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NXP Semiconductors MC9S12C32MPBE25
- Part No.:
- MC9S12C32MPBE25
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 52-LQFP
- Datasheet:
-
MC9S12C32MPBE25.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 52TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,065
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Product details
Overview
MC9S12C32MPBE25 from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 32 KB on-chip Flash, 2 KB RAM, and a 25 MHz maximum bus frequency. It integrates an 8-channel 10-bit ADC, CAN 2.0A/B controller, PWM module, and background debug interface. Designed for automotive body electronics and industrial control systems requiring deterministic real-time response and robust communication.
For engineers reviewing the MC9S12C32MPBE25 datasheet, MC9S12C32MPBE25 pinout, MC9S12C32MPBE25 application, or MC9S12C32MPBE25 equivalent, key selection criteria include its 48-pin LQFP package, 5V operation, integrated MSCAN module, and BDM-based in-circuit debugging capability - all critical for cost-sensitive, safety-aware embedded designs with legacy CAN infrastructure.
Technical Context
The MC9S12C32MPBE25 implements the S12 CPU core with 16-bit data path and von Neumann architecture, supporting up to 25 MHz internal bus clock via PLL multiplication of external crystal or oscillator input. Its memory map includes 32 KB Flash (S12FTS32KV1), 2 KB RAM, and 512 B EEPROM emulation via Flash.
Peripheral integration includes the S12MSCANV2 controller with full CAN 2.0A/B compliance, ATD10B8C 10-bit 8-channel ADC with configurable sample-and-hold, and TIM16B8CV1 16-bit timer with 8 input capture/output compare channels. All modules are memory-mapped and accessible via standard HCS12 addressing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 25 MHz max bus frequency - enables deterministic interrupt latency and cycle-accurate timing for motor control loops. |
| Flash Memory | 32 KB (S12FTS32KV1) - sufficient for bootloader + application firmware in entry-level automotive ECUs. |
| RAM | 2 KB - supports real-time task stacks, CAN message buffers, and ADC data acquisition without external memory. |
| ADC | 10-bit, 8-channel ATD10B8C - provides sufficient resolution for sensor interfacing (e.g., temperature, throttle position) with hardware-triggered conversion. |
| CAN Interface | Scalable Controller Area Network (S12MSCANV2) - fully compliant with ISO 11898-1, supporting both standard and extended frames for vehicle network communication. |
| Debug Interface | Background Debug Module (BDMV4) - enables non-intrusive single-stepping, breakpoint setting, and flash programming via single-wire BKGD pin. |
| Supply Voltage | 4.5 V to 5.5 V - compatible with standard automotive 5 V power rails and tolerant of battery voltage fluctuations. |
Pinout & Package
MC9S12C32MPBE25 is housed in a 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package with exposed thermal pad. Pin assignments follow the MC9S12C family PIM9C32 port mapping, including dedicated CANH/CANL pins, analog inputs AN0–AN7, and BKGD debug interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V supply domains (VDD1/VDD2) with separate analog/digital grounds ensure noise isolation for ADC and CAN transceivers. |
| BKGD | Background debug interface | Single-wire serial interface for programming, debugging, and flash erase - requires no additional UART or JTAG hardware. |
| CANH, CANL | CAN differential bus lines | Direct connection to external CAN transceiver (e.g., MC33883); supports 1 Mbit/s baud rate with built-in protocol engine. |
| AN0–AN7 | Analog input channels | Eight multiplexed 10-bit ADC inputs with programmable gain and sample-and-hold - suitable for resistive sensor networks. |
| PORT A–E | General-purpose I/O | Configurable as digital input/output, interrupt-capable, or peripheral function (e.g., PWM output, SCI TX/RX) - supports drive strength up to 20 mA. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated MSCAN controller | Hardware-accelerated CAN message handling with 15 message buffers, automatic retransmission, and error confinement - reduces CPU load in multi-node networks. |
| On-chip voltage regulator | Dual-output 3.3 V/5 V regulator (VREG3V3V2) powers internal logic and external peripherals - eliminates need for discrete LDOs in compact designs. |
| Real-time interrupt (RTI) | Programmable periodic interrupt source with 1–128 ms intervals - enables precise scheduler tick generation without external timers. |
| Low-power STOP mode | Current draw < 10 µA with wake-up via CAN, interrupt, or reset - extends battery life in always-on vehicle modules like door controllers. |
| Flash security lock | CRGFLG register-controlled protection against unauthorized read/write - prevents firmware extraction during field service or reverse engineering. |
Applications
| Body Control Module | Industrial Motor Drive |
|---|---|
|
Use Scenario: Centralized control of lighting, windows, locks, and mirrors in passenger vehicles. IC Role / Device Role / Timing Role: Main system controller executing CAN-based command arbitration and PWM-driven actuator sequencing. Use Value: Integrated MSCAN and 8-channel PWM eliminate external CAN transceivers and gate drivers, reducing BOM count by ≥3 components. |
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers and conveyor systems. IC Role / Device Role / Timing Role: Real-time execution of FOC algorithms using ADC-sampled current feedback and synchronized PWM outputs. Use Value: 25 MHz bus clock and hardware timer capture/compare enable ≤1 µs timing resolution for commutation timing accuracy. |
| Engine Coolant Fan Controller | Commercial Vehicle Telematics Gateway |
|
Use Scenario: Temperature-regulated fan speed control based on coolant sensor input and CAN-requested duty cycles. IC Role / Device Role / Timing Role: Sensor fusion node combining analog (NTC), digital (CAN), and PWM output functions in a single chip. Use Value: On-chip 10-bit ADC with internal reference eliminates external precision voltage reference, cutting component cost by $0.18/unit. |
Use Scenario: Aggregation and translation of J1939 messages between engine ECU and fleet management telematics unit. IC Role / Device Role / Timing Role: Protocol bridge with dual CAN channel support and buffer-managed message forwarding. Use Value: Hardware CAN message filtering and FIFO buffering reduce CPU utilization to <12% at 500 kbit/s sustained traffic. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12C64MPBE25 | 64 KB Flash, same 48-pin LQFP package and peripheral set - adds 32 KB program storage headroom. | Required when bootloader + application + OTA update image exceed 32 KB footprint. | Select if future firmware expansion or secure boot partitioning is mandated. |
| S912XDP512J1MALR | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM - not pin-compatible; requires PCB redesign. | Needed for high-throughput CAN FD gateway or complex signal processing tasks beyond S12 core capability. | Choose only when migrating to next-generation architecture with higher throughput demands. |
Compared with MC9S12C64MPBE25, the MC9S12C32MPBE25 trades Flash capacity for lower unit cost and reduced qualification overhead in volume production; versus S912XDP512J1MALR, it offers proven automotive qualification (AEC-Q100 Grade 2) and direct toolchain compatibility without migration effort.
Availability
MC9S12C32MPBE25 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor drives, and commercial vehicle telematics requiring stable component supply across long product lifecycles.
Supply support for MC9S12C32MPBE25 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 develops high-reliability microcontrollers for automotive, industrial, and IoT applications, with deep expertise in functional safety and ASIL-compliant design.
The MC9S12C32MPBE25 belongs to the legacy HCS12 family, engineered specifically for cost-optimized, CAN-based automotive control units where deterministic timing, flash endurance, and long-term supply stability are prioritized over raw performance.
FAQ
What is the maximum operating frequency of the MC9S12C32MPBE25?
The MC9S12C32MPBE25 supports a maximum bus frequency of 25 MHz, achieved via internal PLL multiplication of an external crystal or oscillator input. This frequency governs instruction execution speed, peripheral timing, and CAN bit rate generation - all calibrated to meet ISO 11898-1 timing requirements at 1 Mbit/s.
Does the MC9S12C32MPBE25 support CAN FD?
No, the MC9S12C32MPBE25 implements the S12MSCANV2 module, which supports only classical CAN 2.0A/B (ISO 11898-1) at up to 1 Mbit/s. It does not support CAN FD features such as flexible data-rate, larger payloads, or CRC enhancements. For CAN FD, consider newer S32K or MagniV families.
How is flash programming performed on the MC9S12C32MPBE25?
Flash programming on the MC9S12C32MPBE25 is performed via the Background Debug Module (BDMV4) using the BKGD pin and standard Freescale BDM protocol. No external programmer is required - a BDM interface cable and compatible software (e.g., CodeWarrior or S12Z Flash Tool) suffice for in-system programming and debugging.
What is the ADC resolution and channel count of the MC9S12C32MPBE25?
The MC9S12C32MPBE25 integrates the ATD10B8C analog-to-digital converter with 10-bit resolution and 8 input channels (AN0–AN7). Conversion time is programmable from 7 to 63 bus cycles per sample, enabling trade-offs between speed and accuracy for sensor interfaces like thermistors or potentiometers.
Is the MC9S12C32MPBE25 qualified for automotive use?
Yes, the MC9S12C32MPBE25 is AEC-Q100 qualified (Grade 2: −40 °C to +105 °C ambient), with validated reliability for under-hood and cabin-mounted automotive applications. Its design includes ESD protection (>2 kV HBM), watchdog timers, and clock monitoring - meeting ISO 26262 ASIL-B readiness requirements.
MC9S12C32MPBE25 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12C32MPBE25 FAQ
1.How can I place an order for MC9S12C32MPBE25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C32MPBE25 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 MC9S12C32MPBE25 reliable?
The price and inventory of MC9S12C32MPBE25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C32MPBE25 is usually 5 days.
3.What payment methods are accepted for MC9S12C32MPBE25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C32MPBE25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12C32MPBE25?
MC9S12C32MPBE25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C32MPBE25 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 MC9S12C32MPBE25?
For technical support, including MC9S12C32MPBE25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C32MPBE25 requirements.
6.How does Aetrix verify that MC9S12C32MPBE25 is sourced from the original manufacturer or authorized distributors?
All MC9S12C32MPBE25 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 MC9S12C32MPBE25 meets industry standards.
7.What is the process for return or replacement of MC9S12C32MPBE25?
All MC9S12C32MPBE25 units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C32MPBE25, 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 MC9S12C32MPBE25 part is unused and in its original packaging.
Return procedure for MC9S12C32MPBE25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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