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Microcontrollers and Processors / Microcontrollers / STM8S903K3U3TR
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STM8S903K3U3TR by: STMicroelectronics

Mainstream Application specific line 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM

Part Details for STM8S903K3U3TR by STMicroelectronics

Results Overview of STM8S903K3U3TR by STMicroelectronics

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STM8S903K3U3TR Information

STM8S903K3U3TR by STMicroelectronics is a Microcontroller.
Microcontrollers are under the broader part category of Microcontrollers and Processors.

Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.

Price & Stock for STM8S903K3U3TR

Part # Distributor Description Stock Price Buy
DISTI # STM8S903K3U3TR-ND
DigiKey IC MCU 8BIT 8KB FLASH 32UFQFPN Min Qty: 3000 Lead time: 10 Weeks Container: Tape & Reel (TR) Temporarily Out of Stock
  • 3,000 $1.1419
$1.1419 Buy Now
DISTI # STM8S903K3U3TR
Avnet Americas MCU 8-bit STM8S STM8 CISC 8KB Flash 3.3V/5V 32-Pin UFQFPN EP T/R - Tape and Reel (Alt: STM8S903K3U3T... R) more RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 10 Weeks, 0 Days Container: Reel 0
  • 3,000 $1.1304
  • 6,000 $1.1247
  • 12,000 $1.1190
  • 18,000 $1.1133
  • 24,000 $1.1076
$1.1076 / $1.1304 Buy Now
DISTI # 511-STM8S903K3U3TR
Mouser Electronics 8-bit Microcontrollers - MCU 8BIT Ultralow MCU 8KB Flash 1KB RAM RoHS: Compliant 0
  • 3,000 $1.1400
  • 6,000 $1.1100
$1.1100 / $1.1400 Order Now
DISTI # STM8S903K3U3TR
Avnet Silica MCU 8bit STM8S STM8 CISC 8KB Flash 33V5V 32Pin UFQFPN EP TR (Alt: STM8S903K3U3TR) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 11 Weeks, 0 Days Silica - 0
Buy Now
DISTI # STM8S903K3U3TR
EBV Elektronik MCU 8bit STM8S STM8 CISC 8KB Flash 33V5V 32Pin UFQFPN EP TR (Alt: STM8S903K3U3TR) RoHS: Compliant Min Qty: 3000 Package Multiple: 3000 Lead time: 11 Weeks, 0 Days EBV - 0
Buy Now

Part Details for STM8S903K3U3TR

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STM8S903K3U3TR Part Data Attributes

Parametric Data
STM8S903K3U3TR STMicroelectronics
Buy Now Datasheet
Compare Parts:
STM8S903K3U3TR STMicroelectronics Mainstream Application specific line 8-bit MCU with 8 Kbytes Flash, 16 MHz CPU, integrated EEPROM
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Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer STMICROELECTRONICS
Part Package Code QFN
Package Description UFQFPN-32
Pin Count 32
Manufacturer Package Code UFQFPN
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.31.00.01
Factory Lead Time 10 Weeks
Samacsys Manufacturer STMicroelectronics
Has ADC YES
Address Bus Width
Bit Size 8
Clock Frequency-Max 16 MHz
DAC Channels NO
DMA Channels NO
External Data Bus Width
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
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED
Width 5 mm
uPs/uCs/Peripheral ICs Type MICROCONTROLLER

STM8S903K3U3TR Related Parts

STM8S903K3U3TR Frequently Asked Questions (FAQ)

  • 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.