STM8L151K6U3 STMICROELECTRONICS [STMicroelectronics], STM8L151K6U3 Datasheet - Page 19

• Manufacturer Part Number: STM8L151K6U3
• Description: 8-bit ultralow power MCU, up to 32 KB Flash, 1 KB Data EEPROM RTC, LCD, timers, USART, I2C, SPI, ADC, DAC, comparators
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STM8L151xx, STM8L152xx
3.10
Note:
3.11
3.12
3.13
Digital-to-analog converter (DAC)
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●
●
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●
DAC can be served by DMA1.
Ultralow power comparators
The STM8L15x embeds two comparators (COMP1 and COMP2) sharing the same current
bias and voltage reference. The voltage reference can be internal or external (coming from
an I/O).
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●
The two comparators can be used together to offer a window function. They can wake up
from Halt mode.
System configuration controller and routing interface
The system configuration controller provides the capability to remap some alternate
functions on different I/O ports. TIM4 and ADC1 DMA channels can also be remapped.
The highly flexible routing interface allows application software to control the routing of
different I/Os to the TIM1 timer input captures. It also controls the routing of internal analog
signals to ADC1, COMP1, COMP2, DAC and the internal reference voltage V
it provides a set of registers for efficiently managing a set of dedicated I/Os supporting up to
16 capacitive sensing channels using the ProxSense
Timers
STM8L15xxx devices contain one advanced control timer (TIM1), two 16-bit general
purpose timers (TIM2 and TIM3) and one 8-bit basic timer (TIM4).
All the timers can be served by DMA1.
Table 3
12-bit DAC with output buffer
Synchronized update capability using TIM4
DMA capability
External triggers for conversion
Input reference voltage V
One comparator with fixed threshold (COMP1).
One comparator rail to rail with fast or slow mode (COMP2). The threshold can be one
of the following:
–
–
–
compares the features of the advanced control, general-purpose and basic timers.
DAC output
External I/O
Internal reference voltage or internal reference voltage submultiple (1/4, 1/2, 3/4)
REF+
Doc ID 15962 Rev 2
for better resolution
TM
technology.
Functional overview
REFINT
. Finally,
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