STM32F439IGT6 - 180MHz ARM MCU 1MB Flash LQFP-176 | STMicroelectronics
Teilenummer: STM32F439IGT6 ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 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 Übersicht
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.
Drop-in-Alternativen für STM32F439IGT6 – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit STM32F439IGT6 (gleiche Bauform und Footprint) – abweichend in Package, Timers, SRAM, Communication Interfaces, ADC.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
STM32F437IIT6
✅ Drop-In✓ Auf Lager
$11.84 / Stück
Datenblatt ansehen →STM32F429VGT6TR
✅ Drop-In✓ Auf Lager
$10.85 / Stück
Datenblatt ansehen →STM32F427VGT6
✅ Drop-In✓ Auf Lager
$8.95 / Stück
Datenblatt ansehen →STM32F429VET6
✅ Drop-In✓ Auf Lager
$9.21 / Stück
Datenblatt ansehen →STM32F427IIT6
✅ Drop-In✓ Auf Lager
$11.2 / Stück
Datenblatt ansehen →STM32F439IGT6 Grenzwerte & elektrische Eigenschaften
| Core Architecture | ARM Cortex-M4 with FPU and DSP instructions |
| Maximale Taktfrequenz | 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 |
| Betriebstemperatur | -40 C to +85 C |
| Gehäuse | 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 |
| Pin-Anzahl | 176 |
| Pitch | 0.5 mm |
| Montageart | Surface Mount |
| RoHS-Status | Compliant |
STM32F439IGT6 Pin-Konfiguration
| Pin 1 | PE02 — GPIO PE2, alt-function TRACECLK |
| Pin 2 | PE03 — GPIO PE3, alt-function TRACED0 |
| Pin 3 | PE04 — GPIO PE4, alt-function TRACED1 |
| Pin 4 | PE05 — GPIO PE5, alt-function TRACED2 |
| Pin 5 | PE06 — GPIO PE6, alt-function TRACED3 |
| Pin 6 | VBAT — RTC backup supply |
| Pin 7 | PC13 — GPIO PC13, RTC TAMPER |
| Pin 8 | PC14 — GPIO PC14, OSC32_IN |
| Pin 9 | PC15 — GPIO PC15, OSC32_OUT |
| Pin 10 | VREF+ — ADC reference voltage |
| Pin 11 | VDDA — Analog supply |
| Pin 12 | PA00 — GPIO PA0, WKUP, ADC_IN0, TIM2_CH1 |
| Pin 13 | PA01 — GPIO PA1, ADC_IN1, TIM2_CH2 |
| Pin 14 | PA02 — GPIO PA2, ADC_IN2, TIM2_CH3 |
| Pin 15 | PA03 — GPIO PA3, ADC_IN3, TIM2_CH4 |
| Pin 16 | VSSA — Analog ground |
| Pin 17 | VDD — Digital supply |
| Pin 18 | PA04 — GPIO PA4, ADC_IN4, DAC_OUT1 |
| Pin 19 | PA05 — GPIO PA5, ADC_IN5, DAC_OUT2 |
| Pin 20 | PA06 — GPIO PA6, ADC_IN6, TIM3_CH1 |
| Pin 21 | PA07 — GPIO PA7, ADC_IN7, TIM3_CH2 |
| Pin 22 | PC04 — GPIO PC4, ADC_IN14 |
| Pin 23 | PC05 — GPIO PC5, ADC_IN15 |
| Pin 24 | PB00 — GPIO PB0, ADC_IN8, TIM3_CH3 |
| Pin 25 | PB01 — GPIO PB1, ADC_IN9, TIM3_CH4 |
| Pin 26 | PB02 — GPIO PB2, BOOT1 |
| Pin 27 | PB10 — GPIO PB10, I2C2_SCL, USART3_TX |
| Pin 28 | PB11 — GPIO PB11, I2C2_SDA, USART3_RX |
| Pin 29 | VCAP_1 — Internal regulator capacitor |
| Pin 30 | VSS — Digital ground |
| Pin 31 | VDD — Digital supply |
| Pin 32 | PB12 — GPIO PB12, SPI2_NSS, I2S2_WS |
| Pin 33 | PB13 — GPIO PB13, SPI2_SCK, I2S2_CK |
| Pin 34 | PB14 — GPIO PB14, SPI2_MISO, TIM12_CH1 |
| Pin 35 | PB15 — GPIO PB15, SPI2_MOSI, I2S2_SD |
| Pin 36 | PC06 — GPIO PC6, TIM3_CH1, USART6_TX |
| Pin 37 | PC07 — GPIO PC7, TIM3_CH2, USART6_RX |
| Pin 38 | PC08 — GPIO PC8, TIM3_CH3, SDIO_D0 |
| Pin 39 | PC09 — GPIO PC9, TIM3_CH4, SDIO_D1 |
| Pin 40 | PA08 — GPIO PA8, TIM1_CH1, USART1_CK, MCO1 |
| Pin 41 | PA09 — GPIO PA9, USART1_TX, TIM1_CH2 |
| Pin 42 | PA10 — GPIO PA10, USART1_RX, TIM1_CH3 |
| Pin 43 | PA11 — GPIO PA11, USB_DM, CAN1_RX |
| Pin 44 | PA12 — GPIO PA12, USB_DP, CAN1_TX |
| Pin 45 | PA13 — GPIO PA13, JTMS-SWDIO |
| Pin 46 | VCAP_2 — Internal regulator capacitor |
| Pin 47 | VSS — Digital ground |
| Pin 48 | VDD — Digital supply |
| Pin 49 | PA14 — GPIO PA14, JTCK-SWCLK |
| Pin 50 | PA15 — GPIO PA15, JTDI, SPI1_NSS, TIM2_CH1 |
| Pin 51 | PC10 — GPIO PC10, UART4_TX, SDIO_D2 |
| Pin 52 | PC11 — GPIO PC11, UART4_RX, SDIO_D3 |
| Pin 53 | PC12 — GPIO PC12, UART5_TX, SDIO_CK |
| Pin 54 | PD00 — GPIO PD0, FSMC_D2, CAN1_RX |
| Pin 55 | PD01 — GPIO PD1, FSMC_D3, CAN1_TX |
| Pin 56 | PD02 — GPIO PD2, TIM3_ETR, UART5_RX, SDIO_CMD |
| Pin 57 | PD03 — GPIO PD3, FSMC_CLK |
| Pin 58 | PD04 — GPIO PD4, FSMC_NOE |
| Pin 59 | PD05 — GPIO PD5, FSMC_NWE |
| Pin 60 | VSS — Digital ground |
| Pin 61 | VDD — Digital supply |
| Pin 62 | PD06 — GPIO PD6, FSMC_NWAIT |
| Pin 63 | PD07 — GPIO PD7, FSMC_NE1, USART2_CK |
| Pin 64 | PG09 — GPIO PG9, FSMC_NE2 |
| Pin 65 | PG10 — GPIO PG10, FSMC_NE3 |
| Pin 66 | PG11 — GPIO PG11, FSMC_NE4 |
| Pin 67 | PG12 — GPIO PG12, FSMC_NE5 |
| Pin 68 | PG13 — GPIO PG13, FSMC_A24 |
| Pin 69 | PG14 — GPIO PG14, FSMC_A25 |
| Pin 70 | VSS — Digital ground |
| Pin 71 | VDD — Digital supply |
| Pin 72 | PG15 — GPIO PG15 |
| Pin 73 | PB03 — GPIO PB3, JTDO-SWO, SPI1_SCK, TIM2_CH2 |
| Pin 74 | PB04 — GPIO PB4, NJTRST, SPI1_MISO, TIM3_CH1 |
| Pin 75 | PB05 — GPIO PB5, I2C1_SMBAI, SPI1_MOSI, TIM3_CH2 |
| Pin 76 | PB06 — GPIO PB6, I2C1_SCL, TIM4_CH1, USART1_TX |
| Pin 77 | PB07 — GPIO PB7, I2C1_SDA, TIM4_CH2, USART1_RX |
| Pin 78 | BOOT0 — Boot mode select |
| Pin 79 | PB08 — GPIO PB8, TIM4_CH3, I2C1_SCL, CAN1_RX |
| Pin 80 | PB09 — GPIO PB9, TIM4_CH4, I2C1_SDA, CAN1_TX |
| Pin 81 | PE00 — GPIO PE0, TIM4_ETR |
| Pin 82 | PE01 — GPIO PE1 |
| Pin 83 | VSS — Digital ground |
| Pin 84 | VDD — Digital supply |
| Pin 85 | PI10 — GPIO PI10, FSMC_NIORD |
| Pin 86 | PI11 — GPIO PI11, FSMC_NIOWR |
| Pin 87 | VSS — Digital ground |
| Pin 88 | VDD — Digital supply |
| Pin 89 | PI12 — GPIO PI12, FSMC_D[20] |
| Pin 90 | PI13 — GPIO PI13, FSMC_D[21] |
| Pin 91 | PI14 — GPIO PI14, FSMC_D[22] |
| Pin 92 | PI15 — GPIO PI15, FSMC_D[23] |
| Pin 93 | VSS — Digital ground |
| Pin 94 | VDD — Digital supply |
| Pin 95 | PG00 — GPIO PG0, FSMC_A10 |
| Pin 96 | PG01 — GPIO PG1, FSMC_A11 |
| Pin 97 | PE07 — GPIO PE7, TIM1_ETR, FSMC_D4 |
| Pin 98 | PE08 — GPIO PE8, TIM1_CH1N, FSMC_D5 |
| Pin 99 | PE09 — GPIO PE9, TIM1_CH1, FSMC_D6 |
| Pin 100 | VSS — Digital ground |
| Pin 101 | VDD — Digital supply |
| Pin 102 | PE10 — GPIO PE10, TIM1_CH2N, FSMC_D7 |
| Pin 103 | PE11 — GPIO PE11, TIM1_CH2, FSMC_D8 |
| Pin 104 | PE12 — GPIO PE12, TIM1_CH3N, FSMC_D9 |
| Pin 105 | PE13 — GPIO PE13, TIM1_CH3, FSMC_D10 |
| Pin 106 | PE14 — GPIO PE14, TIM1_CH4, FSMC_D11 |
| Pin 107 | PE15 — GPIO PE15, TIM1_BKIN, FSMC_D12 |
| Pin 108 | PB10 — GPIO PB10 |
| Pin 109 | PB11 — GPIO PB11 |
| Pin 110 | VCAP_1 — Internal regulator capacitor |
| Pin 111 | VSS — Digital ground |
| Pin 112 | VDD — Digital supply |
| Pin 113 | PB12 — GPIO PB12 |
| Pin 114 | PB13 — GPIO PB13 |
| Pin 115 | PB14 — GPIO PB14 |
| Pin 116 | PB15 — GPIO PB15 |
| Pin 117 | PD08 — GPIO PD8, FSMC_D13, USART3_TX |
| Pin 118 | PD09 — GPIO PD9, FSMC_D14, USART3_RX |
| Pin 119 | PD10 — GPIO PD10, FSMC_D15 |
| Pin 120 | PD11 — GPIO PD11, FSMC_A16, USART3_CTS |
| Pin 121 | PD12 — GPIO PD12, FSMC_A17, TIM4_CH1 |
| Pin 122 | VSS — Digital ground |
| Pin 123 | VDD — Digital supply |
| Pin 124 | PD13 — GPIO PD13, FSMC_A18, TIM4_CH2 |
| Pin 125 | PD14 — GPIO PD14, FSMC_D0, TIM4_CH3 |
| Pin 126 | PD15 — GPIO PD15, FSMC_D1, TIM4_CH4 |
| Pin 127 | PG02 — GPIO PG2, FSMC_A12 |
| Pin 128 | PG03 — GPIO PG3, FSMC_A13 |
| Pin 129 | PG04 — GPIO PG4, FSMC_A14 |
| Pin 130 | PG05 — GPIO PG5, FSMC_A15 |
| Pin 131 | PG06 — GPIO PG6, FSMC_INT2 |
| Pin 132 | PG07 — GPIO PG7, FSMC_INT3, USART6_CK |
| Pin 133 | PG08 — GPIO PG8, FSMC_CLK, USART6_RTS |
| Pin 134 | VSS — Digital ground |
| Pin 135 | VDD — Digital supply |
| Pin 136 | PC06 — GPIO PC6 |
| Pin 137 | PC07 — GPIO PC7 |
| Pin 138 | PC08 — GPIO PC8 |
| Pin 139 | PC09 — GPIO PC9 |
| Pin 140 | PA08 — GPIO PA8 |
| Pin 141 | PA09 — GPIO PA9 |
| Pin 142 | PA10 — GPIO PA10 |
| Pin 143 | PA11 — GPIO PA11 |
| Pin 144 | PA12 — GPIO PA12 |
| Pin 145 | PA13 — GPIO PA13 |
| Pin 146 | VCAP_2 — Internal regulator capacitor |
| Pin 147 | VSS — Digital ground |
| Pin 148 | VDD — Digital supply |
| Pin 149 | PA14 — GPIO PA14 |
| Pin 150 | PA15 — GPIO PA15 |
| Pin 151 | PC10 — GPIO PC10 |
| Pin 152 | PC11 — GPIO PC11 |
| Pin 153 | PC12 — GPIO PC12 |
| Pin 154 | PD00 — GPIO PD0 |
| Pin 155 | PD01 — GPIO PD1 |
| Pin 156 | PD02 — GPIO PD2 |
| Pin 157 | PD03 — GPIO PD3 |
| Pin 158 | PD04 — GPIO PD4 |
| Pin 159 | PD05 — GPIO PD5 |
| Pin 160 | VSS — Digital ground |
| Pin 161 | VDD — Digital supply |
| Pin 162 | PD06 — GPIO PD6 |
| Pin 163 | PD07 — GPIO PD7 |
| Pin 164 | PG09 — GPIO PG9 |
| Pin 165 | PG10 — GPIO PG10 |
| Pin 166 | PG11 — GPIO PG11 |
| Pin 167 | PG12 — GPIO PG12 |
| Pin 168 | PG13 — GPIO PG13 |
| Pin 169 | PG14 — GPIO PG14 |
| Pin 170 | VSS — Digital ground |
| Pin 171 | VDD — Digital supply |
| Pin 172 | PG15 — GPIO PG15 |
| Pin 173 | PB03 — GPIO PB3 |
| Pin 174 | PB04 — GPIO PB4 |
| Pin 175 | PB05 — GPIO PB5 |
| Pin 176 | PB07 — GPIO PB7 |
Typische Anwendungen
STM32F439IGT6 ist geeignet für 7 Anwendungs: 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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
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.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für STM32F439IGT6 – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | 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) |
Wichtigste Unterscheidungsmerkmale
- 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)
Designhinweise
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).
Compliance-Informationen
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.