STM32F437IIT6 - 180MHz 2MB Flash ARM Cortex-M4 MCU | STMicroelectronics
部品番号: STM32F437IIT6 ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.65 | $166.50 |
| 100 | $14.8 | $1,480.00 |
| 500 | $13.32 | $6,660.00 |
| 1,000 | $11.84 | $11,840.00 |
STM32F437IIT6 概要
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.
ドロップイン代替品: STM32F437IIT6 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: STM32F437IIT6 （同一形状・フットプリント） — 相違点: Package, SRAM, Flash Memory, Mounting Type, ADC.
クイック比較ツール — 並列比較する代替部品を選択:
STM32F439IIT6
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STM32F427IIT6
✅ ドロップイン✓ 在庫あり
$11.2 / 個
データシートを見る →STM32F429IIT6
✅ ドロップイン✓ 在庫あり
$8.3523 / 個
データシートを見る →STM32F437IIH6
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$10.6 / 個
データシートを見る →STM32F437IIT7
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STM32F437IIT6 最大定格＆電気的特性
| 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 |
| 動作温度 | -40 C to +85 C |
| パッケージ | 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 |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
STM32F437IIT6 ピン構成
| ピン 1 | PE2 — GPIO port E bit 2 |
| ピン 2 | PE3 — GPIO port E bit 3 |
| ピン 3 | PE4 — GPIO port E bit 4 |
| ピン 4 | PE5 — GPIO port E bit 5 |
| ピン 5 | PE6 — GPIO port E bit 6 |
| ピン 6 | VBAT — Backup domain supply voltage |
| ピン 7 | PC13 — GPIO port C bit 13 |
| ピン 8 | PC14-OSC32_IN — GPIO / 32.768 kHz oscillator input |
| ピン 9 | PC15-OSC32_OUT — GPIO / 32.768 kHz oscillator output |
| ピン 10 | PF0 — GPIO port F bit 0 |
| ピン 11 | PF1 — GPIO port F bit 1 |
| ピン 12 | PF2 — GPIO port F bit 2 |
| ピン 13 | PF3 — GPIO port F bit 3 |
| ピン 14 | PF4 — GPIO port F bit 4 |
| ピン 15 | PF5 — GPIO port F bit 5 |
| ピン 16 | VSS — Ground |
| ピン 17 | VDD — Digital supply voltage |
| ピン 18 | PF6 — GPIO port F bit 6 |
| ピン 19 | PF7 — GPIO port F bit 7 |
| ピン 20 | PF8 — GPIO port F bit 8 |
| ピン 21 | PF9 — GPIO port F bit 9 |
| ピン 22 | PF10 — GPIO port F bit 10 |
| ピン 23 | PH0-OSC_IN — GPIO / HSE oscillator input |
| ピン 24 | PH1-OSC_OUT — GPIO / HSE oscillator output |
| ピン 25 | NRST — Reset input (active low) |
| ピン 26 | PC0 — GPIO port C bit 0 |
| ピン 27 | PC1 — GPIO port C bit 1 |
| ピン 28 | PC2 — GPIO port C bit 2 |
| ピン 29 | PC3 — GPIO port C bit 3 |
| ピン 30 | VDD — Digital supply voltage |
| ピン 31 | VSSA — Analog ground |
| ピン 32 | VREF+ — ADC/DAC reference voltage |
| ピン 33 | VDDA — Analog supply voltage |
| ピン 34 | PA0-WKUP — GPIO / wakeup pin |
| ピン 35 | PA1 — GPIO port A bit 1 |
| ピン 36 | PA2 — GPIO port A bit 2 |
| ピン 37 | PA3 — GPIO port A bit 3 |
| ピン 38 | VSS — Ground |
| ピン 39 | VDD — Digital supply voltage |
| ピン 40 | PA4 — GPIO port A bit 4 |
| ピン 41 | PA5 — GPIO port A bit 5 |
| ピン 42 | PA6 — GPIO port A bit 6 |
| ピン 43 | PA7 — GPIO port A bit 7 |
| ピン 44 | PC4 — GPIO port C bit 4 |
| ピン 45 | PC5 — GPIO port C bit 5 |
| ピン 46 | PB0 — GPIO port B bit 0 |
| ピン 47 | PB1 — GPIO port B bit 1 |
| ピン 48 | PB2 — GPIO port B bit 2 |
| ピン 49 | PF11 — GPIO port F bit 11 |
| ピン 50 | PF12 — GPIO port F bit 12 |
| ピン 51 | VSS — Ground |
| ピン 52 | VDD — Digital supply voltage |
| ピン 53 | PF13 — GPIO port F bit 13 |
| ピン 54 | PF14 — GPIO port F bit 14 |
| ピン 55 | PF15 — GPIO port F bit 15 |
| ピン 56 | PG0 — GPIO port G bit 0 |
| ピン 57 | PG1 — GPIO port G bit 1 |
| ピン 58 | PE7 — GPIO port E bit 7 |
| ピン 59 | PE8 — GPIO port E bit 8 |
| ピン 60 | PE9 — GPIO port E bit 9 |
| ピン 61 | VSS — Ground |
| ピン 62 | VDD — Digital supply voltage |
| ピン 63 | PE10 — GPIO port E bit 10 |
| ピン 64 | PE11 — GPIO port E bit 11 |
| ピン 65 | PE12 — GPIO port E bit 12 |
| ピン 66 | PE13 — GPIO port E bit 13 |
| ピン 67 | PE14 — GPIO port E bit 14 |
| ピン 68 | PE15 — GPIO port E bit 15 |
| ピン 69 | PB10 — GPIO port B bit 10 |
| ピン 70 | PB11 — GPIO port B bit 11 |
| ピン 71 | VCAP_1 — Core regulator decoupling capacitor |
| ピン 72 | VDD — Digital supply voltage |
| ピン 73 | PB12 — GPIO port B bit 12 |
| ピン 74 | PB13 — GPIO port B bit 13 |
| ピン 75 | PB14 — GPIO port B bit 14 |
| ピン 76 | PB15 — GPIO port B bit 15 |
| ピン 77 | PD8 — GPIO port D bit 8 |
| ピン 78 | PD9 — GPIO port D bit 9 |
| ピン 79 | PD10 — GPIO port D bit 10 |
| ピン 80 | PD11 — GPIO port D bit 11 |
| ピン 81 | PD12 — GPIO port D bit 12 |
| ピン 82 | PD13 — GPIO port D bit 13 |
| ピン 83 | PD14 — GPIO port D bit 14 |
| ピン 84 | PD15 — GPIO port D bit 15 |
| ピン 85 | PG2 — GPIO port G bit 2 |
| ピン 86 | PG3 — GPIO port G bit 3 |
| ピン 87 | PG4 — GPIO port G bit 4 |
| ピン 88 | PG5 — GPIO port G bit 5 |
| ピン 89 | PG6 — GPIO port G bit 6 |
| ピン 90 | PG7 — GPIO port G bit 7 |
| ピン 91 | PG8 — GPIO port G bit 8 |
| ピン 92 | VSS — Ground |
| ピン 93 | VDD — Digital supply voltage |
| ピン 94 | PC6 — GPIO port C bit 6 |
| ピン 95 | PC7 — GPIO port C bit 7 |
| ピン 96 | PC8 — GPIO port C bit 8 |
| ピン 97 | PC9 — GPIO port C bit 9 |
| ピン 98 | PA8 — GPIO port A bit 8 |
| ピン 99 | PA9 — GPIO port A bit 9 |
| ピン 100 | PA10 — GPIO port A bit 10 |
| ピン 101 | PA11 — GPIO port A bit 11 |
| ピン 102 | PA12 — GPIO port A bit 12 |
| ピン 103 | PA13 — GPIO port A bit 13 |
| ピン 104 | VCAP_2 — Core regulator decoupling capacitor |
| ピン 105 | VSS — Ground |
| ピン 106 | VDD — Digital supply voltage |
| ピン 107 | PA14 — GPIO port A bit 14 |
| ピン 108 | PA15 — GPIO port A bit 15 |
| ピン 109 | PC10 — GPIO port C bit 10 |
| ピン 110 | PC11 — GPIO port C bit 11 |
| ピン 111 | PC12 — GPIO port C bit 12 |
| ピン 112 | PD0 — GPIO port D bit 0 |
| ピン 113 | PD1 — GPIO port D bit 1 |
| ピン 114 | PD2 — GPIO port D bit 2 |
| ピン 115 | PD3 — GPIO port D bit 3 |
| ピン 116 | PD4 — GPIO port D bit 4 |
| ピン 117 | PD5 — GPIO port D bit 5 |
| ピン 118 | VSS — Ground |
| ピン 119 | VDD — Digital supply voltage |
| ピン 120 | PD6 — GPIO port D bit 6 |
| ピン 121 | PD7 — GPIO port D bit 7 |
| ピン 122 | PG9 — GPIO port G bit 9 |
| ピン 123 | PG10 — GPIO port G bit 10 |
| ピン 124 | PG11 — GPIO port G bit 11 |
| ピン 125 | PG12 — GPIO port G bit 12 |
| ピン 126 | PG13 — GPIO port G bit 13 |
| ピン 127 | PG14 — GPIO port G bit 14 |
| ピン 128 | VSS — Ground |
| ピン 129 | VDD — Digital supply voltage |
| ピン 130 | PG15 — GPIO port G bit 15 |
| ピン 131 | PB3 — GPIO port B bit 3 |
| ピン 132 | PB4 — GPIO port B bit 4 |
| ピン 133 | PB5 — GPIO port B bit 5 |
| ピン 134 | PB6 — GPIO port B bit 6 |
| ピン 135 | PB7 — GPIO port B bit 7 |
| ピン 136 | BOOT0 — Boot mode selection input |
| ピン 137 | PB8 — GPIO port B bit 8 |
| ピン 138 | PB9 — GPIO port B bit 9 |
| ピン 139 | PE0 — GPIO port E bit 0 |
| ピン 140 | PE1 — GPIO port E bit 1 |
| ピン 141 | VSS — Ground |
| ピン 142 | VDD — Digital supply voltage |
| ピン 143 | PF11 — GPIO port F bit 11 (alternate function) |
| ピン 144 | PF12 — GPIO port F bit 12 (alternate function) |
| ピン 145 | PF13 — GPIO port F bit 13 (alternate function) |
| ピン 146 | PF14 — GPIO port F bit 14 (alternate function) |
| ピン 147 | PF15 — GPIO port F bit 15 (alternate function) |
| ピン 148 | PG0 — GPIO port G bit 0 (alternate function) |
| ピン 149 | PG1 — GPIO port G bit 1 (alternate function) |
| ピン 150 | VSS — Ground |
| ピン 151 | VDD — Digital supply voltage |
| ピン 152 | PG2 — GPIO port G bit 2 (alternate function) |
| ピン 153 | PG3 — GPIO port G bit 3 (alternate function) |
| ピン 154 | PG4 — GPIO port G bit 4 (alternate function) |
| ピン 155 | PG5 — GPIO port G bit 5 (alternate function) |
| ピン 156 | PG6 — GPIO port G bit 6 (alternate function) |
| ピン 157 | PG7 — GPIO port G bit 7 (alternate function) |
| ピン 158 | PG8 — GPIO port G bit 8 (alternate function) |
| ピン 159 | VSS — Ground |
| ピン 160 | VDD — Digital supply voltage |
| ピン 161 | PC6 — GPIO port C bit 6 (alternate function) |
| ピン 162 | PC7 — GPIO port C bit 7 (alternate function) |
| ピン 163 | PC8 — GPIO port C bit 8 (alternate function) |
| ピン 164 | PC9 — GPIO port C bit 9 (alternate function) |
| ピン 165 | PA8 — GPIO port A bit 8 (alternate function) |
| ピン 166 | PA9 — GPIO port A bit 9 (alternate function) |
| ピン 167 | PA10 — GPIO port A bit 10 (alternate function) |
| ピン 168 | PA11 — GPIO port A bit 11 (alternate function) |
| ピン 169 | PA12 — GPIO port A bit 12 (alternate function) |
| ピン 170 | PA13 — GPIO port A bit 13 (alternate function) |
| ピン 171 | VSS — Ground |
| ピン 172 | VDD — Digital supply voltage |
| ピン 173 | PA14 — GPIO port A bit 14 (alternate function) |
| ピン 174 | PA15 — GPIO port A bit 15 (alternate function) |
| ピン 175 | PC10 — GPIO port C bit 10 (alternate function) |
| ピン 176 | PC11 — GPIO port C bit 11 (alternate function) |
主な用途
STM32F437IIT6 の用途: 6 件s: 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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
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.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STM32F437IIT6 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | 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 |
主な差別化要因
- Integrated Chrom-ART graphics accelerator and JPEG codec （vs STM32F427IIT6)
- True random number generator for security functions （vs STM32F427IIT6)
- Lower cost than the crypto-equipped STM32F439IIT6 （vs STM32F439IIT6)
設計ノート
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+.
コンプライアンス情報
RoHS and REACH compliance per STMicroelectronics product page. Not AEC-Q100 qualified; automotive designs should select an STM32F4 automotive-grade variant.
