STM32F439IGT6 - 180MHz ARM MCU 1MB Flash LQFP-176 | STMicroelectronics
Référence : STM32F439IGT6 ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 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 Présentation
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.
Alternatives de remplacement direct pour STM32F439IGT6 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec STM32F439IGT6 (même facteur de forme et même empreinte) — différant par Package, Timers, SRAM, Communication Interfaces, ADC.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
STM32F437IIT6
✅ Remplacement direct✓ En stock
$11.84 / unité
Voir la fiche technique →STM32F429VGT6TR
✅ Remplacement direct✓ En stock
$10.85 / unité
Voir la fiche technique →STM32F427VGT6
✅ Remplacement direct✓ En stock
$8.95 / unité
Voir la fiche technique →STM32F429VET6
✅ Remplacement direct✓ En stock
$9.21 / unité
Voir la fiche technique →STM32F427IIT6
✅ Remplacement direct✓ En stock
$11.2 / unité
Voir la fiche technique →STM32F439IGT6 Valeurs maximales et caractéristiques électriques
| Core Architecture | ARM Cortex-M4 with FPU and DSP instructions |
| Fréquence d'horloge maximale | 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 |
| Température de fonctionnement | -40 C to +85 C |
| Boîtier | 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 |
| Nombre de broches | 176 |
| Pitch | 0.5 mm |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de STM32F439IGT6
| Broche 1 | PE02 — GPIO PE2, alt-function TRACECLK |
| Broche 2 | PE03 — GPIO PE3, alt-function TRACED0 |
| Broche 3 | PE04 — GPIO PE4, alt-function TRACED1 |
| Broche 4 | PE05 — GPIO PE5, alt-function TRACED2 |
| Broche 5 | PE06 — GPIO PE6, alt-function TRACED3 |
| Broche 6 | VBAT — RTC backup supply |
| Broche 7 | PC13 — GPIO PC13, RTC TAMPER |
| Broche 8 | PC14 — GPIO PC14, OSC32_IN |
| Broche 9 | PC15 — GPIO PC15, OSC32_OUT |
| Broche 10 | VREF+ — ADC reference voltage |
| Broche 11 | VDDA — Analog supply |
| Broche 12 | PA00 — GPIO PA0, WKUP, ADC_IN0, TIM2_CH1 |
| Broche 13 | PA01 — GPIO PA1, ADC_IN1, TIM2_CH2 |
| Broche 14 | PA02 — GPIO PA2, ADC_IN2, TIM2_CH3 |
| Broche 15 | PA03 — GPIO PA3, ADC_IN3, TIM2_CH4 |
| Broche 16 | VSSA — Analog ground |
| Broche 17 | VDD — Digital supply |
| Broche 18 | PA04 — GPIO PA4, ADC_IN4, DAC_OUT1 |
| Broche 19 | PA05 — GPIO PA5, ADC_IN5, DAC_OUT2 |
| Broche 20 | PA06 — GPIO PA6, ADC_IN6, TIM3_CH1 |
| Broche 21 | PA07 — GPIO PA7, ADC_IN7, TIM3_CH2 |
| Broche 22 | PC04 — GPIO PC4, ADC_IN14 |
| Broche 23 | PC05 — GPIO PC5, ADC_IN15 |
| Broche 24 | PB00 — GPIO PB0, ADC_IN8, TIM3_CH3 |
| Broche 25 | PB01 — GPIO PB1, ADC_IN9, TIM3_CH4 |
| Broche 26 | PB02 — GPIO PB2, BOOT1 |
| Broche 27 | PB10 — GPIO PB10, I2C2_SCL, USART3_TX |
| Broche 28 | PB11 — GPIO PB11, I2C2_SDA, USART3_RX |
| Broche 29 | VCAP_1 — Internal regulator capacitor |
| Broche 30 | VSS — Digital ground |
| Broche 31 | VDD — Digital supply |
| Broche 32 | PB12 — GPIO PB12, SPI2_NSS, I2S2_WS |
| Broche 33 | PB13 — GPIO PB13, SPI2_SCK, I2S2_CK |
| Broche 34 | PB14 — GPIO PB14, SPI2_MISO, TIM12_CH1 |
| Broche 35 | PB15 — GPIO PB15, SPI2_MOSI, I2S2_SD |
| Broche 36 | PC06 — GPIO PC6, TIM3_CH1, USART6_TX |
| Broche 37 | PC07 — GPIO PC7, TIM3_CH2, USART6_RX |
| Broche 38 | PC08 — GPIO PC8, TIM3_CH3, SDIO_D0 |
| Broche 39 | PC09 — GPIO PC9, TIM3_CH4, SDIO_D1 |
| Broche 40 | PA08 — GPIO PA8, TIM1_CH1, USART1_CK, MCO1 |
| Broche 41 | PA09 — GPIO PA9, USART1_TX, TIM1_CH2 |
| Broche 42 | PA10 — GPIO PA10, USART1_RX, TIM1_CH3 |
| Broche 43 | PA11 — GPIO PA11, USB_DM, CAN1_RX |
| Broche 44 | PA12 — GPIO PA12, USB_DP, CAN1_TX |
| Broche 45 | PA13 — GPIO PA13, JTMS-SWDIO |
| Broche 46 | VCAP_2 — Internal regulator capacitor |
| Broche 47 | VSS — Digital ground |
| Broche 48 | VDD — Digital supply |
| Broche 49 | PA14 — GPIO PA14, JTCK-SWCLK |
| Broche 50 | PA15 — GPIO PA15, JTDI, SPI1_NSS, TIM2_CH1 |
| Broche 51 | PC10 — GPIO PC10, UART4_TX, SDIO_D2 |
| Broche 52 | PC11 — GPIO PC11, UART4_RX, SDIO_D3 |
| Broche 53 | PC12 — GPIO PC12, UART5_TX, SDIO_CK |
| Broche 54 | PD00 — GPIO PD0, FSMC_D2, CAN1_RX |
| Broche 55 | PD01 — GPIO PD1, FSMC_D3, CAN1_TX |
| Broche 56 | PD02 — GPIO PD2, TIM3_ETR, UART5_RX, SDIO_CMD |
| Broche 57 | PD03 — GPIO PD3, FSMC_CLK |
| Broche 58 | PD04 — GPIO PD4, FSMC_NOE |
| Broche 59 | PD05 — GPIO PD5, FSMC_NWE |
| Broche 60 | VSS — Digital ground |
| Broche 61 | VDD — Digital supply |
| Broche 62 | PD06 — GPIO PD6, FSMC_NWAIT |
| Broche 63 | PD07 — GPIO PD7, FSMC_NE1, USART2_CK |
| Broche 64 | PG09 — GPIO PG9, FSMC_NE2 |
| Broche 65 | PG10 — GPIO PG10, FSMC_NE3 |
| Broche 66 | PG11 — GPIO PG11, FSMC_NE4 |
| Broche 67 | PG12 — GPIO PG12, FSMC_NE5 |
| Broche 68 | PG13 — GPIO PG13, FSMC_A24 |
| Broche 69 | PG14 — GPIO PG14, FSMC_A25 |
| Broche 70 | VSS — Digital ground |
| Broche 71 | VDD — Digital supply |
| Broche 72 | PG15 — GPIO PG15 |
| Broche 73 | PB03 — GPIO PB3, JTDO-SWO, SPI1_SCK, TIM2_CH2 |
| Broche 74 | PB04 — GPIO PB4, NJTRST, SPI1_MISO, TIM3_CH1 |
| Broche 75 | PB05 — GPIO PB5, I2C1_SMBAI, SPI1_MOSI, TIM3_CH2 |
| Broche 76 | PB06 — GPIO PB6, I2C1_SCL, TIM4_CH1, USART1_TX |
| Broche 77 | PB07 — GPIO PB7, I2C1_SDA, TIM4_CH2, USART1_RX |
| Broche 78 | BOOT0 — Boot mode select |
| Broche 79 | PB08 — GPIO PB8, TIM4_CH3, I2C1_SCL, CAN1_RX |
| Broche 80 | PB09 — GPIO PB9, TIM4_CH4, I2C1_SDA, CAN1_TX |
| Broche 81 | PE00 — GPIO PE0, TIM4_ETR |
| Broche 82 | PE01 — GPIO PE1 |
| Broche 83 | VSS — Digital ground |
| Broche 84 | VDD — Digital supply |
| Broche 85 | PI10 — GPIO PI10, FSMC_NIORD |
| Broche 86 | PI11 — GPIO PI11, FSMC_NIOWR |
| Broche 87 | VSS — Digital ground |
| Broche 88 | VDD — Digital supply |
| Broche 89 | PI12 — GPIO PI12, FSMC_D[20] |
| Broche 90 | PI13 — GPIO PI13, FSMC_D[21] |
| Broche 91 | PI14 — GPIO PI14, FSMC_D[22] |
| Broche 92 | PI15 — GPIO PI15, FSMC_D[23] |
| Broche 93 | VSS — Digital ground |
| Broche 94 | VDD — Digital supply |
| Broche 95 | PG00 — GPIO PG0, FSMC_A10 |
| Broche 96 | PG01 — GPIO PG1, FSMC_A11 |
| Broche 97 | PE07 — GPIO PE7, TIM1_ETR, FSMC_D4 |
| Broche 98 | PE08 — GPIO PE8, TIM1_CH1N, FSMC_D5 |
| Broche 99 | PE09 — GPIO PE9, TIM1_CH1, FSMC_D6 |
| Broche 100 | VSS — Digital ground |
| Broche 101 | VDD — Digital supply |
| Broche 102 | PE10 — GPIO PE10, TIM1_CH2N, FSMC_D7 |
| Broche 103 | PE11 — GPIO PE11, TIM1_CH2, FSMC_D8 |
| Broche 104 | PE12 — GPIO PE12, TIM1_CH3N, FSMC_D9 |
| Broche 105 | PE13 — GPIO PE13, TIM1_CH3, FSMC_D10 |
| Broche 106 | PE14 — GPIO PE14, TIM1_CH4, FSMC_D11 |
| Broche 107 | PE15 — GPIO PE15, TIM1_BKIN, FSMC_D12 |
| Broche 108 | PB10 — GPIO PB10 |
| Broche 109 | PB11 — GPIO PB11 |
| Broche 110 | VCAP_1 — Internal regulator capacitor |
| Broche 111 | VSS — Digital ground |
| Broche 112 | VDD — Digital supply |
| Broche 113 | PB12 — GPIO PB12 |
| Broche 114 | PB13 — GPIO PB13 |
| Broche 115 | PB14 — GPIO PB14 |
| Broche 116 | PB15 — GPIO PB15 |
| Broche 117 | PD08 — GPIO PD8, FSMC_D13, USART3_TX |
| Broche 118 | PD09 — GPIO PD9, FSMC_D14, USART3_RX |
| Broche 119 | PD10 — GPIO PD10, FSMC_D15 |
| Broche 120 | PD11 — GPIO PD11, FSMC_A16, USART3_CTS |
| Broche 121 | PD12 — GPIO PD12, FSMC_A17, TIM4_CH1 |
| Broche 122 | VSS — Digital ground |
| Broche 123 | VDD — Digital supply |
| Broche 124 | PD13 — GPIO PD13, FSMC_A18, TIM4_CH2 |
| Broche 125 | PD14 — GPIO PD14, FSMC_D0, TIM4_CH3 |
| Broche 126 | PD15 — GPIO PD15, FSMC_D1, TIM4_CH4 |
| Broche 127 | PG02 — GPIO PG2, FSMC_A12 |
| Broche 128 | PG03 — GPIO PG3, FSMC_A13 |
| Broche 129 | PG04 — GPIO PG4, FSMC_A14 |
| Broche 130 | PG05 — GPIO PG5, FSMC_A15 |
| Broche 131 | PG06 — GPIO PG6, FSMC_INT2 |
| Broche 132 | PG07 — GPIO PG7, FSMC_INT3, USART6_CK |
| Broche 133 | PG08 — GPIO PG8, FSMC_CLK, USART6_RTS |
| Broche 134 | VSS — Digital ground |
| Broche 135 | VDD — Digital supply |
| Broche 136 | PC06 — GPIO PC6 |
| Broche 137 | PC07 — GPIO PC7 |
| Broche 138 | PC08 — GPIO PC8 |
| Broche 139 | PC09 — GPIO PC9 |
| Broche 140 | PA08 — GPIO PA8 |
| Broche 141 | PA09 — GPIO PA9 |
| Broche 142 | PA10 — GPIO PA10 |
| Broche 143 | PA11 — GPIO PA11 |
| Broche 144 | PA12 — GPIO PA12 |
| Broche 145 | PA13 — GPIO PA13 |
| Broche 146 | VCAP_2 — Internal regulator capacitor |
| Broche 147 | VSS — Digital ground |
| Broche 148 | VDD — Digital supply |
| Broche 149 | PA14 — GPIO PA14 |
| Broche 150 | PA15 — GPIO PA15 |
| Broche 151 | PC10 — GPIO PC10 |
| Broche 152 | PC11 — GPIO PC11 |
| Broche 153 | PC12 — GPIO PC12 |
| Broche 154 | PD00 — GPIO PD0 |
| Broche 155 | PD01 — GPIO PD1 |
| Broche 156 | PD02 — GPIO PD2 |
| Broche 157 | PD03 — GPIO PD3 |
| Broche 158 | PD04 — GPIO PD4 |
| Broche 159 | PD05 — GPIO PD5 |
| Broche 160 | VSS — Digital ground |
| Broche 161 | VDD — Digital supply |
| Broche 162 | PD06 — GPIO PD6 |
| Broche 163 | PD07 — GPIO PD7 |
| Broche 164 | PG09 — GPIO PG9 |
| Broche 165 | PG10 — GPIO PG10 |
| Broche 166 | PG11 — GPIO PG11 |
| Broche 167 | PG12 — GPIO PG12 |
| Broche 168 | PG13 — GPIO PG13 |
| Broche 169 | PG14 — GPIO PG14 |
| Broche 170 | VSS — Digital ground |
| Broche 171 | VDD — Digital supply |
| Broche 172 | PG15 — GPIO PG15 |
| Broche 173 | PB03 — GPIO PB3 |
| Broche 174 | PB04 — GPIO PB4 |
| Broche 175 | PB05 — GPIO PB5 |
| Broche 176 | PB07 — GPIO PB7 |
Applications typiques
STM32F439IGT6 convient pour 7 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32F439IGT6 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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) |
Principaux différenciateurs
- Integrated hardware crypto/hash engine (vs STM32F429VGT6)
- Highest-density F4 in mainstream line (vs STM32F429VGT6)
- 1 MB Flash at lower cost vs 2 MB F427/F437 (vs STM32F437IIT6)
Notes de conception
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).
Informations de conformité
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.