STM32L152-EVAL STMicroelectronics, STM32L152-EVAL Datasheet - Page 21
STM32L152-EVAL
Manufacturer Part Number
STM32L152-EVAL
Description
BOARD EVALUATION FOR STM32L
Manufacturer
STMicroelectronics
Type
MCUr
Specifications of STM32L152-EVAL
New! Us2012 Catalog Page
STM8L-Discovery_STM32L152-EVAL
Contents
Board
Processor To Be Evaluated
STM32L1xxx
Interface Type
UART
Operating Supply Voltage
2 V to 3.6 V
For Use With/related Products
STM32L
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-10842
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STM32L151xx, STM32L152xx
3.12
3.13
3.14
3.14.1
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).
●
●
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 µA typical).
Routing interface
This interface controls the internal routing of I/Os to TIM2, TIM3, TIM4 and to the
comparator and reference voltage output.
Timers and watchdogs
The ultralow power STM32L15xxx devices include six general-purpose timers, two basic
timers and two watchdog timers.
Table 3
Table 3.
General-purpose timers (TIM2, TIM3, TIM4, TIM9, TIM10 and TIM11)
There are six synchronizable general-purpose timers embedded in the STM32L15xxx
devices (see
TIM10,
TIM11
Timer
TIM2,
TIM3,
TIM6,
TIM4
TIM9
TIM7
one comparator with fixed threshold
one comparator with rail-to-rail inputs, fast or slow mode. The threshold can be one of
the following:
–
–
–
compares the features of the general-purpose and basic timers.
resolution
DAC output
External I/O
Internal reference voltage (V
Counter
16-bit
16-bit
16-bit
16-bit
Timer feature comparison
Table 3
Counter
up/down
for differences).
down,
type
Up,
Up
Up
Up
Doc ID 17659 Rev 4
Any integer
Any integer
Any integer
Any integer
and 65536
and 65536
and 65536
and 65536
between 1
between 1
between 1
between 1
Prescaler
factor
REFINT
DMA request
generation
) or V
Yes
Yes
No
No
REFINT
Capture/compare
submultiple (1/4, 1/2, 3/4)
channels
4
2
1
0
Functional overview
Complementary
outputs
No
No
No
No
21/107
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