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NXP Semiconductors MC9S12C32CFAE25
- Part No.:
- MC9S12C32CFAE25
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MC9S12C32CFAE25.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,195
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Product details
Overview
MC9S12C32CFAE25 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, dual CAN 2.0A/B controllers, 8-channel PWM, and background debug module (BDM). It targets automotive body control modules, industrial sensor interfaces, and embedded motor control systems requiring deterministic real-time response.
For engineers reviewing the MC9S12C32CFAE25 datasheet, MC9S12C32CFAE25 pinout, MC9S12C32CFAE25 application, or MC9S12C32CFAE25 equivalent, this page delivers verified electrical specs, validated package mapping, confirmed peripheral register behavior, and real-world use-case constraints - all derived from the official MC9S12C Family Reference Manual Rev 01.24 and Freescale ordering documentation.
Technical Context
The MC9S12C32CFAE25 implements the S12 CPU core with 16-bit data path, 24-bit address space, and Harvard-style memory architecture. Its clock system supports multiple modes including PLL-enabled 25 MHz bus operation, self-clock mode, and low-power stop/wait states with BDM wake-up capability.
Peripheral integration follows the modular HCS12 architecture: ATD10B8C (10-bit, 8-channel ADC), S12MSCANV2 (dual CAN controllers), TIM16B8CV1 (16-bit timer with 8 input capture/output compare channels), and PIM9C32 (port integration supporting up to 52 I/O pins with configurable pull-ups and slew rate control).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CISC CPU with 24-bit addressing and 16-level hardware stack |
| Flash Memory | 32 KB on-chip Flash (S12FTS32KV1 module) with EEPROM emulation support and 100K write/erase cycles |
| RAM | 2 KB on-chip SRAM, mapped at 0x0000–0x07FF and mirrored in upper memory space |
| Max Bus Frequency | 25 MHz - enables deterministic interrupt latency ≤ 4.0 µs for highest-priority vectors |
| ADC Resolution & Channels | 10-bit ATD10B8C with 8 analog inputs, 8 µs conversion time per channel, and selectable sample-and-hold timing |
| CAN Interfaces | Dual independent S12MSCANV2 modules compliant with ISO 11898-1:2003, supporting both standard and extended frames |
| PWM Outputs | 8-channel PWM8B6CV1 with center-aligned and edge-aligned modes, programmable dead-time insertion, and fault protection input |
Pinout & Package
MC9S12C32CFAE25 is housed in a 64-pin LQFP (7 mm × 7 mm, 0.5 mm pitch) package, designated as "FA" in Freescale ordering nomenclature. Pin assignments are defined in Chapter 1.3.1 ("Device Pinouts") of the MC9S12C Family Reference Manual Rev 01.24, with full signal multiplexing controlled via MODRR and PIM registers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dual 5 V domains: VDD/VSS for digital logic; VDDA/VSSA for analog subsystem (ADC reference stability) |
| RESET | Active-low reset input | Asynchronous reset with internal pull-up; triggers power-on reset, low-voltage reset, and COP timeout recovery |
| BKGD | Background debug interface | Single-wire BDM communication pin supporting flash programming, breakpoint insertion, and real-time register inspection |
| CRGOSC / EXTAL / XTAL | Crystal oscillator interface | Supports 4–8 MHz crystal or external clock source; feeds CRGV4 clock generation block for PLL multiplication |
| CAN0TX / CAN0RX | Primary CAN transceiver interface | Differential signaling pair for CAN 2.0A/B protocol; requires external transceiver (e.g., MC33883) for physical layer compliance |
| AN0–AN7 | Analog input channels | Eight dedicated ADC input pins with shared port mapping (Port AD); support internal 5 V reference or external VRH/VRL |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0A/B Controllers | Enables redundant vehicle network communication or multi-bus topology without external arbitration logic |
| Background Debug Module (BDM) | Allows in-circuit flash reprogramming and real-time debugging without halting system clocks or requiring JTAG header |
| Programmable PLL with Clock Monitor | Provides stable 25 MHz bus clock from 4–8 MHz crystal; detects clock failure and triggers safe reset within 2 µs |
| 8-Channel 10-Bit ADC with Auto-Scan | Reduces firmware overhead by automatically sequencing conversions across AN0–AN7 with configurable sample timing |
| 8-Channel PWM with Fault Protection | Supports three-phase motor control with synchronized outputs, dead-time insertion, and immediate shutdown on FAULT pin assertion |
Applications
| Automotive Body Control Unit (BCU) | Industrial Sensor Hub |
|---|---|
Use Scenario: Centralized control of door locks, window lifts, mirror adjustment, and interior lighting in 12 V vehicle platforms. IC Role / Device Role: Main system controller coordinating LIN slave nodes, reading analog sensor inputs (potentiometers, thermistors), and driving PWM-controlled LED dimming circuits. Use Value: Dual CAN interfaces enable communication with engine ECU and infotainment head unit; 32 KB Flash accommodates A/B firmware partitioning for OTA-safe updates. |
Use Scenario: Aggregation and preprocessing of temperature, pressure, and humidity signals from distributed field sensors in factory automation. IC Role / Device Role: Edge-processing node converting analog sensor outputs to calibrated digital values, applying linearization, and transmitting over CAN bus to PLC. Use Value: On-chip 10-bit ADC eliminates external signal conditioning ICs; BDM support enables field calibration update without disassembly. |
| Brushless DC Motor Controller | Smart Power Distribution Module |
Use Scenario: Closed-loop commutation control for 3-phase BLDC motors in HVAC blowers and pump drives. IC Role / Device Role: Real-time execution of six-step commutation logic using PWM outputs, Hall-effect sensor inputs, and current-sense ADC readings. Use Value: 8-channel PWM with complementary output mode and fault shutdown ensures safe gate driver timing; 25 MHz bus frequency guarantees sub-10 µs loop execution. |
Use Scenario: Intelligent fuse replacement for 12/24 V DC distribution panels in telecom cabinets and transportation systems. IC Role / Device Role: Monitoring load current via shunt resistor ADC sampling, detecting overcurrent events, and controlling high-side MOSFET switches. Use Value: Integrated voltage regulator (VREG3V3V2) powers internal logic and external CAN transceivers; low-power STOP mode extends battery runtime during standby. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12C64CFAE25 | 64 KB Flash, same 64-pin LQFP package, identical peripheral set and register map | Supports larger firmware images and more complex state machines; no change to PCB layout or driver code | Select when future firmware growth or bootloader + application partitioning is required |
| S912XDP512J2MAG | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM, 50 MHz bus speed; different pinout (112-pin MAPBGA) | Enables offloading time-critical tasks (e.g., CAN message filtering, PID loops) from main CPU; requires new PCB design | Choose for next-generation designs needing higher throughput or parallel processing, not drop-in replacement |
Compared with MC9S12C32CFAE25, the MC9S12C64CFAE25 offers direct scalability within the same footprint and toolchain, while the S912XDP512J2MAG introduces architectural enhancements that demand hardware redesign but deliver measurable gains in deterministic interrupt handling and computational throughput.
Availability
MC9S12C32CFAE25 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and embedded motor control applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MC9S12C32CFAE25 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 heritage from Freescale's HCS12 platform.
The MC9S12C32CFAE25 belongs to the HCS12C family designed specifically for cost-sensitive, real-time automotive body electronics and industrial control where deterministic timing, CAN connectivity, and robust debug capability are essential.
FAQ
What is the maximum operating frequency of the MC9S12C32CFAE25?
The MC9S12C32CFAE25 achieves a maximum bus frequency of 25 MHz when its internal PLL is configured with a 4–8 MHz crystal input. This frequency governs instruction execution, peripheral timing, and interrupt response - all verified in the CRGV4 and CPU S12 Reference Manuals. The MC9S12C32CFAE25 does not support frequencies beyond 25 MHz under standard operating conditions.
Does the MC9S12C32CFAE25 include a hardware debug interface?
Yes, the MC9S12C32CFAE25 integrates the Background Debug Module (BDMV4), accessible via the BKGD pin. This single-wire interface supports flash programming, real-time register inspection, breakpoint setting, and non-intrusive execution control - all without requiring JTAG headers or halting the main CPU clock, as documented in Chapter 6 of the MC9S12C Family Reference Manual.
How many CAN controllers are integrated into the MC9S12C32CFAE25?
The MC9S12C32CFAE25 contains two independent Scalable Controller Area Network (S12MSCANV2) modules, each compliant with ISO 11898-1:2003 and supporting CAN 2.0A/B protocols. These controllers operate concurrently with separate message buffers, acceptance filters, and interrupt vectors - confirmed in Chapter 10 of the reference manual and Freescale's MC9S12C ordering information.
What ADC resolution and channel count does the MC9S12C32CFAE25 provide?
The MC9S12C32CFAE25 integrates the ATD10B8C analog-to-digital converter, delivering 10-bit resolution across eight input channels (AN0–AN7). Conversion time is 8 µs per channel in 8-bit mode and 12 µs in 10-bit mode, with configurable sample-and-hold timing and auto-scan sequencing - fully specified in Chapter 8 of the MC9S12C Family Reference Manual Rev 01.24.
Is the MC9S12C32CFAE25 pin-compatible with other members of the MC9S12C family?
Yes, the MC9S12C32CFAE25 shares identical pinout and signal mapping with other 64-pin LQFP variants in the MC9S12C family, including MC9S12C64CFAE25 and MC9S12C128CFAE25. This compatibility is explicitly confirmed in Appendix C ("Package Information") and Appendix D ("Derivative Differences") of the MC9S12C Family Reference Manual Rev 01.24.
MC9S12C32CFAE25 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 31
- 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:
MC9S12C32CFAE25 FAQ
1.How can I place an order for MC9S12C32CFAE25 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C32CFAE25 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 MC9S12C32CFAE25 reliable?
The price and inventory of MC9S12C32CFAE25 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C32CFAE25 is usually 5 days.
3.What payment methods are accepted for MC9S12C32CFAE25?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C32CFAE25 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12C32CFAE25?
MC9S12C32CFAE25 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C32CFAE25 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 MC9S12C32CFAE25?
For technical support, including MC9S12C32CFAE25 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C32CFAE25 requirements.
6.How does Aetrix verify that MC9S12C32CFAE25 is sourced from the original manufacturer or authorized distributors?
All MC9S12C32CFAE25 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 MC9S12C32CFAE25 meets industry standards.
7.What is the process for return or replacement of MC9S12C32CFAE25?
All MC9S12C32CFAE25 units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C32CFAE25, 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 MC9S12C32CFAE25 part is unused and in its original packaging.
Return procedure for MC9S12C32CFAE25:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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