STM32F439IGT6 - 180MHz ARM MCU 1MB Flash LQFP-176 | STMicroelectronics
MPN: STM32F439IGT6 ✓ نشطSTM32F439IGT6 نظرة عامة
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.
بدائل مباشرة لـ STM32F439IGT6 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع STM32F439IGT6 (نفس عامل الشكل والبصمة) — يختلف في Package, Timers, SRAM, Communication Interfaces, ADC.
STM32F437IIT6
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←STM32F429VGT6TR
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←STM32F427VGT6
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←STM32F429VET6
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←STM32F427IIT6
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←STM32F439IGT6 الحدود القصوى والخصائص الكهربائية
| Core Architecture | ARM Cortex-M4 with FPU and DSP instructions |
| أقصى تردد للساعة | 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 |
| درجة حرارة التشغيل | -40 C to +85 C |
| العلبة | 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 |
| عدد الأطراف | 176 |
| Pitch | 0.5 mm |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant |
تكوين أطراف STM32F439IGT6
| دبوس 1 | PE02 — GPIO PE2, alt-function TRACECLK |
| دبوس 2 | PE03 — GPIO PE3, alt-function TRACED0 |
| دبوس 3 | PE04 — GPIO PE4, alt-function TRACED1 |
| دبوس 4 | PE05 — GPIO PE5, alt-function TRACED2 |
| دبوس 5 | PE06 — GPIO PE6, alt-function TRACED3 |
| دبوس 6 | VBAT — RTC backup supply |
| دبوس 7 | PC13 — GPIO PC13, RTC TAMPER |
| دبوس 8 | PC14 — GPIO PC14, OSC32_IN |
| دبوس 9 | PC15 — GPIO PC15, OSC32_OUT |
| دبوس 10 | VREF+ — ADC reference voltage |
| دبوس 11 | VDDA — Analog supply |
| دبوس 12 | PA00 — GPIO PA0, WKUP, ADC_IN0, TIM2_CH1 |
| دبوس 13 | PA01 — GPIO PA1, ADC_IN1, TIM2_CH2 |
| دبوس 14 | PA02 — GPIO PA2, ADC_IN2, TIM2_CH3 |
| دبوس 15 | PA03 — GPIO PA3, ADC_IN3, TIM2_CH4 |
| دبوس 16 | VSSA — Analog ground |
| دبوس 17 | VDD — Digital supply |
| دبوس 18 | PA04 — GPIO PA4, ADC_IN4, DAC_OUT1 |
| دبوس 19 | PA05 — GPIO PA5, ADC_IN5, DAC_OUT2 |
| دبوس 20 | PA06 — GPIO PA6, ADC_IN6, TIM3_CH1 |
| دبوس 21 | PA07 — GPIO PA7, ADC_IN7, TIM3_CH2 |
| دبوس 22 | PC04 — GPIO PC4, ADC_IN14 |
| دبوس 23 | PC05 — GPIO PC5, ADC_IN15 |
| دبوس 24 | PB00 — GPIO PB0, ADC_IN8, TIM3_CH3 |
| دبوس 25 | PB01 — GPIO PB1, ADC_IN9, TIM3_CH4 |
| دبوس 26 | PB02 — GPIO PB2, BOOT1 |
| دبوس 27 | PB10 — GPIO PB10, I2C2_SCL, USART3_TX |
| دبوس 28 | PB11 — GPIO PB11, I2C2_SDA, USART3_RX |
| دبوس 29 | VCAP_1 — Internal regulator capacitor |
| دبوس 30 | VSS — Digital ground |
| دبوس 31 | VDD — Digital supply |
| دبوس 32 | PB12 — GPIO PB12, SPI2_NSS, I2S2_WS |
| دبوس 33 | PB13 — GPIO PB13, SPI2_SCK, I2S2_CK |
| دبوس 34 | PB14 — GPIO PB14, SPI2_MISO, TIM12_CH1 |
| دبوس 35 | PB15 — GPIO PB15, SPI2_MOSI, I2S2_SD |
| دبوس 36 | PC06 — GPIO PC6, TIM3_CH1, USART6_TX |
| دبوس 37 | PC07 — GPIO PC7, TIM3_CH2, USART6_RX |
| دبوس 38 | PC08 — GPIO PC8, TIM3_CH3, SDIO_D0 |
| دبوس 39 | PC09 — GPIO PC9, TIM3_CH4, SDIO_D1 |
| دبوس 40 | PA08 — GPIO PA8, TIM1_CH1, USART1_CK, MCO1 |
| دبوس 41 | PA09 — GPIO PA9, USART1_TX, TIM1_CH2 |
| دبوس 42 | PA10 — GPIO PA10, USART1_RX, TIM1_CH3 |
| دبوس 43 | PA11 — GPIO PA11, USB_DM, CAN1_RX |
| دبوس 44 | PA12 — GPIO PA12, USB_DP, CAN1_TX |
| دبوس 45 | PA13 — GPIO PA13, JTMS-SWDIO |
| دبوس 46 | VCAP_2 — Internal regulator capacitor |
| دبوس 47 | VSS — Digital ground |
| دبوس 48 | VDD — Digital supply |
| دبوس 49 | PA14 — GPIO PA14, JTCK-SWCLK |
| دبوس 50 | PA15 — GPIO PA15, JTDI, SPI1_NSS, TIM2_CH1 |
| دبوس 51 | PC10 — GPIO PC10, UART4_TX, SDIO_D2 |
| دبوس 52 | PC11 — GPIO PC11, UART4_RX, SDIO_D3 |
| دبوس 53 | PC12 — GPIO PC12, UART5_TX, SDIO_CK |
| دبوس 54 | PD00 — GPIO PD0, FSMC_D2, CAN1_RX |
| دبوس 55 | PD01 — GPIO PD1, FSMC_D3, CAN1_TX |
| دبوس 56 | PD02 — GPIO PD2, TIM3_ETR, UART5_RX, SDIO_CMD |
| دبوس 57 | PD03 — GPIO PD3, FSMC_CLK |
| دبوس 58 | PD04 — GPIO PD4, FSMC_NOE |
| دبوس 59 | PD05 — GPIO PD5, FSMC_NWE |
| دبوس 60 | VSS — Digital ground |
| دبوس 61 | VDD — Digital supply |
| دبوس 62 | PD06 — GPIO PD6, FSMC_NWAIT |
| دبوس 63 | PD07 — GPIO PD7, FSMC_NE1, USART2_CK |
| دبوس 64 | PG09 — GPIO PG9, FSMC_NE2 |
| دبوس 65 | PG10 — GPIO PG10, FSMC_NE3 |
| دبوس 66 | PG11 — GPIO PG11, FSMC_NE4 |
| دبوس 67 | PG12 — GPIO PG12, FSMC_NE5 |
| دبوس 68 | PG13 — GPIO PG13, FSMC_A24 |
| دبوس 69 | PG14 — GPIO PG14, FSMC_A25 |
| دبوس 70 | VSS — Digital ground |
| دبوس 71 | VDD — Digital supply |
| دبوس 72 | PG15 — GPIO PG15 |
| دبوس 73 | PB03 — GPIO PB3, JTDO-SWO, SPI1_SCK, TIM2_CH2 |
| دبوس 74 | PB04 — GPIO PB4, NJTRST, SPI1_MISO, TIM3_CH1 |
| دبوس 75 | PB05 — GPIO PB5, I2C1_SMBAI, SPI1_MOSI, TIM3_CH2 |
| دبوس 76 | PB06 — GPIO PB6, I2C1_SCL, TIM4_CH1, USART1_TX |
| دبوس 77 | PB07 — GPIO PB7, I2C1_SDA, TIM4_CH2, USART1_RX |
| دبوس 78 | BOOT0 — Boot mode select |
| دبوس 79 | PB08 — GPIO PB8, TIM4_CH3, I2C1_SCL, CAN1_RX |
| دبوس 80 | PB09 — GPIO PB9, TIM4_CH4, I2C1_SDA, CAN1_TX |
| دبوس 81 | PE00 — GPIO PE0, TIM4_ETR |
| دبوس 82 | PE01 — GPIO PE1 |
| دبوس 83 | VSS — Digital ground |
| دبوس 84 | VDD — Digital supply |
| دبوس 85 | PI10 — GPIO PI10, FSMC_NIORD |
| دبوس 86 | PI11 — GPIO PI11, FSMC_NIOWR |
| دبوس 87 | VSS — Digital ground |
| دبوس 88 | VDD — Digital supply |
| دبوس 89 | PI12 — GPIO PI12, FSMC_D[20] |
| دبوس 90 | PI13 — GPIO PI13, FSMC_D[21] |
| دبوس 91 | PI14 — GPIO PI14, FSMC_D[22] |
| دبوس 92 | PI15 — GPIO PI15, FSMC_D[23] |
| دبوس 93 | VSS — Digital ground |
| دبوس 94 | VDD — Digital supply |
| دبوس 95 | PG00 — GPIO PG0, FSMC_A10 |
| دبوس 96 | PG01 — GPIO PG1, FSMC_A11 |
| دبوس 97 | PE07 — GPIO PE7, TIM1_ETR, FSMC_D4 |
| دبوس 98 | PE08 — GPIO PE8, TIM1_CH1N, FSMC_D5 |
| دبوس 99 | PE09 — GPIO PE9, TIM1_CH1, FSMC_D6 |
| دبوس 100 | VSS — Digital ground |
| دبوس 101 | VDD — Digital supply |
| دبوس 102 | PE10 — GPIO PE10, TIM1_CH2N, FSMC_D7 |
| دبوس 103 | PE11 — GPIO PE11, TIM1_CH2, FSMC_D8 |
| دبوس 104 | PE12 — GPIO PE12, TIM1_CH3N, FSMC_D9 |
| دبوس 105 | PE13 — GPIO PE13, TIM1_CH3, FSMC_D10 |
| دبوس 106 | PE14 — GPIO PE14, TIM1_CH4, FSMC_D11 |
| دبوس 107 | PE15 — GPIO PE15, TIM1_BKIN, FSMC_D12 |
| دبوس 108 | PB10 — GPIO PB10 |
| دبوس 109 | PB11 — GPIO PB11 |
| دبوس 110 | VCAP_1 — Internal regulator capacitor |
| دبوس 111 | VSS — Digital ground |
| دبوس 112 | VDD — Digital supply |
| دبوس 113 | PB12 — GPIO PB12 |
| دبوس 114 | PB13 — GPIO PB13 |
| دبوس 115 | PB14 — GPIO PB14 |
| دبوس 116 | PB15 — GPIO PB15 |
| دبوس 117 | PD08 — GPIO PD8, FSMC_D13, USART3_TX |
| دبوس 118 | PD09 — GPIO PD9, FSMC_D14, USART3_RX |
| دبوس 119 | PD10 — GPIO PD10, FSMC_D15 |
| دبوس 120 | PD11 — GPIO PD11, FSMC_A16, USART3_CTS |
| دبوس 121 | PD12 — GPIO PD12, FSMC_A17, TIM4_CH1 |
| دبوس 122 | VSS — Digital ground |
| دبوس 123 | VDD — Digital supply |
| دبوس 124 | PD13 — GPIO PD13, FSMC_A18, TIM4_CH2 |
| دبوس 125 | PD14 — GPIO PD14, FSMC_D0, TIM4_CH3 |
| دبوس 126 | PD15 — GPIO PD15, FSMC_D1, TIM4_CH4 |
| دبوس 127 | PG02 — GPIO PG2, FSMC_A12 |
| دبوس 128 | PG03 — GPIO PG3, FSMC_A13 |
| دبوس 129 | PG04 — GPIO PG4, FSMC_A14 |
| دبوس 130 | PG05 — GPIO PG5, FSMC_A15 |
| دبوس 131 | PG06 — GPIO PG6, FSMC_INT2 |
| دبوس 132 | PG07 — GPIO PG7, FSMC_INT3, USART6_CK |
| دبوس 133 | PG08 — GPIO PG8, FSMC_CLK, USART6_RTS |
| دبوس 134 | VSS — Digital ground |
| دبوس 135 | VDD — Digital supply |
| دبوس 136 | PC06 — GPIO PC6 |
| دبوس 137 | PC07 — GPIO PC7 |
| دبوس 138 | PC08 — GPIO PC8 |
| دبوس 139 | PC09 — GPIO PC9 |
| دبوس 140 | PA08 — GPIO PA8 |
| دبوس 141 | PA09 — GPIO PA9 |
| دبوس 142 | PA10 — GPIO PA10 |
| دبوس 143 | PA11 — GPIO PA11 |
| دبوس 144 | PA12 — GPIO PA12 |
| دبوس 145 | PA13 — GPIO PA13 |
| دبوس 146 | VCAP_2 — Internal regulator capacitor |
| دبوس 147 | VSS — Digital ground |
| دبوس 148 | VDD — Digital supply |
| دبوس 149 | PA14 — GPIO PA14 |
| دبوس 150 | PA15 — GPIO PA15 |
| دبوس 151 | PC10 — GPIO PC10 |
| دبوس 152 | PC11 — GPIO PC11 |
| دبوس 153 | PC12 — GPIO PC12 |
| دبوس 154 | PD00 — GPIO PD0 |
| دبوس 155 | PD01 — GPIO PD1 |
| دبوس 156 | PD02 — GPIO PD2 |
| دبوس 157 | PD03 — GPIO PD3 |
| دبوس 158 | PD04 — GPIO PD4 |
| دبوس 159 | PD05 — GPIO PD5 |
| دبوس 160 | VSS — Digital ground |
| دبوس 161 | VDD — Digital supply |
| دبوس 162 | PD06 — GPIO PD6 |
| دبوس 163 | PD07 — GPIO PD7 |
| دبوس 164 | PG09 — GPIO PG9 |
| دبوس 165 | PG10 — GPIO PG10 |
| دبوس 166 | PG11 — GPIO PG11 |
| دبوس 167 | PG12 — GPIO PG12 |
| دبوس 168 | PG13 — GPIO PG13 |
| دبوس 169 | PG14 — GPIO PG14 |
| دبوس 170 | VSS — Digital ground |
| دبوس 171 | VDD — Digital supply |
| دبوس 172 | PG15 — GPIO PG15 |
| دبوس 173 | PB03 — GPIO PB3 |
| دبوس 174 | PB04 — GPIO PB4 |
| دبوس 175 | PB05 — GPIO PB5 |
| دبوس 176 | PB07 — GPIO PB7 |
التطبيقات النموذجية
STM32F439IGT6 مناسب لـ 7 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ STM32F439IGT6 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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) |
أبرز الفروقات
- Integrated hardware crypto/hash engine (مقابلSTM32F429VGT6)
- Highest-density F4 in mainstream line (مقابلSTM32F429VGT6)
- 1 MB Flash at lower cost vs 2 MB F427/F437 (مقابلSTM32F437IIT6)
ملاحظات التصميم
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).
معلومات الامتثال
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.