Datasheet
Table Of Contents
- Table 1. Device summary
- 1 Introduction
- 2 Description
- 2.1 Device overview
- 2.2 Full compatibility throughout the family
- 2.3 Overview
- Figure 1. STM32F105xx and STM32F107xx connectivity line block diagram
- 2.3.1 ARM® Cortex™-M3 core with embedded Flash and SRAM
- 2.3.2 Embedded Flash memory
- 2.3.3 CRC (cyclic redundancy check) calculation unit
- 2.3.4 Embedded SRAM
- 2.3.5 Nested vectored interrupt controller (NVIC)
- 2.3.6 External interrupt/event controller (EXTI)
- 2.3.7 Clocks and startup
- 2.3.8 Boot modes
- 2.3.9 Power supply schemes
- 2.3.10 Power supply supervisor
- 2.3.11 Voltage regulator
- 2.3.12 Low-power modes
- 2.3.13 DMA
- 2.3.14 RTC (real-time clock) and backup registers
- 2.3.15 Timers and watchdogs
- 2.3.16 I²C bus
- 2.3.17 Universal synchronous/asynchronous receiver transmitters (USARTs)
- 2.3.18 Serial peripheral interface (SPI)
- 2.3.19 Inter-integrated sound (I2S)
- 2.3.20 Ethernet MAC interface with dedicated DMA and IEEE 1588 support
- 2.3.21 Controller area network (CAN)
- 2.3.22 Universal serial bus on-the-go full-speed (USB OTG FS)
- 2.3.23 GPIOs (general-purpose inputs/outputs)
- 2.3.24 Remap capability
- 2.3.25 ADCs (analog-to-digital converters)
- 2.3.26 DAC (digital-to-analog converter)
- 2.3.27 Temperature sensor
- 2.3.28 Serial wire JTAG debug port (SWJ-DP)
- 2.3.29 Embedded Trace Macrocell™
- 3 Pinouts and pin description
- 4 Memory mapping
- 5 Electrical characteristics
- 5.1 Parameter conditions
- 5.2 Absolute maximum ratings
- 5.3 Operating conditions
- 5.3.1 General operating conditions
- 5.3.2 Operating conditions at power-up / power-down
- 5.3.3 Embedded reset and power control block characteristics
- 5.3.4 Embedded reference voltage
- 5.3.5 Supply current characteristics
- Table 13. Maximum current consumption in Run mode, code with data processing running from Flash
- Table 14. Maximum current consumption in Run mode, code with data processing running from RAM
- Table 15. Maximum current consumption in Sleep mode, code running from Flash or RAM
- Table 16. Typical and maximum current consumptions in Stop and Standby modes
- Figure 10. Typical current consumption on VBAT with RTC on vs. temperature at different VBAT values
- Figure 11. Typical current consumption in Stop mode with regulator in Run mode versus temperature at different VDD values
- Figure 12. Typical current consumption in Stop mode with regulator in Low-power mode versus temperature at different VDD values
- Figure 13. Typical current consumption in Standby mode versus temperature at different VDD values
- Table 17. Typical current consumption in Run mode, code with data processing running from Flash
- Table 18. Typical current consumption in Sleep mode, code running from Flash or RAM
- Table 19. Peripheral current consumption
- 5.3.6 External clock source characteristics
- Table 20. High-speed external user clock characteristics
- Table 21. Low-speed external user clock characteristics
- Figure 14. High-speed external clock source AC timing diagram
- Figure 15. Low-speed external clock source AC timing diagram
- Table 22. HSE 3-25 MHz oscillator characteristics
- Figure 16. Typical application with an 8 MHz crystal
- Table 23. LSE oscillator characteristics (fLSE = 32.768 kHz)
- Figure 17. Typical application with a 32.768 kHz crystal
- 5.3.7 Internal clock source characteristics
- 5.3.8 PLL, PLL2 and PLL3 characteristics
- 5.3.9 Memory characteristics
- 5.3.10 EMC characteristics
- 5.3.11 Absolute maximum ratings (electrical sensitivity)
- 5.3.12 I/O current injection characteristics
- 5.3.13 I/O port characteristics
- Table 36. I/O static characteristics
- Figure 18. Standard I/O input characteristics - CMOS port
- Figure 19. Standard I/O input characteristics - TTL port
- Figure 20. 5 V tolerant I/O input characteristics - CMOS port
- Figure 21. 5 V tolerant I/O input characteristics - TTL port
- Table 37. Output voltage characteristics
- Table 38. I/O AC characteristics
- Figure 22. I/O AC characteristics definition
- 5.3.14 NRST pin characteristics
- 5.3.15 TIM timer characteristics
- 5.3.16 Communications interfaces
- Table 41. I2C characteristics
- Figure 24. I2C bus AC waveforms and measurement circuit
- Table 42. SCL frequency (fPCLK1= 36 MHz.,VDD = 3.3 V)
- Table 43. SPI characteristics
- Figure 25. SPI timing diagram - slave mode and CPHA = 0
- Figure 26. SPI timing diagram - slave mode and CPHA = 1(1)
- Figure 27. SPI timing diagram - master mode(1)
- Table 44. I2S characteristics
- Figure 28. I2S slave timing diagram (Philips protocol)(1)
- Figure 29. I2S master timing diagram (Philips protocol)(1)
- Table 45. USB OTG FS startup time
- Table 46. USB OTG FS DC electrical characteristics
- Figure 30. USB OTG FS timings: definition of data signal rise and fall time
- Table 47. USB OTG FS electrical characteristics
- Table 48. Ethernet DC electrical characteristics
- Figure 31. Ethernet SMI timing diagram
- Table 49. Dynamic characteristics: Ethernet MAC signals for SMI
- Figure 32. Ethernet RMII timing diagram
- Table 50. Dynamic characteristics: Ethernet MAC signals for RMII
- Figure 33. Ethernet MII timing diagram
- Table 51. Dynamic characteristics: Ethernet MAC signals for MII
- 5.3.17 12-bit ADC characteristics
- Table 52. ADC characteristics
- Table 53. RAIN max for fADC = 14 MHz
- Table 54. ADC accuracy - limited test conditions
- Table 55. ADC accuracy
- Figure 34. ADC accuracy characteristics
- Figure 35. Typical connection diagram using the ADC
- Figure 36. Power supply and reference decoupling (VREF+ not connected to VDDA)
- Figure 37. Power supply and reference decoupling (VREF+ connected to VDDA)
- 5.3.18 DAC electrical specifications
- 5.3.19 Temperature sensor characteristics
- 6 Package characteristics
- 6.1 Package mechanical data
- Figure 39. LFBGA100 - 10 x 10 mm low profile fine pitch ball grid array package outline
- Table 58. LFBGA100 - 10 x 10 mm low profile fine pitch ball grid array package mechanical data
- Figure 40. Recommended PCB design rules (0.80/0.75 mm pitch BGA)
- Figure 41. LQFP100, 100-pin low-profile quad flat package outline
- Figure 42. Recommended footprint(1)
- Table 59. LQPF100 – 100-pin low-profile quad flat package mechanical data
- Figure 43. LQFP64 – 64 pin low-profile quad flat package outline
- Figure 44. Recommended footprint(1)
- Table 60. LQFP64 – 64 pin low-profile quad flat package mechanical data
- 6.2 Thermal characteristics
- 6.1 Package mechanical data
- 7 Part numbering
- Appendix A Application block diagrams
- Revision history
Description STM32F105xx, STM32F107xx
16/104 Doc ID 15274 Rev 6
● Standby mode
The Standby mode is used to achieve the lowest power consumption. The internal
voltage regulator is switched off so that the entire 1.8 V domain is powered off. The
PLL, the HSI RC and the HSE crystal oscillators are also switched off. After entering
Standby mode, SRAM and register contents are lost except for registers in the Backup
domain and Standby circuitry.
The device exits Standby mode when an external reset (NRST pin), an IWDG reset, a
rising edge on the WKUP pin, or an RTC alarm occurs.
Note: The RTC, the IWDG, and the corresponding clock sources are not stopped by entering Stop
or Standby mode.
2.3.13 DMA
The flexible 12-channel general-purpose DMAs (7 channels for DMA1 and 5 channels for
DMA2) are able to manage memory-to-memory, peripheral-to-memory and memory-to-
peripheral transfers. The two DMA controllers support circular buffer management,
removing the need for user code intervention when the controller reaches the end of the
buffer.
Each channel is connected to dedicated hardware DMA requests, with support for software
trigger on each channel. Configuration is made by software and transfer sizes between
source and destination are independent.
The DMA can be used with the main peripherals: SPI, I
2
C, USART, general-purpose, basic
and advanced control timers TIMx, DAC, I
2
S and ADC.
In the STM32F107xx, there is a DMA controller dedicated for use with the Ethernet (see
Section 2.3.20: Ethernet MAC interface with dedicated DMA and IEEE 1588 support for
more information).
2.3.14 RTC (real-time clock) and backup registers
The RTC and the backup registers are supplied through a switch that takes power either on
V
DD
supply when present or through the V
BAT
pin. The backup registers are forty-two 16-bit
registers used to store 84 bytes of user application data when V
DD
power is not present.
They are not reset by a system or power reset, and they are not reset when the device
wakes up from the Standby mode.
The real-time clock provides a set of continuously running counters which can be used with
suitable software to provide a clock calendar function, and provides an alarm interrupt and a
periodic interrupt. It is clocked by a 32.768 kHz external crystal, resonator or oscillator, the
internal low power RC oscillator or the high-speed external clock divided by 128. The
internal low-speed RC has a typical frequency of 40 kHz. The RTC can be calibrated using
an external 512 Hz output to compensate for any natural quartz deviation. The RTC features
a 32-bit programmable counter for long term measurement using the Compare register to
generate an alarm. A 20-bit prescaler is used for the time base clock and is by default
configured to generate a time base of 1 second from a clock at 32.768 kHz.
For more information, please refer to AN2604: “STM32F101xx and STM32F103xx RTC
calibration”, available from www.st.com.