STM32F412CGU6

STMicroelectronics STM32F412CGU6 ARM Cortex-M4 MCU (1 MB Flash, UFQFPN-48)

The STMicroelectronics STM32F412CGU6 is a 32-bit ARM Cortex-M4 microcontroller tailored for performance-oriented embedded control, industrial automation, and connected IoT edge designs. Built on a Cortex-M4 core with hardware floating-point (FPU) and DSP extensions, it delivers up to 100 MHz of compute capability, paired with 1 MB of embedded Flash. Housed in a compact UFQFPN-48 package with an exposed thermal pad, the STM32F412CGU6 balances processing throughput, memory capacity, and integration in a footprint suitable for dense layouts and space-constrained systems.

Engineers and sourcing teams value this device for its active lifecycle status, RoHS compliance, wide operating voltage (1.7 V to 3.6 V), industrial temperature range (-40°C to +85°C), and a rich set of serial interfaces. Whether you are refreshing an existing design or starting a new platform, the STM32F412CGU6 provides a robust baseline that aligns with common embedded requirements while remaining procurement-friendly.

Product Highlights

• ARM Cortex-M4 core with FPU and DSP instructions for signal processing and control loops
• Up to 100 MHz maximum operating frequency for responsive firmware execution
• 1 MB embedded Flash for application code, stacks, and over-the-air update schemes
• UFQFPN-48 (7 × 7 mm) package with exposed pad for thermal and electrical performance
• Peripheral mix includes SPI, I2C, USART/UART, USB OTG FS (device/host), and family-level CAN availability (verify per variant)
• Industrial operating temperature range: -40°C to +85°C
• Wide supply voltage: 1.7 V to 3.6 V
• Surface-mount construction; supplied in tray packaging
• Lifecycle: Active (per manufacturer product page)
• RoHS and REACH compliant (per manufacturer declarations)

Key Specifications

• Core and Performance

• CPU core: ARM Cortex-M4 with FPU

• Architecture: 32-bit ARM

• Maximum frequency: Up to 100 MHz

• Memory

• Program memory (Flash): 1 MB

• SRAM: Not specified in datasheet

• Non-volatile data EEPROM: Not specified in datasheet

• Power and Environmental

• Supply voltage (VDD): 1.7 V to 3.6 V

• Operating temperature range: -40°C to +85°C

• Low-power features: Sleep, Stop, and Standby modes (typical for STM32F4 series)

• Analog and Digital Peripherals

• ADC: 12-bit SAR

• Timers, DACs, comparators: Not specified in datasheet

• Connectivity and I/O

• Interfaces: SPI, I2C, USART/UART, USB OTG FS (device/host)

• CAN: Availability depends on package/line; verify against the part-specific datasheet

• GPIO count and alternate function map: Not specified in datasheet

• Package and Mechanical

• Package: UFQFPN-48 (7 × 7 mm) with exposed pad

• Pin count: 48

• Mounting: Surface Mount

• Packaging: Tray

• Compliance

• RoHS: Compliant (per STMicroelectronics material declaration)

• REACH: SVHC compliant (per manufacturer statement)

Architecture and Performance Benefits

At the heart of the STM32F412CGU6 is an ARM Cortex-M4 core augmented with a hardware FPU and DSP instruction set. This combination is well-suited for applications that blend control and computation: filtering sensor data, running PID loops, executing coordinate transformations in motion control, or performing feature extraction in edge sensing. The FPU enables faster math and greater numerical fidelity in algorithms that rely on floating-point calculations, while the DSP extensions accelerate multiply-accumulate and other common signal-processing operations.

Running at up to 100 MHz, the device provides a responsive platform for real-time tasks without immediately resorting to higher-power application processors. For many embedded systems, this allows consolidation of control, signal processing, and communications in a single MCU footprint, simplifying the BOM and easing power and thermal design.

Interfaces and Connectivity

The STM32F412CGU6 integrates a widely used set of serial interfaces for sensor, actuator, and communications attach:

• SPI for high-speed peripheral links (displays, converters, and memory)
• I2C for multi-drop sensor networks and configuration buses
• USART/UART for legacy serial, console, and modem interfaces
• USB OTG FS supporting device/host roles for peripherals, firmware upgrade, and accessories
• CAN: availability is noted at the family level and may depend on package/line; verify the STM32F412CGU6 datasheet for confirmation before committing the design

This mix covers most embedded I/O needs and provides flexibility to partition traffic across multiple buses. As with all microcontrollers, confirm pin multiplexing and bandwidth needs against your design’s topology; GPIO counts and specific alternate function assignments are not specified here and should be checked in the datasheet.

Power Modes and Energy Strategy

Low-power operation is supported through multiple modes commonly available in the STM32F4 series: Sleep, Stop, and Standby. These modes allow designers to tailor consumption around duty cycles, data acquisition intervals, and communication bursts. While precise current figures are not specified here, the availability of several progressively deeper modes helps optimize energy use in portable instruments, battery-backed sensors, and intermittently powered systems. For best results, plan wake-up sources, clock gating, and peripheral sleep policies at the outset of your firmware architecture.

Analog Front-End Considerations

A 12-bit SAR ADC is included, providing the foundation for voltage, current, temperature, or general sensor measurements. The exact number of channels, sampling rates, and input multiplexing are not specified in the datasheet referenced here; consult the manufacturer documentation to confirm channel counts, reference requirements, and performance metrics prior to finalizing your analog front-end design.

Applications

The STMicroelectronics STM32F412CGU6 is well aligned to a broad set of embedded applications:

• Embedded control: motor control loops, human-machine interfaces, power system supervision
• Industrial automation: PLC I/O islands, protocol bridges, smart sensors, and condition monitoring
• IoT edge devices: gateway-attached nodes, USB-connected peripherals, local signal processing
• Consumer electronics: appliances, personal devices, accessory controllers
• Data logging and sensing: environmental monitors, asset trackers, and instrumentation front ends

In each case, the combination of 1 MB Flash, a high-performance Cortex-M4 core with FPU, and the standard serial interface mix presents a capable platform for both control and computation at the edge.

Lifecycle, Sourcing, and Replacements

• Lifecycle status: Active (per STMicroelectronics product page)
• Manufacturer: STMicroelectronics
• Series: STM32F412
• Replacements: Not specified in datasheet

Procurement notes:

• Packaging: Supplied in tray, suitable for automated pick-and-place
• RoHS/REACH: Compliant per manufacturer declarations
• Pricing: Contact for pricing (per provided policy)

For program risk management, plan for second-source strategies at the board level (e.g., modularizing the MCU footprint and connector breakouts) and monitor the manufacturer product page for status changes. If your design may benefit from different pin counts or peripheral mixes, consider evaluating other STM32F412 family variants; specific alternates are not provided here.

Package, Layout, and Thermal Notes

The UFQFPN-48 (7 × 7 mm) package with exposed pad enables secure thermal and electrical grounding. While exact thermal characteristics are not provided here, general best practices include:

• Tie the exposed pad to a low-impedance ground plane with multiple thermal vias
• Place high-frequency decoupling capacitors close to the VDD pins per the datasheet’s recommendations
• Route high-speed interfaces (USB FS, SPI) with controlled trace lengths and impedance as required by your system
• Verify keep-out areas, solder stencil design, and reflow profiles for reliable assembly

As always, consult the package outline drawing in the datasheet for precise land patterns, coplanarity limits, and assembly guidance.

Why Choose the STM32F412CGU6 for Your Design

• Performance where it matters: A 100 MHz Cortex-M4 with FPU and DSP can replace multi-IC solutions in many control and signal processing tasks
• Ample program space: 1 MB of Flash supports complex stacks, middleware, and field update strategies
• Balanced integration: Common serial interfaces, a 12-bit ADC, and low-power modes cover many embedded use cases without external glue logic
• Industrial readiness: Wide supply range, -40°C to +85°C temperature operation, and RoHS/REACH compliance simplify qualification
• Compact footprint: UFQFPN-48 with exposed pad fits dense layouts and aids thermal performance

Ordering Information Summary

• MPN: STM32F412CGU6
• Manufacturer/Brand: STMicroelectronics
• Series: STM32F412
• Category: Microcontrollers (MCU)
• Core: ARM Cortex-M4 with FPU
• Max clock frequency: Up to 100 MHz
• Program memory (Flash): 1 MB
• ADC: 12-bit SAR
• Supply voltage (VDD): 1.7 V to 3.6 V
• Operating temperature: -40°C to +85°C
• Package: UFQFPN-48 (7 × 7 mm) with exposed pad
• Mounting type: Surface Mount
• Packaging: Tray
• Pin count: 48
• Lifecycle: Active
• RoHS: Compliant
• REACH: Compliant

Where parameters are not listed above (e.g., SRAM size, number of ADC channels), they are not specified in the datasheet referenced here.

Compliance and Environmental

• RoHS: Device is RoHS compliant per STMicroelectronics material declaration
• REACH: REACH SVHC compliant per manufacturer statement

These declarations support use in regions and applications that require restricted hazardous substance content and disclosure of substances of very high concern.

Design and Sourcing Checklist

• Confirm exact peripheral availability (e.g., CAN) and pin multiplexing in the STM32F412CGU6 datasheet
• Validate low-power mode behavior and wake-up sources for your duty-cycle strategy
• Review USB OTG FS design notes (connector, ESD, termination) if utilized
• Size Flash usage and over-the-air update strategy against the 1 MB capacity
• Plan PCB land pattern and thermal via strategy for the UFQFPN-48 exposed pad
• Maintain compliance documentation (RoHS/REACH) in your PPAP or component dossier
• Engage supplier for current lead times and pricing (display mode: Contact for pricing)

Resources

• Product page: https://www.st.com/en/microcontrollers-microprocessors/stm32f412cg.html
• Datasheet: https://www.st.com/resource/en/datasheet/stm32f412cg.pdf

Refer to these links for definitive specifications, package drawings, and application guidance.

Frequently Asked Questions (FAQs)

• What is the CPU core and maximum frequency?

• ARM Cortex-M4 with FPU, up to 100 MHz (per STM32F412 family specifications)

• What is the Flash size for STM32F412CGU6?

• 1 MB embedded Flash

• What is the package for this MCU?

• UFQFPN-48 with exposed pad (7 × 7 mm)

• Does the STM32F412CGU6 support USB OTG FS?

• Yes, USB OTG FS (device/host) is listed among the available interfaces

• Does it include CAN?

• CAN availability depends on package/line for the STM32F412 family; verify the STM32F412CGU6 datasheet for this specific MPN

• What is the operating temperature range?

• -40°C to +85°C

• What supply voltage does it require?

• 1.7 V to 3.6 V

• Is it RoHS and REACH compliant?

• Yes, per manufacturer declarations

• Are there recommended replacements or pin-compatible variants?

• Not specified in datasheet. Evaluate other STM32F412 family options if you need different pin counts or peripheral mixes.

By combining performance, memory capacity, and a well-rounded peripheral set in a compact UFQFPN-48 package, the STMicroelectronics STM32F412CGU6 offers an attractive foundation for modern embedded and industrial control designs. Its active lifecycle status, compliance posture, and supply-voltage/temperature ranges make it a practical and low-risk choice for teams seeking a mainstream ARM Cortex-M4 MCU with 1 MB of program memory.