STM32F101RG STMicroelectronics, STM32F101RG Datasheet - Page 19

• Manufacturer Part Number: STM32F101RG
• Description: Mainstream Access line, ARM Cortex-M3 MCU with 1 Mbyte Flash, 36 MHz CPU
• Manufacturer: STMicroelectronics

Specifications of STM32F101RG

• Conversion Range: 0 to 3.6 V
• Peripherals Supported: timers, ADC, DAC, SPIs, I2Cs and USARTs
• Systick Timer: a 24-bit downcounter

STM32F101xF, STM32F101xG
2.3.17
2.3.18
Table 4.
TIM2, TIM3,
TIM4, TIM5
TIM9, TIM12
TIM10, TIM11,
TIM13, TIM14
TIM6, TIM7
Timer
STM32F101xF and STM32F101xG timer feature comparison
RTC (real-time clock) and backup registers
The RTC and the backup registers are supplied through a switch that takes power either on
V
registers used to store 84 bytes of user application data when V
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.
Timers and watchdogs
The XL-density STM32F101xx access line devices include up to ten general-purpose
timers, two basic timers, two watchdog timers and a SysTick timer.
Table 4: STM32F101xF and STM32F101xG timer feature comparison
features of the general-purpose and basic timers.
General-purpose timers (TIMx)
There are 10 synchronizable general-purpose timers embedded in the STM32F101xF and
STM32F101xG XL-density access line devices (see
●
DD
resolution
Counter
supply when present or through the V
TIM2, TIM3, TIM4, TIM5
There are up to 4 synchronizable general-purpose timers (TIM2, TIM3, TIM4 and TIM5)
embedded in the STM32F101xF and STM32F101xG access 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
16-bit
16-bit
16-bit
16-bit
Up, down,
Counter
up/down
type
Up
Up
Up
Any integer between
Any integer between
Any integer between
Any integer between
Prescaler factor
1 and 65536
1 and 65536
1 and 65536
1 and 65536
Doc ID 17143 Rev 2
BAT
generation
pin. The backup registers are forty-two 16-bit
request
DMA
Yes
Yes
No
No
Table 4
Capture/compare
for differences).
channels
DD
4
2
1
0
power is not present.
compares the
Complementary
Description
outputs
No
No
No
No
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