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STM8S903K3U3TR - STMicroelectronics

Description: 16 MHz STM8S 8-bit MCU, up to 8 Kbytes Flash, 1 Kbyte RAM, 640 bytes EEPROM,10-bit ADC, 2 timers, UART, SPI, I²C

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STM8S903K3U3TR - STMicroelectronics PCB footprint - Quad Flat No-Lead - Quad Flat No-Lead - LQFP32-+
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3D Models
STM8S903K3U3TR - STMicroelectronics  - 3D model - Quad Flat No-Lead - LQFP32-+
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STM8S903K3U3TR Details

  • Manufacturer Part Number:

    STM8S903K3U3TR

  • Brand Name:

    STMicroelectronics

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    QFN

  • Package Description:

    UFQFPN-32

  • Pin Count:

    32

  • Manufacturer Package Code:

    UFQFPN

  • Country Of Origin:

    Philippines

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.31.00.15

  • Factory Lead Time:

    10 Weeks

  • Manufacturer:

    STMicroelectronics

  • YTEOL:

    9

  • Has ADC:

    YES

  • Bit Size:

    8

  • Boundary Scan:

    YES

  • Clock Frequency-Max:

    16 MHz

  • DAC Channels:

    NO

  • DMA Channels:

    NO

  • JESD-30 Code:

    S-XQCC-N32

  • JESD-609 Code:

    e3

  • Length:

    5 mm

  • Moisture Sensitivity Level:

    3

  • Number of I/O Lines:

    28

  • Number of Terminals:

    32

  • On Chip Program ROM Width:

    32

  • Operating Temperature-Max:

    125 °C

  • Operating Temperature-Min:

    -40 °C

  • PWM Channels:

    YES

  • Package Body Material:

    UNSPECIFIED

  • Package Code:

    HVQCCN

  • Package Equivalence Code:

    LCC32,.2SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • RAM (bytes):

    1024

  • ROM (words):

    2048

  • ROM Programmability:

    FLASH

  • Seated Height-Max:

    0.6 mm

  • Speed:

    16 MHz

  • Supply Current-Max:

    4.75 mA

  • Supply Voltage-Max:

    5.5 V

  • Supply Voltage-Min:

    2.95 V

  • Supply Voltage-Nom:

    3.3 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    AUTOMOTIVE

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    NO LEAD

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    5 mm

  • uPs/uCs/Peripheral ICs Type:

    MICROCONTROLLER

STM8S903K3U3TR Frequently Asked Questions (FAQs)

  • The maximum clock frequency that can be used with the internal oscillator is 16 MHz, but it's recommended to use a maximum of 12 MHz to ensure stability and accuracy.
  • To configure the watchdog timer, you need to set the WDP bits in the WAFR register to select the timeout period, and then enable the watchdog by setting the WDGA bit in the WAFR register. You can also use the IWDG (Independent Watchdog) instead of the WWDG (Window Watchdog) for a more flexible configuration.
  • No, the UART in asynchronous mode is limited to a maximum baud rate of 115200 bps. If you need a higher baud rate, you need to use the UART in synchronous mode or use a different communication interface like SPI or I2C.
  • You can implement a delay function using the timers by configuring the timer to count up to a specific value, and then using the timer interrupt to trigger the delay. For example, you can use Timer 2 to generate a delay by setting the ARR register to the desired delay value, and then enabling the timer interrupt.
  • No, the ADC is limited to a maximum sampling frequency of 10 kHz. If you need to convert an analog signal with a higher frequency, you need to use an external ADC or a different MCU with a faster ADC.

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STM8S903K3U3TR Overview

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About STMicroelectronics

STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and markets a broad range of integrated circuits (ICs), discrete devices, and other electronic components. STMicroelectronics offers a diverse portfolio of semiconductor products covering a wide range of applications and industries. Their product categories include microcontrollers, analog and mixed-signal ICs, MEMS (Micro-Electro-Mechanical Systems) sensors, power management ICs, RF (Radio Frequency) transceivers, aut

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