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    STM32F102R4T6A

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    Mainstream USB Access line, Arm Cortex-M3 MCU with 16 Kbytes of Flash memory, 48 MHz CPU, USB, FS
    Learn More about STM32F102R4T6A

    Quantity $ per Unit Savings
    1 - 9$5.960%
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    100 - 249$4.3926%
    250 - 499$4.1630%
    500$3.7337%
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    Parameter NameParameter Value
    Supply Voltage Min Volt2.0
    Supply Voltage Max Volt3.6
    Operating Temp Min Celsius-40.0
    Operating Temp Max Celsius85.0
    CoreArm Cortex-M3
    ECCN US3A991.a.2
    ECCN EUNEC
    Packing TypeTray
    RoHs compliantEcopack2
    GradeIndustrial
    Package NameLQFP 64 10x10x1.4 mm

    The STM32F102xx medium-density USB access line incorporates the high-performance Arm® Cortex®-M3 32-bit RISC core operating at a 48 MHz frequency, high-speed embedded memories (Flash memory of 16 or 32 Kbytes and SRAM of 4 or 6 Kbytes), and an extensive range of enhanced peripherals and I/Os connected to two APB buses. All devices offer standard communication interfaces (one I2C, one SPI, one USB and two USARTs), one 12-bit ADC and two general-purpose 16-bit timers.


    The STM32F102xx family operates in the –40 to +85 °C temperature range, from a 2.0 to 3.6 V power supply. A comprehensive set of power-saving mode allows the design of low-power applications.


    The STM32F102xx medium-density USB access line is delivered in the LQFP48 7 × 7 mm and LQFP64 10 × 10 mm packages.


    The STM32F102xx medium-density USB access line microcontrollers are suitable for a wide range of applications.

    Key features
    • Core: Arm® 32-bit Cortex®-M3 CPU
      • 48 MHz maximum frequency, 1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 WS memory access
      • Single-cycle multiplication and hardware division
    • Memories
      • 16 or 32 Kbytes of Flash memory
      • 4 or 6 Kbytes of SRAM
    • Clock, reset and supply management
      • 2.0 to 3.6 V application supply and I/Os
      • POR, PDR and programmable voltage detector (PVD)
      • 4 to 16 MHz crystal oscillator
      • Internal 8 MHz factory-trimmed RC
      • Internal 40 kHz RC
      • PLL for CPU clock
      • 32 kHz oscillator for RTC with calibration
    • Low power
      • Sleep, Stop and Standby modes
      • VBAT supply for RTC and backup registers
    • Debug mode
      • Serial wire debug (SWD) and JTAG interfaces
    • DMA
      • 7-channel DMA controller
      • Peripherals supported: timers, ADC, SPIs, I2Cs and USARTs
    • 1 × 12-bit, 1.2 µs A/D converter (up to 16 channels)
      • Conversion range: 0 to 3.6 V
      • Temperature sensor
    • Up to 51 fast I/O ports
      • 37/51 I/Os all mappable on 16 external interrupt vectors and almost all 5 V-tolerant
    • Up to five timers
      • Two 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter
      • 2 watchdog timers (Independent and Window)
      • SysTick timer: 24-bit downcounter
    • Up to five communication interfaces
      • One I2C interface (SMBus/PMBus)
      • Two USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
      • One SPI (12 Mbit/s)
      • One USB 2.0 full speed interface
    • CRC calculation unit, 96-bit unique ID
    • ECOPACK packages