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NXP Semiconductors MC9S12GC32CFAE
- Part No.:
- MC9S12GC32CFAE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MC9S12GC32CFAE.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,641
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Product details
Overview
MC9S12GC32CFAE from NXP Semiconductors (formerly Freescale) is a 16-bit HCS12 microcontroller featuring 32 KB on-chip Flash memory, 2 KB RAM, and a 25 MHz maximum bus frequency. It integrates an 8-channel 10-bit ADC, dual CAN 2.0A/B controllers, PWM, SPI, SCI, and BDM debug interface. Designed for automotive body electronics and industrial control, it operates across –40°C to +85°C in a 64-pin LQFP package.
For engineers reviewing the MC9S12GC32CFAE datasheet, MC9S12GC32CFAE pinout, MC9S12GC32CFAE application, or MC9S12GC32CFAE equivalent, key selection criteria include its 32 KB Flash/2 KB RAM configuration, dual CAN support with MSCAN modules, background debug capability via BKGD pin, and qualification for automotive temperature and EMC requirements per AEC-Q100 Class 2.
Technical Context
The MC9S12GC32CFAE implements the S12 CPU core with 16-bit data path, 24-bit addressing, and instruction set backward compatibility with HC12. Its memory architecture includes paged Flash and RAM with PPAGE register support, enabling up to 1 MB linear address space via bank switching.
It features two independent S12MSCANV2 modules supporting CAN 2.0A/B protocol with message buffering, acceptance filtering, and loopback self-test mode. Clock generation uses a PLL-based CRGV4 module with selectable dividers, allowing flexible system clock derivation from crystal (4–8 MHz) or external clock input.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit address bus and HC12 instruction set compatibility |
| Flash Memory | 32 KB on-chip Flash (S12FTS32KV1 module) with 10K erase/write cycles and 10-year data retention |
| RAM | 2 KB on-chip SRAM, accessible in all operating modes including WAIT/STOP |
| Max Bus Frequency | 25 MHz - determines maximum instruction throughput and peripheral timing margins |
| ADC | 8-channel 10-bit ATD10B8C with 8 µs conversion time and software/hardware trigger support |
| CAN Interfaces | Dual S12MSCANV2 modules compliant with ISO 11898-1, each with 16 message buffers and programmable bit timing |
| Operating Temperature | –40°C to +85°C - qualified for under-hood automotive and industrial environments |
| Package | 64-pin LQFP (10 × 10 mm, 0.5 mm pitch) with exposed thermal pad per Appendix C |
Pinout & Package
MC9S12GC32CFAE is housed in a 64-pin LQFP package (JEDEC MS-026AC) with 0.5 mm pitch and exposed thermal pad. Pin assignments follow the MC9S12GC-Family signal mapping defined in Chapter 1.3.1 of the Reference Manual Rev 01.24, with dedicated VDD/VSS pairs for analog/digital domains and separate PLL supply pins (VDDPLL/VSSPLL).
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1–4, 7–10, 13–16, 19–22, 25–28, 31–34, 37–40, 43–46, 49–52, 55–58, 61–64 | VSS / VDD power supply terminals | Multiple ground and 5 V supply pins distributed to minimize noise coupling and ensure stable core/analog operation |
| 23, 24, 29, 30, 35, 36, 41, 42, 47, 48, 53, 54, 59, 60 | I/O port pins (Port A, B, E, P, T) | Configurable digital I/O with internal pull-ups; Port T supports PWM output; Port E supports ADC inputs AN0–AN7 |
| 5, 6 | RESET / IRQ | Active-low reset input with internal pull-up; IRQ is edge-triggered interrupt request input |
| 11, 12 | XTAL / EXTAL | Crystal oscillator connections for 4–8 MHz fundamental-mode crystals; supports external clock input on EXTAL |
| 17, 18 | CAN0TX / CAN0RX | Differential transmit/receive signals for first CAN controller (S12MSCANV2 #0) |
| 50, 51 | CAN1TX / CAN1RX | Differential transmit/receive signals for second CAN controller (S12MSCANV2 #1) |
| 62 | BKGD | Single-wire background debug interface pin for BDMV4 programming and real-time debugging |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0A/B Controllers | Two independent S12MSCANV2 modules enable redundant or multi-bus automotive network architectures without external transceivers |
| Background Debug Module (BDMV4) | On-chip BDM enables non-intrusive flash programming, breakpoint setting, and register inspection using only BKGD pin and standard BDM firmware |
| Programmable PLL Clock Generator | CRGV4 module supports configurable PLL multiplication (×1 to ×32) and post-divider settings for precise bus clock tuning across voltage/temperature |
| 8-Channel 10-Bit ADC | ATD10B8C provides simultaneous sampling control, 8 µs conversion time, and hardware-triggered sequencing ideal for sensor monitoring loops |
| Low-Power STOP/WAIT Modes | STOP mode draws <10 µA typical; WAIT mode retains RAM and selected peripherals while halting CPU - critical for battery-powered nodes |
| Automotive-Qualified I/O | All I/O pins meet AEC-Q100 stress test requirements including ESD (±2 kV HBM), latch-up immunity, and extended temperature operation |
Applications
| Body Control Module (BCM) | Engine Control Unit (ECU) Subsystem |
|---|---|
|
Use Scenario: Centralized management of lighting, door locks, window lifts, and climate actuators in modern vehicles. IC Role / Device Role / Timing Role: Main MCU executing real-time control logic, polling switches/sensors, driving relays and LIN transceivers via SCI, and communicating over CAN bus. Use Value: Dual CAN interfaces allow concurrent communication with powertrain and infotainment networks; 32 KB Flash accommodates feature-rich firmware with diagnostics and OTA update capability. |
Use Scenario: Secondary control node for throttle actuation, turbocharger vane control, or exhaust gas recirculation (EGR) valve positioning. IC Role / Device Role / Timing Role: Safety-relevant subsystem MCU interfacing with position sensors (via ADC), driving PWM-controlled actuators, and reporting status over CAN. Use Value: AEC-Q100 qualification and -40°C to +85°C operation ensure reliability in high-heat engine bay environments; BDM debug support simplifies field calibration. |
| Industrial Motor Drive Controller | Commercial HVAC Control Panel |
|
Use Scenario: Closed-loop speed/torque control of BLDC or stepper motors in factory automation equipment. IC Role / Device Role / Timing Role: Real-time motor commutation sequencer using PWM outputs, current sensing via ADC, and fault monitoring via GPIO interrupts. Use Value: 25 MHz bus clock enables sub-microsecond PWM resolution; dual CAN allows integration into plant-wide Profibus-to-CAN gateways or distributed I/O systems. |
Use Scenario: Local zone controller managing temperature setpoints, damper positions, fan speeds, and occupancy detection in office buildings. IC Role / Device Role / Timing Role: Sensor fusion hub aggregating thermistor, humidity, and CO₂ readings; generating control outputs via PWM fans and relay-driven dampers. Use Value: Integrated 10-bit ADC eliminates external signal conditioning for most HVAC sensors; 2 KB RAM supports local PID algorithm execution and data logging buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12GC16CFAE | 16 KB Flash, 1 KB RAM, otherwise identical peripheral set and pinout | Lower firmware footprint requirement; suitable for cost-sensitive or function-limited designs | Select when application code size remains under 14 KB after linker optimization and no future feature expansion is planned |
| S912XDP512J1MALR | Enhanced XGATE co-processor, 512 KB Flash, 32 KB RAM, same S12X core and CAN modules | Higher computational throughput for complex control algorithms or multi-protocol gateway tasks | Choose when real-time processing headroom is required beyond S12 CPU alone, especially for CAN message filtering or encryption offload |
Compared with MC9S12GC16CFAE, the MC9S12GC32CFAE provides double Flash/RAM for larger control stacks and diagnostics; versus S912XDP512J1MALR, it offers lower cost and simpler toolchain support at the expense of XGATE acceleration and memory scalability.
Availability
MC9S12GC32CFAE is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and commercial HVAC systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant performance.
Supply support for MC9S12GC32CFAE 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 heritage in HCS12 and S12X architectures acquired from Freescale.
The MC9S12GC family targets cost-optimized automotive body electronics and industrial control, emphasizing CAN connectivity, robust debug infrastructure, and extended temperature operation without sacrificing code density or peripheral integration.
FAQ
What is the maximum operating frequency of the MC9S12GC32CFAE?
The MC9S12GC32CFAE supports a maximum bus frequency of 25 MHz, achieved via its integrated PLL-based clock generator (CRGV4). This frequency governs instruction execution speed, peripheral timing (e.g., CAN bit rate, ADC sampling), and overall system responsiveness. The actual achievable bus clock depends on crystal frequency (4–8 MHz), PLL multiplier/divider settings, and supply voltage stability.
Does the MC9S12GC32CFAE support CAN FD?
No, the MC9S12GC32CFAE does not support CAN FD. It integrates two S12MSCANV2 modules compliant exclusively with ISO 11898-1 (Classical CAN 2.0A/B), supporting data rates up to 1 Mbps with 11-bit standard or 29-bit extended identifiers. CAN FD requires different message framing, CRC calculation, and higher-speed transceivers not implemented in this device.
How is debug functionality implemented on the MC9S12GC32CFAE?
Debug functionality on the MC9S12GC32CFAE is provided by the Background Debug Module (BDMV4), accessed via the single BKGD pin. This enables non-intrusive flash programming, real-time register inspection, breakpoint insertion, and memory read/write operations using standard BDM firmware and host tools - no JTAG interface or additional pins required.
What ADC resolution and channel count does the MC9S12GC32CFAE provide?
The MC9S12GC32CFAE includes the ATD10B8C analog-to-digital converter, delivering 10-bit resolution across 8 input channels (AN0–AN7). Conversion time is 8 µs per sample, with support for software triggering, periodic scanning, and external event synchronization - sufficient for sensor monitoring in automotive and industrial applications.
Is the MC9S12GC32CFAE pin-compatible with other MC9S12GC family members?
Yes, the MC9S12GC32CFAE shares identical 64-pin LQFP packaging and pinout with other MC9S12GC variants (e.g., MC9S12GC16CFAE, MC9S12GC64CFAE), as confirmed in Appendix D (Derivative Differences) and Chapter 1.3.1 of the MC9S12C/GC Family Reference Manual Rev 01.24. This enables hardware reuse across memory variants during design scaling.
MC9S12GC32CFAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 48-LQFP
- Series:
- HCS12
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- HCS12
- Core Size:
- 16-Bit
- Speed:
- 25MHz
- Connectivity:
- 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:
MC9S12GC32CFAE FAQ
1.How can I place an order for MC9S12GC32CFAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12GC32CFAE 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 MC9S12GC32CFAE reliable?
The price and inventory of MC9S12GC32CFAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12GC32CFAE is usually 5 days.
3.What payment methods are accepted for MC9S12GC32CFAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12GC32CFAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12GC32CFAE?
MC9S12GC32CFAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12GC32CFAE 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 MC9S12GC32CFAE?
For technical support, including MC9S12GC32CFAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12GC32CFAE requirements.
6.How does Aetrix verify that MC9S12GC32CFAE is sourced from the original manufacturer or authorized distributors?
All MC9S12GC32CFAE 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 MC9S12GC32CFAE meets industry standards.
7.What is the process for return or replacement of MC9S12GC32CFAE?
All MC9S12GC32CFAE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12GC32CFAE, 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 MC9S12GC32CFAE part is unused and in its original packaging.
Return procedure for MC9S12GC32CFAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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