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NXP Semiconductors MC9S12C32CPBE25
- Part No.:
- MC9S12C32CPBE25
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
MC9S12C32CPBE25.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,013
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Product details
Overview
MC9S12C32CPBE25 from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 32 KB on-chip Flash, 2 KB RAM, and integrated CAN 2.0A/B controller, PWM, 10-bit 8-channel ADC, and BDM debug interface. It operates at up to 25 MHz core frequency with internal PLL, supports automotive-grade temperature range (–40°C to +85°C), and targets engine control, body electronics, and industrial motor management.
For engineers reviewing the MC9S12C32CPBE25 datasheet, MC9S12C32CPBE25 pinout, MC9S12C32CPBE25 application, or MC9S12C32CPBE25 equivalent, key selection considerations include its 52-pin LQFP package, S12 CPU core architecture, 32 KB Flash memory size, CAN bus integration, and compatibility with legacy HCS12 toolchains and BDM-based programming workflows.
Technical Context
The MC9S12C32CPBE25 implements the S12 CPU core with 16-bit data/24-bit address bus, executing instructions in single-cycle or multi-cycle modes depending on addressing mode. Its memory map includes paged Flash (32 KB), RAM (2 KB), and register space mapped to fixed addresses, with PPAGE register enabling extended addressing beyond 64 KB.
It integrates peripheral modules including TIM16B8CV1 (16-bit timer with 8 input-capture/output-compare channels), S12MSCANV2 (CAN 2.0A/B controller with 15 message buffers), ATD10B8C (10-bit, 8-channel ADC with configurable sample-and-hold), and CRGV4 (clock/reset generator with PLL, COP watchdog, and RTI).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit address bus and CISC instruction set - enables deterministic real-time control with backward compatibility to HC12 code. |
| Flash Memory | 32 KB on-chip Flash (S12FTS32KV1 module) - supports in-system programming via BDM and provides non-volatile storage for firmware and calibration data. |
| RAM Size | 2 KB on-chip RAM - sufficient for stack, variables, and intermediate buffers in embedded control loops without external memory. |
| Max Core Frequency | 25 MHz (via internal PLL) - delivers ~25 MIPS performance suitable for closed-loop motor control and sensor fusion at sub-100 µs loop times. |
| CAN Interface | Scalable Controller Area Network (S12MSCANV2) supporting CAN 2.0A/B - enables robust, fault-tolerant communication in automotive networks with programmable bit timing. |
| ADC Resolution | 10-bit ATD10B8C with 8 analog inputs - provides 1024-level precision for engine temperature, throttle position, and battery voltage monitoring. |
| Package | 52-pin LQFP (PBE suffix), 10 × 10 mm, 0.5 mm pitch - compatible with standard surface-mount assembly and automotive PCB layouts. |
| Operating Temperature | –40°C to +85°C - qualified for under-hood and cabin-mounted automotive ECUs per AEC-Q100 stress test requirements. |
Pinout & Package
MC9S12C32CPBE25 uses a 52-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad, designed for automotive reliability and thermal dissipation in constrained environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual power domains: VDD/VSS for digital logic (5 V), VDDA/VSSA for analog subsystem - ensures noise isolation for ADC accuracy. |
| RESET | Active-low reset input | Asynchronous reset pin with internal pull-up; initiates hardware reset sequence including register initialization and Flash boot vector fetch. |
| BKGD | Background Debug pin | Single-wire serial interface for BDMV4 module - enables non-intrusive debugging, flash programming, and real-time register inspection. |
| TXD/RXD | SCI asynchronous serial I/O | Full-duplex UART interface (S12SCIV2) - used for diagnostics, bootloader communication, and host ECU configuration. |
| CANH/CANL | CAN transceiver differential pair | Direct connection to external CAN PHY (e.g., MC33886 or TJA1042) - supports 1 Mbps CAN FD-ready physical layer signaling. |
| PORT A–E | General-purpose I/O ports | Multi-function pins with programmable direction, pull-up, and interrupt capability - support PWM output, GPIO sensing, and analog input multiplexing. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip BDM interface | Enables zero-footprint debugging and flash programming using standard Freescale USB-BDM hardware - eliminates need for external JTAG emulator. |
| Integrated CAN 2.0A/B controller | Reduces BOM count by removing external CAN protocol IC; supports mailbox-based message handling and automatic retransmission on error. |
| Programmable PLL clock generator | Derives 25 MHz core clock from 4–8 MHz crystal or ceramic resonator - simplifies clock tree design and improves EMI performance vs. high-frequency oscillators. |
| 10-bit 8-channel ADC with scan mode | Supports sequential conversion of multiple sensors (e.g., coolant temp, intake air temp, throttle angle) with hardware-triggered sampling - reduces CPU overhead in control loops. |
| Computer Operating Properly (COP) watchdog | Independent free-running timer requiring periodic service - prevents runaway code execution in safety-critical automotive functions like fuel injection timing. |
| PWM8B6CV1 module | 6-channel 8-bit PWM with center-aligned and edge-aligned modes - directly drives gate drivers for BLDC motor commutation or LED dimming without external timers. |
Applications
| Engine Control Unit (ECU) | Body Control Module (BCM) |
|---|---|
Use Scenario: Real-time management of fuel injection timing, spark advance, and idle speed control based on crankshaft position, oxygen sensor, and manifold pressure inputs. IC Role / Device Role / Timing Role: Primary control MCU executing closed-loop PID algorithms at 10 ms intervals with deterministic interrupt latency. Use Value: Integrated 10-bit ADC, CAN interface, and 25 MHz CPU enable precise actuator control and vehicle network reporting without external co-processors. |
Use Scenario: Centralized control of door locks, window lifts, interior lighting, and mirror adjustment in passenger vehicles. IC Role / Device Role / Timing Role: System coordinator managing distributed LIN/CAN nodes and interpreting switch inputs with debounced GPIO and PWM-driven motor drivers. Use Value: 52-pin LQFP package accommodates all required I/O; on-chip PWM and CAN reduce component count and board area versus discrete solutions. |
| Industrial Motor Drive | Off-Road Vehicle Telematics |
Use Scenario: Sensorless BLDC motor control in pumps, fans, and compressors using back-EMF sensing and six-step commutation. IC Role / Device Role / Timing Role: Real-time motor controller executing commutation logic with sub-5 µs interrupt response and synchronized PWM outputs. Use Value: TIM16B8CV1 timer with input capture and PWM8B6CV1 allow precise phase alignment and dead-time insertion without external logic. |
Use Scenario: Data aggregation and wireless transmission of GPS location, engine hours, fault codes, and payload weight in construction and agricultural equipment. IC Role / Device Role / Timing Role: Edge intelligence node interfacing with GPS module, CAN bus, and cellular modem via SCI and SPI peripherals. Use Value: Dual serial interfaces (SCI + SPIV3), 32 KB Flash for firmware updates, and -40°C to +85°C operation ensure field reliability in harsh outdoor environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12C64CPBE | 64 KB Flash, same 52-pin LQFP package and peripheral set - no change in pinout or software API. | Supports larger firmware images and more complex control algorithms (e.g., adaptive cruise control), but requires higher-cost Flash programming tools. | Select when future firmware expansion headroom or additional calibration tables are required without changing PCB layout. |
| S912XDP512J1MALR | Enhanced S12X core, 512 KB Flash, 32 KB RAM, and added XGATE coprocessor - not pin-compatible; requires new PCB and toolchain migration. | Targets next-generation ECUs needing parallel processing (e.g., simultaneous CAN messaging and signal processing), but increases BOM and validation effort. | Choose only for new designs where long-term scalability and computational headroom outweigh redesign cost and schedule impact. |
Compared with MC9S12C64CPBE, the MC9S12C32CPBE25 offers lower memory density and reduced firmware update flexibility but maintains identical peripheral functionality and footprint; compared with S912XDP512J1MALR, it avoids architectural complexity and toolchain migration while delivering proven performance for established automotive control tasks.
Availability
MC9S12C32CPBE25 is available at Aetrix Electronics and suitable for automotive engine control, body electronics, and industrial motor drive applications requiring stable component supply across extended product lifecycles.
Supply support for MC9S12C32CPBE25 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep heritage in microcontroller innovation dating to the Motorola 6800 family.
The MC9S12C32CPBE25 belongs to the HCS12 microcontroller family, engineered specifically for cost-sensitive, high-reliability automotive control applications where deterministic real-time performance, CAN integration, and long-term supply stability are critical.
FAQ
What is the maximum operating frequency of the MC9S12C32CPBE25?
The MC9S12C32CPBE25 achieves a maximum core frequency of 25 MHz using its internal Phase-Locked Loop (PLL) circuit, which multiplies an external 4–8 MHz crystal or resonator input. This frequency enables approximately 25 million instructions per second (MIPS) throughput, sufficient for real-time control tasks such as engine timing and motor commutation. The PLL lock status is monitored via the CRGFLG register, and the system automatically enters safe fail-safe mode if PLL unlock is detected.
Does the MC9S12C32CPBE25 support in-circuit debugging?
Yes, the MC9S12C32CPBE25 includes a Background Debug Module (BDMV4) accessible through the BKGD pin, enabling full in-circuit debugging, flash programming, and real-time register inspection without halting program execution. This single-wire interface works with standard Freescale/NXP USB-BDM debug probes and is supported by CodeWarrior Development Studio v5.1 and later. No external JTAG adapter is required, reducing development tool cost and complexity.
What type of CAN protocol does the MC9S12C32CPBE25 implement?
The MC9S12C32CPBE25 integrates the S12MSCANV2 module, which fully supports CAN 2.0A (standard frame, 11-bit ID) and CAN 2.0B (extended frame, 29-bit ID) protocols. It features 15 individually configurable message buffers, programmable bit timing registers, automatic retransmission on error, and bus-off recovery - meeting ISO 11898-1 requirements for automotive network communication without external CAN controller ICs.
Is the MC9S12C32CPBE25 qualified for automotive use?
Yes, the MC9S12C32CPBE25 is manufactured and tested to meet AEC-Q100 Grade 2 specifications for automotive components, with guaranteed operation from –40°C to +85°C ambient temperature. Its design includes built-in features essential for automotive reliability: Computer Operating Properly (COP) watchdog, Clock Monitor (CM), low-voltage reset detection, and ESD protection exceeding 2 kV HBM - making it suitable for engine control, transmission, and body electronics applications.
What development tools are compatible with the MC9S12C32CPBE25?
The MC9S12C32CPBE25 is supported by NXP's legacy CodeWarrior Development Studio for HCS12 (v5.1+), P&E Micro's Multilink Universal debugger, and open-source tools like GNU GCC for S12 with appropriate startup code and linker scripts. Flash programming is performed via the BKGD interface using BDM commands, and hardware debugging requires only a 6-pin BDM connector. Reference schematics and BOM templates are available in the MC9S12C Family Reference Manual (Rev 01.24).
MC9S12C32CPBE25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 52-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Not For New Designs
- Programmable:
- Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- CANbus, EBI/EMI, SCI, SPI
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 35
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.35V ~ 5.5V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12C32CPBE25 FAQ
1.How can I place an order for MC9S12C32CPBE25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C32CPBE25 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC9S12C32CPBE25 reliable?
The price and inventory of MC9S12C32CPBE25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C32CPBE25 is usually 5 days.
3.What payment methods are accepted for MC9S12C32CPBE25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C32CPBE25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12C32CPBE25?
MC9S12C32CPBE25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C32CPBE25 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC9S12C32CPBE25?
For technical support, including MC9S12C32CPBE25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C32CPBE25 requirements.
6.How does Aetrix verify that MC9S12C32CPBE25 is sourced from the original manufacturer or authorized distributors?
All MC9S12C32CPBE25 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC9S12C32CPBE25 meets industry standards.
7.What is the process for return or replacement of MC9S12C32CPBE25?
All MC9S12C32CPBE25 units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C32CPBE25, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC9S12C32CPBE25 part is unused and in its original packaging.
Return procedure for MC9S12C32CPBE25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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