参数资料
型号: STM32L151RBH6DTR
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PBGA64
封装: 5 X 5 MM, 0.50 MM PITCH, ROHS COMPLIANT, TFBGA-64
文件页数: 21/106页
文件大小: 1417K
代理商: STM32L151RBH6DTR
STM32L151xx, STM32L152xx
Functional overview
Doc ID 17659 Rev 1
3.12
Ultralow power comparators and reference voltage
The STM32L15xxx embeds two comparators sharing the same current bias and reference
voltage. The reference voltage can be internal or external (coming from an I/O).
one comparator with fixed threshold
one comparator with rail-to-rail inputs, fast or slow mode. The threshold can be one of
the following:
DAC output
External I/O
Internal reference voltage (VREFINT) or VREFINT submultiple (1/4, 1/2, 3/4)
Both comparators can wake up from Stop mode, and be combined into a window
comparator.
The internal reference voltage is available externally via a low power / low current output
buffer (driving current capability of 1 A typical).
3.13
Routing interface
This interface controls the internal routing of I/Os to TIM2, TIM3, TIM4 and to the
comparator and reference voltage output.
3.14
Timers and watchdogs
The ultralow power STM32L15xxx devices include six general-purpose timers, two basic
timers and two watchdog timers.
Table 3 compares the features of the general-purpose and basic timers.
3.14.1
General-purpose timers (TIM2, TIM3, TIM4, TIM9, TIM10 and TIM11)
There are six synchronizable general-purpose timers embedded in the STM32L15xxx
devices (see Table 3 for differences).
Table 3.
Timer feature comparison
Timer
Counter
resolution
Counter
type
Prescaler
factor
DMA request
generation
Capture/compare
channels
Complementary
outputs
TIM2,
TIM3,
TIM4
16-bit
Up,
down,
up/down
Any integer
between 1
and 65536
Yes
4
No
TIM9
16-bit
Up
Any integer
between 1
and 65536
No
2
No
TIM10,
TIM11
16-bit
Up
Any integer
between 1
and 65536
No
1
No
TIM6,
TIM7
16-bit
Up
Any integer
between 1
and 65536
Yes
0
No
相关PDF资料
PDF描述
STM32L151CBT6 32-BIT, FLASH, 32 MHz, RISC MICROCONTROLLER, PQFP48
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