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| PartNumber | STM8S105K4T3C | STM8S105K4B6 | STM8S105K4 |
| Description | 8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 16 Kbyte | 8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 16 Kbyte | |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | Embedded - Microcontrollers |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | LQFP-32 | SDIP-32 | - |
| Series | STM8S105K4 | STM8S105K4 | STM8S |
| Core | STM8 | STM8 | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Maximum Clock Frequency | 24 MHz | 16 MHz | - |
| Program Memory Size | 16 kB | 16 kB | 16KB (16K x 8) |
| Data RAM Size | 2 kB | 2 kB | - |
| ADC Resolution | 10 bit | 10 bit | - |
| Number of I/Os | 25 I/O | 25 I/O | - |
| Operating Supply Voltage | 2.95 V to 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 125 C | + 85 C | - |
| Program Memory Type | Flash | Flash | FLASH |
| Brand | STMicroelectronics | STMicroelectronics | - |
| Data RAM Type | RAM | - | - |
| Data ROM Size | 16 kB | 1024 B | - |
| Data ROM Type | Flash | EEPROM | - |
| Interface Type | I2C, SPI, UART | I2C, SPI, UART | - |
| Moisture Sensitive | Yes | - | - |
| Number of ADC Channels | 7 | 7 | - |
| Number of Timers/Counters | 8 Timer | 3 Timer | - |
| Processor Series | STM8S10x | STM8S105 | - |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 1500 | 480 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.95 V | 2.9 V | - |
| Unit Weight | 0.027302 oz | 0.143565 oz | - |
| Packaging | - | Tube | Tube |
| Package Case | - | - | 32-SDIP (0.400", 10.16mm) |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 32-SDIP |
| Number of I O | - | - | 25 |
| Speed | - | - | 16MHz |
| EEPROM Size | - | - | 1K x 8 |
| Core Processor | - | - | STM8 |
| RAM Size | - | - | 2K x 8 |
| Peripherals | - | - | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | - | - | I2C, IrDA, LIN, SPI, UART/USART |
| Voltage Supply Vcc Vdd | - | - | 2.95 V ~ 5.5 V |
| Core Size | - | - | 8-Bit |
| Data Converters | - | - | A/D 7x10b |
| Oscillator Type | - | - | Internal |