STMicroelectronics STM32F105xx Connectivity Line MCUs
The STM32F105xx connectivity line microcontrollers incorporate the high-performance Arm® Cortex®-M3 32-bit RISC core operating at a 72 MHz frequency, high-speed embedded memories (Flash memory up to 256 Kbytes and SRAM up to 64 Kbytes), and an extensive range of enhanced I/Os and peripherals connected to two APB buses. All devices offer two 12-bit ADCs, four general-purpose 16-bit timers plus a PWM timer, as well as standard and advanced communication interfaces: up to two I2Cs, three SPIs, two I2Ss, five USARTs, a USB OTG FS, and two CANs.
Features
- Arm 32-bit Cortex-M3 CPU core
- 72MHz maximum frequency, 1.25DMIPS/MHz (Dhrystone 2.1) performance at 0 wait state memory access
- Single-cycle multiplication and hardware division
- Memories
- 64Kbytes to 256Kbytes of Flash memory
- 64Kbytes of general-purpose SRAM
- Clock, reset, and supply management
- 0V to 3.6V application supply and I/Os
- POR, PDR, and programmable voltage detector (PVD)
- 3MHz to 25MHz crystal oscillator
- Internal 8MHz factory-trimmed RC
- Internal 40kHz RC with calibration
- 32kHz oscillator for RTC with calibration
- Low power
- Sleep, Stop, and Standby modes
- VBAT supply for RTC and backup registers
- 2x 12-bit, 1µs A/D converters (16 channels)
- 0V to 3.6V conversion range
- Sample and hold capability
- Temperature sensor
- up to 2MSPS in interleaved mode
- 2x 12-bit D/A converters
- 12-channel DMA controller
- Supported peripherals include timers, ADCs, DAC, I2Ss, SPIs, I2Cs and USARTs
- Debug mode
- Serial wire debug (SWD) and JTAG interfaces
- Cortex-M3 Embedded Trace Macrocell™
- Up to 80 fast I/O ports
- 51/80 I/Os
- All mappable on 16 external interrupt vectors and almost all 5 V-tolerant
- CRC calculation unit, 96-bit unique ID
- 12-channel DMA controller
- Up to 10 timers with pinout remap capability
- Up to four 16-bit timers, each with up to 4 IC/OC/PWM or pulse counter and quadrature (incremental) encoder input
- 2x 16-bit motor control PWM timer with dead-time generation and emergency stop
- 2x watchdog timers (Independent and Window)
- SysTick timer: a 24-bit downcounter
- 2x 16-bit basic timers to drive the DAC
- Up to 14 communication interfaces with pinout remap capability
- Up to 2x I2C interfaces (SMBus/PMBus)
- Up to 5 USARTs (ISO 7816 interface, LIN, IrDA capability, modem control)
- Up to 3 SPIs (18Mbit/s), 2 with a multiplexed I2S interface that offers audio class accuracy via advanced PLL schemes
- 2x CAN interfaces (2.0B Active) with 512 bytes of dedicated SRAM
- USB 0 full-speed device/host/OTG controller with on-chip PHY that supports HNP/SRP/ID with 1.25Kbytes of dedicated SRAM
- 10/100 Ethernet MAC with dedicated DMA and SRAM (4 Kbytes): IEEE1588 hardware support, MII/RMII available on all packages
Applications
- Motor drives and application control
- Medical and handheld equipment
- Industrial applications
- Programmable logic controllers (PLCs)
- Inverters
- Printers and scanners
- Alarm systems
- Video intercom
- HVAC
- Home audio equipment
Block Diagram
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Published: 2019-09-05
| Updated: 2024-03-13