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NXP Semiconductors MC9S12GC32MFAE
- Part No.:
- MC9S12GC32MFAE
- Manufacturer:
- NXP Semiconductors
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MC9S12GC32MFAE.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,554
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Product details
Overview
MC9S12GC32MFAE 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, PWM, SPI, SCI, and BDM debug interface. Designed for automotive body electronics and industrial control, it operates across –40°C to +125°C in a 64-pin LQFP package.
For engineers reviewing the MC9S12GC32MFAE datasheet, MC9S12GC32MFAE pinout, MC9S12GC32MFAE application, or MC9S12GC32MFAE equivalent, key selection criteria include its S12 CPU core, integrated MSCAN modules, Flash endurance (10K erase/write cycles), extended temperature support, and legacy automotive qualification per AEC-Q100 Grade 2.
Technical Context
The MC9S12GC32MFAE implements the S12 CPU core with 16-bit data/24-bit address architecture, supporting single-cycle instruction execution for critical timing tasks. Its memory subsystem includes 32 KB of user-programmable Flash (organized as 16 KB × 2 banks), 2 KB of RAM, and 512 B of EEPROM emulation via Flash.
Peripheral integration follows the HCS12GC family architecture: dual independent MSCAN modules with full CAN 2.0B protocol support, 8-channel 10-bit ATD converter with configurable sample-and-hold, and a 16-bit timer module (TIM16B8C) with input capture, output compare, and PWM generation. Clocking uses an internal PLL with external crystal or ceramic resonator input (4–8 MHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | S12 16-bit CPU with 24-bit addressing; enables deterministic real-time control in resource-constrained embedded systems. |
| Flash Memory | 32 KB on-chip Flash (S12FTS32KV1 module); supports in-circuit programming and 10,000 erase/write cycles for firmware updates. |
| RAM Size | 2 KB on-chip RAM; sufficient for stack, variables, and real-time buffer handling in automotive sensor nodes and actuator drivers. |
| ADC Resolution | 10-bit ATD10B8C with 8 input channels; provides 1024-level analog sensing for battery voltage, temperature, and potentiometer feedback. |
| CAN Interfaces | Dual S12MSCANV2 modules compliant with ISO 11898-1; supports concurrent CAN bus communication for gateway or multi-node ECU designs. |
| Operating Temperature | –40°C to +125°C; qualified for under-hood automotive applications and industrial environments with thermal stress. |
| Package | 64-pin LQFP (10 mm × 10 mm, 0.5 mm pitch); compatible with standard reflow processes and automotive PCB layout guidelines. |
Pinout & Package
MC9S12GC32MFAE is housed in a 64-pin Low-Profile Quad Flat Package (LQFP) with exposed thermal pad. The package meets JEDEC MS-026 standards and supports lead-free assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Dedicated analog/digital power rails; requires separate decoupling per datasheet layout guidance to minimize noise coupling into ADC and CAN. |
| RESET | Active-low reset input | Asynchronous hardware reset with internal pull-up; initiates cold start sequence including clock initialization and register clearing. |
| BKGD | Background debug pin | Single-wire BDM interface for non-intrusive flash programming and real-time debugging without halting CPU operation. |
| CAN0_TX / CAN0_RX | CAN controller 0 differential signal pair | Direct connection to external CAN transceiver (e.g., MC33883); supports bit rates up to 1 Mbps with programmable timing registers. |
| AN0–AN7 | Analog input channels | Eight multiplexed ADC inputs; share port pins with digital I/O and support internal reference (VRH/VRL) or external reference configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Dual CAN 2.0B controllers | Enables simultaneous communication on two isolated CAN buses-critical for automotive gateway ECUs routing messages between powertrain and body networks. |
| Background Debug Module (BDM) | Allows field firmware updates and real-time variable inspection without dedicated JTAG header, reducing BOM cost and board space. |
| Flash EEPROM emulation | 512 B of emulated EEPROM using Flash sectors; eliminates need for external non-volatile memory in parameter storage applications. |
| 10-bit 8-channel ADC with trigger options | Supports software, timer, or external event-triggered conversions-ideal for synchronized sampling in motor control or battery monitoring. |
| Low-power STOP/WAIT modes | Current draw <10 µA in STOP mode with wake-up via CAN, interrupt, or reset; extends battery life in always-on vehicle modules. |
Applications
| Automotive Body Control Module (BCM) | Industrial Motor Drive Interface |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, lighting, and mirror adjustment in modern vehicles. IC Role / Device Role / Timing Role: Main system controller executing LIN/CAN gateway logic, sensor polling, and actuator PWM timing. Use Value: Dual CAN interfaces enable seamless integration with both chassis and infotainment networks while meeting AEC-Q100 Grade 2 reliability requirements. |
Use Scenario: Closed-loop speed and position control of BLDC motors in HVAC blowers or conveyor systems. IC Role / Device Role / Timing Role: Real-time motion controller managing ADC feedback, PWM generation, and fault detection within tight timing windows. Use Value: 25 MHz bus speed and deterministic S12 instruction timing ensure sub-100 µs loop execution for stable velocity regulation. |
| Smart Battery Management Unit | Commercial Vehicle Telematics Gateway |
|
Use Scenario: Monitoring cell voltages, temperatures, and charge/discharge current in 12 V auxiliary battery systems. IC Role / Device Role / Timing Role: Analog front-end processor with 10-bit ADC and CAN reporting engine. Use Value: Integrated VRH/VRL reference and on-chip temperature sensor reduce external component count and improve measurement consistency over temperature. |
Use Scenario: Aggregating GPS, CAN bus diagnostics, and cellular modem status for fleet tracking and remote diagnostics. IC Role / Device Role / Timing Role: Protocol translator and message router between multiple CAN buses, UART peripherals, and external modems. Use Value: Dual MSCAN modules allow concurrent access to engine and chassis CAN networks without arbitration delay or software overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC9S12GC64MFAE | 64 KB Flash, same package and peripheral set; higher code capacity for complex diagnostics or bootloader features. | Preferred where future firmware expansion or dual-application partitioning (e.g., secure boot + main app) is required. | Select when >32 KB Flash headroom is needed without changing PCB layout or driver software. |
| S912XDG128F0MLH | Enhanced XGATE co-processor, 128 KB Flash, upgraded CAN FD support; not pin-compatible. | Targeted at next-generation telematics requiring offload processing and higher bandwidth communication. | Choose only if migrating to XGATE-accelerated architectures and CAN FD; requires new schematic and layout. |
Compared with MC9S12GC32MFAE, the MC9S12GC64MFAE offers direct scalability in Flash size while preserving identical pinout and software compatibility, whereas the S912XDG128F0MLH introduces architectural enhancements that necessitate full hardware and firmware redesign.
Availability
MC9S12GC32MFAE is available at Aetrix Electronics and suitable for automotive body electronics, industrial motor control, and commercial vehicle telematics requiring stable component supply and long-term lifecycle support.
Supply support for MC9S12GC32MFAE 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 MC9S12GC family was engineered specifically for cost-sensitive, high-reliability automotive body electronics and industrial control applications demanding robust CAN communication and extended temperature operation.
FAQ
What is the maximum operating frequency of the MC9S12GC32MFAE?
The MC9S12GC32MFAE features an S12 CPU core with a maximum bus frequency of 25 MHz. This is achieved using an internal PLL that multiplies an external 4–8 MHz crystal input. The core executes instructions at this bus speed, enabling deterministic real-time response for time-critical automotive functions. The MC9S12GC32MFAE does not support overclocking beyond its specified 25 MHz bus limit.
Does the MC9S12GC32MFAE support CAN FD?
No, the MC9S12GC32MFAE implements two S12MSCANV2 modules compliant with ISO 11898-1 Classic CAN (up to CAN 2.0B), supporting bit rates up to 1 Mbps. It does not support CAN FD frame format, data rate switching, or enhanced payload length. For CAN FD capability, designers must consider newer NXP families such as S32K or S912ZVL.
How is Flash memory programmed on the MC9S12GC32MFAE?
Flash programming on the MC9S12GC32MFAE is performed via the Background Debug Module (BDM) interface using standard Freescale/NXP BDM protocols. The device supports in-system programming without removing the chip from the board. Programming requires a BDM debugger (e.g., U-Multilink), compatible software (e.g., CodeWarrior or S32DS), and adherence to Flash command sequences defined in the S12FTS32KV1 module documentation.
What is the purpose of the BKGD pin on the MC9S12GC32MFAE?
The BKGD pin on the MC9S12GC32MFAE serves as the single-wire serial interface for the Background Debug Module (BDM). It enables non-intrusive debugging, flash programming, and real-time memory inspection without halting CPU execution. The pin operates at VDD logic levels and requires no external pull-up resistor due to an internal weak pull-up, simplifying board design for production and service diagnostics.
Is the MC9S12GC32MFAE qualified for automotive use?
Yes, the MC9S12GC32MFAE is qualified to AEC-Q100 Grade 2 (–40°C to +105°C ambient) and widely deployed in automotive body electronics. While the MFAE suffix indicates a 64-pin LQFP package rated for –40°C to +125°C junction temperature, final system qualification depends on board-level thermal design and application-specific stress testing per OEM requirements.
MC9S12GC32MFAE 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MC9S12GC32MFAE FAQ
1.How can I place an order for MC9S12GC32MFAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC9S12GC32MFAE 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 MC9S12GC32MFAE reliable?
The price and inventory of MC9S12GC32MFAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC9S12GC32MFAE is usually 5 days.
3.What payment methods are accepted for MC9S12GC32MFAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC9S12GC32MFAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC9S12GC32MFAE?
MC9S12GC32MFAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC9S12GC32MFAE 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 MC9S12GC32MFAE?
For technical support, including MC9S12GC32MFAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC9S12GC32MFAE requirements.
6.How does Aetrix verify that MC9S12GC32MFAE is sourced from the original manufacturer or authorized distributors?
All MC9S12GC32MFAE 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 MC9S12GC32MFAE meets industry standards.
7.What is the process for return or replacement of MC9S12GC32MFAE?
All MC9S12GC32MFAE units undergo pre-shipment inspection (PSI). If there is an issue with MC9S12GC32MFAE, 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 MC9S12GC32MFAE part is unused and in its original packaging.
Return procedure for MC9S12GC32MFAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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