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NXP Semiconductors MC9S12C32CFAE16
- Part No.:
- MC9S12C32CFAE16
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MC9S12C32CFAE16.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,655
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Product details
Overview
MC9S12C32CFAE16 from NXP (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 32 KB on-chip Flash, 2 KB RAM, and a 25 MHz bus speed. 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 MC9S12C32CFAE16 datasheet, MC9S12C32CFAE16 pinout, MC9S12C32CFAE16 application, or MC9S12C32CFAE16 equivalent, key selection criteria include its 48-pin LQFP package, 5V tolerant I/O, integrated CAN transceivers (via external PHY), BDM-based in-circuit debugging, and qualification for automotive temperature range (–40°C to +85°C).
Technical Context
The MC9S12C32CFAE16 implements the S12 CPU core with 16-bit data path, Harvard architecture, and 24-bit addressing. Its memory subsystem includes 32 KB Flash (S12FTS32KV1 module), 2 KB RAM, and configurable EEPROM emulation via Flash. The device uses a PLL-based clock generation system supporting crystal or external clock input, with multiple low-power modes (WAIT, STOP, Pseudo-STOP) managed by the CRGV4 module.
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 PWM8B6CV1 (8-bit, 6-channel PWM). All modules are memory-mapped and share interrupt vectors via INTV1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit address bus and 16-bit ALU; enables deterministic real-time execution and efficient C compilation. |
| Flash Memory | 32 KB on-chip Flash (S12FTS32KV1); supports in-application programming (IAP) and EEPROM emulation for parameter storage. |
| RAM | 2 KB on-chip RAM; sufficient for real-time stack, ISR context, and small data buffers without external memory. |
| Max Bus Speed | 25 MHz; defines maximum peripheral timing and instruction throughput (up to 25 MIPS at 25 MHz E-clock). |
| ADC Resolution & Channels | 10-bit ATD10B8C with 8 analog inputs; provides 1024-level precision for sensor signal digitization in automotive and industrial sensing. |
| CAN Interfaces | Dual S12MSCANV2 modules compliant with ISO 11898-1; support CAN 2.0A/B protocols for robust vehicle network communication. |
| Package | 48-pin LQFP (7 mm × 7 mm, 0.5 mm pitch); RoHS-compliant, surface-mountable, and compatible with standard reflow profiles. |
| Operating Temperature | –40°C to +85°C; qualified for under-hood and industrial control environments per AEC-Q100 stress test requirements. |
Pinout & Package
MC9S12C32CFAE16 is housed in a 48-pin LQFP package (JEDEC MS-026AC) with exposed thermal pad. Pin assignments follow the MC9S12C-Family derivative mapping defined in Chapter 1.3.1 of the Reference Manual (Rev 01.24), with dedicated VDD/VSS pairs, BDM interface (BKGD, RESET), dual CAN TX/RX, and multiplexed port pins (Port A, B, E, K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BKGD | Background Debug Interface | Single-wire serial interface for BDMV4; enables non-intrusive flash programming, breakpoint setting, and real-time register inspection. |
| RESET | Active-Low Reset Input | Asynchronous reset trigger; initiates power-on, watchdog, or external reset sequence and clears CPU registers and peripherals. |
| CAN0_TX / CAN0_RX | CAN Controller 0 Differential Interface | Connects to external CAN transceiver (e.g., TJA1040); supports bit rates up to 1 Mbps with programmable timing registers. |
| CAN1_TX / CAN1_RX | CAN Controller 1 Differential Interface | Independent second CAN channel; enables multi-bus architectures (e.g., powertrain + body networks) without software arbitration. |
| AD0–AD7 | Analog Input Channels | Map to Port A and Port E pins; support simultaneous sampling and hardware-triggered conversion sequences via ATD10B8C. |
| PT0–PT7 | General-Purpose I/O / Timer Inputs | Port T pins serve as 8-bit parallel I/O or timer input capture/compare outputs; configurable pull-up/pull-down and slew rate. |
Key Features
| Feature | Design Value |
|---|---|
| Background Debug Module (BDMV4) | Enables full in-circuit debugging without JTAG; supports flash erase/write, register read/write, and real-time trace via single BKGD pin. |
| Dual CAN 2.0A/B Controllers | Two independent S12MSCANV2 modules with message objects, acceptance filtering, and error counters-eliminates need for external CAN controllers. |
| Configurable Low-Power Modes | WAIT, STOP, and Pseudo-STOP modes reduce current to <10 µA (STOP) while retaining RAM and register state for fast wake-up (<4 µs). |
| Integrated Clock Monitor & COP Watchdog | CRGV4 module detects clock failure and triggers safe reset; Computer Operating Properly (COP) watchdog prevents runaway code execution. |
| Hardware PWM with Dead-Time Insertion | PWM8B6CV1 supports complementary output pairs with programmable dead-time; essential for driving half-bridge and H-bridge motor drivers. |
| 5V-Tolerant Digital I/O | All general-purpose ports tolerate 5V inputs regardless of VDD level (typically 5V); simplifies interfacing with legacy sensors and logic families. |
Applications
| Automotive Body Control Unit (BCU) | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, mirrors, and lighting in passenger vehicles. IC Role / Device Role / Timing Role: Main MCU executing LIN/CAN gateway logic, analog sensor acquisition (potentiometers, temp), and PWM-driven actuator control. Use Value: Dual CAN interfaces enable seamless integration into vehicle backbone and sub-networks; BDM support accelerates ECU calibration and validation cycles. |
Use Scenario: Closed-loop speed/torque control of 3-phase BLDC motors in HVAC blowers or conveyor systems. IC Role / Device Role / Timing Role: Real-time controller managing ADC sampling (current/voltage feedback), PWM generation, and fault detection (overcurrent, overtemp). Use Value: Hardware PWM with dead-time insertion and synchronized ADC triggers ensure precise commutation timing and current regulation accuracy. |
| Smart Sensor Node (CAN-Based) | Embedded Power Supply Monitor |
|
Use Scenario: Distributed temperature, pressure, and humidity sensing in factory automation with CAN bus reporting. IC Role / Device Role / Timing Role: Sensor fusion MCU acquiring analog signals, performing linearization, and transmitting data via CAN frames at fixed intervals. Use Value: Integrated 10-bit ADC and dual CAN controllers eliminate external signal conditioning ICs and reduce BOM count by ≥3 components. |
Use Scenario: Monitoring input voltage, output rail stability, and thermal shutdown thresholds in industrial DC-DC converters. IC Role / Device Role / Timing Role: Supervisor MCU sampling analog rails via ATD, comparing against thresholds, and asserting fault flags or initiating soft shutdown. Use Value: On-chip voltage regulator (VREG3V3V2) powers internal logic; 5V-tolerant I/O allows direct connection to unregulated 12V/24V supply monitoring points. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit automotive microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12C64CFAE16 | 64 KB Flash, same 48-pin LQFP package and peripheral set; identical pinout and register map. | Supports larger firmware images and more complex CAN message handling; suitable when >32 KB code space is required. | Select MC9S12C64CFAE16 only if firmware growth exceeds 32 KB; no PCB change needed due to pin compatibility. |
| S912ZVL32F0MLFR | S12Z core (enhanced S12), 32 KB Flash, 2 KB RAM, same CAN/ADC/PWM peripherals; 48-pin LQFP but different pin assignment for CAN and ADC. | Offers improved EMI immunity, faster wake-up, and enhanced debug features; requires PCB layout revision for CAN routing and ADC reference connections. | Choose S912ZVL32F0MLFR for new designs needing higher reliability or extended lifecycle; not drop-in replaceable for MC9S12C32CFAE16. |
Compared with MC9S12C32CFAE16, MC9S12C64CFAE16 offers scalable code density without design changes, while S912ZVL32F0MLFR delivers architectural upgrades at the cost of board redesign-making the former ideal for firmware expansion and the latter for next-generation robustness.
Availability
MC9S12C32CFAE16 is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and smart sensor node applications requiring stable component supply, long-term manufacturability, and automotive-grade qualification.
Supply support for MC9S12C32CFAE16 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.
The MC9S12C family was designed specifically for cost-sensitive, high-reliability automotive body electronics and industrial control applications where CAN networking, analog sensing, and deterministic real-time performance are critical.
FAQ
What is the maximum operating frequency of the MC9S12C32CFAE16?
The MC9S12C32CFAE16 supports a maximum bus frequency of 25 MHz, derived from its internal PLL clock generator (CRGV4). This corresponds to a maximum core instruction rate of 25 million instructions per second (MIPS) under optimal conditions. The actual achievable frequency depends on external crystal or oscillator source, PLL multiplication factor, and system voltage.
Does the MC9S12C32CFAE16 include an integrated CAN transceiver?
No, the MC9S12C32CFAE16 includes two fully compliant CAN 2.0A/B controllers (S12MSCANV2) but requires external CAN transceivers (e.g., TJA1040 or SN65HVD230) for physical layer signaling. Its CAN_TX and CAN_RX pins are CMOS-level digital outputs/inputs and must be connected to a transceiver to drive the differential CAN_H/CAN_L bus.
How is debugging supported on the MC9S12C32CFAE16?
Debugging is implemented via the Background Debug Module (BDMV4), accessed through the single BKGD pin and RESET line. This allows full in-circuit flash programming, register inspection, breakpoint setting, and real-time variable monitoring without JTAG hardware. Freescale's Codewarrior IDE and standalone BDM interfaces (e.g., USB-BDM) are fully compatible with MC9S12C32CFAE16.
What is the purpose of the VREG3V3V2 module in the MC9S12C32CFAE16?
The VREG3V3V2 module is an on-chip 3.3 V voltage regulator that supplies internal logic circuits-including the CPU core, Flash controller, and peripheral modules-while accepting a 5 V VDD input. It eliminates the need for an external 3.3 V regulator in most designs, reducing BOM cost and board area. Output current capability is limited to ~50 mA, sufficient for internal loads only.
Can the MC9S12C32CFAE16 operate from a 3.3 V supply?
No, the MC9S12C32CFAE16 is specified for 4.5 V to 5.5 V operation only. Its I/O structure, Flash programming voltage, and internal regulators (including VREG3V3V2) require a nominal 5 V supply. Attempting to operate below 4.5 V may result in undefined behavior, failed Flash writes, or unstable CAN communication.
MC9S12C32CFAE16 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:
- 16MHz
- 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:
MC9S12C32CFAE16 FAQ
1.How can I place an order for MC9S12C32CFAE16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12C32CFAE16 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 MC9S12C32CFAE16 reliable?
The price and inventory of MC9S12C32CFAE16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12C32CFAE16 is usually 5 days.
3.What payment methods are accepted for MC9S12C32CFAE16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12C32CFAE16 transactions.
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4.How is shipping managed for MC9S12C32CFAE16?
MC9S12C32CFAE16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12C32CFAE16 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 MC9S12C32CFAE16?
For technical support, including MC9S12C32CFAE16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12C32CFAE16 requirements.
6.How does Aetrix verify that MC9S12C32CFAE16 is sourced from the original manufacturer or authorized distributors?
All MC9S12C32CFAE16 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 MC9S12C32CFAE16 meets industry standards.
7.What is the process for return or replacement of MC9S12C32CFAE16?
All MC9S12C32CFAE16 units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12C32CFAE16, 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 MC9S12C32CFAE16 part is unused and in its original packaging.
Return procedure for MC9S12C32CFAE16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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