STM32F427IIH6 - 180MHz ARM Cortex-M4 MCU with FPU | STMicroelectronics
MPN: STM32F427IIH6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $12.5 | $12.50 |
| 10 | $11.25 | $112.50 |
| 100 | $10 | $1,000.00 |
| 500 | $9 | $4,500.00 |
| 1,000 | $8.1 | $8,100.00 |
Drop-in alternatives for STM32F427IIH6 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
STM32F427IIT6
β Drop-Inπ Reference alternative (not in catalog)
STM32F429IIT6
β Drop-Inβ 99,999 In Stock
$8.5 / Unit
View Datasheet βSTM32F427IIH6 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M4 with FPU |
| Maximum Clock Frequency | 180 MHz |
| Flash Memory | 2 MB |
| SRAM | 256 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature Range | -40Β°C to +85Β°C |
| Package | UFBGA-176 (10x10 mm) |
| Number of I/O Pins | 140 |
| ADC Resolution | 12-bit |
| Number of ADC Channels | 24 |
| DAC Resolution | 12-bit |
| Number of Timers | 14 |
| Communication Interfaces | USART, SPI, I2C, USB OTG, CAN, SDIO, Ethernet MAC |
| DMA Channels | 16 |
| RoHS Status | Compliant |
STM32F427IIH6 Pin Configuration
| Pin A1 | VDD β Digital power supply |
| Pin A2 | VSS β Digital ground |
| Pin A3 | PA0 β GPIO / ADC12_IN0 / WKUP |
| Pin A4 | PA1 β GPIO / ADC12_IN1 |
| Pin A5 | PA2 β GPIO / USART2_TX / ADC12_IN2 |
| Pin A6 | PA3 β GPIO / USART2_RX / ADC12_IN3 |
| Pin A7 | PA4 β GPIO / DAC_OUT1 / ADC12_IN4 |
| Pin A8 | PA5 β GPIO / DAC_OUT2 / ADC12_IN5 |
| Pin A9 | PA6 β GPIO / SPI1_MISO / ADC12_IN6 |
| Pin A10 | PA7 β GPIO / SPI1_MOSI / ADC12_IN7 |
| Pin A11 | PA8 β GPIO / TIM1_CH1 / MCO1 |
| Pin A12 | PA9 β GPIO / USART1_TX / TIM1_CH2 |
| Pin A13 | PA10 β GPIO / USART1_RX / TIM1_CH3 |
| Pin A14 | PA11 β GPIO / USB_DM / CAN_RX |
| Pin A15 | PA12 β GPIO / USB_DP / CAN_TX |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
STM32F427IIH6 is suitable for 6 applications: Industrial Control Systems, Motor Drives, IoT Gateways, Medical Equipment, Audio Processing, Robotics.
Industrial Control Systems
The STM32F427IIH6 is ideal for industrial control systems due to its high performance (180 MHz Cortex-M4 with FPU), rich peripheral set including multiple timers, ADCs, and communication interfaces (CAN, Ethernet, USART). It can handle complex control algorithms, real-time data acquisition, and networking. In a typical PLC (Programmable Logic Controller), the MCU manages I/O modules, executes ladder logic, and communicates over industrial Ethernet. The FPU accelerates floating-point calculations for PID controllers and motor control. The device's wide temperature range and robust design ensure reliable operation in factory environments. With 2 MB flash and 256 KB SRAM, it can store large firmware and data logs. The cryptographic acceleration cell enables secure communication protocols, essential for Industry 4.0 applications.
Recommended
Motor Drives
The STM32F427IIH6 excels in motor drive applications, such as brushless DC (BLDC) and permanent magnet synchronous motor (PMSM) control. Its advanced timers generate complementary PWM signals with dead-time insertion, while the 12-bit ADCs sample phase currents and DC bus voltage. The Cortex-M4 FPU executes field-oriented control (FOC) algorithms efficiently, enabling high-bandwidth current loops. The device supports sensorless and sensor-based control, with encoder or Hall sensor interfaces. In a typical motor drive, the MCU reads rotor position, computes the next PWM duty cycle, and updates the inverter switches. The high clock speed ensures low latency, and the DMA controller offloads data transfer. The device's robust I/O structure handles high-voltage isolation requirements. With 2 MB flash, it can store multiple motor profiles and diagnostic routines.
Recommended
IoT Gateways
The STM32F427IIH6 is well-suited for IoT gateways that aggregate data from multiple sensors and communicate over Ethernet, Wi-Fi, or cellular networks. Its Ethernet MAC enables direct connection to LAN, while USB OTG supports external modems or storage. The cryptographic acceleration cell provides hardware-accelerated AES, RSA, and SHA, ensuring secure data transmission. The device can run embedded Linux or a real-time OS, handling protocol stacks like MQTT, CoAP, and TLS. With 2 MB flash and 256 KB SRAM, it can buffer sensor data and run edge analytics. The multiple UARTs, SPI, and I2C interfaces connect to various sensors and actuators. In a smart building gateway, the MCU collects temperature, humidity, and occupancy data, processes it, and sends it to the cloud. The low-power modes help reduce energy consumption when idle.
Recommended
Medical Equipment
The STM32F427IIH6 is used in medical equipment such as patient monitors, infusion pumps, and diagnostic devices. Its high performance enables real-time signal processing, such as ECG and EEG analysis. The multiple ADCs capture biosignals with high resolution, and the FPU accelerates digital filtering and feature extraction. The device's reliability and long-term availability are critical for medical applications. It supports safety-critical features like memory protection and watchdog timers. In a patient monitor, the MCU reads vital signs, displays waveforms on an LCD, and alerts staff on anomalies. The Ethernet and USB interfaces allow data logging and connectivity to hospital networks. The device's low power consumption extends battery life in portable devices. Compliance with medical standards is supported by ST's quality processes.
Recommended
Audio Processing
The STM32F427IIH6 is powerful enough for audio processing applications, such as audio effects processors, mixers, and voice-controlled devices. The Cortex-M4 FPU accelerates DSP algorithms like FIR filters, FFT, and audio codecs. The device includes I2S interfaces for connecting to audio codecs and DACs. With 2 MB flash, it can store audio samples and processing code. In a guitar effects pedal, the MCU samples the input signal, applies effects like reverb or distortion, and outputs the processed audio. The high clock speed ensures low latency, critical for real-time audio. The device's DMA controller efficiently transfers audio data between peripherals and memory. The cryptographic acceleration cell can be used for secure audio streaming. The rich peripheral set allows integration with user interfaces, such as buttons and displays.
Recommended
Robotics
The STM32F427IIH6 is a popular choice for robotics applications, including drones, robotic arms, and autonomous vehicles. Its high performance enables complex control algorithms, sensor fusion, and path planning. The multiple timers and ADCs interface with motor drivers and sensors. The FPU accelerates kinematics calculations and Kalman filtering. In a drone, the MCU reads IMU data, computes attitude, and controls the four motors via PWM. The device's communication interfaces (UART, SPI, I2C) connect to GPS, telemetry, and obstacle avoidance sensors. The 2 MB flash stores flight control firmware and logs. The device's low power consumption is crucial for battery-powered robots. The cryptographic acceleration cell can secure communication links. The wide temperature range ensures operation in outdoor environments.
Recommended
Recommended Products Summary
Engineering reference data for STM32F427IIH6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F427IIT6 | STM32F429IIT6 | STM32F427VIT6 | LPC4370 |
|---|---|---|---|---|---|
| Package | UFBGA-176 | UFBGA-176 | UFBGA-176 | LQFP-100 | BGA-256 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors |
| Core Clock | 180 MHz | 180 MHz | 180 MHz | 180 MHz | 204 MHz |
| Flash Memory | 2 MB | 2 MB | 2 MB | 2 MB | 512 KB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 136 KB |
| Ethernet MAC | Yes | Yes | Yes | Yes | Yes |
| TFT-LCD Controller | No | No | Yes | No | No |
| Operating Temperature Range | -40Β°C to +85Β°C | -40Β°C to +105Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C |
Key Differentiators
- Higher clock speed and memory (vs STM32F407VGT6)
- Integrated Ethernet MAC and cryptographic acceleration (vs STM32F407VGT6)
- Chrom-ART Accelerator for graphics (vs STM32F407VGT6)
Design Notes
The STM32F427IIH6 requires a clean power supply. Connect each VDD pin to a 100nF ceramic capacitor placed as close as possible to the pin, and add a 4.7uF bulk capacitor per supply group. The VDDA pin must be connected to a separate analog supply, decoupled with a 1uF capacitor. VREF+ should be decoupled with a 1uF capacitor to ensure ADC accuracy. Use a low-impedance ground plane to minimize noise.
For the UFBGA-176 package, ensure proper solder paste stencil design to achieve good ball-to-pad contact. Use a 0.3mm aperture for the 0.4mm pitch balls. Place decoupling capacitors on the opposite side of the PCB, directly under the VDD balls, to minimize loop inductance. Route high-speed signals (Ethernet, USB) with controlled impedance and keep traces short.
A common pitfall is incorrect BOOT0 configuration. For normal flash boot, connect BOOT0 to GND through a 10k resistor. If BOOT0 is left floating, the device may enter bootloader mode unexpectedly. Also, ensure the HSE crystal is properly connected with load capacitors as specified in the datasheet. Avoid exceeding the absolute maximum ratings on any pin, especially VDDA and VREF+.
Compliance Information
RoHS and REACH compliant per STMicroelectronics. Not AEC-Q100 qualified; for automotive, consider STM32F427IIT6 or other automotive-grade variants.
