STM32F105V8 STMicroelectronics, STM32F105V8 Datasheet - Page 17

• Manufacturer Part Number: STM32F105V8
• Description: Mainstream Connectivity line, ARM Cortex-M3 MCU with 64 Kbytes Flash, 72 MHz CPU, CAN, USB 2.0 OTG
• Manufacturer: STMicroelectronics

Specifications of STM32F105V8

• Core: ARM 32-bit Cortex™-M3 CPU
• Conversion Range: 0 to 3.6 V
• Dma: 12-channel DMA controller
• Supported Peripherals: timers, ADCs, DAC, I2Ss, SPIs, I2Cs and USARTs
• Systick Timer: a 24-bit downcounter
• 10/100 Ethernet Mac With Dedicated Dma And Sram (4 Kbytes): IEEE1588 hardware support, MII/RMII available on all packages

STM32F105xx, STM32F107xx
2.3.15
Timers and watchdogs
The STM32F105xx and STM32F107xx devices include an advanced-control timer, four
general-purpose timers, two basic timers, two watchdog timers and a SysTick timer.
Table 4
Table 4.
Advanced-control timer (TIM1)
The advanced control timer (TIM1) can be seen as a three-phase PWM multiplexed on 6
channels. It has complementary PWM outputs with programmable inserted dead-times. It
can also be seen as a complete general-purpose timer. The 4 independent channels can be
used for:
●
●
●
●
If configured as a standard 16-bit timer, it has the same features as the TIMx timer. If
configured as the 16-bit PWM generator, it has full modulation capability (0-100%).
The counter can be frozen in debug mode.
Many features are shared with those of the standard TIM timers which have the same
architecture. The advanced control timer can therefore work together with the TIM timers via
the Timer Link feature for synchronization or event chaining.
General-purpose timers (TIMx)
There are up to 4 synchronizable standard timers (TIM2, TIM3, TIM4 and TIM5) embedded
in the STM32F105xx and STM32F107xx connectivity line devices. These timers are based
on a 16-bit auto-reload up/down counter, a 16-bit prescaler and feature 4 independent
channels each for input capture/output compare, PWM or one pulse mode output. This
gives up to 16 input captures / output compares / PWMs on the largest packages. They can
work together with the Advanced Control timer via the Timer Link feature for synchronization
or event chaining.
The counter can be frozen in debug mode.
(TIM2,
Timer
TIM3,
TIM4,
TIM5)
TIM6,
TIM1
TIM7
TIMx
Input capture
Output compare
PWM generation (edge or center-aligned modes)
One-pulse mode output
compares the features of the general-purpose and basic timers.
resolution
Counter
16-bit
16-bit
16-bit
Timer feature comparison
Counter
up/down
up/down
down,
down,
type
Up,
Up,
Up
Doc ID 15274 Rev 6
Any integer
Any integer
Any integer
and 65536
and 65536
and 65536
between 1
between 1
between 1
Prescaler
factor
DMA request
generation
Yes
Yes
Yes
Capture/compare
channels
4
4
0
Complementary
Description
outputs
Yes
No
No
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