The STM8S903K3 is an 8-bit microcontroller featuring a 16 MHz STM8 core with a Harvard architecture and a 3-stage pipeline. It includes 8 Kbytes of Flash program memory, 1 Kbyte of RAM, and 640 bytes of EEPROM, with a data retention of 20 years at 55 ¬8C after 10,000 cycles. The device operates within a voltage range of 2.95 to 5.5 V and supports various clock sources, including a low-power crystal oscillator and internal RC oscillators. This microcontroller is equipped with a nested interrupt controller capable of handling 32 interrupts and offers up to 28 I/O pins in a 32-pin LQFP package. It features multiple timers, including a 16-bit advanced control timer and a general-purpose timer, as well as a 10-bit ADC with up to 7 multiplexed channels. Communication interfaces include UART, SPI, and I2C, making it suitable for a wide range of applications. The STM8S903K3 is designed for low power consumption, with several power management modes available.
IC MCU 8BIT 8KB FLASH 32LQFP
Manufacturer: STMicroelectronics
Win Source Part Number: 031423-STM8S903K3T6C
Packaging: Tray
Core Processor: STM8
Number of I/O: 28
Program Memory Size: 8KB (8K x 8)
Program Memory Type: FLASH
EEPROM Size: 640 x 8
Data Converters: A/D 7x10b
Family Name: STM8S903
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C (TA)
Dimension: 32-LQFP
Speed(Frequency): 16MHz
Supply Voltage - Operating: 2.95 V to 5.5 V
Part Core Size: 8-Bit
Data RAM Size: 1K x 8
Alternative Parts (Cross-Reference): PCA3352CH; M37540M4V-443GP#X2; M37540M4T-XXXGP; M37540M4V-470GP;
Introduction Date: June 03, 2009
ECCN: EAR99
Country of Origin: Malaysia
Estimated EOL Date: 2029
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 66 pct.
Supply and Demand Status: Balance
STM8 STM8S Microcontroller IC 8-Bit 16MHz 8KB (8K x 8) FLASH
8-bit MCU, 8KB Flash, 16MHz, LQFP, 28 I/O, I2C, SPI, UART Product overview: STM8S903K3T6C from STMicroelectronics is an Embedded Microcontroller MCU for industrial control, IoT devices, embedded automation, motor control, metering, and low-power board designs. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 8-bit, 8KB, 16MHz. Search-friendly keywords include microcontroller, MCU, embedded control, ARM Cortex, Flash memory, low-power, 8-bit, 8KB, 16MHz, Embedded Microcontroller MCU. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 685-STM8S903K3T6C can be used for catalog matching and distributor lookup.
STM8 STM8S Microcontroller IC 8-Bit 16MHz 8KB (8K x 8) FLASH
8-bit Microcontrollers - MCU Performance LN 8-Bit 24 MHz STM8S MCU
MCU, 8BIT, STM8, 16MHZ, LQFP-32; Product Range:STM8 Family STM8S Series Microcontrollers; CPU Speed:16MHz; Program Memory Size:8KB; RAM Memory Size:1KB; No. of Pins:32Pins; MCU Case Style:LQFP; No. of I/O s:28I/O s; Embedded RoHS Compliant: Yes
IC MCU 8BIT 8KB FLASH 32LQFP
IC MCU 8BIT 8KB FLASH 32LQFP
| ODG (Origin Data Global) | Win Source Electronics | DigiKey | ERSAELECTRONICS PTE. LTD. | Quarktwin Technology Ltd. | VAST STOCK CO., LIMITED | Newark, An Avnet Company | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) | Microcontrollers (MCU) |
| Product Number | STM8S903K3T6C | 031423-STM8S903K3T6C | 497-8944-ND | 685-STM8S903K3T6C | STM8S903K3T6C | STM8S903K3T6C | 24AC5473 | STM8S903K3T6C | STM8S903K3T6C |
| Product Name | Microcontrollers | Embedded - Embedded - Microcontrollers - STM8S903K3T6C | Microcontrollers | 8-bit 8KB 16MHz Embedded Microcontroller MCU | Microcontrollers | 8-bit Microcontrollers - MCU | Mcu, 8Bit, Stm8, 16Mhz, Lqfp-32; Product Range Stmicroelectronics | Embedded - Microcontrollers | Integrated Circuits (ICs) - Embedded - Microcontrollers |
| Data Bus | 8 Bit | 8 Bit | 8 Bit | 8 Bit | 8 Bit; 8-Bit | 8 Bit | 8 Bit; 8-Bit | 8 Bit | |
| Clock Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | |||
| RAM | 1 KB | 8 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | ||
| ROM Type | Flash; FLASH | Flash; FLASH | Flash | Flash; FLASH | |||||
| Supply Voltage | 2.95 to 5.5 volts | 2.95 to 5.5 volts | 2.95 to 5.5 volts | 2.95 to 5.5 volts | 5.5 volts |
