STM32F439IGT6 - 180MHz ARM MCU 1MB Flash LQFP-176 | STMicroelectronics
MPN: STM32F439IGT6 ✓ פעילSTM32F439IGT6 סקירה
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.
חלופות תחליף ישיר עבור STM32F439IGT6 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם STM32F439IGT6 (אותו גורם צורה וטביעת רגל) — שונים ב Package, Timers, SRAM, Communication Interfaces, ADC.
STM32F437IIT6
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32F429VGT6TR
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32F427VGT6
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32F429VET6
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32F427IIT6
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←STM32F439IGT6 דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | ARM Cortex-M4 with FPU and DSP instructions |
| תדר שעון מקסימלי | 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 |
| טמפרטורת פעולה | -40 C to +85 C |
| מארז | 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 |
| מספר פינים | 176 |
| Pitch | 0.5 mm |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
תצורת פינים של STM32F439IGT6
| פין 1 | PE02 — GPIO PE2, alt-function TRACECLK |
| פין 2 | PE03 — GPIO PE3, alt-function TRACED0 |
| פין 3 | PE04 — GPIO PE4, alt-function TRACED1 |
| פין 4 | PE05 — GPIO PE5, alt-function TRACED2 |
| פין 5 | PE06 — GPIO PE6, alt-function TRACED3 |
| פין 6 | VBAT — RTC backup supply |
| פין 7 | PC13 — GPIO PC13, RTC TAMPER |
| פין 8 | PC14 — GPIO PC14, OSC32_IN |
| פין 9 | PC15 — GPIO PC15, OSC32_OUT |
| פין 10 | VREF+ — ADC reference voltage |
| פין 11 | VDDA — Analog supply |
| פין 12 | PA00 — GPIO PA0, WKUP, ADC_IN0, TIM2_CH1 |
| פין 13 | PA01 — GPIO PA1, ADC_IN1, TIM2_CH2 |
| פין 14 | PA02 — GPIO PA2, ADC_IN2, TIM2_CH3 |
| פין 15 | PA03 — GPIO PA3, ADC_IN3, TIM2_CH4 |
| פין 16 | VSSA — Analog ground |
| פין 17 | VDD — Digital supply |
| פין 18 | PA04 — GPIO PA4, ADC_IN4, DAC_OUT1 |
| פין 19 | PA05 — GPIO PA5, ADC_IN5, DAC_OUT2 |
| פין 20 | PA06 — GPIO PA6, ADC_IN6, TIM3_CH1 |
| פין 21 | PA07 — GPIO PA7, ADC_IN7, TIM3_CH2 |
| פין 22 | PC04 — GPIO PC4, ADC_IN14 |
| פין 23 | PC05 — GPIO PC5, ADC_IN15 |
| פין 24 | PB00 — GPIO PB0, ADC_IN8, TIM3_CH3 |
| פין 25 | PB01 — GPIO PB1, ADC_IN9, TIM3_CH4 |
| פין 26 | PB02 — GPIO PB2, BOOT1 |
| פין 27 | PB10 — GPIO PB10, I2C2_SCL, USART3_TX |
| פין 28 | PB11 — GPIO PB11, I2C2_SDA, USART3_RX |
| פין 29 | VCAP_1 — Internal regulator capacitor |
| פין 30 | VSS — Digital ground |
| פין 31 | VDD — Digital supply |
| פין 32 | PB12 — GPIO PB12, SPI2_NSS, I2S2_WS |
| פין 33 | PB13 — GPIO PB13, SPI2_SCK, I2S2_CK |
| פין 34 | PB14 — GPIO PB14, SPI2_MISO, TIM12_CH1 |
| פין 35 | PB15 — GPIO PB15, SPI2_MOSI, I2S2_SD |
| פין 36 | PC06 — GPIO PC6, TIM3_CH1, USART6_TX |
| פין 37 | PC07 — GPIO PC7, TIM3_CH2, USART6_RX |
| פין 38 | PC08 — GPIO PC8, TIM3_CH3, SDIO_D0 |
| פין 39 | PC09 — GPIO PC9, TIM3_CH4, SDIO_D1 |
| פין 40 | PA08 — GPIO PA8, TIM1_CH1, USART1_CK, MCO1 |
| פין 41 | PA09 — GPIO PA9, USART1_TX, TIM1_CH2 |
| פין 42 | PA10 — GPIO PA10, USART1_RX, TIM1_CH3 |
| פין 43 | PA11 — GPIO PA11, USB_DM, CAN1_RX |
| פין 44 | PA12 — GPIO PA12, USB_DP, CAN1_TX |
| פין 45 | PA13 — GPIO PA13, JTMS-SWDIO |
| פין 46 | VCAP_2 — Internal regulator capacitor |
| פין 47 | VSS — Digital ground |
| פין 48 | VDD — Digital supply |
| פין 49 | PA14 — GPIO PA14, JTCK-SWCLK |
| פין 50 | PA15 — GPIO PA15, JTDI, SPI1_NSS, TIM2_CH1 |
| פין 51 | PC10 — GPIO PC10, UART4_TX, SDIO_D2 |
| פין 52 | PC11 — GPIO PC11, UART4_RX, SDIO_D3 |
| פין 53 | PC12 — GPIO PC12, UART5_TX, SDIO_CK |
| פין 54 | PD00 — GPIO PD0, FSMC_D2, CAN1_RX |
| פין 55 | PD01 — GPIO PD1, FSMC_D3, CAN1_TX |
| פין 56 | PD02 — GPIO PD2, TIM3_ETR, UART5_RX, SDIO_CMD |
| פין 57 | PD03 — GPIO PD3, FSMC_CLK |
| פין 58 | PD04 — GPIO PD4, FSMC_NOE |
| פין 59 | PD05 — GPIO PD5, FSMC_NWE |
| פין 60 | VSS — Digital ground |
| פין 61 | VDD — Digital supply |
| פין 62 | PD06 — GPIO PD6, FSMC_NWAIT |
| פין 63 | PD07 — GPIO PD7, FSMC_NE1, USART2_CK |
| פין 64 | PG09 — GPIO PG9, FSMC_NE2 |
| פין 65 | PG10 — GPIO PG10, FSMC_NE3 |
| פין 66 | PG11 — GPIO PG11, FSMC_NE4 |
| פין 67 | PG12 — GPIO PG12, FSMC_NE5 |
| פין 68 | PG13 — GPIO PG13, FSMC_A24 |
| פין 69 | PG14 — GPIO PG14, FSMC_A25 |
| פין 70 | VSS — Digital ground |
| פין 71 | VDD — Digital supply |
| פין 72 | PG15 — GPIO PG15 |
| פין 73 | PB03 — GPIO PB3, JTDO-SWO, SPI1_SCK, TIM2_CH2 |
| פין 74 | PB04 — GPIO PB4, NJTRST, SPI1_MISO, TIM3_CH1 |
| פין 75 | PB05 — GPIO PB5, I2C1_SMBAI, SPI1_MOSI, TIM3_CH2 |
| פין 76 | PB06 — GPIO PB6, I2C1_SCL, TIM4_CH1, USART1_TX |
| פין 77 | PB07 — GPIO PB7, I2C1_SDA, TIM4_CH2, USART1_RX |
| פין 78 | BOOT0 — Boot mode select |
| פין 79 | PB08 — GPIO PB8, TIM4_CH3, I2C1_SCL, CAN1_RX |
| פין 80 | PB09 — GPIO PB9, TIM4_CH4, I2C1_SDA, CAN1_TX |
| פין 81 | PE00 — GPIO PE0, TIM4_ETR |
| פין 82 | PE01 — GPIO PE1 |
| פין 83 | VSS — Digital ground |
| פין 84 | VDD — Digital supply |
| פין 85 | PI10 — GPIO PI10, FSMC_NIORD |
| פין 86 | PI11 — GPIO PI11, FSMC_NIOWR |
| פין 87 | VSS — Digital ground |
| פין 88 | VDD — Digital supply |
| פין 89 | PI12 — GPIO PI12, FSMC_D[20] |
| פין 90 | PI13 — GPIO PI13, FSMC_D[21] |
| פין 91 | PI14 — GPIO PI14, FSMC_D[22] |
| פין 92 | PI15 — GPIO PI15, FSMC_D[23] |
| פין 93 | VSS — Digital ground |
| פין 94 | VDD — Digital supply |
| פין 95 | PG00 — GPIO PG0, FSMC_A10 |
| פין 96 | PG01 — GPIO PG1, FSMC_A11 |
| פין 97 | PE07 — GPIO PE7, TIM1_ETR, FSMC_D4 |
| פין 98 | PE08 — GPIO PE8, TIM1_CH1N, FSMC_D5 |
| פין 99 | PE09 — GPIO PE9, TIM1_CH1, FSMC_D6 |
| פין 100 | VSS — Digital ground |
| פין 101 | VDD — Digital supply |
| פין 102 | PE10 — GPIO PE10, TIM1_CH2N, FSMC_D7 |
| פין 103 | PE11 — GPIO PE11, TIM1_CH2, FSMC_D8 |
| פין 104 | PE12 — GPIO PE12, TIM1_CH3N, FSMC_D9 |
| פין 105 | PE13 — GPIO PE13, TIM1_CH3, FSMC_D10 |
| פין 106 | PE14 — GPIO PE14, TIM1_CH4, FSMC_D11 |
| פין 107 | PE15 — GPIO PE15, TIM1_BKIN, FSMC_D12 |
| פין 108 | PB10 — GPIO PB10 |
| פין 109 | PB11 — GPIO PB11 |
| פין 110 | VCAP_1 — Internal regulator capacitor |
| פין 111 | VSS — Digital ground |
| פין 112 | VDD — Digital supply |
| פין 113 | PB12 — GPIO PB12 |
| פין 114 | PB13 — GPIO PB13 |
| פין 115 | PB14 — GPIO PB14 |
| פין 116 | PB15 — GPIO PB15 |
| פין 117 | PD08 — GPIO PD8, FSMC_D13, USART3_TX |
| פין 118 | PD09 — GPIO PD9, FSMC_D14, USART3_RX |
| פין 119 | PD10 — GPIO PD10, FSMC_D15 |
| פין 120 | PD11 — GPIO PD11, FSMC_A16, USART3_CTS |
| פין 121 | PD12 — GPIO PD12, FSMC_A17, TIM4_CH1 |
| פין 122 | VSS — Digital ground |
| פין 123 | VDD — Digital supply |
| פין 124 | PD13 — GPIO PD13, FSMC_A18, TIM4_CH2 |
| פין 125 | PD14 — GPIO PD14, FSMC_D0, TIM4_CH3 |
| פין 126 | PD15 — GPIO PD15, FSMC_D1, TIM4_CH4 |
| פין 127 | PG02 — GPIO PG2, FSMC_A12 |
| פין 128 | PG03 — GPIO PG3, FSMC_A13 |
| פין 129 | PG04 — GPIO PG4, FSMC_A14 |
| פין 130 | PG05 — GPIO PG5, FSMC_A15 |
| פין 131 | PG06 — GPIO PG6, FSMC_INT2 |
| פין 132 | PG07 — GPIO PG7, FSMC_INT3, USART6_CK |
| פין 133 | PG08 — GPIO PG8, FSMC_CLK, USART6_RTS |
| פין 134 | VSS — Digital ground |
| פין 135 | VDD — Digital supply |
| פין 136 | PC06 — GPIO PC6 |
| פין 137 | PC07 — GPIO PC7 |
| פין 138 | PC08 — GPIO PC8 |
| פין 139 | PC09 — GPIO PC9 |
| פין 140 | PA08 — GPIO PA8 |
| פין 141 | PA09 — GPIO PA9 |
| פין 142 | PA10 — GPIO PA10 |
| פין 143 | PA11 — GPIO PA11 |
| פין 144 | PA12 — GPIO PA12 |
| פין 145 | PA13 — GPIO PA13 |
| פין 146 | VCAP_2 — Internal regulator capacitor |
| פין 147 | VSS — Digital ground |
| פין 148 | VDD — Digital supply |
| פין 149 | PA14 — GPIO PA14 |
| פין 150 | PA15 — GPIO PA15 |
| פין 151 | PC10 — GPIO PC10 |
| פין 152 | PC11 — GPIO PC11 |
| פין 153 | PC12 — GPIO PC12 |
| פין 154 | PD00 — GPIO PD0 |
| פין 155 | PD01 — GPIO PD1 |
| פין 156 | PD02 — GPIO PD2 |
| פין 157 | PD03 — GPIO PD3 |
| פין 158 | PD04 — GPIO PD4 |
| פין 159 | PD05 — GPIO PD5 |
| פין 160 | VSS — Digital ground |
| פין 161 | VDD — Digital supply |
| פין 162 | PD06 — GPIO PD6 |
| פין 163 | PD07 — GPIO PD7 |
| פין 164 | PG09 — GPIO PG9 |
| פין 165 | PG10 — GPIO PG10 |
| פין 166 | PG11 — GPIO PG11 |
| פין 167 | PG12 — GPIO PG12 |
| פין 168 | PG13 — GPIO PG13 |
| פין 169 | PG14 — GPIO PG14 |
| פין 170 | VSS — Digital ground |
| פין 171 | VDD — Digital supply |
| פין 172 | PG15 — GPIO PG15 |
| פין 173 | PB03 — GPIO PB3 |
| פין 174 | PB04 — GPIO PB4 |
| פין 175 | PB05 — GPIO PB5 |
| פין 176 | PB07 — GPIO PB7 |
יישומים טיפוסיים
STM32F439IGT6 מתאים עבור 7 יישוםs: 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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
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.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור STM32F439IGT6 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | 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) |
מבדילים עיקריים
- Integrated hardware crypto/hash engine (לעומתSTM32F429VGT6)
- Highest-density F4 in mainstream line (לעומתSTM32F429VGT6)
- 1 MB Flash at lower cost vs 2 MB F427/F437 (לעומתSTM32F437IIT6)
הערות תכנון
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).
מידע על תאימות
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.