STM32F105VCT7 - 72MHz Cortex-M3 MCU 256KB Flash | STMicroelectronics
MPN: STM32F105VCT7 ✓ פעילSTM32F105VCT7 סקירה
An MCU (microcontroller unit) is a single-chip computer containing a processor core, program memory, data memory, and integrated peripherals. The Cortex-M3 core is a 32-bit RISC architecture designed by ARM for embedded applications, offering deterministic interrupt handling, hardware division, and Thumb-2 instruction set support for high code density. The STM32F105 sits in ST's connectivity line positioned above the STM32F103 performance line and below the STM32F107, distinguished by USB OTG full-speed and CAN interfaces but without on-chip Ethernet MAC (which is exclusive to the F107 series).
Key features include 256 KB of embedded Flash with read-while-write support, 64 KB SRAM, 80 general-purpose I/O pins, two 12-bit ADCs with up to 16 channels, two 12-bit DACs, ten general-purpose timers, two I2C, three SPI, five USART, one USB OTG full-speed, two CAN 2.0B interfaces, and an SDIO interface. The internal 8 MHz RC oscillator with PLL provides the system clock, and the device supports 2.0 V to 3.6 V operating voltage.
Typical applications include industrial control, USB peripherals, CAN gateways, point-of-sale terminals, motor control interfaces, PLCs, home appliances, and any USB-device-class peripheral needing CAN connectivity. The wide peripheral set and LQFP-100 footprint make it a versatile choice for human-machine interface (HMI) panels, low-cost Ethernet bridges (using external PHY+MAC), and USB-to-CAN bridges.
When designing with this part, allocate decoupling capacitors near each VDD pin and route the HSE crystal traces symmetrically with short lengths to minimize EMI. The '7' suffix indicates the industrial temperature grade (-40C to +105C), suitable for most non-automotive applications.
This page synthesizes distributor pricing, drop-in alternatives from the STM32F105/107 family, and practical PCB design notes not consolidated in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור STM32F105VCT7 — 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 STM32F105VCT7 (אותו גורם צורה וטביעת רגל) — שונים ב Timers, ADC, Package, DAC, Operating Temperature.
STM32F107VCT7
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
STM32F105VCT6
✅ Drop-Inצור קשר לקבלת מחיר
STM32F105VCT7TR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
STM32F103VCT6
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←GD32F303VCT6
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
STM32F105VCT7 דירוגים מרביים ומאפיינים חשמליים
| Core | ARM Cortex-M3 32-bit RISC |
| תדר שעון מקסימלי | 72 MHz |
| Program Memory (Flash) | 256 KB (256K x 8) |
| RAM | 64 KB |
| Number of I/O Pins | 80 |
| מארז | 100-LQFP (14x14 mm) |
| מתח אספקה | 2.0 V to 3.6 V |
| טמפרטורת פעולה | -40C to +105C (Grade 7) |
| ADC | 2 x 12-bit, up to 16 channels |
| DAC | 2 x 12-bit |
| Timers | 10 (general-purpose + advanced-control) |
| Communication Interfaces | 5 USART, 3 SPI, 2 I2C, 2 CAN, 1 USB OTG FS, 1 SDIO |
| סוג הרכבה | Surface Mount |
| Packaging | Tray |
| סטטוס RoHS | Compliant |
תצורת פינים של STM32F105VCT7
| פין 1 | PE2 — GPIO PE2, TRACECLK (trace clock) |
| פין 2 | PE3 — GPIO PE3, TRACED0 |
| פין 3 | PE4 — GPIO PE4, TRACED1 |
| פין 4 | PE5 — GPIO PE5, TRACED2 |
| פין 5 | PE6 — GPIO PE6, TRACED3 |
| פין 6 | VBAT — Battery supply for RTC and backup registers |
| פין 7 | PC13 — GPIO PC13, TAMPER-RTC (anti-tamper / RTC) |
| פין 8 | PC14 — GPIO PC14, OSC32_IN (32.768 kHz crystal) |
| פין 9 | PC15 — GPIO PC15, OSC32_OUT (32.768 kHz crystal) |
| פין 10 | VSS_5 — Ground |
| פין 11 | VDD_5 — Digital supply voltage 2.0-3.6 V |
| פין 12 | OSC_IN — External clock input / HSE crystal input |
| פין 13 | OSC_OUT — HSE crystal output |
| פין 14 | NRST — Reset input (active low) |
| פין 15 | PC0 — GPIO PC0, ADC1_IN10 |
| פין 16 | PC1 — GPIO PC1, ADC1_IN11 |
| פין 17 | PC2 — GPIO PC2, ADC1_IN12 |
| פין 18 | PC3 — GPIO PC3, ADC1_IN13 |
| פין 19 | VSSA — Analog ground |
| פין 20 | VREF+ — ADC reference voltage positive |
| פין 21 | VDDA — Analog supply voltage 2.0-3.6 V |
| פין 22 | PA0 — GPIO PA0, WKUP, ADC1_IN0, TIM2_CH1 |
| פין 23 | PA1 — GPIO PA1, ADC1_IN1, TIM2_CH2 |
| פין 24 | PA2 — GPIO PA2, USART2_TX, ADC1_IN2, TIM2_CH3 |
| פין 25 | PA3 — GPIO PA3, USART2_RX, ADC1_IN3, TIM2_CH4 |
| פין 26 | VSS_4 — Ground |
| פין 27 | VDD_4 — Digital supply voltage 2.0-3.6 V |
| פין 28 | PA4 — GPIO PA4, SPI1_NSS, USART2_CK, ADC1_IN4 |
| פין 29 | PA5 — GPIO PA5, SPI1_SCK, ADC1_IN5, DAC_OUT2 |
| פין 30 | PA6 — GPIO PA6, SPI1_MISO, ADC1_IN6, TIM3_CH1, DAC_OUT1 |
| פין 31 | PA7 — GPIO PA7, SPI1_MOSI, ADC1_IN7, TIM3_CH2 |
| פין 32 | PB0 — GPIO PB0, ADC1_IN8, TIM3_CH3 |
| פין 33 | PB1 — GPIO PB1, ADC1_IN9, TIM3_CH4 |
| פין 34 | PB2 — GPIO PB2, BOOT1 |
| פין 35 | VSS_3 — Ground |
| פין 36 | VDD_3 — Digital supply voltage 2.0-3.6 V |
| פין 37 | PE7 — GPIO PE7, TIM1_ETR |
| פין 38 | PE8 — GPIO PE8, TIM1_CH1N |
| פין 39 | PE9 — GPIO PE9, TIM1_CH1 |
| פין 40 | PE10 — GPIO PE10, TIM1_CH2N |
| פין 41 | PE11 — GPIO PE11, TIM1_CH2 |
| פין 42 | PE12 — GPIO PE12, TIM1_CH3N |
| פין 43 | PE13 — GPIO PE13, TIM1_CH3 |
| פין 44 | PE14 — GPIO PE14, TIM1_CH4 |
| פין 45 | PE15 — GPIO PE15, TIM1_BKIN |
| פין 46 | PB10 — GPIO PB10, I2C2_SCL, USART3_TX |
| פין 47 | PB11 — GPIO PB11, I2C2_SDA, USART3_RX |
| פין 48 | VSS_2 — Ground |
| פין 49 | VDD_2 — Digital supply voltage 2.0-3.6 V |
| פין 50 | PB12 — GPIO PB12, SPI2_NSS, I2C2_SMBAI |
| פין 51 | PB13 — GPIO PB13, SPI2_SCK, USART3_CK |
| פין 52 | PB14 — GPIO PB14, SPI2_MISO, TIM1_CH2N |
| פין 53 | PB15 — GPIO PB15, SPI2_MOSI, TIM1_CH3N |
| פין 54 | PD8 — GPIO PD8, USART3_TX |
| פין 55 | PD9 — GPIO PD9, USART3_RX |
| פין 56 | PD10 — GPIO PD10 |
| פין 57 | PD11 — GPIO PD11 |
| פין 58 | PD12 — GPIO PD12, TIM4_CH1 |
| פין 59 | PD13 — GPIO PD13, TIM4_CH2 |
| פין 60 | PD14 — GPIO PD14, TIM4_CH3 |
| פין 61 | PD15 — GPIO PD15, TIM4_CH4 |
| פין 62 | VSS_1 — Ground |
| פין 63 | VDD_1 — Digital supply voltage 2.0-3.6 V |
| פין 64 | PC6 — GPIO PC6, TIM8_CH1, SDIO_D6 |
| פין 65 | PC7 — GPIO PC7, TIM8_CH2, SDIO_D7 |
| פין 66 | PC8 — GPIO PC8, TIM8_CH3, SDIO_D0 |
| פין 67 | PC9 — GPIO PC9, TIM8_CH4, SDIO_D1 |
| פין 68 | PA8 — GPIO PA8, USART1_CK, TIM1_CH1, MCO |
| פין 69 | PA9 — GPIO PA9, USART1_TX, TIM1_CH2 |
| פין 70 | PA10 — GPIO PA10, USART1_RX, TIM1_CH3 |
| פין 71 | PA11 — GPIO PA11, USB_DM, CAN1_RX |
| פין 72 | PA12 — GPIO PA12, USB_DP, CAN1_TX |
| פין 73 | PA13 — GPIO PA13, JTMS, SWDIO |
| פין 74 | VSS_6 — Ground |
| פין 75 | VDD_6 — Digital supply voltage 2.0-3.6 V |
| פין 76 | PA14 — GPIO PA14, JTCK, SWDCLK |
| פין 77 | PA15 — GPIO PA15, JTDI, TIM2_CH1 |
| פין 78 | PC10 — GPIO PC10, UART4_TX, SDIO_D2 |
| פין 79 | PC11 — GPIO PC11, UART4_RX, SDIO_D3 |
| פין 80 | PC12 — GPIO PC12, UART5_TX, SDIO_CK |
| פין 81 | PD0 — GPIO PD0, CAN1_RX, OSC_IN (remap) |
| פין 82 | PD1 — GPIO PD1, CAN1_TX, OSC_OUT (remap) |
| פין 83 | PD2 — GPIO PD2, TIM3_ETR, SDIO_CMD |
| פין 84 | PD3 — GPIO PD3, USART2_CTS |
| פין 85 | PD4 — GPIO PD4, USART2_RTS |
| פין 86 | PD5 — GPIO PD5, USART2_TX |
| פין 87 | PD6 — GPIO PD6, USART2_RX |
| פין 88 | PD7 — GPIO PD7, USART2_CK |
| פין 89 | PB3 — GPIO PB3, JTDO, TIM2_CH2, SPI1_SCK (remap) |
| פין 90 | PB4 — GPIO PB4, NJTRST, TIM3_CH1, SPI1_MISO (remap) |
| פין 91 | PB5 — GPIO PB5, TIM3_CH2, SPI1_MOSI (remap), I2C1_SMBAI |
| פין 92 | PB6 — GPIO PB6, I2C1_SCL, TIM4_CH1, USART1_TX |
| פין 93 | PB7 — GPIO PB7, I2C1_SDA, TIM4_CH2, USART1_RX |
| פין 94 | BOOT0 — Boot mode selection (0=main flash, 1=system memory bootloader) |
| פין 95 | PB8 — GPIO PB8, TIM4_CH3, CAN1_RX (remap) |
| פין 96 | PB9 — GPIO PB9, TIM4_CH4, CAN1_TX (remap) |
| פין 97 | PE0 — GPIO PE0, TIM4_ETR |
| פין 98 | PE1 — GPIO PE1 |
| פין 99 | VSS_7 — Ground |
| פין 100 | VDD_7 — Digital supply voltage 2.0-3.6 V |
יישומים טיפוסיים
STM32F105VCT7 מתאים עבור 6 יישוםs: USB-to-CAN Industrial Bridge, Human-Machine Interface (HMI) Panel Controller, USB Barcode Scanner / HID Peripheral, Industrial Control PLC Module, Motor Control Interface Board, Medical Patient Monitoring Data Logger.
USB-to-CAN Industrial Bridge
The STM32F105VCT7's USB OTG full-speed peripheral combined with dual CAN 2.0B controllers (bxCAN) makes it ideal for USB-to-CAN gateway modules used in industrial automation, automotive diagnostics, and CANopen networks. The Cortex-M3 core handles USB CDC class enumeration and CAN frame transmission with deterministic latency, while the 64 KB SRAM buffers CAN traffic bursts. The 256 KB Flash is sufficient for USB stack (e.g., LibUSB) and CANopen/CANFestival protocols. Placed on a small PCB with USB Type-B connector and CAN transceiver (e.g., TJA1050), the part delivers a compact bridge solution operating at 72 MHz with 12 Mbps USB and 1 Mbit/s CAN simultaneously.
מומלץ
Human-Machine Interface (HMI) Panel Controller
The 100-pin LQFP package provides 80 GPIO pins, ample for driving TFT displays, keypads, status LEDs, and external peripherals in HMI panels. The STM32F105VCT7's two 12-bit ADCs support touch-screen digitizer scanning, while the SPI and SDIO peripherals connect to display controllers and microSD storage. Running at 72 MHz, the Cortex-M3 executes FreeRTOS-based UI frameworks smoothly with the 64 KB SRAM accommodating frame buffers. Designers typically pair the MCU with an external TFT controller over SPI and use the FSMC-less GPIO bit-banging for parallel LCD interfaces up to QVGA resolution.
מומלץ
USB Barcode Scanner / HID Peripheral
USB OTG full-speed with on-chip PHY enables direct USB device, host, or dual-role operation without external transceivers, ideal for barcode scanners, RFID readers, and HID peripherals. The STM32F105VCT7 runs USB HID class firmware at 72 MHz with minimal CPU overhead, leaving the 64 KB SRAM and 256 KB Flash available for application code, decode libraries, and buffer storage. The 12 Mbps USB FS bandwidth accommodates keyboard, mouse, barcode wedge, and custom HID reports with sub-1 ms latency. Designers can integrate a USB Type-C interface directly using PA11/PA12 pins with proper ESD protection.
מומלץ
Industrial Control PLC Module
With dual CAN, five USARTs, three SPI, and two I2C interfaces, the STM32F105VCT7 serves as the main processor for compact PLC modules and industrial control boards. The Cortex-M3 at 72 MHz executes IEC 61131-3 runtimes or ladder-logic interpreters, while the 80 GPIO pins drive relays, optocouplers, and isolated digital I/O. The wide 2.0-3.6 V supply tolerance accommodates industrial 24 V systems stepped down to 3.3 V via isolated DC-DC converters. The 105C operating temperature (Grade 7) supports factory-floor cabinets without additional cooling.
מומלץ
Motor Control Interface Board
The STM32F105VCT7's ten timers (including one advanced-control timer with complementary PWM outputs) provide ample PWM channels for brushless DC (BLDC) and stepper motor control interface boards. The 12-bit ADCs sample current and back-EMF signals at up to 1 MSPS, while the Cortex-M3 executes field-oriented control (FOC) algorithms at 72 MHz. Designers typically pair the MCU with external gate drivers (e.g., ST L6234) and use the CAN peripherals for multi-axis communication. The 64 KB SRAM limits FOC to single-axis or basic dual-axis implementations.
מומלץ
Medical Patient Monitoring Data Logger
Medical-grade patient monitoring peripherals (pulse oximeters, thermometers, glucose meters) leverage the STM32F105VCT7's USB OTG for data transfer to PCs, dual CAN for hospital network connectivity, and SDIO for local data storage on microSD cards. The 256 KB Flash stores firmware with embedded USB stack, while the 64 KB SRAM buffers continuous monitoring data. The Cortex-M3 deterministic interrupt response (12-cycle tail-chaining) ensures accurate sensor sampling timing. The -40C to +105C temperature range supports battery-powered portable medical devices.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור STM32F105VCT7 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | STM32F107VCT7 | STM32F105VCT6 | STM32F105VCT7TR | STM32F103VCT6 | GD32F303VCT6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice |
| Package | LQFP-100 (14x14 mm) | LQFP-100 (14x14) - same | LQFP-100 (14x14) - same | LQFP-100 (14x14) - same | LQFP-100 (14x14) - same | LQFP-100 (14x14) - same |
| Core | Cortex-M3 @ 72 MHz | Cortex-M3 @ 72 MHz | Cortex-M3 @ 72 MHz | Cortex-M3 @ 72 MHz | Cortex-M3 @ 72 MHz | Cortex-M3 @ 120 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 48 KB | 48 KB |
| USB | USB OTG FS | USB OTG FS | USB OTG FS | USB OTG FS | USB FS (no OTG) | USB FS (no OTG) |
| CAN | 2 x CAN 2.0B | 2 x CAN 2.0B | 2 x CAN 2.0B | 2 x CAN 2.0B | 1 x CAN 2.0B | 1 x CAN 2.0B |
| Ethernet MAC | No | Yes (10/100 MII/RMII) | No | No | No | No |
| Operating Temperature | -40C to +105C | -40C to +105C | -40C to +85C | -40C to +105C | -40C to +85C | -40C to +85C |
מבדילים עיקריים
- USB OTG with dual CAN in connectivity line (לעומתSTM32F103VCT6)
- No on-chip Ethernet MAC for cost optimization (לעומתSTM32F107VCT7)
- Industrial temperature grade with Grade 7 rating (לעומתSTM32F105VCT6)
הערות תכנון
The STM32F105VCT7 has 7 VDD pins (pins 11, 27, 36, 49, 63, 75, 100) and corresponding VSS pins that must each be decoupled with a 100 nF ceramic capacitor placed within 5 mm of each pin. Add a bulk 10 uF tantalum or ceramic capacitor near the regulator output. VDDA requires a separate 10 nF + 1 uF filter; tying VDDA directly to VDD without filtering degrades ADC SNR by 5-10 dB. VBAT must be tied to VDD if RTC/battery backup is unused, never left floating.
Route the HSE crystal traces (OSC_IN/OSC_OUT) symmetrically with traces under 5 mm length and a ground guard ring to prevent crosstalk with switching nodes. For USB, route PA11/PA12 as a 90-ohm differential pair with matched length within 2 mm and a ground plane underneath. The SDIO bus to microSD cards must have series 33-ohm resistors for signal integrity at 48 MHz clock. Keep the BOOT0 pin accessible via a test pad or jumper for firmware recovery.
Do not assume the F105 has Ethernet like the F107 - the F105 has the MAC registers reserved but no Ethernet peripheral. The '7' suffix indicates Grade 7 (-40C to +105C), not 125C - for 125C automotive use, look at STM32F105VCT7B or AEC-Q100 qualified parts. When migrating from STM32F103 firmware, verify bxCAN register initialization - the F105/F107 bxCAN has enhanced filter banks that differ from F103. USB OTG requires the PA11/PA12 pins to be at 3.3 V; lower VDD voltages disable USB PHY.
מידע על תאימות
RoHS compliant per ST product page. Industrial temperature grade (Grade 7, -40C to +105C), NOT AEC-Q100 qualified - for automotive designs use STM32F105VCT7B or qualified variants.
