# STM8S903K3U3 (Component) ## Description STM8S903K3U3 UFQFPN-32_L5.0-W5.0-P0.50-TL LCSC Part Number: C1338944 JLCPCB Part Class: Extended Part Manufactured by ST(意法半导体) ## Component Details - **Owner:** lcsc - **Created:** 11/4/2024 - **Last Updated:** 11/4/2024 - **Visibility:** Public - **LCSC Part Number:** C1338944 - **Package or Case Code:** UFQFPN-32_L5.0-W5.0-P0.50-TL - **Manufacturer Part Number:** STM8S903K3U3 - **Manufacturer Name:** ST(意法半导体) - **JLCPCB Part Class:** Extended Part ## Distributor Pricing (qty 1) *Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.* | Distributor | Unit Price (qty 1) | Stock | |------------|--------------------|-------| | [Digi-Key](https://www.digikey.com/en/products/detail/stmicroelectronics/STM8S903K3U3/2529382) | $2.23 | 0 | | [LCSC](https://www.lcsc.com/product-detail/C1338944.html) | $1.155 | 0 | | [Mouser](https://www.mouser.com/ProductDetail/STMicroelectronics/STM8S903K3U3?qs=RF4ygd%252Bc9XrFXa43qQjWnw%3D%3D) | N/A | N/A | - **Manufacturer:** STMicroelectronics - **MPN:** STM8S903K3U3 - **Mount Type:** PCB - **Package / Case Code:** Other - **Pin Count:** 33 ## Pins | Pin | Name | Type | |-----|------|------| | 1 | NRST | | | 2 | OSCIN/PA1 | | | 3 | OSCOUT/PA2 | | | 4 | VSS | | | 5 | VCAP | | | 6 | VDD | | | 7 | UART1_TX[SPI_NSS]TIM5_CH3/PA3 | | | 8 | UART1_RXPF4 | | | 9 | PB7 | | | 10 | PB6 | | | 11 | [TIM1_BKIN]IIC_SDA/(T)PB5 | | | 12 | [ADC_ETR]IIC_SCL/(T)PB4 | | | 13 | TIM1_ETR/AIN3/(HS)PB3 | | | 14 | TIM1_CH3N/AIN2/(HS)PB2 | | | 15 | TIM1_CH2N/AIN1/(HS)PB1 | | | 16 | TIM1_CH1N/AIN0/(HS)PB0 | | | 17 | PE5(HS)/SPI_NSS[TIM1_CH1N] | | | 18 | PC1(HS)/TIM1_CH1/UART1_CK[TIM1_CH2N] | | | 19 | PC2(HS)/TIM1_CH2[TIM1_CH3N] | | | 20 | PC3(HS)/TIM1_CH3/TLI[TIM1_CH1N] | | | 21 | PC4(HS)/TIM1_CH4/CLK_CCO[AIN2][TIM1_CH2N] | | | 22 | PC5(HS)/SPI_SCK[TIM5_CH1] | | | 23 | PC6(HS)/SPI_MOSI[TIM1_CH1] | | | 24 | PC7(HS)/SPI_MISO[TIM1_CH2] | | | 25 | PD0(HS)/TIM1_BKIN[CLK_CCO] | | | 26 | PD1(HS)/SWIM | | | 27 | PD2(HS)[AIN3][TIM5_CH3] | | | 28 | PD3(HS)/AIN5/TIM5_CH2/ADC_ETR | | | 29 | PD4(HS)/BEEP/TIM5_CH1[UART1_CK] | | | 30 | PD5/AIN5/UART1_TX | | | 31 | PD6/AIN6/UART1_RX | | | 32 | PD7/TLI[TIM1_CH4] | | | EXP | EP | | --- *Generated from [https://www.flux.ai/lcsc/stm8s903k3u3~50p3](https://www.flux.ai/lcsc/stm8s903k3u3~50p3)*