STM32F439IGT6 - 180MHz ARM MCU 1MB Flash LQFP-176 | STMicroelectronics
MPN: STM32F439IGT6 ✓ Hoạt độngSTM32F439IGT6 Tóm tắt
An ARM Cortex-M4 microcontroller is a 32-bit RISC processor core designed by ARM for embedded applications, featuring built-in single-precision floating-point unit (FPU), DSP extensions, and optional memory protection unit (MPU). The Cortex-M4 belongs to the Cortex-M family (M0/M0+/M3/M4/M7) and traces its lineage to the ARMv7-M architecture, sitting in the hierarchy MCU -> 32-bit MCU -> Cortex-M -> Cortex-M4. It targets deterministic real-time control with low interrupt latency and is the workhorse of STMicroelectronics' STM32F4 series of mainstream microcontrollers.
Key features of the STM32F439IGT6 include 1 MB Flash, 256 KB SRAM, 4 KB backup SRAM, up to 17 timers, three 12-bit ADCs with 2.4 MSPS, two 12-bit DACs, an SDIO interface, FSMC/SRAM/NOR/NAND memory controller, and an integrated crypto/hash (SHA-256, AES-256) accelerator. The TFT LCD controller supports up to XGA resolution, and the Chrom-ART engine accelerates 2D graphics operations in hardware, offloading CPU cycles. The device operates from 1.8-3.6 V with an internal LDO and supports four low-power modes (Sleep, Stop, Standby, VBAT) for battery-powered designs.
Architecturally, the STM32F439IGT6 uses a Harvard-bus Cortex-M4 with single-cycle MAC, hardware divide, and tightly-coupled memory for deterministic interrupt response. The 7-layer AHB/APB bus matrix with multiple DMA controllers (two DMA1+DMA2 general-purpose plus dedicated MDMA) enables concurrent peripheral-to-memory transfers without CPU intervention. Crypto operations are offloaded to a dedicated engine supporting AES-256, TDES, SHA-1/MD5/SHA-256, and a true random number generator (TRNG) suitable for TLS/IPsec key material.
Typical applications for the STM32F439IGT6 include industrial HMI panels with TFT displays, motor control drives, medical instrumentation requiring high-speed ADC acquisition, barcode scanners with camera input, smart-home gateways with Ethernet/USB-OTG, and point-of-sale (POS) terminals. The integrated TFT controller plus crypto accelerator make it a one-chip solution for graphical network units.
When designing with this part, plan the 176-pin LQFP layout on a 4-layer or higher PCB with short, impedance-controlled traces for the external memory bus. The 24x24 mm body requires clearance for the 0.5 mm pitch pads; reflow profile must follow JEDEC J-STD-020 MSL-3 handling. Ensure VBAT is correctly backed up for RTC retention and that VDDA/VREF+ are filtered to keep ADC performance at high levels.
This page consolidates distributor pricing, drop-in same-package cross-references, and practical layout/thermal guidance not always presented together in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho STM32F439IGT6 — 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 STM32F439IGT6 (cùng hình factor và footprint) — khác nhau ở Package, Timers, SRAM, Communication Interfaces, ADC.
STM32F437IIT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F429VGT6TR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F427VGT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F429VET6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F427IIT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32F439IGT6 Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M4 with FPU and DSP instructions |
| Tần số xung maksimum | 180 MHz |
| DMIPS | 225 DMIPS / 1.25 DMIPS/MHz |
| Program Memory (Flash) | 1 MB (1M x 8) |
| SRAM | 256 KB |
| Backup SRAM | 4 KB |
| Operating Voltage (VDD) | 1.8 V to 3.6 V |
| Nhiệt độ hoạt động | -40 C to +85 C |
| Hộp | 176-LQFP (24 x 24 mm) |
| ADC | 3 x 12-bit, up to 2.4 MSPS |
| DAC | 2 x 12-bit |
| Timers | Up to 17 (general-purpose, advanced-control, basic, low-power, SysTick, watchdog) |
| Communication Interfaces | USB 2.0 OTG FS+HS, CAN 2.0B (bxCAN x2), USART/UART x6, SPI x3, I2C x3, Ethernet MAC 10/100, SDIO x2 |
| Graphics Peripherals | TFT LCD controller (up to XGA), Chrom-ART Accelerator, 8-14-bit camera I/F |
| External Memory Controller | FSMC for SRAM/PSDRAM/NOR/NAND/Compact Flash |
| Crypto / Hash Accelerator | AES-256, TDES, SHA-1/MD5/SHA-256, TRNG |
| Số chân | 176 |
| Pitch | 0.5 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32F439IGT6
| Chân 1 | PE02 — GPIO PE2, alt-function TRACECLK |
| Chân 2 | PE03 — GPIO PE3, alt-function TRACED0 |
| Chân 3 | PE04 — GPIO PE4, alt-function TRACED1 |
| Chân 4 | PE05 — GPIO PE5, alt-function TRACED2 |
| Chân 5 | PE06 — GPIO PE6, alt-function TRACED3 |
| Chân 6 | VBAT — RTC backup supply |
| Chân 7 | PC13 — GPIO PC13, RTC TAMPER |
| Chân 8 | PC14 — GPIO PC14, OSC32_IN |
| Chân 9 | PC15 — GPIO PC15, OSC32_OUT |
| Chân 10 | VREF+ — ADC reference voltage |
| Chân 11 | VDDA — Analog supply |
| Chân 12 | PA00 — GPIO PA0, WKUP, ADC_IN0, TIM2_CH1 |
| Chân 13 | PA01 — GPIO PA1, ADC_IN1, TIM2_CH2 |
| Chân 14 | PA02 — GPIO PA2, ADC_IN2, TIM2_CH3 |
| Chân 15 | PA03 — GPIO PA3, ADC_IN3, TIM2_CH4 |
| Chân 16 | VSSA — Analog ground |
| Chân 17 | VDD — Digital supply |
| Chân 18 | PA04 — GPIO PA4, ADC_IN4, DAC_OUT1 |
| Chân 19 | PA05 — GPIO PA5, ADC_IN5, DAC_OUT2 |
| Chân 20 | PA06 — GPIO PA6, ADC_IN6, TIM3_CH1 |
| Chân 21 | PA07 — GPIO PA7, ADC_IN7, TIM3_CH2 |
| Chân 22 | PC04 — GPIO PC4, ADC_IN14 |
| Chân 23 | PC05 — GPIO PC5, ADC_IN15 |
| Chân 24 | PB00 — GPIO PB0, ADC_IN8, TIM3_CH3 |
| Chân 25 | PB01 — GPIO PB1, ADC_IN9, TIM3_CH4 |
| Chân 26 | PB02 — GPIO PB2, BOOT1 |
| Chân 27 | PB10 — GPIO PB10, I2C2_SCL, USART3_TX |
| Chân 28 | PB11 — GPIO PB11, I2C2_SDA, USART3_RX |
| Chân 29 | VCAP_1 — Internal regulator capacitor |
| Chân 30 | VSS — Digital ground |
| Chân 31 | VDD — Digital supply |
| Chân 32 | PB12 — GPIO PB12, SPI2_NSS, I2S2_WS |
| Chân 33 | PB13 — GPIO PB13, SPI2_SCK, I2S2_CK |
| Chân 34 | PB14 — GPIO PB14, SPI2_MISO, TIM12_CH1 |
| Chân 35 | PB15 — GPIO PB15, SPI2_MOSI, I2S2_SD |
| Chân 36 | PC06 — GPIO PC6, TIM3_CH1, USART6_TX |
| Chân 37 | PC07 — GPIO PC7, TIM3_CH2, USART6_RX |
| Chân 38 | PC08 — GPIO PC8, TIM3_CH3, SDIO_D0 |
| Chân 39 | PC09 — GPIO PC9, TIM3_CH4, SDIO_D1 |
| Chân 40 | PA08 — GPIO PA8, TIM1_CH1, USART1_CK, MCO1 |
| Chân 41 | PA09 — GPIO PA9, USART1_TX, TIM1_CH2 |
| Chân 42 | PA10 — GPIO PA10, USART1_RX, TIM1_CH3 |
| Chân 43 | PA11 — GPIO PA11, USB_DM, CAN1_RX |
| Chân 44 | PA12 — GPIO PA12, USB_DP, CAN1_TX |
| Chân 45 | PA13 — GPIO PA13, JTMS-SWDIO |
| Chân 46 | VCAP_2 — Internal regulator capacitor |
| Chân 47 | VSS — Digital ground |
| Chân 48 | VDD — Digital supply |
| Chân 49 | PA14 — GPIO PA14, JTCK-SWCLK |
| Chân 50 | PA15 — GPIO PA15, JTDI, SPI1_NSS, TIM2_CH1 |
| Chân 51 | PC10 — GPIO PC10, UART4_TX, SDIO_D2 |
| Chân 52 | PC11 — GPIO PC11, UART4_RX, SDIO_D3 |
| Chân 53 | PC12 — GPIO PC12, UART5_TX, SDIO_CK |
| Chân 54 | PD00 — GPIO PD0, FSMC_D2, CAN1_RX |
| Chân 55 | PD01 — GPIO PD1, FSMC_D3, CAN1_TX |
| Chân 56 | PD02 — GPIO PD2, TIM3_ETR, UART5_RX, SDIO_CMD |
| Chân 57 | PD03 — GPIO PD3, FSMC_CLK |
| Chân 58 | PD04 — GPIO PD4, FSMC_NOE |
| Chân 59 | PD05 — GPIO PD5, FSMC_NWE |
| Chân 60 | VSS — Digital ground |
| Chân 61 | VDD — Digital supply |
| Chân 62 | PD06 — GPIO PD6, FSMC_NWAIT |
| Chân 63 | PD07 — GPIO PD7, FSMC_NE1, USART2_CK |
| Chân 64 | PG09 — GPIO PG9, FSMC_NE2 |
| Chân 65 | PG10 — GPIO PG10, FSMC_NE3 |
| Chân 66 | PG11 — GPIO PG11, FSMC_NE4 |
| Chân 67 | PG12 — GPIO PG12, FSMC_NE5 |
| Chân 68 | PG13 — GPIO PG13, FSMC_A24 |
| Chân 69 | PG14 — GPIO PG14, FSMC_A25 |
| Chân 70 | VSS — Digital ground |
| Chân 71 | VDD — Digital supply |
| Chân 72 | PG15 — GPIO PG15 |
| Chân 73 | PB03 — GPIO PB3, JTDO-SWO, SPI1_SCK, TIM2_CH2 |
| Chân 74 | PB04 — GPIO PB4, NJTRST, SPI1_MISO, TIM3_CH1 |
| Chân 75 | PB05 — GPIO PB5, I2C1_SMBAI, SPI1_MOSI, TIM3_CH2 |
| Chân 76 | PB06 — GPIO PB6, I2C1_SCL, TIM4_CH1, USART1_TX |
| Chân 77 | PB07 — GPIO PB7, I2C1_SDA, TIM4_CH2, USART1_RX |
| Chân 78 | BOOT0 — Boot mode select |
| Chân 79 | PB08 — GPIO PB8, TIM4_CH3, I2C1_SCL, CAN1_RX |
| Chân 80 | PB09 — GPIO PB9, TIM4_CH4, I2C1_SDA, CAN1_TX |
| Chân 81 | PE00 — GPIO PE0, TIM4_ETR |
| Chân 82 | PE01 — GPIO PE1 |
| Chân 83 | VSS — Digital ground |
| Chân 84 | VDD — Digital supply |
| Chân 85 | PI10 — GPIO PI10, FSMC_NIORD |
| Chân 86 | PI11 — GPIO PI11, FSMC_NIOWR |
| Chân 87 | VSS — Digital ground |
| Chân 88 | VDD — Digital supply |
| Chân 89 | PI12 — GPIO PI12, FSMC_D[20] |
| Chân 90 | PI13 — GPIO PI13, FSMC_D[21] |
| Chân 91 | PI14 — GPIO PI14, FSMC_D[22] |
| Chân 92 | PI15 — GPIO PI15, FSMC_D[23] |
| Chân 93 | VSS — Digital ground |
| Chân 94 | VDD — Digital supply |
| Chân 95 | PG00 — GPIO PG0, FSMC_A10 |
| Chân 96 | PG01 — GPIO PG1, FSMC_A11 |
| Chân 97 | PE07 — GPIO PE7, TIM1_ETR, FSMC_D4 |
| Chân 98 | PE08 — GPIO PE8, TIM1_CH1N, FSMC_D5 |
| Chân 99 | PE09 — GPIO PE9, TIM1_CH1, FSMC_D6 |
| Chân 100 | VSS — Digital ground |
| Chân 101 | VDD — Digital supply |
| Chân 102 | PE10 — GPIO PE10, TIM1_CH2N, FSMC_D7 |
| Chân 103 | PE11 — GPIO PE11, TIM1_CH2, FSMC_D8 |
| Chân 104 | PE12 — GPIO PE12, TIM1_CH3N, FSMC_D9 |
| Chân 105 | PE13 — GPIO PE13, TIM1_CH3, FSMC_D10 |
| Chân 106 | PE14 — GPIO PE14, TIM1_CH4, FSMC_D11 |
| Chân 107 | PE15 — GPIO PE15, TIM1_BKIN, FSMC_D12 |
| Chân 108 | PB10 — GPIO PB10 |
| Chân 109 | PB11 — GPIO PB11 |
| Chân 110 | VCAP_1 — Internal regulator capacitor |
| Chân 111 | VSS — Digital ground |
| Chân 112 | VDD — Digital supply |
| Chân 113 | PB12 — GPIO PB12 |
| Chân 114 | PB13 — GPIO PB13 |
| Chân 115 | PB14 — GPIO PB14 |
| Chân 116 | PB15 — GPIO PB15 |
| Chân 117 | PD08 — GPIO PD8, FSMC_D13, USART3_TX |
| Chân 118 | PD09 — GPIO PD9, FSMC_D14, USART3_RX |
| Chân 119 | PD10 — GPIO PD10, FSMC_D15 |
| Chân 120 | PD11 — GPIO PD11, FSMC_A16, USART3_CTS |
| Chân 121 | PD12 — GPIO PD12, FSMC_A17, TIM4_CH1 |
| Chân 122 | VSS — Digital ground |
| Chân 123 | VDD — Digital supply |
| Chân 124 | PD13 — GPIO PD13, FSMC_A18, TIM4_CH2 |
| Chân 125 | PD14 — GPIO PD14, FSMC_D0, TIM4_CH3 |
| Chân 126 | PD15 — GPIO PD15, FSMC_D1, TIM4_CH4 |
| Chân 127 | PG02 — GPIO PG2, FSMC_A12 |
| Chân 128 | PG03 — GPIO PG3, FSMC_A13 |
| Chân 129 | PG04 — GPIO PG4, FSMC_A14 |
| Chân 130 | PG05 — GPIO PG5, FSMC_A15 |
| Chân 131 | PG06 — GPIO PG6, FSMC_INT2 |
| Chân 132 | PG07 — GPIO PG7, FSMC_INT3, USART6_CK |
| Chân 133 | PG08 — GPIO PG8, FSMC_CLK, USART6_RTS |
| Chân 134 | VSS — Digital ground |
| Chân 135 | VDD — Digital supply |
| Chân 136 | PC06 — GPIO PC6 |
| Chân 137 | PC07 — GPIO PC7 |
| Chân 138 | PC08 — GPIO PC8 |
| Chân 139 | PC09 — GPIO PC9 |
| Chân 140 | PA08 — GPIO PA8 |
| Chân 141 | PA09 — GPIO PA9 |
| Chân 142 | PA10 — GPIO PA10 |
| Chân 143 | PA11 — GPIO PA11 |
| Chân 144 | PA12 — GPIO PA12 |
| Chân 145 | PA13 — GPIO PA13 |
| Chân 146 | VCAP_2 — Internal regulator capacitor |
| Chân 147 | VSS — Digital ground |
| Chân 148 | VDD — Digital supply |
| Chân 149 | PA14 — GPIO PA14 |
| Chân 150 | PA15 — GPIO PA15 |
| Chân 151 | PC10 — GPIO PC10 |
| Chân 152 | PC11 — GPIO PC11 |
| Chân 153 | PC12 — GPIO PC12 |
| Chân 154 | PD00 — GPIO PD0 |
| Chân 155 | PD01 — GPIO PD1 |
| Chân 156 | PD02 — GPIO PD2 |
| Chân 157 | PD03 — GPIO PD3 |
| Chân 158 | PD04 — GPIO PD4 |
| Chân 159 | PD05 — GPIO PD5 |
| Chân 160 | VSS — Digital ground |
| Chân 161 | VDD — Digital supply |
| Chân 162 | PD06 — GPIO PD6 |
| Chân 163 | PD07 — GPIO PD7 |
| Chân 164 | PG09 — GPIO PG9 |
| Chân 165 | PG10 — GPIO PG10 |
| Chân 166 | PG11 — GPIO PG11 |
| Chân 167 | PG12 — GPIO PG12 |
| Chân 168 | PG13 — GPIO PG13 |
| Chân 169 | PG14 — GPIO PG14 |
| Chân 170 | VSS — Digital ground |
| Chân 171 | VDD — Digital supply |
| Chân 172 | PG15 — GPIO PG15 |
| Chân 173 | PB03 — GPIO PB3 |
| Chân 174 | PB04 — GPIO PB4 |
| Chân 175 | PB05 — GPIO PB5 |
| Chân 176 | PB07 — GPIO PB7 |
Ứng dụng tiêu biểu
STM32F439IGT6 phù hợp cho 7 Áp dụngs: Industrial HMI with TFT Display, Secure Connected Gateway with Ethernet/USB-OTG, Motor Control and Field-Oriented Control (FOC) Drives, Medical Instrumentation and Diagnostic Devices, Barcode Scanner with Camera Interface, Point-of-Sale (POS) Terminal, Smart-Home Controller and Hub.
Industrial HMI with TFT Display
The STM32F439IGT6 drives industrial HMI panels via its integrated TFT LCD controller (up to XGA) and Chrom-ART 2D graphics accelerator, offloading pixel-format conversion and rectangle fills from the CPU. The 1 MB Flash holds LVGL/Embedded Wizard assets while 256 KB SRAM keeps frame buffers resident; external SDRAM is added via FSMC for larger panels. The Cortex-M4F at 180 MHz sustains 60 fps LVGL refresh with headroom, hardware support for ARGB8888 and RGB565 LCDs, and GPIO/FSMC pin count matches typical 480x272/1024x768 HMI hardware. Pair with XPT2046 touch controller over SPI.
Được đề xuất
Secure Connected Gateway with Ethernet/USB-OTG
The STM32F439IGT6 integrates a 10/100 Ethernet MAC with RMII/MII PHY interface and USB 2.0 OTG Full-Speed plus High-Speed (with external ULPI PHY), enabling a single-chip secure IoT gateway. The hardware crypto/hash accelerator (AES-256, SHA-256, TRNG) accelerates TLS/IPsec handshakes and key generation; backup SRAM retains security keys across power cycles. 1 MB Flash is sufficient for an LwIP+TLS stack; 256 KB SRAM supports TCP/IP socket buffers; multiple USART/SPI/I2C connect sensors. The 176-LQFP body provides sufficient GPIO for PHY reset, USB VBUS detect, and indicator LEDs.
Được đề xuất
Motor Control and Field-Oriented Control (FOC) Drives
The STM32F439IGT6's 180 MHz Cortex-M4F executes complex FOC algorithms in real time with single-cycle MAC, the 17 timers deliver 6-step PWM plus ADC synchronization for 3-phase motor control, and 12-bit ADC sampling at 2.4 MSPS captures phase currents with sub-microsecond latency. The hardware divide instruction accelerates Park/Clarke transformations. 1 MB Flash holds full state-machine code plus SFOC tables; 256 KB SRAM supports sliding-window observers. The LQFP-176 footprint exposes ample GPIO for encoder inputs and resolver excitation. Typical applications: BLDC pumps, servo drives, robotic joints.
Được đề xuất
Medical Instrumentation and Diagnostic Devices
The STM32F439IGT6's three independent 12-bit ADCs at 2.4 MSPS capture multiple bio-signal channels simultaneously (ECG, SpO2, temperature) with synchronized sampling and DMA. The TFT LCD controller drives bedside-monitor displays, Chrom-ART accelerates real-time waveform rendering, and the USB-OTG HS supports high-speed data upload to host software. The Cortex-M4F runs DSP-style filtering (FFT, RMS, RMS smoothing) in firmware; hardware crypto can secure patient data records. The 176-LQFP package is suitable for the 4-layer PCBs typical of IEC 60601-compliant medical devices.
Được đề xuất
Barcode Scanner with Camera Interface
The STM32F439IGT6 integrates an 8-14-bit parallel camera interface that directly accepts image sensor data, an FSMC that maps external SRAM as frame buffer, and Chrom-ART that accelerates pre-processing such as RGB->grayscale conversion. The Cortex-M4F at 180 MHz decodes 1D/2D barcodes in firmware using the captured frame; the 1 MB Flash holds the decoder libraries and the 256 KB SRAM supports multiple decoded payloads. A USB-OTG HS port connects to a host PC for instant plug-in barcode scanner use. The TFT controller is repurposed for the menu/result UI.
Được đề xuất
Point-of-Sale (POS) Terminal
The STM32F439IGT6's hardware crypto accelerator and TRNG enable PCI-style secure transactions without external secure MCU; the Ethernet MAC plus USB-OTG HS support both IP-based and USB-connected POS architectures. The TFT LCD controller drives the customer display while 1 MB Flash holds the firmware, payment libraries, and UI assets; the SDIO interface connects to a microSD slot for transaction logs. The 176-LQFP package exposes GPIO for keypad scanning, printer control, and contactless card readers. The Cortex-M4F handles UI rendering and security handshakes concurrently.
Được đề xuất
Smart-Home Controller and Hub
The STM32F439IGT6's Ethernet MAC plus USB-OTG plus dual CAN interfaces make it a versatile smart-home hub connecting wired fieldbus devices (CAN, RS-485) with IP backhaul. The TFT LCD controller drives a wall-mounted touchscreen; Chrom-ART accelerates smooth UI transitions; the crypto engine secures MQTT-TLS connections to cloud services. The 1 MB Flash is sufficient for the gateway firmware and UI assets, while 256 KB SRAM holds MQTT and TLS socket buffers. Backup SRAM retains device pairing tables across power cycles.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32F439IGT6 — 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 | STM32F437IIT6 | STM32F429VGT6 | STM32F427VGT6 | STM32F429VET6 | STM32F427IIT6 |
|---|---|---|---|---|---|---|
| Package | LQFP-176 (24x24 mm) | LQFP-176 (24x24 mm) - same | LQFP-176 (24x24 mm) - same | LQFP-176 (24x24 mm) - same | LQFP-176 (24x24 mm) - same | LQFP-176 (24x24 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Core | ARM Cortex-M4F 180 MHz | ARM Cortex-M4F 180 MHz | ARM Cortex-M4F 180 MHz | ARM Cortex-M4F 180 MHz | ARM Cortex-M4F 180 MHz | ARM Cortex-M4F 180 MHz |
| Flash | 1 MB | 2 MB | 1 MB | 1 MB | 2 MB | 2 MB |
| SRAM | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| TFT LCD Controller | Yes (XGA) | Yes (XGA) | Yes (XGA) | No | Yes (XGA) | No |
| Crypto/Hash Engine | AES-256, SHA-256, TRNG | AES-256, SHA-256, TRNG | No | No | No | No |
| Ethernet MAC | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) | Yes (10/100) |
| USB OTG | FS + HS (with PHY) | FS + HS (with PHY) | FS + HS (with PHY) | FS + HS (with PHY) | FS + HS (with PHY) | FS + HS (with PHY) |
| Approx. Unit Price (1 pc) | 12.75 USD | Higher (2 MB Flash) | Lower (no crypto engine) | Lower (no crypto, no LCD) | Higher (2 MB Flash, no crypto) | Higher (2 MB Flash, no crypto, no LCD) |
Bảo phân biệt quan trọng
- Integrated hardware crypto/hash engine (vsSTM32F429VGT6)
- Highest-density F4 in mainstream line (vsSTM32F429VGT6)
- 1 MB Flash at lower cost vs 2 MB F427/F437 (vsSTM32F437IIT6)
Ghi chú thiết kế
The STM32F439IGT6 has separate VDD/VDDA/VBAT/VCAP rails. Place 100 nF decoupling capacitors within 2-3 mm of each VDD pin, and bulk 4.7 uF capacitors on each major rail. Connect VCAP_1 and VCAP_2 to 2.2 uF X5R capacitors; missing these caps causes the internal LDO to oscillate and the core to brown out at high frequency. VDDA must be tied to a low-noise 3.3 V analog supply or filtered through a ferrite bead to keep ADC ENOB at high levels.
Use a 4-layer PCB with a continuous ground plane under the LQFP-176 footprint. Keep the 0.5 mm pitch traces on inner layers where possible, and fan out from the outer pads to inner signal layers within 3 mm. Match impedance to 50 ohms for the Ethernet RMII bus and USB DP/DM differential pair. Provide a guard ring around the HSE crystal traces and keep clock traces short and symmetric. Reference RM0090 application-note recommendations for decoupling placement.
Do not float the BOOT0 pin; tie it through a 10 kohm resistor to either VDD (boot from main flash) or GND (boot from system memory for bootloader). Setting it incorrectly at reset prevents the application from launching. Similarly, the NRST pin must have a 100 nF capacitor and 10 kohm pull-up; missing the NRST cap results in brown-out resets. Avoid using PF0/PF1 as GPIO on LQFP-176 if you need the OSC_OUT/OSC_IN crystal; on this part those pins may not be bonded out, so check the alternate-function table.
Estimated: at maximum core frequency of 180 MHz, the STM32F439IGT6 dissipates approximately 1.5-2 W under heavy peripheral load (Ethernet + USB + TFT). With theta_JA of approximately 30 C/W for LQFP-176 on a 4-layer JEDEC test board, junction temperature rises 45-60 C above ambient. Forced airflow is recommended if the device is run continuously near maximum frequency with all peripherals active; derating is essential for industrial temperature grades (-40 to +85 C).
Thông tin tuân thủ
RoHS compliant per ST product page. Industrial temperature grade -40 C to +85 C. Not AEC-Q100 qualified - choose STM32F439IGT6 (AES-grade equivalent) only for non-automotive applications.