8-bit CISC microcontroller featuring 16KB Flash program memory and 2KB RAM. This surface-mount device operates at up to 16 MHz, offering 34 programmable I/Os and four timers. Connectivity includes I2C, SPI, and UART interfaces. Housed in a 44-pin VFQFPN EP package with an exposed pad, it supports a supply voltage range of 3.3V to 5V and operates from -40°C to 125°C.
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Stmicroelectronics STM8S105S4U3TR technical specifications.
| Basic Package Type | Non-Lead-Frame SMT |
| Package Family Name | QFN |
| Package/Case | VFQFPN EP |
| Package Description | Very Fine Quad Flat Package No Lead, Exposed Pad |
| Lead Shape | No Lead |
| Pin Count | 44 |
| PCB | 44 |
| Package Length (mm) | 10 |
| Package Width (mm) | 10 |
| Package Height (mm) | 1.4 |
| Seated Plane Height (mm) | 1.6(Max) |
| Pin Pitch (mm) | 0.8 |
| Package Material | Plastic |
| Mounting | Surface Mount |
| Jedec | MS-026BCB |
| Family Name | STM8S |
| Data Bus Width | 8bit |
| Instruction Set Architecture | CISC |
| Maximum Clock Rate | 16MHz |
| Maximum CPU Frequency | 16MHz |
| Device Core | STM8 |
| Program Memory Type | Flash |
| Program Memory Size | 16KB |
| RAM Size | 2KB |
| Number of Programmable I/Os | 34 |
| Core Architecture | STM8 |
| Programmability | Yes |
| Number of Timers | 4 |
| Interface Type | I2C/SPI/UART |
| CAN | 0 |
| I2C | 1 |
| SPI | 1 |
| Ethernet | 0 |
| UART | 1 |
| USART | 0 |
| USB | 0 |
| I2S | 0 |
| Max Operating Supply Voltage | 5.5V |
| Min Operating Temperature | -40°C |
| Max Operating Temperature | 125°C |
| ADC Channels | 9 |
| Number of ADCs | Single |
| Cage Code | SCR76 |
| HTS Code | 8542310001 |
| Schedule B | 8542310000 |
| Automotive | No |
| AEC Qualified | No |
| PPAP | No |
| Radiation Hardening | No |
| RoHS Versions | 2002/95/EC |
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