STMicroelectronics STM32L151CB Manual page 17

STM32L151x6/8/B, STM32L152x6/8/B
Table 5. Working mode-dependent functionalities
Ips
DAC
Temperature
sensor
Comparators
16-bit and 32-bit
Timers
IWDG
WWDG
Touch sensing
Systick Timer
GPIOs
Wakeup time to
Run mode
Consumption
V =1.8V to 3.6V
DD
(Typ)
1. The startup on communication line wakes the CPU which was made possible by an EXTI, this induces a delay before
entering run mode.
®
3.2 ARM
The ARM
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
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 STM32L15xx6/8/B is compatible with all ARM tools
and software.
Run/Active Sleep
Y Y
Y Y
Y Y
Y Y
Y Y
Y Y
Y -
Y Y
Y Y
0 µs 0.36 µs
Down to Down to
214 µA/MHz 50 µA/MHz
(from Flash) (from Flash)
®
Cortex -M3 core with MPU
® ®
Cortex -M3 processor is the industry leading processor for embedded systems.
® ®
Cortex -M3 32-bit RISC processor features exceptional code-efficiency,
DocID17659 Rev 10
from Run/active down to stand
(
Low- Low-
power power
Run Sleep
Y Y Y
Y Y Y
Y Y Y
Y Y -
Y Y Y
Y Y -
- - -
Y Y -
Y Y Y
3 µs 32 µs
RTC) V
RTC) V
Down to Down to
9 µA 4.4 µA
RTC) V
RTC) V
Functional overview
by) (continued)
Stop Standby
Wakeup Wakeup
capability capability
- -
- -
Y -
- -
Y Y
- -
- -
- -
Y -
< 8 µs 50 µs
0.5 µA (No 0.3 µA (No RTC)
=1.8V V =1.8V
DD DD
1.4 µA (with 1 µA (with RTC)
=1.8V V =1.8V
DD DD
0.5 µA (No 0.3 µA (No RTC)
=3.0V V =3.0V
DD DD
1.6 µA (with 1.3 µA (with
=3.0V RTC) V
DD
-
-
-
-
Y
-
-
-
3 Pins
=3.0V
DD
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