STM32F439IGT6 - 180MHz ARM MCU 1MB Flash LQFP-176 | STMicroelectronics
料号： STM32F439IGT6 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.75 | $12.75 |
| 10 | $11.84 | $118.40 |
| 100 | $10.45 | $1,045.00 |
| 500 | $9.2 | $4,600.00 |
| 1,000 | $8.4 | $8,400.00 |
STM32F439IGT6 概述
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.
直接替换替代料： STM32F439IGT6 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： STM32F439IGT6 （相同外形与封装尺寸） ——差异在于 Package, Timers, SRAM, Communication Interfaces, ADC.
快速对比工具——选择替代料号进行并排对比：
STM32F437IIT6
✅ 直接替换✓ 有现货
$11.84 / 个
查看数据手册 →STM32F429VGT6TR
✅ 直接替换✓ 有现货
$10.85 / 个
查看数据手册 →STM32F427VGT6
✅ 直接替换✓ 有现货
$8.95 / 个
查看数据手册 →STM32F429VET6
✅ 直接替换✓ 有现货
$9.21 / 个
查看数据手册 →STM32F427IIT6
✅ 直接替换✓ 有现货
$11.2 / 个
查看数据手册 →STM32F439IGT6 最大额定值与电气特性
| Core Architecture | ARM Cortex-M4 with FPU and DSP instructions |
| 最大时钟频率 | 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 |
| 工作温度 | -40 C to +85 C |
| 封装 | 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 |
| 引脚数量 | 176 |
| Pitch | 0.5 mm |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
STM32F439IGT6 引脚配置
| 引脚 1 | PE02 — GPIO PE2, alt-function TRACECLK |
| 引脚 2 | PE03 — GPIO PE3, alt-function TRACED0 |
| 引脚 3 | PE04 — GPIO PE4, alt-function TRACED1 |
| 引脚 4 | PE05 — GPIO PE5, alt-function TRACED2 |
| 引脚 5 | PE06 — GPIO PE6, alt-function TRACED3 |
| 引脚 6 | VBAT — RTC backup supply |
| 引脚 7 | PC13 — GPIO PC13, RTC TAMPER |
| 引脚 8 | PC14 — GPIO PC14, OSC32_IN |
| 引脚 9 | PC15 — GPIO PC15, OSC32_OUT |
| 引脚 10 | VREF+ — ADC reference voltage |
| 引脚 11 | VDDA — Analog supply |
| 引脚 12 | PA00 — GPIO PA0, WKUP, ADC_IN0, TIM2_CH1 |
| 引脚 13 | PA01 — GPIO PA1, ADC_IN1, TIM2_CH2 |
| 引脚 14 | PA02 — GPIO PA2, ADC_IN2, TIM2_CH3 |
| 引脚 15 | PA03 — GPIO PA3, ADC_IN3, TIM2_CH4 |
| 引脚 16 | VSSA — Analog ground |
| 引脚 17 | VDD — Digital supply |
| 引脚 18 | PA04 — GPIO PA4, ADC_IN4, DAC_OUT1 |
| 引脚 19 | PA05 — GPIO PA5, ADC_IN5, DAC_OUT2 |
| 引脚 20 | PA06 — GPIO PA6, ADC_IN6, TIM3_CH1 |
| 引脚 21 | PA07 — GPIO PA7, ADC_IN7, TIM3_CH2 |
| 引脚 22 | PC04 — GPIO PC4, ADC_IN14 |
| 引脚 23 | PC05 — GPIO PC5, ADC_IN15 |
| 引脚 24 | PB00 — GPIO PB0, ADC_IN8, TIM3_CH3 |
| 引脚 25 | PB01 — GPIO PB1, ADC_IN9, TIM3_CH4 |
| 引脚 26 | PB02 — GPIO PB2, BOOT1 |
| 引脚 27 | PB10 — GPIO PB10, I2C2_SCL, USART3_TX |
| 引脚 28 | PB11 — GPIO PB11, I2C2_SDA, USART3_RX |
| 引脚 29 | VCAP_1 — Internal regulator capacitor |
| 引脚 30 | VSS — Digital ground |
| 引脚 31 | VDD — Digital supply |
| 引脚 32 | PB12 — GPIO PB12, SPI2_NSS, I2S2_WS |
| 引脚 33 | PB13 — GPIO PB13, SPI2_SCK, I2S2_CK |
| 引脚 34 | PB14 — GPIO PB14, SPI2_MISO, TIM12_CH1 |
| 引脚 35 | PB15 — GPIO PB15, SPI2_MOSI, I2S2_SD |
| 引脚 36 | PC06 — GPIO PC6, TIM3_CH1, USART6_TX |
| 引脚 37 | PC07 — GPIO PC7, TIM3_CH2, USART6_RX |
| 引脚 38 | PC08 — GPIO PC8, TIM3_CH3, SDIO_D0 |
| 引脚 39 | PC09 — GPIO PC9, TIM3_CH4, SDIO_D1 |
| 引脚 40 | PA08 — GPIO PA8, TIM1_CH1, USART1_CK, MCO1 |
| 引脚 41 | PA09 — GPIO PA9, USART1_TX, TIM1_CH2 |
| 引脚 42 | PA10 — GPIO PA10, USART1_RX, TIM1_CH3 |
| 引脚 43 | PA11 — GPIO PA11, USB_DM, CAN1_RX |
| 引脚 44 | PA12 — GPIO PA12, USB_DP, CAN1_TX |
| 引脚 45 | PA13 — GPIO PA13, JTMS-SWDIO |
| 引脚 46 | VCAP_2 — Internal regulator capacitor |
| 引脚 47 | VSS — Digital ground |
| 引脚 48 | VDD — Digital supply |
| 引脚 49 | PA14 — GPIO PA14, JTCK-SWCLK |
| 引脚 50 | PA15 — GPIO PA15, JTDI, SPI1_NSS, TIM2_CH1 |
| 引脚 51 | PC10 — GPIO PC10, UART4_TX, SDIO_D2 |
| 引脚 52 | PC11 — GPIO PC11, UART4_RX, SDIO_D3 |
| 引脚 53 | PC12 — GPIO PC12, UART5_TX, SDIO_CK |
| 引脚 54 | PD00 — GPIO PD0, FSMC_D2, CAN1_RX |
| 引脚 55 | PD01 — GPIO PD1, FSMC_D3, CAN1_TX |
| 引脚 56 | PD02 — GPIO PD2, TIM3_ETR, UART5_RX, SDIO_CMD |
| 引脚 57 | PD03 — GPIO PD3, FSMC_CLK |
| 引脚 58 | PD04 — GPIO PD4, FSMC_NOE |
| 引脚 59 | PD05 — GPIO PD5, FSMC_NWE |
| 引脚 60 | VSS — Digital ground |
| 引脚 61 | VDD — Digital supply |
| 引脚 62 | PD06 — GPIO PD6, FSMC_NWAIT |
| 引脚 63 | PD07 — GPIO PD7, FSMC_NE1, USART2_CK |
| 引脚 64 | PG09 — GPIO PG9, FSMC_NE2 |
| 引脚 65 | PG10 — GPIO PG10, FSMC_NE3 |
| 引脚 66 | PG11 — GPIO PG11, FSMC_NE4 |
| 引脚 67 | PG12 — GPIO PG12, FSMC_NE5 |
| 引脚 68 | PG13 — GPIO PG13, FSMC_A24 |
| 引脚 69 | PG14 — GPIO PG14, FSMC_A25 |
| 引脚 70 | VSS — Digital ground |
| 引脚 71 | VDD — Digital supply |
| 引脚 72 | PG15 — GPIO PG15 |
| 引脚 73 | PB03 — GPIO PB3, JTDO-SWO, SPI1_SCK, TIM2_CH2 |
| 引脚 74 | PB04 — GPIO PB4, NJTRST, SPI1_MISO, TIM3_CH1 |
| 引脚 75 | PB05 — GPIO PB5, I2C1_SMBAI, SPI1_MOSI, TIM3_CH2 |
| 引脚 76 | PB06 — GPIO PB6, I2C1_SCL, TIM4_CH1, USART1_TX |
| 引脚 77 | PB07 — GPIO PB7, I2C1_SDA, TIM4_CH2, USART1_RX |
| 引脚 78 | BOOT0 — Boot mode select |
| 引脚 79 | PB08 — GPIO PB8, TIM4_CH3, I2C1_SCL, CAN1_RX |
| 引脚 80 | PB09 — GPIO PB9, TIM4_CH4, I2C1_SDA, CAN1_TX |
| 引脚 81 | PE00 — GPIO PE0, TIM4_ETR |
| 引脚 82 | PE01 — GPIO PE1 |
| 引脚 83 | VSS — Digital ground |
| 引脚 84 | VDD — Digital supply |
| 引脚 85 | PI10 — GPIO PI10, FSMC_NIORD |
| 引脚 86 | PI11 — GPIO PI11, FSMC_NIOWR |
| 引脚 87 | VSS — Digital ground |
| 引脚 88 | VDD — Digital supply |
| 引脚 89 | PI12 — GPIO PI12, FSMC_D[20] |
| 引脚 90 | PI13 — GPIO PI13, FSMC_D[21] |
| 引脚 91 | PI14 — GPIO PI14, FSMC_D[22] |
| 引脚 92 | PI15 — GPIO PI15, FSMC_D[23] |
| 引脚 93 | VSS — Digital ground |
| 引脚 94 | VDD — Digital supply |
| 引脚 95 | PG00 — GPIO PG0, FSMC_A10 |
| 引脚 96 | PG01 — GPIO PG1, FSMC_A11 |
| 引脚 97 | PE07 — GPIO PE7, TIM1_ETR, FSMC_D4 |
| 引脚 98 | PE08 — GPIO PE8, TIM1_CH1N, FSMC_D5 |
| 引脚 99 | PE09 — GPIO PE9, TIM1_CH1, FSMC_D6 |
| 引脚 100 | VSS — Digital ground |
| 引脚 101 | VDD — Digital supply |
| 引脚 102 | PE10 — GPIO PE10, TIM1_CH2N, FSMC_D7 |
| 引脚 103 | PE11 — GPIO PE11, TIM1_CH2, FSMC_D8 |
| 引脚 104 | PE12 — GPIO PE12, TIM1_CH3N, FSMC_D9 |
| 引脚 105 | PE13 — GPIO PE13, TIM1_CH3, FSMC_D10 |
| 引脚 106 | PE14 — GPIO PE14, TIM1_CH4, FSMC_D11 |
| 引脚 107 | PE15 — GPIO PE15, TIM1_BKIN, FSMC_D12 |
| 引脚 108 | PB10 — GPIO PB10 |
| 引脚 109 | PB11 — GPIO PB11 |
| 引脚 110 | VCAP_1 — Internal regulator capacitor |
| 引脚 111 | VSS — Digital ground |
| 引脚 112 | VDD — Digital supply |
| 引脚 113 | PB12 — GPIO PB12 |
| 引脚 114 | PB13 — GPIO PB13 |
| 引脚 115 | PB14 — GPIO PB14 |
| 引脚 116 | PB15 — GPIO PB15 |
| 引脚 117 | PD08 — GPIO PD8, FSMC_D13, USART3_TX |
| 引脚 118 | PD09 — GPIO PD9, FSMC_D14, USART3_RX |
| 引脚 119 | PD10 — GPIO PD10, FSMC_D15 |
| 引脚 120 | PD11 — GPIO PD11, FSMC_A16, USART3_CTS |
| 引脚 121 | PD12 — GPIO PD12, FSMC_A17, TIM4_CH1 |
| 引脚 122 | VSS — Digital ground |
| 引脚 123 | VDD — Digital supply |
| 引脚 124 | PD13 — GPIO PD13, FSMC_A18, TIM4_CH2 |
| 引脚 125 | PD14 — GPIO PD14, FSMC_D0, TIM4_CH3 |
| 引脚 126 | PD15 — GPIO PD15, FSMC_D1, TIM4_CH4 |
| 引脚 127 | PG02 — GPIO PG2, FSMC_A12 |
| 引脚 128 | PG03 — GPIO PG3, FSMC_A13 |
| 引脚 129 | PG04 — GPIO PG4, FSMC_A14 |
| 引脚 130 | PG05 — GPIO PG5, FSMC_A15 |
| 引脚 131 | PG06 — GPIO PG6, FSMC_INT2 |
| 引脚 132 | PG07 — GPIO PG7, FSMC_INT3, USART6_CK |
| 引脚 133 | PG08 — GPIO PG8, FSMC_CLK, USART6_RTS |
| 引脚 134 | VSS — Digital ground |
| 引脚 135 | VDD — Digital supply |
| 引脚 136 | PC06 — GPIO PC6 |
| 引脚 137 | PC07 — GPIO PC7 |
| 引脚 138 | PC08 — GPIO PC8 |
| 引脚 139 | PC09 — GPIO PC9 |
| 引脚 140 | PA08 — GPIO PA8 |
| 引脚 141 | PA09 — GPIO PA9 |
| 引脚 142 | PA10 — GPIO PA10 |
| 引脚 143 | PA11 — GPIO PA11 |
| 引脚 144 | PA12 — GPIO PA12 |
| 引脚 145 | PA13 — GPIO PA13 |
| 引脚 146 | VCAP_2 — Internal regulator capacitor |
| 引脚 147 | VSS — Digital ground |
| 引脚 148 | VDD — Digital supply |
| 引脚 149 | PA14 — GPIO PA14 |
| 引脚 150 | PA15 — GPIO PA15 |
| 引脚 151 | PC10 — GPIO PC10 |
| 引脚 152 | PC11 — GPIO PC11 |
| 引脚 153 | PC12 — GPIO PC12 |
| 引脚 154 | PD00 — GPIO PD0 |
| 引脚 155 | PD01 — GPIO PD1 |
| 引脚 156 | PD02 — GPIO PD2 |
| 引脚 157 | PD03 — GPIO PD3 |
| 引脚 158 | PD04 — GPIO PD4 |
| 引脚 159 | PD05 — GPIO PD5 |
| 引脚 160 | VSS — Digital ground |
| 引脚 161 | VDD — Digital supply |
| 引脚 162 | PD06 — GPIO PD6 |
| 引脚 163 | PD07 — GPIO PD7 |
| 引脚 164 | PG09 — GPIO PG9 |
| 引脚 165 | PG10 — GPIO PG10 |
| 引脚 166 | PG11 — GPIO PG11 |
| 引脚 167 | PG12 — GPIO PG12 |
| 引脚 168 | PG13 — GPIO PG13 |
| 引脚 169 | PG14 — GPIO PG14 |
| 引脚 170 | VSS — Digital ground |
| 引脚 171 | VDD — Digital supply |
| 引脚 172 | PG15 — GPIO PG15 |
| 引脚 173 | PB03 — GPIO PB3 |
| 引脚 174 | PB04 — GPIO PB4 |
| 引脚 175 | PB05 — GPIO PB5 |
| 引脚 176 | PB07 — GPIO PB7 |
典型应用
STM32F439IGT6 适用于 7 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： STM32F439IGT6 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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) |
关键差异点
- Integrated hardware crypto/hash engine （对比 STM32F429VGT6)
- Highest-density F4 in mainstream line （对比 STM32F429VGT6)
- 1 MB Flash at lower cost vs 2 MB F427/F437 （对比 STM32F437IIT6)
设计说明
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).
合规信息
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.