S912XET256BCAG - 16-Bit 50MHz 256KB MCU | NXP
料号： S912XET256BCAG ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
S912XET256BCAG 概述
A microcontroller is a programmable semiconductor that integrates a CPU core, memory, input/output interfaces, and peripherals on one device. The HCS12X family belongs to the embedded-controller hierarchy: microcontroller -> 16-bit MCU -> automotive embedded processing. Its combination of deterministic control peripherals, CAN connectivity, and flexible memory organization makes it suitable for vehicle body, communications, industrial, and embedded networking designs.
The S912XET256BCAG provides 256 KB of Flash memory, a 12-bit ADC with a reported 3 microsecond conversion time, CAN, EBI/EMI, I2C, IrDA, SCI, and SPI interfaces. It also includes low-voltage detection, power-on reset, PWM, and a watchdog timer. The XGATE co-processor assists with virtual-peripheral workloads and overall control performance, while supervisor and user modes plus the memory protection unit support system integrity.
The automotive-qualified variant is intended for embedded automotive environments where a 16-bit architecture, broad peripheral set, and 50 MHz bus speed are useful. Its 144-pin LQFP package exposes substantially more I/O than smaller mixed-signal packages, allowing more external sensors, actuators, communication nodes, and interface signals to be integrated. The 1.72 V to 5.5 V supply range also supports systems where the MCU operates alongside lower-voltage logic.
Typical applications include automotive body-control modules, CAN-connected vehicle systems, industrial controllers, data acquisition units, communications equipment, and embedded motor-control platforms. Design decisions should verify the exact pin multiplexing, electrical timing, oscillator configuration, memory map, and peripheral availability against the manufacturer datasheet before PCB release.
The S912XET256BCAG is best selected when software architecture, legacy HCS12X compatibility, Flash capacity, and high pin count matter more than the power efficiency of a newer 32-bit MCU. Its combination of 50 MHz processing, 256 KB Flash, and 119 I/O provides a broad integration surface for embedded control designs.
This page consolidates verified manufacturer and distributor information, technical comparison points, application guidance, and replacement-screening notes. It is intended to support engineering selection while avoiding unsupported assumptions about unavailable electrical details or unverified pin-level substitutions.
直接替换替代料： S912XET256BCAG ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： S912XET256BCAG （相同外形与封装尺寸） ——差异在于 Mounting Type, ADC, Package Type, Supply Voltage Range.
快速对比工具——选择替代料号进行并排对比：
S912XDT256F1VAA
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$13.6 / 个
查看数据手册 →S912XET256BMAL
✅ 直接替换📋 参考替代料（不在目录中）
S912XET256J1CALR
✅ 直接替换✓ 有现货
$2.6476 / 个
查看数据手册 →S912XET256BCAG 最大额定值与电气特性
| Product Type | 16-bit HCS12X microcontroller |
| Core | HCS12X |
| Maximum Clock Speed | 50 MHz |
| Program Memory | 256 KB Flash |
| Program Memory Organization | 256K x 8 |
| Number of I/O | 119 |
| Supply Voltage Range | 1.72 V to 5.5 V |
| 工作温度范围 | -40 °C to +85 °C |
| ADC | 12-bit resolution |
| ADC Conversion Time | 3 μs |
| Connectivity | CANbus, EBI/EMI, I²C, IrDA, SCI, SPI |
| 封装 | 144-LQFP, 20 x 20 mm |
| 安装类型 | Surface mount |
| Automotive Qualification | Automotive qualified |
| Coprocessor | XGATE |
| Programmable EEPROM Emulation | Hardware-emulated EEPROM |
| Security and Integrity Features | Memory protection unit and supervisor/user modes |
| Low Voltage Detection | LVD |
| Power-On Reset | POR |
| Pulse Width Modulation | PWM |
| Watchdog Timer | WDT |
S912XET256BCAG 144-lqfp, 20 x 20 mm 引脚配置指南
S912XET256BCAG（144-lqfp, 20 x 20 mm 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： S912XET256BCAG.
请参阅 数据手册 以查看完整引脚配置。
典型应用
S912XET256BCAG 适用于 6 应用s: Automotive Body Control Module, CAN-Connected Vehicle Network Node, Industrial Data Acquisition Controller, Embedded Communications Equipment, Motor and Actuator Control Platform, Embedded Security and System Integrity Node.
Automotive Body Control Module
The S912XET256BCAG fits an automotive body-control module that coordinates switches, lamps, sensors, actuators, and diagnostic communication. Its 16-bit HCS12X core operates up to 50 MHz, while 256 KB Flash provides room for application code and calibration data. CAN connectivity supports vehicle-network communication, and the 119 I/O in the 144-LQFP package provide access to many discrete signals. The verified Mouser listing identifies the part as automotive qualified for operation from -40 °C to +85 °C. Designers should still confirm exact qualification, pin multiplexing, and electrical margins in the current NXP documentation.
推荐
CAN-Connected Vehicle Network Node
Use the S912XET256BCAG when a vehicle network node needs substantial Flash space and a broad peripheral set in one controller. The integrated CANbus interface can support communication with other vehicle modules, while SCI, SPI, I²C, IrDA, and EBI/EMI provide additional channels for sensors and external logic. At 50 MHz and 256 KB Flash, the device can separate time-critical control functions from communication handling, including use of the XGATE co-processor for selected background workloads. The final network design must verify transceiver requirements, termination, bus timing, and all package-level signal assignments.
推荐
Industrial Data Acquisition Controller
The S912XET256BCAG is suitable for industrial acquisition and supervisory control units that need both analog measurement and multiple digital interfaces. Its 12-bit ADC provides a stated conversion time of 3 microseconds, while the 119 I/O can connect sensors, status signals, actuators, and external interface devices. The 256 KB Flash capacity supports embedded application logic, diagnostics, and configuration data. The 1.72 V to 5.5 V operating range can simplify integration with mixed-voltage logic, although the designer must account for analog accuracy, calibration, grounding, and protection requirements. PWM, watchdog, and low-voltage detection features support robust supervisory behavior.
推荐
Embedded Communications Equipment
For communications equipment, the S912XET256BCAG offers a 50 MHz 16-bit control platform with 256 KB Flash and multiple serial interfaces. SCI, SPI, I²C, IrDA, and CANbus allow the controller to manage local transceivers, sensors, memory, and service interfaces without relying on a separate communications processor. Its supervisor/user modes and memory protection unit support systems that require controlled execution environments. Designers should use the XGATE intelligently for background processing and keep interrupt latency, bus bandwidth, and peripheral timing within the constraints described by NXP.
推荐
Motor and Actuator Control Platform
The S912XET256BCAG can serve as a supervisory controller in motor and actuator systems where deterministic timing and multiple I/O are important. Its PWM peripheral, watchdog timer, 50 MHz processing capability, and 119 I/O provide resources for command inputs, position or limit signals, feedback sensors, and drive-control interfaces. The XGATE co-processor may assist with selected virtual-peripheral or background tasks while the main CPU manages control sequencing. Because the supplied data does not specify dedicated motor-control ratings or analog output limits, engineers must verify the exact pin multiplexing and timing characteristics before connecting power-stage devices.
推荐
Embedded Security and System Integrity Node
The S912XET256BCAG is suitable for supervisory nodes that need controlled memory access and multiple communication paths. The memory protection unit and supervisor/user modes provide mechanisms for separating software execution regions and protecting system integrity. CANbus, SCI, SPI, and I²C can connect the node to sensors, storage, service equipment, or neighboring controllers. Its 256 KB Flash supports embedded policy, diagnostics, and logging logic, while the watchdog and low-voltage detection help monitor abnormal conditions. Exact security capabilities, memory partitioning rules, and certification status should be confirmed from the manufacturer documentation rather than inferred from the feature list.
推荐
推荐产品汇总
工程参考数据： S912XET256BCAG ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | S912XDT256F1VAA | S912XET256BMAL | S912XET256J1CALR |
|---|---|---|---|---|
| Product Type | 16-bit HCS12X microcontroller | Related S12X microcontroller | Related S912X controller | Related S912XET256 family device |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Program Memory | 256 KB Flash | 256 KB Flash family designation | 256 KB family designation | 256 KB family designation |
| Package | 144-LQFP 20 x 20 mm | 144-LQFP 20 x 20 mm related package | 144-LQFP 20 x 20 mm related package | 144-LQFP 20 x 20 mm related package |
关键差异点
- High-pin-count embedded control integration （对比 S912XET256BMAL)
- Verified automotive positioning （对比 S912XDT256F1VAA)
- Documented connectivity set （对比 S912XET256J1CALR)
- 50 MHz control performance with XGATE support （对比 S912XDT256F1VAA)
设计说明
The verified data specifies a 1.72 V to 5.5 V operating range. Keep the MCU supply, ground reference, decoupling, and external interface levels within the manufacturer’s recommended electrical limits. Validate regulator startup, load transients, brownout behavior, and low-voltage detection behavior in the final board design rather than relying only on the headline voltage range.
The S912XET256BCAG uses a 144-LQFP 20 x 20 mm package with 119 I/O. Place the device according to the exact NXP package drawing and preserve access for programming, inspection, and rework. Because the supplied data does not include a complete pin table, verify every power, ground, clock, reset, debug, communication, and alternate-function signal before PCB release.
Route high-speed clock and communication signals with controlled return paths and keep sensitive analog inputs away from switching nodes and high-current traces. Separate CAN, SCI, SPI, I²C, and IrDA routing where practical, and follow the datasheet’s external-component and grounding recommendations. Do not infer unused or alternate-function pins from similar S12X MPNs without checking the exact package suffix.
A similar MPN pattern does not prove drop-in compatibility. Before substituting any S912XET256-family device, compare package dimensions, pin names, multiplexed functions, voltage limits, Flash organization, clock requirements, temperature grade, qualification, and peripheral availability. The supplied cross-reference results identify related parts but do not provide a complete verified pin-to-pin replacement matrix.
合规信息
The verified Mouser result identifies the device as automotive qualified. The supplied data does not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is recorded as qualified because the automotive qualification is explicitly present in the verified distributor result.