MC9S12XEQ384CAG - 16-bit 50MHz MCU 384KB Flash | NXP
料号： MC9S12XEQ384CAG ✓ 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 |
MC9S12XEQ384CAG 概述
A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, memory, and programmable peripherals into one device, forming the lowest tier of the embedded processing hierarchy that spans MCUs, microprocessors, and application processors. The HCS12X family from NXP (formerly Freescale) is a CISC-based 16-bit architecture widely deployed in industrial and automotive embedded control.
Key features of the MC9S12XEQ384CAG include the XGATE co-processor, a separate RISC core that offloads interrupt handling and I/O processing to build virtual peripherals and boost overall system throughput. It also provides a flexible, programmable hardware-emulated EEPROM, a memory protection unit (MPU) with supervisor and user modes for system integrity, a 12-bit ADC with 3 us conversion time, an enhanced capture timer (ECT), a periodic interrupt timer (PIT), and a real-time interrupt (RTI).
Architecturally, the S12X CPU executes the HCS12X instruction set with additional indexed addressing modes, while the XGATE runs concurrently at the bus clock, allowing deterministic real-time response on the main core. The memory map supports paged Flash beyond the linear 16-bit address space, and the dual-core topology enables peripheral processing without stealing main-core cycles.
Typical applications include industrial automation and motor control nodes, body and comfort modules in vehicles, building control systems, and general embedded control projects requiring CAN connectivity and robust 5V operation over an industrial temperature range of -40C to +85C (TA).
Design considerations: verify the exact supply voltage domains (core and I/O rails) and ADC reference configuration against the manufacturer datasheet before board design, and budget for the hardware-emulated EEPROM endurance limits in write-intensive applications.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： MC9S12XEQ384CAG ——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： MC9S12XEQ384CAG （相同外形与封装尺寸） ——差异在于 Package, Operating Temperature, Supply Voltage, Core Architecture, ADC.
快速对比工具——选择替代料号进行并排对比：
MC9S12XEQ512CAG
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$14.4 / 个
查看数据手册 →MC9S12XEQ384CAG 最大额定值与电气特性
| Core Processor | HCS12X (16-bit CISC) |
| Core Size | 16-bit |
| Bus Speed | 50 MHz |
| Co-processor | XGATE RISC co-processor |
| Flash Memory | 384 KB (384K x 8) |
| RAM Size | 24K x 8 |
| EEPROM | Hardware-emulated EEPROM (programmable, flexible) |
| ADC Resolution | 12-bit |
| ADC Conversion Time | 3 us |
| Timers | Enhanced Capture Timer (ECT), Periodic Interrupt Timer (PIT), Real Time Interrupt (RTI) |
| Memory Protection | MPU with supervisor/user modes |
| 工作温度 | -40C to +85C (TA) |
| 安装类型 | Surface Mount |
| 封装 | 144-LQFP (20x20 mm) |
| Packaging | Tray |
| Lifecycle Stage | Active |
MC9S12XEQ384CAG 144-lqfp (20x20 mm) 引脚配置指南
MC9S12XEQ384CAG（144-lqfp (20x20 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： MC9S12XEQ384CAG.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MC9S12XEQ384CAG 适用于 6 应用s: Industrial Automation and Motor Control, Automotive Body and Comfort Modules, Building Control and HVAC Systems, CAN Networked Embedded Gateways, Embedded Control Projects and Prototyping, Test and Measurement Instrumentation.
Industrial Automation and Motor Control
The MC9S12XEQ384CAG fits industrial automation nodes where deterministic 16-bit control and robust I/O matter more than raw processing power. Its 50 MHz HCS12X core runs motor control and sequencing loops deterministically, while the XGATE co-processor services CAN and serial interrupts independently, protecting control-loop jitter. The 12-bit ADC with 3 us conversion time samples current and voltage feedback fast enough for closed-loop motor drives, and the enhanced capture timer (ECT) handles encoder and PWM timing. Placed on a 5 V industrial board operating from -40C to +85C, the MCU consolidates Flash, RAM, emulated EEPROM, and CAN in one 144-LQFP device, reducing BOM count versus a discrete MCU-plus-EEPROM-plus-CAN-controller design.
推荐
Automotive Body and Comfort Modules
Body control modules, door modules, and comfort controllers are classic HCS12X applications, and the MC9S12XEQ384CAG aligns well with their requirements. The 384 KB Flash holds full diagnostic stacks and lighting or lock control logic, while the memory protection unit with supervisor and user modes supports system-integrity partitioning demanded by vehicle platforms. The hardware-emulated EEPROM stores calibration and learned values (mirror positions, keyless settings) without an external EEPROM. The XGATE co-processor handles LIN/CAN message traffic and wake-up sources so the main core maintains real-time lamp and load control. The 12-bit, 3 us ADC reads potentiometer and current-sense inputs across the -40C to +85C automotive ambient range.
推荐
Building Control and HVAC Systems
The MC9S12XEQ384CAG suits building controllers, HVAC boards, and gateway nodes that need long-life 5 V reliability and network connectivity. Its 50 MHz bus executes PID control loops for dampers, valves, and fan drives, while the periodic interrupt timer (PIT) and real-time interrupt (RTI) provide the time bases scheduling and time-stamping tasks require. The 384 KB Flash accommodates protocol stacks such as BACnet or Modbus variants, and the emulated EEPROM keeps configuration and setpoints across power cycles. The 12-bit ADC digitizes temperature, humidity, and pressure sensor inputs with 3 us conversions, enabling multi-zone control from a single 144-LQFP MCU without external data converters.
推荐
CAN Networked Embedded Gateways
The MC9S12XEQ384CAG works well as a protocol gateway between CAN-based industrial or vehicle subnetworks. The XGATE co-processor offloads CAN frame reception, filtering, and forwarding entirely from the S12X main core, so translation logic runs without interrupt latency on the application processor, a key benefit at high bus loads. The 384 KB Flash and 24 KB RAM provide room for routing tables, diagnostic (UDS-style) handlers, and logging buffers, while the MPU with supervisor/user modes isolates the protocol stack from application code. The 50 MHz bus keeps frame-store copy operations fast, and the emulated EEPROM retains gateway configuration across power interruptions in the field.
推荐
Embedded Control Projects and Prototyping
For general embedded control projects, the MC9S12XEQ384CAG offers an approachable path: classic 5 V tolerant I/O, a well-documented 16-bit architecture, and mature CodeWarrior tooling with BDM debugging. The 384 KB Flash is large enough for substantial firmware without external memory, and hardware-emulated EEPROM removes an external storage device from prototype boards. The enhanced capture timer (ECT) supports PWM generation and input capture for hobby-scale robotics, test rigs, and instrumentation. The 12-bit, 3 us ADC covers most analog sensor needs directly, and the 144-LQFP package offers generous I/O expansion for prototypes that later migrate to smaller XEQ family pin variants in production.
推荐
Test and Measurement Instrumentation
Bench instruments, data loggers, and industrial measurement devices benefit from the MC9S12XEQ384CAG combination of deterministic timing and integrated analog capture. The enhanced capture timer (ECT) provides input capture and output compare channels for period and frequency measurement, while the 12-bit ADC with 3 us conversion time streams multi-channel measurements without an external converter. The 384 KB Flash stores acquisition firmware, calibration tables, and display logic, and the emulated EEPROM retains calibration data across servicing cycles. The XGATE co-processor manages the user-interface and communication interrupts (SCI, SPI, CAN), keeping acquisition timing on the main core jitter-free across the -40C to +85C range.
推荐
推荐产品汇总
工程参考数据： MC9S12XEQ384CAG ——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 | MC9S12XEQ512CAG |
|---|---|---|
| Package | 144-LQFP (20x20 mm) | 144-LQFP (20x20 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Core | HCS12X 16-bit + XGATE | HCS12X 16-bit + XGATE |
| Bus Speed | 50 MHz | 50 MHz |
| Flash | 384 KB | 512 KB |
| RAM | 24 KB | 24 KB |
| ADC | 12-bit, 3 us | 12-bit, 3 us |
关键差异点
- Hardware-emulated EEPROM removes external EEPROM from BOM （对比 MC9S12XDP512MAG)
- MPU with supervisor/user modes for system integrity （对比 MC9S12XDP512MAG)
- Flash headroom option without redesign （对比 MC9S12XEQ512CAG)
设计说明
The S12XE family runs from a nominal 5 V supply with internal regulation for the core; confirm the exact VDD/VDDX/VDDR rail architecture and decoupling network in the NXP S12XE reference manual before layout. Place 100 nF ceramic decoupling capacitors at each supply pin pair plus bulk capacitance near the regulator. Estimated: at 50 MHz bus with heavy XGATE loading, expect core current in the tens of milliamps range, so size the 5 V rail regulator with margin for I/O source current on all 100+ port pins.
Do not substitute the MC9S12XEQ384MAL for this part: it uses a 112-pin LQFP and is not pin-compatible despite identical core specifications. Also remember that the hardware-emulated EEPROM consumes a Flash partition - partition sizes set in software change the effective Flash available for code, so budget endurance and partition sizing early. Flash programming/erase voltages and sector granularity differ between emulated EEPROM and program Flash; consult the reference manual chapter on D-Flash/EEE rather than assuming uniform Flash behavior.
For the 144-LQFP (20x20 mm), use a standard 0.5 mm pitch LQFP land pattern per the package outline in the manufacturer datasheet. Route the crystal circuit with short traces and guard with ground, since the 50 MHz PLL-based clocking is sensitive to layout; keep the PLL loop filter components close to the device. Provide solid ground pour under the part and stitch vias around the CAN and SPI routing to limit EMI on the multiplexed I/O ring.
合规信息
The NXP product page includes an Environmental Quality section; exact RoHS/REACH documentation should be downloaded from nxp.com/part/MC9S12XEQ384CAG for the regulatory file.
