STMicroelectronics STM32F1 series STM32F100RCT7B, ARM Cortex-M3, 32-Bit Single-Core, 24MHz, 256KB Flash, 24K x 8 RAM, 64-LQFP, -40°C ~ 85°C.
| Parameter | Value |
|---|---|
| Series | STM32F1 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 2V ~ 3.6V |
| Operating temperature | -40°C ~ 85°C (TA) |
| Speed | 24MHz |
| Package | Tray |
| RAM size | 24K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, PDR, POR, PVD, PWM, Temp Sensor, WDT |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 51 |
| Core processor | ARM® Cortex®-M3 |
| Case | 64-LQFP |
| Data converters | A/D 16x12b; D/A 2x12b |
| Program memory size | 256KB (256K x 8) |
256 KB of Flash and 24 KB of RAM set a clear firmware budget. The 24 MHz Cortex-M3 core handles moderate control loops and communication stacks; if your application needs USB or runs a real-time OS with several tasks, check whether the RAM floor is enough. The built-in ADC and DAC offload external converters, which simplifies the analog front-end and saves board space.
The suffix 'T7' vs 'T6' indicates the temperature grade. Both share the same 24 MHz core, 256 KB Flash, 24 KB RAM, and 64-LQFP package. The 'T7' is the more common, cost-optimized option for applications that do not require the higher 105°C ceiling.
If your design's maximum ambient temperature stays at or below 85°C, yes — the STM32F100RCT7B is pin-compatible and functionally identical to the STM32F100RCT6B, with the same memory and peripheral map. The only difference is the upper temperature limit (85°C vs 105°C). Confirm your thermal profile before swapping.
No — the STM32F100 value line does not include a USB peripheral. If USB is required, the STM32F103 series is the typical pin-compatible upgrade path.