STM32F103xx performance line family incorporates the high-performance ARM® Cortex™-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded memories, and an extensive range of enhanced I/Os and peripherals connected to two APB buses. All devices offer two 12-bit ADCs, three general-purpose 16-bit timers plus one PWM timer, as well as standard and advanced communication interfaces: up to two I 2 Cs and SPIs, three USARTs, an USB and a CAN. The STM32F103xx low-density performance line family operates from a 2.0 to 3.6 V power supply. It is available in both the –40 to +85 °C temperature range and the –40 to +105 °C extended temperature range. A comprehensive set of power-saving mode allows the design of low-power applications.
Specs
With respect to the STM32F103C8T6 , It has less Flash and SRAM, one less timer, and one less Serial.
| STM32F103C6T6 | STM32F103C8T6 | |
|---|---|---|
| Flash | 32K | 64K |
| RAM | 10K | 20K |
| Timer | 3 (No timer 4) | 4 |
| Serial port | 2 (No serial port 3) | 3 |
| IC | 1 | 2 |
| SPI | 1 | 2+ |
- ARM 32-bit Cortex™-M3 CPU Core
- 72 MHz maximum frequency,1.25 DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access
- Single-cycle multiplication and hardware division
- Memories
- 16 or 32 Kbytes of Flash memory
- 6 or 10 Kbytes of SRAM
- Clock, reset and supply management
- 2.0 to 3.6 V application supply and I/Os
- POR, PDR, and programmable voltage detector (PVD)
- 4-to-16 MHz crystal oscillator
- Internal 8 MHz factory-trimmed RC
- Internal 40 kHz RC
- PLL for CPU clock
- 32 kHz oscillator for RTC with calibration
- Low power
- Sleep, Stop and Standby modes
- VBAT supply for RTC and backup registers
- 2 x 12-bit, 1 μs A/D converters (up to 16 channels)
- Conversion range: 0 to 3.6 V
- Dual-sample and hold capability
- Temperature sensor
- DMA
- 7-channel DMA controller
- Peripherals supported: timers, ADC, SPIs, I2Cs and USARTs
- Up to 51 fast I/O ports
- 26/37/51 I/Os, all mappable on 16 external interrupt vectors and almost all 5 V-tolerant
- Debug mode
- Serial wire debug (SWD) & JTAG interfaces
- 6 timers
- Two 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
- 16-bit, motor control PWM timer with dead-time generation and emergency stop
- 2 watchdog timers (Independent and Window)
- SysTick timer 24-bit downcounter
- 6 communication interfaces
- 1 x I2C interface (SMBus/PMBus)
- 2 × USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
- 1 × SPI (18 Mbit/s)
- CAN interface (2.0B Active)
- USB 2.0 full-speed interface
- CRC calculation unit, 96-bit unique ID
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