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STM32L151x8 Datasheet(PDF) 18 Page - STMicroelectronics

Part # STM32L151x8
Description  Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC
PDF  133 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STM32L151x8 Datasheet(HTML) 18 Page - STMicroelectronics

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Functional overview
STM32L151x6/8/B STM32L152x6/8/B
18/133
DocID17659 Rev 12
3.2
ARM® Cortex®-M3 core with MPU
The ARM® Cortex®-M3 processor is the industry leading processor for embedded systems.
It has been developed to provide a low-cost platform that meets the needs of MCU
implementation, with a reduced pin count and low-power consumption, while delivering
outstanding computational performance and an advanced system response to interrupts.
The ARM® Cortex®-M3 32-bit RISC processor features exceptional code-efficiency,
delivering the high-performance expected from an ARM core in the memory size usually
associated with 8- and 16-bit devices.
The memory protection unit (MPU) improves system reliability by defining the memory
attributes (such as read/write access permissions) for different memory regions. It provides
up to eight different regions and an optional predefined background region.
Owing to its embedded ARM core, the STM32L151x6/8/B and STM32L152x6/8/B devices
are compatible with all ARM tools and software.
DAC
Y
Y
Y
Y
Y
-
-
-
Temperature
sensor
YY
Y
Y
Y
-
-
-
Comparators
Y
Y
Y
Y
Y
Y
-
-
16-bit and 32-bit
Timers
YY
Y
Y
-
-
-
-
IWDG
Y
Y
Y
Y
Y
Y
Y
Y
WWDG
Y
Y
Y
Y
-
-
-
-
Touch sensing
Y
-
-
-
-
-
-
-
Systick Timer
Y
Y
Y
Y
-
-
-
-
GPIOs
Y
Y
Y
Y
Y
Y
-
3 Pins
Wakeup time to
Run mode
0 µs
0.36 µs
3 µs
32 µs
< 8 µs
50 µs
Consumption
VDD=1.8V to 3.6V
(Typ)
Down to
214 µA/MHz
(from Flash)
Down to
50 µA/MHz
(from Flash)
Down to
9 µA
Down to
4.4 µA
0.5 µA (No
RTC) VDD=1.8V
0.3 µA (No RTC)
VDD=1.8V
1.4 µA (with
RTC) VDD=1.8V
1 µA (with RTC)
VDD=1.8V
0.5 µA (No
RTC) VDD=3.0V
0.3 µA (No RTC)
VDD=3.0V
1.6 µA (with
RTC) VDD=3.0V
1.3 µA (with
RTC) VDD=3.0V
1. The startup on communication line wakes the CPU which was made possible by an EXTI, this induces a delay before
entering run mode.
Table 5. Working mode-dependent functionalities
(from Run/active down to standby) (continued)
Ips
Run/Active
Sleep
Low-
power
Run
Low-
power
Sleep
Stop
Standby
Wakeup
capability
Wakeup
capability



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