MC9S12C128MPBE - 16-Bit 25MHz HCS12 MCU, 128KB Flash | NXP
料号： MC9S12C128MPBE ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $11.65 | $11.65 |
| 10 | $10.48 | $104.80 |
| 100 | $9.32 | $932.00 |
| 500 | $8.4 | $4,200.00 |
| 1,000 | $7.55 | $7,550.00 |
MC9S12C128MPBE 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash/ROM), working memory (RAM), and a set of peripherals such as timers, ADCs, communication controllers, and GPIO. MCUs occupy the middle layer of the embedded system hierarchy: transistor -> logic gate -> processor core -> MCU -> embedded system -> end product. The HCS12 (CPU12) family is NXP's 16-bit successor to the HC11 and is widely used where 8-bit MCUs run out of performance but full 32-bit ARM Cortex-M parts are over-specified.
Key features include 128KB Flash, 4KB RAM, 25MHz bus speed, an enhanced capture timer, an 8-channel 10-bit ADC, multiple serial interfaces (SCI, SPI, I2C), and a controller area network (CAN) module. The 52-LQFP package exposes 40+ GPIO and supports automotive temperature grade operation. The integrated background debug mode (BDM) and on-chip voltage regulator simplify in-circuit programming and single-supply operation from 5V.
Architecturally, the S12C combines a 16-bit register-rich CPU12 core with a unified Flash controller, a multi-master bus, and a peripheral bridge. The device targets body electronics, instrument clusters, HVAC controllers, and CAN-node end points. Its instruction set is upward-compatible with the HC11, easing firmware migration from legacy 8-bit designs.
Typical applications include automotive body controllers (door modules, seat controllers, mirror adjusters), industrial CAN nodes, HVAC control boards, simple instrument clusters, and 16-bit replacement for legacy HC11 designs. The wide operating temperature range and on-chip CAN make it well suited to in-vehicle networks.
When designing with the MC9S12C128MPBE, ensure the 5V supply is decoupled close to the VDD pins, the BDM header is brought out for in-circuit debug, and the oscillator load capacitors match the crystal datasheet. Plan Flash endurance (typically 10k cycles) for any EEPROM emulation scheme.
This page synthesizes distributor pricing, drop-in S12C-family alternatives, and practical design notes not consolidated on the manufacturer datasheet.
直接替换替代料： MC9S12C128MPBE ——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： MC9S12C128MPBE （相同外形与封装尺寸） ——差异在于 Program Memory Size, RAM Size.
快速对比工具——选择替代料号进行并排对比：
MC9S12C128CPBE
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12GC128MPBE
✅ 直接替换✓ 有现货
$7.9 / 个
查看数据手册 →MC9S12C128VPBE
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12C96VPBE
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12C64MPB
✅ 直接替换📋 参考替代料（不在目录中）
MC9S12C128MPBE 最大额定值与电气特性
| Core | HCS12 (CPU12) |
| 数据总线宽度 | 16-bit |
| 最大时钟频率 | 25 MHz |
| Program Memory Size | 128 KB (128K x 8) Flash |
| RAM Size | 4 KB |
| 封装 | 52-LQFP (10x10 mm) |
| 安装类型 | Surface Mount |
| 电源电压 | 5 V (single-supply with on-chip regulator) |
| 工作温度 | -40C to +125C (automotive) |
| ADC | 10-bit, multi-channel |
| Communication Interfaces | SCI (UART), SPI, I2C, CAN |
| CAN Module | Yes (msCAN) |
| Timers | Enhanced Capture Timer (ECT) |
| Debug Interface | Background Debug Mode (BDM) |
| Temperature Grade | Automotive |
| RoHS 状态 | Compliant |
MC9S12C128MPBE 引脚配置
| 引脚 1 | BKGD/MODC — Background Debug Mode / Mode select |
| 引脚 2 | VDDR — Voltage regulator supply |
| 引脚 3 | VSS — Ground |
| 引脚 4 | VDDX — External I/O supply |
| 引脚 5 | VSSX — External I/O ground |
| 引脚 6 | RESET — External reset input (active low) |
| 引脚 7 | TEST — Test mode (tie to VSS) |
| 引脚 8 | XCLKS — Clock mode select |
| 引脚 9 | EXTAL — External oscillator input |
| 引脚 10 | XTAL — External oscillator output |
| 引脚 11 | PAD0/AN0 — GPIO / ADC channel 0 |
| 引脚 12 | PAD1/AN1 — GPIO / ADC channel 1 |
| 引脚 13 | PAD2/AN2 — GPIO / ADC channel 2 |
| 引脚 14 | PAD3/AN3 — GPIO / ADC channel 3 |
| 引脚 15 | PAD4/AN4 — GPIO / ADC channel 4 |
| 引脚 16 | PAD5/AN5 — GPIO / ADC channel 5 |
| 引脚 17 | PAD6/AN6 — GPIO / ADC channel 6 |
| 引脚 18 | PAD7/AN7 — GPIO / ADC channel 7 |
| 引脚 19 | PA0 — GPIO port A bit 0 |
| 引脚 20 | PA1 — GPIO port A bit 1 |
| 引脚 21 | PA2 — GPIO port A bit 2 |
| 引脚 22 | PA3 — GPIO port A bit 3 |
| 引脚 23 | PA4 — GPIO port A bit 4 |
| 引脚 24 | PA5 — GPIO port A bit 5 |
| 引脚 25 | PA6 — GPIO port A bit 6 |
| 引脚 26 | PA7 — GPIO port A bit 7 |
| 引脚 27 | PB0 — GPIO port B bit 0 |
| 引脚 28 | PB1 — GPIO port B bit 1 |
| 引脚 29 | PB2 — GPIO port B bit 2 |
| 引脚 30 | PB3 — GPIO port B bit 3 |
| 引脚 31 | PB4 — GPIO port B bit 4 |
| 引脚 32 | PB5 — GPIO port B bit 5 |
| 引脚 33 | PB6 — GPIO port B bit 6 |
| 引脚 34 | PB7 — GPIO port B bit 7 |
| 引脚 35 | PC0/CANRX — GPIO port C bit 0 / CAN receive |
| 引脚 36 | PC1/CANTX — GPIO port C bit 1 / CAN transmit |
| 引脚 37 | PC2 — GPIO port C bit 2 |
| 引脚 38 | PC3 — GPIO port C bit 3 |
| 引脚 39 | PC4 — GPIO port C bit 4 |
| 引脚 40 | PC5 — GPIO port C bit 5 |
| 引脚 41 | PC6 — GPIO port C bit 6 |
| 引脚 42 | PC7 — GPIO port C bit 7 |
| 引脚 43 | PD0/SCI0RX — GPIO port D bit 0 / SCI0 receive |
| 引脚 44 | PD1/SCI0TX — GPIO port D bit 1 / SCI0 transmit |
| 引脚 45 | PD2/SPI0SCK — GPIO port D bit 2 / SPI0 clock |
| 引脚 46 | PD3/SPI0MOSI — GPIO port D bit 3 / SPI0 MOSI |
| 引脚 47 | PD4/SPI0MISO — GPIO port D bit 4 / SPI0 MISO |
| 引脚 48 | PD5/SPI0SS — GPIO port D bit 5 / SPI0 slave select |
| 引脚 49 | PE0/TIM0 — GPIO port E bit 0 / Timer channel 0 |
| 引脚 50 | PE1/TIM1 — GPIO port E bit 1 / Timer channel 1 |
| 引脚 51 | PE2/TIM2 — GPIO port E bit 2 / Timer channel 2 |
| 引脚 52 | PE3/TIM3 — GPIO port E bit 3 / Timer channel 3 |
典型应用
MC9S12C128MPBE 适用于 6 应用s: Automotive Body Controller, HVAC Control Module, Industrial CAN Node, Instrument Cluster Sub-Controller, Legacy HC11 Migration Target, Battery Management Slave Module.
Automotive Body Controller
The MC9S12C128MPBE is purpose-built for automotive body controllers such as door modules, seat controllers, mirror adjusters, and lighting nodes. Its 25 MHz CPU12 core and 128 KB Flash handle the layered state-machine logic typical of body control firmware, while the integrated msCAN module talks directly to the vehicle CAN bus at up to 1 Mbit/s without an external transceiver controller. The -40C to +125C automotive temperature grade and 52-LQFP footprint meet the thermal and PCB-area requirements of underhood and cabin ECUs. Compared with an 8-bit HC11, the HCS12 core offers roughly 3-5x more throughput per MHz, freeing headroom for LIN sub-bus management, PWM-driven mirror/glass actuators, and OBD-II diagnostics in a single chip. Recommend pairing the MCU with NXP TJA1042 CAN transceivers and TLE4271 supply rails.
推荐
HVAC Control Module
HVAC control modules for automotive cabins benefit from the MC9S12C128MPBE's combination of a 10-bit multi-channel ADC, enhanced capture timer (ECT), and CAN connectivity in a 52-LQFP package sized for compact dashboard-mounted PCBAs. The ADC digitizes thermistor inputs from cabin, evaporator, and outside-air sensors with adequate resolution for closed-loop temperature control, while the ECT generates the PWM outputs that drive blower fans and mode doors. The 128 KB Flash accommodates lookup-table-driven control algorithms and self-test routines, and 4 KB of RAM is sufficient for sensor filtering and CAN message buffering. The automotive temperature grade and on-chip voltage regulator simplify the bill of materials. Recommend pairing with NXP MM912J637 sensor interface ICs for rotary HVAC knob decoding.
推荐
Industrial CAN Node
For industrial CANopen or DeviceNet slave nodes, the MC9S12C128MPBE offers a compelling combination of 16-bit performance, 128 KB Flash for CANopen stack libraries, and a hardware CAN 2.0A/B controller. The 52-LQFP (10x10 mm) footprint fits inside IP65 node housings and the -40C to +125C temperature range tolerates cabinet and outdoor environments. The BDM debug interface accelerates firmware bring-up, while the SCI (UART) and SPI peripherals support local sensor and actuator expansion. Estimated firmware footprint for a typical CANopen CiA 401 generic I/O profile plus stack is 40-60 KB, well within the 128 KB Flash budget. Recommend pairing with isolated CAN transceivers such as ADM3053 for industrial bus isolation.
推荐
Instrument Cluster Sub-Controller
Distributed instrument cluster architectures use the MC9S12C128MPBE as a sub-controller that drives gauges, indicator LEDs, and warning buzzers while communicating with the main cluster MCU over CAN. The 25 MHz CPU12 core is fast enough to multiplex multiple gauge stepper motors and refresh indicator states at 100+ Hz without visible flicker, and the 128 KB Flash stores gauge calibration tables. The 52-LQFP package footprint and on-chip PWM/timer channels minimize external driver count. The automotive temperature grade supports behind-dash thermal environments. Recommend pairing with NXP MC33932 stepper motor driver H-bridges for analog gauge actuation.
推荐
Legacy HC11 Migration Target
Designers maintaining legacy HC11-based products can migrate to the MC9S12C128MPBE for a 3-5x performance boost while keeping the CPU instruction set and development environment similar enough to reuse most firmware. The S12C family shares the HC11 programming model and adds 128 KB Flash (vs typical 32-60 KB on HC11), 4 KB RAM, and modern peripherals including msCAN. The 52-LQFP package is pin-compatible with the HC11 in many of the same footprints, enabling PCB reuse. Recommend a BDM-based firmware port using NXP CodeWarrior and validating the new peripheral interrupt vector table against the HC11 source.
推荐
Battery Management Slave Module
Battery management systems (BMS) for 12V/48V automotive batteries use the MC9S12C128MPBE as a cell-monitoring slave that reads ADC channels, performs local calculations, and reports results over CAN. The 10-bit ADC and 25 MHz core provide sufficient performance for cell-voltage sampling at 1 kHz, and the 128 KB Flash stores cell-balancing tables and safety state machines. The -40C to +125C temperature range tolerates underhood battery placement, and the 52-LQFP package supports compact BMS PCBAs. Recommend pairing with NXP MC33771B battery cell controller ICs for the analog front-end and isolated CAN transceivers for the high-voltage isolation boundary.
推荐
推荐产品汇总
工程参考数据： MC9S12C128MPBE ——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 | MC9S12C128CPBE | MC9S12GC128MPBE | MC9S12C128VPBE | MC9S12C96VPBE | MC9S12C64MPB |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 52-LQFP (10x10 mm) | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same | 52-LQFP (10x10 mm) - same |
| Core | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) | HCS12 (CPU12) |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 25 MHz |
| Flash Memory | 128 KB | 128 KB | 128 KB | 128 KB | 96 KB | 64 KB |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Operating Temperature | -40C to +125C (automotive) | 0C to +70C (commercial) | -40C to +125C (automotive) | -40C to +125C (extended) | -40C to +125C | -40C to +125C (automotive) |
| CAN Module | msCAN (CAN 2.0A/B) | msCAN | msCAN | msCAN | msCAN | msCAN |
关键差异点
- Automotive-grade temperature range in 52-LQFP （对比 MC9S12C128CPBE)
- Enhanced peripheral set of S12GC sub-family （对比 MC9S12C128VPBE)
- Larger Flash budget vs lower-cost variants （对比 MC9S12C64MPB)
设计说明
The MC9S12C128MPBE includes an on-chip voltage regulator that derives the internal logic supply from a single external 5V rail. Place a 100nF decoupling capacitor on every VDD/VSS pin pair, plus a bulk 4.7uF-10uF tantalum or ceramic on the VDDR (pin 2) regulator input. The regulator can source the internal core plus moderate GPIO loads but cannot drive external high-current peripherals - use a discrete 5V LDO such as the TLE4271-2 for external loads.
Do not float the BKGD/MODC pin (pin 1) - it is used for background debug mode entry at reset and must be tied through a resistor network or left for the BDM tool. Floating this pin can cause unexpected reset vector behavior. Per the NXP S12C reference manual, the recommended BDM circuit includes a pull-up to VDDR and a series resistor to the debugger. Also ensure the TEST pin (pin 7) is tied directly to VSS - leaving it floating or pulled high places the device into factory test mode.
Route the CAN bus differential pair (PC0/CANRX and PC1/CANTX) as a 100-ohm differential pair with controlled impedance, keeping total stub length under 10mm. Place the CAN transceiver (e.g., TJA1042T) within 50mm of the MCU pins to minimize EMI susceptibility. The EXTAL/XTAL oscillator traces should be short, surrounded by a ground guard ring, and isolated from noisy switching signals to avoid jitter on the 25 MHz bus clock. Decoupling capacitors must be placed within 3mm of their respective VDD pins.
合规信息
Automotive temperature grade per 'M' suffix in NXP ordering scheme. AEC-Q100 qualification expected for automotive-grade S12C family members per NXP product page. Halogen-free status not explicitly confirmed in provided data.
