STM32F437IIH6 - 180MHz ARM Cortex-M4F MCU with 2MB Flash | STMicroelectronics
MPN: STM32F437IIH6 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.8 | $168.00 |
| 100 | $14.2 | $1,420.00 |
| 500 | $12.9 | $6,450.00 |
| 1,000 | $11.75 | $11,750.00 |
Drop-in alternatives for STM32F437IIH6 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:
STM32F407IIH6
β Drop-Inπ Reference alternative (not in catalog)
STM32F429IIH6
β Drop-Inπ Reference alternative (not in catalog)
STM32F439IIH6
β Drop-Inπ Reference alternative (not in catalog)
STM32F437IIH6 Maximum Ratings & Electrical Characteristics
| Core | ARM Cortex-M4F with FPU |
| Maximum Clock Frequency | 180 MHz |
| Flash Memory | 2 MB (dual-bank) |
| SRAM | 256 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature | -40Β°C to +85Β°C |
| Package | UFBGA176 (10x10 mm) |
| GPIO Pins | 140 |
| ADC | 3x 12-bit, up to 3 MSPS |
| DAC | 2x 12-bit |
| Timers | 12x 16-bit, 2x 32-bit |
| Communication Interfaces | 4x USART, 4x UART, 6x SPI, 3x I2C, 2x CAN, 1x SDIO, 1x USB 2.0 OTG HS/FS, 1x Ethernet MAC |
| TFT-LCD Controller | Yes (up to XGA) |
| Camera Interface | Yes (8-bit parallel) |
| Cryptographic Acceleration | AES, DES, 3DES, SHA-1, SHA-2 |
| DMA | 16-stream DMA controller |
| Low-Power Modes | Sleep, Stop, Standby |
| Standby Current | 2.4 Β΅A (typical) |
| RoHS Status | Compliant |
STM32F437IIH6 Pin Configuration
| Pin A1 | VDD β Digital power supply |
| Pin A2 | VSS β Digital ground |
| Pin B1 | PA0 β GPIO/ADC12_IN0 |
| Pin C1 | PA1 β GPIO/ADC12_IN1 |
| Pin D1 | PA2 β GPIO/USART2_TX |
| Pin E1 | PA3 β GPIO/USART2_RX |
| Pin F1 | PA4 β GPIO/SPI1_NSS |
| Pin G1 | PA5 β GPIO/SPI1_SCK |
| Pin H1 | PA6 β GPIO/SPI1_MISO |
| Pin J1 | PA7 β GPIO/SPI1_MOSI |
| Pin K1 | PA8 β GPIO/TIM1_CH1 |
| Pin L1 | PA9 β GPIO/USART1_TX |
| Pin M1 | PA10 β GPIO/USART1_RX |
| Pin N1 | PA11 β GPIO/USB_DM |
| Pin P1 | PA12 β GPIO/USB_DP |
| Pin R1 | PA13 β GPIO/SWDIO |
| Pin T1 | PA14 β GPIO/SWCLK |
| Pin U1 | PA15 β GPIO/JTDI |
| Pin V1 | PB0 β GPIO/ADC12_IN8 |
| Pin W1 | PB1 β GPIO/ADC12_IN9 |
| Pin Y1 | PB2 β GPIO/BOOT1 |
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
STM32F437IIH6 is suitable for 6 applications: Industrial Motor Control, Medical Monitoring Devices, High-End Consumer Electronics, IoT Gateways, Audio Processing, Test and Measurement Equipment.
Industrial Motor Control
The STM32F437IIH6 is ideal for industrial motor control due to its 180 MHz Cortex-M4F with FPU, which accelerates complex control algorithms like field-oriented control (FOC). The advanced timers generate high-resolution PWM signals, and the multiple 12-bit ADCs (up to 3 MSPS) enable precise current and voltage sensing. The device also includes CAN and Ethernet interfaces for industrial networking. In a typical motor drive, the MCU reads phase currents via ADCs, computes the FOC algorithm, and outputs PWM signals to the inverter. The FPU handles floating-point math efficiently, reducing CPU load. The dual-bank Flash allows firmware updates without stopping the motor, and the wide temperature range (-40Β°C to +85Β°C) ensures reliability in harsh environments. Compared to lower-end MCUs, the STM32F437IIH6 provides the performance headroom for advanced features like predictive maintenance and real-time diagnostics.
Recommended
Medical Monitoring Devices
The STM32F437IIH6 is well-suited for medical monitoring devices such as patient monitors and portable diagnostic equipment. Its high CPU performance enables real-time processing of biosignals like ECG and EEG, while the FPU accelerates digital filtering algorithms. The device's large memory (2 MB Flash, 256 KB SRAM) supports complex firmware and data logging. The TFT-LCD controller allows direct connection to graphical displays for waveform visualization. The cryptographic accelerators ensure secure data transmission, complying with healthcare data privacy regulations. In a typical ECG monitor, the MCU samples analog signals via ADCs, applies digital filters, and displays the waveform on an LCD. The low-power modes extend battery life in portable devices. The wide operating temperature range and industrial-grade reliability make it suitable for continuous operation in clinical settings.
Recommended
High-End Consumer Electronics
The STM32F437IIH6 powers high-end consumer electronics like smart home hubs, audio systems, and wearable devices. Its 180 MHz Cortex-M4F with FPU handles complex user interfaces, audio processing, and connectivity protocols. The Chrom-ART Accelerator offloads 2D graphics rendering, enabling smooth animations on TFT-LCD displays. The device supports multiple communication interfaces (USB, Ethernet, SPI, I2C) for connecting to sensors, displays, and wireless modules. In a smart home hub, the MCU manages Zigbee, Wi-Fi, and Bluetooth modules via UART/SPI, processes sensor data, and controls actuators. The cryptographic accelerators secure communication with cloud services. The low-power modes extend battery life in portable devices. The large memory allows storing firmware updates and user preferences.
Recommended
IoT Gateways
The STM32F437IIH6 is an excellent choice for IoT gateways that aggregate data from multiple sensors and devices. Its Ethernet MAC and USB OTG HS interfaces enable high-speed connectivity to the internet and local networks. The device's multiple UARTs, SPIs, and I2Cs allow connection to various wireless modules (e.g., Zigbee, LoRa, BLE). The cryptographic accelerators provide secure communication (TLS/DTLS) without burdening the CPU. In a typical IoT gateway, the MCU collects data from sensors via wireless modules, processes and filters it, and forwards it to the cloud via Ethernet or Wi-Fi. The large memory supports buffering and protocol stacks. The low-power modes are useful for battery-powered gateways. The wide temperature range ensures operation in outdoor environments.
Recommended
Audio Processing
The STM32F437IIH6 is capable of real-time audio processing for applications like audio effects, voice recognition, and multi-channel playback. The Cortex-M4F with FPU and DSP instructions accelerates FFT and filtering algorithms. The device includes I2S interfaces for connecting to audio codecs and a 12-bit DAC for direct analog output. In a typical audio effects processor, the MCU reads digital audio data via I2S, applies effects like reverb or equalization, and outputs the processed signal. The high clock speed ensures low latency. The large memory allows storing audio samples and impulse responses. The device's low power consumption is beneficial for portable audio devices. The TFT-LCD controller can display audio levels and user interfaces.
Recommended
Test and Measurement Equipment
The STM32F437IIH6 is used in test and measurement equipment such as oscilloscopes, logic analyzers, and data loggers. Its high-speed ADCs (up to 3 MSPS) and DMA controller enable high-throughput data acquisition. The FPU accelerates signal processing algorithms like FFT for spectrum analysis. The TFT-LCD controller provides a high-resolution display for waveforms and measurements. The device's multiple timers and communication interfaces allow synchronization with external instruments. In a typical oscilloscope, the MCU samples analog signals, processes them, and displays the waveform on an LCD. The large memory buffers captured data. The Ethernet interface enables remote control and data transfer. The wide temperature range ensures accuracy in various environments.
Recommended
Recommended Products Summary
Engineering reference data for STM32F437IIH6 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F437IIT6 | STM32F407IIH6 | STM32F429IIH6 | STM32F439IIH6 |
|---|---|---|---|---|---|
| Package | UFBGA176 | LQFP176 | UFBGA176 | UFBGA176 | UFBGA176 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core Clock | 180 MHz | 180 MHz | 168 MHz | 180 MHz | 180 MHz |
| Flash Memory | 2 MB | 2 MB | 1 MB | 2 MB | 2 MB |
| SRAM | 256 KB | 256 KB | 192 KB | 256 KB | 256 KB |
| TFT-LCD Controller | Yes | Yes | No | Yes | Yes |
| Camera Interface | Yes | Yes | No | No | Yes |
| Cryptographic Acceleration | Yes | Yes | No | Yes | Yes |
| SDRAM Controller | No | No | No | No | Yes |
Key Differentiators
- Integrated TFT-LCD controller and camera interface (vs STM32F407IIH6)
- Hardware cryptographic acceleration (vs STM32F407IIH6)
- Larger Flash and SRAM (vs STM32F407IIH6)
Design Notes
Decouple each VDD pin with a 100 nF ceramic capacitor placed as close as possible to the pin. Additionally, place a 4.7 Β΅F capacitor at the main supply input. For the VDDA pin, use a 1 Β΅F capacitor and a ferrite bead to isolate analog noise. The VBAT pin should be connected to a backup battery (1.65V to 3.6V) for RTC and backup registers; if not used, connect to VDD.
For high-speed interfaces like Ethernet and USB, follow the layout guidelines in the STM32F4 reference manual (RM0090). Keep differential pairs (USB D+/D-) impedance-matched at 90 ohms, and Ethernet TX/RX pairs at 100 ohms. Place series termination resistors close to the MCU pins. For the crystal oscillator, keep traces short and add a ground guard ring to reduce noise coupling.
The UFBGA176 package has a thermal resistance (theta_JA) of approximately 40Β°C/W. At 180 MHz with all peripherals active, power dissipation can reach 500 mW, resulting in a 20Β°C temperature rise above ambient. Ensure adequate airflow or a thermal pad connected to a copper pour for heat spreading. In high-temperature environments, consider reducing the clock frequency or using low-power modes.
Compliance Information
RoHS compliant per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive use consider STM32F437IIT6 or other automotive-grade variants.
