAA
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
S912XEG384J2MAA
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
S912XEQ512F1MAA 最大定格＆電気的特性
| Core | S12X (HCS12X) 16-bit |
| Core Frequency | 50 MHz |
| Flash Memory | 512 KB (512K x 8) |
| RAM | 32 KB |
| データバス幅 | 16 bit |
| Co-processor | XGATE |
| ADC Resolution | 12 bit |
| 動作温度 | -40C to +125C |
| パッケージ | 80-QFP (14x14 mm) |
| 実装タイプ | Surface Mount |
| EEPROM | Hardware-emulated EEPROM (programmable, in Flash) |
| Memory Protection | MPU with supervisor/user modes |
| Qualification | Automotive Qualified |
S912XEQ512F1MAA 80-qfp (14x14 mm) ピン配置ガイド
S912XEQ512F1MAA (80-qfp (14x14 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: S912XEQ512F1MAA.
詳細は データシート をご参照ください。
主な用途
S912XEQ512F1MAA の用途: 6 件s: Body Control Module, CAN Gateway Node, HVAC and Climate Control, Instrument Cluster, Industrial Control and Automation, Seat, Door, and Steering Column Modules.
Body Control Module
The S912XEQ512F1MAA fits body control modules (BCM) because its 512KB Flash holds lighting logic, wiper/rain algorithms, and full diagnostics stacks, while the XGATE co-processor services the many low-latency I/O interrupts typical of a BCM without stealing CPU cycles. Its hardware-emulated EEPROM stores fault codes, calibration, and configuration data across power cycles with no external EEPROM IC, saving BOM cost. In a typical topology the MCU drives high-side switches and LIN/CAN transceivers, reads switches via the 12-bit ADC, and uses the MPU's supervisor/user modes to partition diagnostic software from control code, improving system integrity in an automotive-qualified, -40C to +125C part.
おすすめ
CAN Gateway Node
CAN gateways demand high interrupt throughput, and the S912XEQ512F1MAA addresses this with the XGATE co-processor, which can buffer and route CAN frames independently of the 50 MHz S12X CPU, cutting worst-case latency in multi-bus routing tables. The 512KB Flash accommodates routing matrices, network management (OSEK/AUTOSAR-style stacks), and UDS diagnostics, while 32KB RAM holds message queues. The automotive qualification and -40C to +125C range suit under-dash and engine-bay-adjacent installations. Hardware-emulated EEPROM retains network configuration and security keys. Designers should verify XGATE RAM partitioning early, since both processors share the 32KB pool and queue depth depends on it.
おすすめ
HVAC and Climate Control
Climate control units combine stepper-motor flaps, blower PWM control, and temperature sensing - all native strengths of the S912XEQ512F1MAA. Its PWM timers drive blower and actuator stages, the 12-bit ADC digitizes NTC sensor networks, and the 50 MHz core executes control loops with margin to spare thanks to XGATE offloading of timing-critical ISR work. The 512KB Flash stores look-up tables, self-learning temperature models, and diagnostics, and the emulated EEPROM preserves learned offsets across key-off cycles. Automotive qualification and the -40C to +125C rating match cabin electronic environments, and the 80-QFP 14x14 mm package suits compact HVAC controller PCBs.
おすすめ
Instrument Cluster
Instrument clusters need deterministic timing for gauges, warning lamps, and CAN reception of vehicle signals. The S912XEQ512F1MAA's periodic interrupt timers and XGATE co-processor handle stepper-motor gauge sequences and CAN signal extraction in parallel with the main control loop, ensuring pointer smoothness even under bus load. Its 512KB Flash stores telltales, chime logic, localized text, and odometer storage in emulated EEPROM, which is safety-relevant for tamper-resistant mileage data. The MPU with supervisor/user modes partitions the odometer firmware from user applications, and the -40C to +125C automotive-qualified rating covers dashboard and windshield-adjacent thermal environments.
おすすめ
Industrial Control and Automation
In factory and building automation nodes, the S912XEQ512F1MAA serves as a single-chip controller whose S12X peripheral heritage - SPI, SCI, CAN, PWM, and 12-bit ADC - maps directly onto sensor acquisition and actuator control. The XGATE co-processor maintains fast deterministic I/O servicing while the 50 MHz CPU runs protocol stacks and control algorithms. The 512KB Flash supports field-updatable firmware and generous diagnostics logging, with hardware-emulated EEPROM replacing external non-volatile memory. The industrial-relevant -40C to +125C range and 80-QFP surface-mount package simplify integration into DIN-rail and embedded controller boards requiring robust 16-bit control.
おすすめ
Seat, Door, and Steering Column Modules
Distributed automotive modules such as power seats, door units, and steering column controllers benefit from the S912XEQ512F1MAA's balance of memory and I/O processing. XGATE offloads motor-position Hall/encoder interrupts and LIN/CAN message handling, keeping stall-detection loops responsive on the 50 MHz CPU. The 512KB Flash holds per-variant configuration sets, memory-position profiles, and diagnostic routines, while emulated EEPROM stores seat positions and calibration without an external memory chip. The MPU's user/supervisor modes help isolate safety-relevant anti-pinch logic, and the automotive-qualified -40C to +125C operating range plus 80-QFP 14x14 mm footprint fit compact, cost-driven module PCBs.
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: S912XEQ512F1MAA — 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 | MC9S12XEP768CAG | MC9S12XDT512MAA | MC9S12XEQ384CAG | S912XEQ384F1MAA |
|---|---|---|---|---|---|
| Package | 80-QFP (14x14 mm) | 80-QFP - same | 80-QFP - same | 80-QFP - same | 80-QFP - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Flash Memory | 512 KB | 768 KB | 512 KB | 384 KB | 384 KB |
| Core / Frequency | S12X 16-bit, 50 MHz | S12X 16-bit, 50 MHz | S12X 16-bit, 50 MHz | S12X 16-bit, 50 MHz | S12X 16-bit, 50 MHz |
| XGATE Co-processor | Yes | Yes | No | Yes | Yes |
| Operating Temperature | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +125C |
| Automotive Qualification | Yes | Yes | Yes | Yes | Yes |
| Key Advantage | 512KB Flash + XGATE balance | 50% more Flash headroom | Lower cost, no XGATE | Lower cost, XGATE retained | Same-generation 384KB option |
主な差別化要因
- XGATE co-processor for interrupt offloading （vs MC9S12XDT512MAA)
- 50% more Flash than 384KB variants （vs MC9S12XEQ384CAG)
- Balanced density choice versus 768KB upgrade （vs MC9S12XEP768CAG)
設計ノート
The S912XEQ512F1MAA operates from a single 5V automotive supply with internal regulator-derived core rails per the NXP family reference manual. In automotive modules, pair the MCU with a system basis chip (for example MC33907-class SBC) providing reset supervision, CAN wake, and under-voltage handling. Estimated: check total module quiescent current against SBC limits by summing MCU I/O source currents plus transceiver loads before finalizing the supply budget.
The 80-QFP 14x14 mm footprint uses 0.5 mm-pitch gull-wing leads. Fan out with 0.2 mm traces/vias under the body or route out on all four sides; provide solid ground pour on layer 2 tied to the VSS pins with multiple vias. Place 100 nF ceramic decoupling capacitors at each VDD/VSS pair within 2 mm of the pin, plus bulk 4.7-10 uF near the supply entry. Follow NXP S12X hardware design guide layout recommendations for the oscillator and regulator output capacitors.
The CPU and XGATE co-processor share the 32KB RAM - underestimating XGATE stack and descriptor space causes late-stage link failures. Define the memory partition map at project start. Also remember that EEPROM emulation consumes Flash blocks from the 512KB array: reserve the partition in the linker file before code grows into it. Finally, when migrating between S12X family variants (EQ/EP/DT), re-verify peripheral clock configuration and pin multiplexing against the specific device reference manual.
コンプライアンス情報
Verified data states the device is Automotive Qualified and rated -40C to +125C. Specific RoHS/REACH/lead-free declarations were not present in the provided data and must be confirmed on the NXP product page.