STM32F437IIT6 - 180MHz 2MB Flash ARM Cortex-M4 MCU | STMicroelectronics
MPN: STM32F437IIT6 ✓ Hoạt độngSTM32F437IIT6 Tóm tắt
A microcontroller (MCU) is a self-contained computer on a single chip that combines a processor core, program memory (Flash), data memory (SRAM), and configurable peripherals such as timers, serial interfaces, and analog-to-digital converters. MCUs sit at the heart of embedded systems, forming the boundary between the physical world (sensors, actuators) and digital processing. The STM32F437IIT6 belongs to the STM32F4 high-performance family, which itself is part of the broader STM32 32-bit ARM Cortex-M portfolio, positioned above the mainstream STM32F1/F0 lines and below the graphics-capable STM32F7/H7 series.
Key features include 2 MB dual-bank Flash with read-while-write capability, 256 KB SRAM plus 4 KB backup SRAM, a Chrom-ART Accelerator for 2D graphics, a hardware JPEG codec, and a true random number generator (RNG). The device provides 140 general-purpose I/O pins, three 12-bit ADCs (24 channels, up to 2.4 MSPS), two 12-bit DACs, and a rich set of communication peripherals including Ethernet MAC, USB OTG HS/FS, CAN, and multiple USART/SPI/I2C interfaces.
The STM32F437IIT6 is built on ST's 90 nm embedded Flash process and operates from 1.7 V to 3.6 V, with a typical run-mode current of 38 mA at 180 MHz. Its ART Accelerator and adaptive real-time memory accelerator allow true zero-wait-state execution, while the FPU and DSP instruction set enable efficient motor control, audio processing, and sensor fusion algorithms without an external coprocessor.
Typical applications include industrial motor drives and PLCs, audio and voice processing equipment, medical instrumentation, and IoT gateways requiring Ethernet connectivity. The 176-pin LQFP package with 140 I/O makes it well suited to designs needing extensive peripheral fan-out.
When designing with this device, ensure the VCAP pins are decoupled with the specified 2.2 uF low-ESR capacitors and that the 1.2 V core regulator is not loaded externally. The dual-bank Flash supports in-application programming, which is valuable for field firmware updates.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selection, second-sourcing, and layout decisions.
Bộ thay thế dễ dàng lắp đặt cho STM32F437IIT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32F437IIT6 (cùng hình factor và footprint) — khác nhau ở Package, Flash Memory, Mounting Type, SRAM, ADC.
STM32F439IIT6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32F427IIT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F429IIT6
✅ Drop-In✗ Hết hàng
$8.3523 / Đơn vị
Xem tài liệu →STM32F437IIH6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32F437IIT7
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32F437IIT6 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4 32-bit RISC with FPU |
| Maximum CPU Frequency | 180 MHz |
| Flash Memory | 2 MB (2M x 8), dual-bank |
| SRAM | 256 KB + 4 KB backup SRAM |
| DMIPS | 225 DMIPS at 180 MHz |
| Supply Voltage Range | 1.7 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C |
| Hộp | LQFP-176 (24x24 mm) |
| Number of I/O Pins | 140 |
| ADC | 3x 12-bit, 24 channels, up to 2.4 MSPS |
| DAC | 2x 12-bit |
| Communication Interfaces | Ethernet MAC, USB OTG HS/FS, CAN, USART, SPI, I2C |
| Timers | Advanced-control, general-purpose and basic timers |
| Graphics Accelerator | Chrom-ART Accelerator (DMA2D) |
| Security Features | True random number generator (RNG), hardware crypto |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32F437IIT6
| Chân 1 | PE2 — GPIO port E bit 2 |
| Chân 2 | PE3 — GPIO port E bit 3 |
| Chân 3 | PE4 — GPIO port E bit 4 |
| Chân 4 | PE5 — GPIO port E bit 5 |
| Chân 5 | PE6 — GPIO port E bit 6 |
| Chân 6 | VBAT — Backup domain supply voltage |
| Chân 7 | PC13 — GPIO port C bit 13 |
| Chân 8 | PC14-OSC32_IN — GPIO / 32.768 kHz oscillator input |
| Chân 9 | PC15-OSC32_OUT — GPIO / 32.768 kHz oscillator output |
| Chân 10 | PF0 — GPIO port F bit 0 |
| Chân 11 | PF1 — GPIO port F bit 1 |
| Chân 12 | PF2 — GPIO port F bit 2 |
| Chân 13 | PF3 — GPIO port F bit 3 |
| Chân 14 | PF4 — GPIO port F bit 4 |
| Chân 15 | PF5 — GPIO port F bit 5 |
| Chân 16 | VSS — Ground |
| Chân 17 | VDD — Digital supply voltage |
| Chân 18 | PF6 — GPIO port F bit 6 |
| Chân 19 | PF7 — GPIO port F bit 7 |
| Chân 20 | PF8 — GPIO port F bit 8 |
| Chân 21 | PF9 — GPIO port F bit 9 |
| Chân 22 | PF10 — GPIO port F bit 10 |
| Chân 23 | PH0-OSC_IN — GPIO / HSE oscillator input |
| Chân 24 | PH1-OSC_OUT — GPIO / HSE oscillator output |
| Chân 25 | NRST — Reset input (active low) |
| Chân 26 | PC0 — GPIO port C bit 0 |
| Chân 27 | PC1 — GPIO port C bit 1 |
| Chân 28 | PC2 — GPIO port C bit 2 |
| Chân 29 | PC3 — GPIO port C bit 3 |
| Chân 30 | VDD — Digital supply voltage |
| Chân 31 | VSSA — Analog ground |
| Chân 32 | VREF+ — ADC/DAC reference voltage |
| Chân 33 | VDDA — Analog supply voltage |
| Chân 34 | PA0-WKUP — GPIO / wakeup pin |
| Chân 35 | PA1 — GPIO port A bit 1 |
| Chân 36 | PA2 — GPIO port A bit 2 |
| Chân 37 | PA3 — GPIO port A bit 3 |
| Chân 38 | VSS — Ground |
| Chân 39 | VDD — Digital supply voltage |
| Chân 40 | PA4 — GPIO port A bit 4 |
| Chân 41 | PA5 — GPIO port A bit 5 |
| Chân 42 | PA6 — GPIO port A bit 6 |
| Chân 43 | PA7 — GPIO port A bit 7 |
| Chân 44 | PC4 — GPIO port C bit 4 |
| Chân 45 | PC5 — GPIO port C bit 5 |
| Chân 46 | PB0 — GPIO port B bit 0 |
| Chân 47 | PB1 — GPIO port B bit 1 |
| Chân 48 | PB2 — GPIO port B bit 2 |
| Chân 49 | PF11 — GPIO port F bit 11 |
| Chân 50 | PF12 — GPIO port F bit 12 |
| Chân 51 | VSS — Ground |
| Chân 52 | VDD — Digital supply voltage |
| Chân 53 | PF13 — GPIO port F bit 13 |
| Chân 54 | PF14 — GPIO port F bit 14 |
| Chân 55 | PF15 — GPIO port F bit 15 |
| Chân 56 | PG0 — GPIO port G bit 0 |
| Chân 57 | PG1 — GPIO port G bit 1 |
| Chân 58 | PE7 — GPIO port E bit 7 |
| Chân 59 | PE8 — GPIO port E bit 8 |
| Chân 60 | PE9 — GPIO port E bit 9 |
| Chân 61 | VSS — Ground |
| Chân 62 | VDD — Digital supply voltage |
| Chân 63 | PE10 — GPIO port E bit 10 |
| Chân 64 | PE11 — GPIO port E bit 11 |
| Chân 65 | PE12 — GPIO port E bit 12 |
| Chân 66 | PE13 — GPIO port E bit 13 |
| Chân 67 | PE14 — GPIO port E bit 14 |
| Chân 68 | PE15 — GPIO port E bit 15 |
| Chân 69 | PB10 — GPIO port B bit 10 |
| Chân 70 | PB11 — GPIO port B bit 11 |
| Chân 71 | VCAP_1 — Core regulator decoupling capacitor |
| Chân 72 | VDD — Digital supply voltage |
| Chân 73 | PB12 — GPIO port B bit 12 |
| Chân 74 | PB13 — GPIO port B bit 13 |
| Chân 75 | PB14 — GPIO port B bit 14 |
| Chân 76 | PB15 — GPIO port B bit 15 |
| Chân 77 | PD8 — GPIO port D bit 8 |
| Chân 78 | PD9 — GPIO port D bit 9 |
| Chân 79 | PD10 — GPIO port D bit 10 |
| Chân 80 | PD11 — GPIO port D bit 11 |
| Chân 81 | PD12 — GPIO port D bit 12 |
| Chân 82 | PD13 — GPIO port D bit 13 |
| Chân 83 | PD14 — GPIO port D bit 14 |
| Chân 84 | PD15 — GPIO port D bit 15 |
| Chân 85 | PG2 — GPIO port G bit 2 |
| Chân 86 | PG3 — GPIO port G bit 3 |
| Chân 87 | PG4 — GPIO port G bit 4 |
| Chân 88 | PG5 — GPIO port G bit 5 |
| Chân 89 | PG6 — GPIO port G bit 6 |
| Chân 90 | PG7 — GPIO port G bit 7 |
| Chân 91 | PG8 — GPIO port G bit 8 |
| Chân 92 | VSS — Ground |
| Chân 93 | VDD — Digital supply voltage |
| Chân 94 | PC6 — GPIO port C bit 6 |
| Chân 95 | PC7 — GPIO port C bit 7 |
| Chân 96 | PC8 — GPIO port C bit 8 |
| Chân 97 | PC9 — GPIO port C bit 9 |
| Chân 98 | PA8 — GPIO port A bit 8 |
| Chân 99 | PA9 — GPIO port A bit 9 |
| Chân 100 | PA10 — GPIO port A bit 10 |
| Chân 101 | PA11 — GPIO port A bit 11 |
| Chân 102 | PA12 — GPIO port A bit 12 |
| Chân 103 | PA13 — GPIO port A bit 13 |
| Chân 104 | VCAP_2 — Core regulator decoupling capacitor |
| Chân 105 | VSS — Ground |
| Chân 106 | VDD — Digital supply voltage |
| Chân 107 | PA14 — GPIO port A bit 14 |
| Chân 108 | PA15 — GPIO port A bit 15 |
| Chân 109 | PC10 — GPIO port C bit 10 |
| Chân 110 | PC11 — GPIO port C bit 11 |
| Chân 111 | PC12 — GPIO port C bit 12 |
| Chân 112 | PD0 — GPIO port D bit 0 |
| Chân 113 | PD1 — GPIO port D bit 1 |
| Chân 114 | PD2 — GPIO port D bit 2 |
| Chân 115 | PD3 — GPIO port D bit 3 |
| Chân 116 | PD4 — GPIO port D bit 4 |
| Chân 117 | PD5 — GPIO port D bit 5 |
| Chân 118 | VSS — Ground |
| Chân 119 | VDD — Digital supply voltage |
| Chân 120 | PD6 — GPIO port D bit 6 |
| Chân 121 | PD7 — GPIO port D bit 7 |
| Chân 122 | PG9 — GPIO port G bit 9 |
| Chân 123 | PG10 — GPIO port G bit 10 |
| Chân 124 | PG11 — GPIO port G bit 11 |
| Chân 125 | PG12 — GPIO port G bit 12 |
| Chân 126 | PG13 — GPIO port G bit 13 |
| Chân 127 | PG14 — GPIO port G bit 14 |
| Chân 128 | VSS — Ground |
| Chân 129 | VDD — Digital supply voltage |
| Chân 130 | PG15 — GPIO port G bit 15 |
| Chân 131 | PB3 — GPIO port B bit 3 |
| Chân 132 | PB4 — GPIO port B bit 4 |
| Chân 133 | PB5 — GPIO port B bit 5 |
| Chân 134 | PB6 — GPIO port B bit 6 |
| Chân 135 | PB7 — GPIO port B bit 7 |
| Chân 136 | BOOT0 — Boot mode selection input |
| Chân 137 | PB8 — GPIO port B bit 8 |
| Chân 138 | PB9 — GPIO port B bit 9 |
| Chân 139 | PE0 — GPIO port E bit 0 |
| Chân 140 | PE1 — GPIO port E bit 1 |
| Chân 141 | VSS — Ground |
| Chân 142 | VDD — Digital supply voltage |
| Chân 143 | PF11 — GPIO port F bit 11 (alternate function) |
| Chân 144 | PF12 — GPIO port F bit 12 (alternate function) |
| Chân 145 | PF13 — GPIO port F bit 13 (alternate function) |
| Chân 146 | PF14 — GPIO port F bit 14 (alternate function) |
| Chân 147 | PF15 — GPIO port F bit 15 (alternate function) |
| Chân 148 | PG0 — GPIO port G bit 0 (alternate function) |
| Chân 149 | PG1 — GPIO port G bit 1 (alternate function) |
| Chân 150 | VSS — Ground |
| Chân 151 | VDD — Digital supply voltage |
| Chân 152 | PG2 — GPIO port G bit 2 (alternate function) |
| Chân 153 | PG3 — GPIO port G bit 3 (alternate function) |
| Chân 154 | PG4 — GPIO port G bit 4 (alternate function) |
| Chân 155 | PG5 — GPIO port G bit 5 (alternate function) |
| Chân 156 | PG6 — GPIO port G bit 6 (alternate function) |
| Chân 157 | PG7 — GPIO port G bit 7 (alternate function) |
| Chân 158 | PG8 — GPIO port G bit 8 (alternate function) |
| Chân 159 | VSS — Ground |
| Chân 160 | VDD — Digital supply voltage |
| Chân 161 | PC6 — GPIO port C bit 6 (alternate function) |
| Chân 162 | PC7 — GPIO port C bit 7 (alternate function) |
| Chân 163 | PC8 — GPIO port C bit 8 (alternate function) |
| Chân 164 | PC9 — GPIO port C bit 9 (alternate function) |
| Chân 165 | PA8 — GPIO port A bit 8 (alternate function) |
| Chân 166 | PA9 — GPIO port A bit 9 (alternate function) |
| Chân 167 | PA10 — GPIO port A bit 10 (alternate function) |
| Chân 168 | PA11 — GPIO port A bit 11 (alternate function) |
| Chân 169 | PA12 — GPIO port A bit 12 (alternate function) |
| Chân 170 | PA13 — GPIO port A bit 13 (alternate function) |
| Chân 171 | VSS — Ground |
| Chân 172 | VDD — Digital supply voltage |
| Chân 173 | PA14 — GPIO port A bit 14 (alternate function) |
| Chân 174 | PA15 — GPIO port A bit 15 (alternate function) |
| Chân 175 | PC10 — GPIO port C bit 10 (alternate function) |
| Chân 176 | PC11 — GPIO port C bit 11 (alternate function) |
Ứng dụng tiêu biểu
STM32F437IIT6 phù hợp cho 6 Áp dụngs: Industrial Motor Control and Drives, Audio and Voice Processing Equipment, Medical Instrumentation and Patient Monitoring, IoT Gateways and Industrial Networking, Graphical User Interface and HMI Panels, Test and Measurement Instrumentation.
Industrial Motor Control and Drives
The STM32F437IIT6 fits industrial motor control because its 180 MHz Cortex-M4 with FPU and DSP instructions executes field-oriented control (FOC) loops in well under 10 us, while three 12-bit ADCs sampling at up to 2.4 MSPS capture three-phase current feedback simultaneously. Advanced-control timers generate complementary PWM with programmable dead-time for inverter bridges, and the CAN interface links drives to industrial networks. In a typical three-phase inverter, the MCU runs the Clarke/Park transforms and PI current regulators in hardware-accelerated floating point, leaving headroom for position estimation and safety monitoring. The trade-off versus a dedicated motor-control MCU is higher power consumption, but the 2 MB Flash accommodates complex control algorithms and communication stacks without external memory.
Được đề xuất
Audio and Voice Processing Equipment
The STM32F437IIT6 suits audio processing because its Cortex-M4 FPU and DSP instruction set handle FIR/IIR filtering, FFT, and sample-rate conversion in real time, while the two 12-bit DACs and I2S peripherals interface directly to audio codecs. The 2 MB Flash stores filter coefficients and audio buffers, and the 256 KB SRAM supports double-buffered DMA transfers that keep the CPU free for algorithm execution. In a voice-processing front end, the MCU performs beamforming and noise suppression across multiple microphone channels before streaming over USB or Ethernet. The trade-off is that the on-chip DACs are 12-bit, so high-fidelity designs pair the MCU with an external 24-bit codec such as the SGTL5000 for the analog conversion stage.
Được đề xuất
Medical Instrumentation and Patient Monitoring
The STM32F437IIT6 is used in medical instrumentation because its three 12-bit ADCs with 24 channels digitize ECG, SpO2, and pressure signals, while the FPU executes digital filtering and QRS detection algorithms at 180 MHz. The true random number generator and hardware crypto support secure patient-data transmission, and the dual-bank Flash enables fail-safe firmware updates in certified devices. In a bedside monitor, the MCU acquires multiple physiological channels through DMA, applies bandpass filtering, and drives a display or Ethernet backhaul. The trade-off versus a lower-power Cortex-M0+ is higher current draw, so battery-powered monitors should duty-cycle the core or select an ultra-low-power STM32L variant instead.
Được đề xuất
IoT Gateways and Industrial Networking
The STM32F437IIT6 serves IoT gateways because it integrates an IEEE 1588-capable Ethernet MAC, USB OTG HS/FS, and multiple CAN and USART interfaces, allowing a single chip to bridge fieldbus, USB, and IP networks. The 2 MB Flash hosts TCP/IP stacks, TLS, and application logic, while the 256 KB SRAM buffers packets across interfaces. In a gateway design, the MCU runs an RTOS with lwIP, terminates Modbus or CANopen on the field side, and forwards data over Ethernet to a cloud broker. The trade-off is that the integrated MAC requires an external PHY and magnetics, adding BOM cost compared with modules that integrate the full physical layer.
Được đề xuất
Graphical User Interface and HMI Panels
The STM32F437IIT6 supports graphical user interfaces through its Chrom-ART Accelerator (DMA2D), which offloads pixel-format conversion, blending, and rectangle filling from the CPU, and its hardware JPEG codec, which decodes images without software overhead. The 2 MB Flash stores GUI assets and fonts, and the 140 I/O pins drive external display controllers or memory-mapped LCD interfaces. In an HMI panel, the MCU composites layered graphics into a frame buffer while the CPU services touch input and control logic. The trade-off versus the STM32F429 is the absence of an on-chip TFT-LCD controller, so designs needing a direct RGB display interface should select the STM32F429IIT6 instead.
Được đề xuất
Test and Measurement Instrumentation
The STM32F437IIT6 is used in test and measurement equipment because its 12-bit ADCs at 2.4 MSPS and dual 12-bit DACs enable signal generation and acquisition, while the FPU performs FFT and RMS calculations in real time. The 180 MHz core and 2 MB Flash support waveform storage and measurement algorithms, and the USB OTG HS interface streams data to a host PC at high speed. In a portable instrument, the MCU acquires a signal, computes spectral content, and renders results to a display or USB link. The trade-off is that 12-bit ADC resolution limits dynamic range, so precision instruments should pair the MCU with an external 16- or 24-bit ADC.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32F437IIT6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32F439IIT6 | STM32F427IIT6 | STM32F429IIT6 |
|---|---|---|---|---|
| Package | LQFP-176 (24x24) | LQFP-176 (24x24) - same | LQFP-176 (24x24) - same | LQFP-176 (24x24) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core / Frequency | ARM Cortex-M4, 180 MHz | ARM Cortex-M4, 180 MHz | ARM Cortex-M4, 180 MHz | ARM Cortex-M4, 180 MHz |
| Flash Memory | 2 MB dual-bank | 2 MB dual-bank | 2 MB dual-bank | 2 MB dual-bank |
| SRAM | 256 KB + 4 KB backup | 256 KB + 4 KB backup | 256 KB + 4 KB backup | 256 KB + 4 KB backup |
| Graphics Accelerator | Chrom-ART (DMA2D) + JPEG codec | Chrom-ART (DMA2D) + JPEG codec | None | Chrom-ART (DMA2D), no JPEG codec |
| LCD-TFT Controller | No | Yes | No | Yes |
| Crypto / RNG | RNG only | Crypto/hash processor + RNG | None | RNG only |
| Supply Voltage | 1.7 V to 3.6 V | 1.7 V to 3.6 V | 1.7 V to 3.6 V | 1.7 V to 3.6 V |
| GPIO Count | 140 | 140 | 140 | 140 |
Bảo phân biệt quan trọng
- Integrated Chrom-ART graphics accelerator and JPEG codec (vsSTM32F427IIT6)
- True random number generator for security functions (vsSTM32F427IIT6)
- Lower cost than the crypto-equipped STM32F439IIT6 (vsSTM32F439IIT6)
Ghi chú thiết kế
The STM32F437IIT6 requires 2.2 uF low-ESR ceramic capacitors on each VCAP pin (VCAP_1 and VCAP_2) to stabilize the internal 1.2 V core regulator. Place these capacitors within 5 mm of the pins and connect them to the nearest ground plane with short, wide traces. Do not connect any external load to the VCAP pins. Estimated: at 180 MHz run mode the core draws approximately 38 mA typical, so the regulator's decoupling must handle fast transient current steps during wake-from-sleep events.
Use a solid ground plane under the LQFP-176 package and provide at least one 100 nF decoupling capacitor per VDD pin pair, plus a bulk 10 uF capacitor near the package corner. Route the high-speed USB OTG HS differential pair as 90 ohm impedance-controlled traces and keep them away from the ADC reference pins. The 24x24 mm body requires careful thermal relief on the ground pads to avoid tombstoning during reflow.
Do not leave the BOOT0 pin floating; tie it to ground through a 10 kOhm resistor for normal Flash boot. The NRST pin has an internal pull-up but adding an external 100 nF capacitor improves noise immunity. When using the ADC, keep VREF+ decoupled with a 1 uF plus 10 nF capacitor and avoid routing digital signals beneath the analog supply pins. Estimated: ADC accuracy degrades by roughly 1 LSB for every 10 mV of noise on VREF+.
Thông tin tuân thủ
RoHS and REACH compliance per STMicroelectronics product page. Not AEC-Q100 qualified; automotive designs should select an STM32F4 automotive-grade variant.
