STM32L151VC STMicroelectronics, STM32L151VC Datasheet - Page 22

• Manufacturer Part Number: STM32L151VC
• Description: Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, LCD, USB, 3xOp-amp
• Manufacturer: STMicroelectronics

Specifications of STM32L151VC

• Operating Power Supply Range: 1.65 V to 3.6 V (without BOR) or 1.8 V to 3.6 V
• 7 Modes: Sleep, Low-power run (11 μA at 32 kHz) , Low-power sleep (4.4 μA), Stop with RTC, Stop (650 nA), Standby with RTC, Standby (300 nA)
• Ultralow Leakage Per I/o: 50 nA max
• Fast Wakeup Time From Stop: 8 μs
• Core: ARM 32-bit Cortex™-M3 CPU
• Dma: 12-channel DMA controller
• 11 Timers: one 32-bit and six 16-bit general-purpose timers, two 16-bit basic timers, two watchdog timers (independent and window)

Functional overview
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Eight DAC trigger inputs are used in the STM32L15xxC. The DAC channels are triggered
through the timer update outputs that are also connected to different DMA channels.
Operational amplifier
The STM32L15xxC embeds two operational amplifiers with external or internal follower
routing capability (or even amplifier and filter capability with external components). When
one operational amplifier is selected, one external ADC channel is used to enable output
measurement.
The operational amplifiers feature:
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Ultralow power comparators and reference voltage
The STM32L15xxC embeds two comparators sharing the same current bias and reference
voltage. The reference voltage can be internal or external (coming from an I/O).
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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).
System configuration controller and routing interface
The system configuration controller provides the capability to remap some alternate
functions on different I/O ports.
The highly flexible routing interface allows the application firmware to control the routing of
different I/Os to the TIM2, TIM3 and TIM4 timer input captures. It also controls the routing of
internal analog signals to ADC1, COMP1 and COMP2 and the internal reference voltage
V
REFINT
Low input bias current
Low offset voltage
Low power mode
Rail-to-rail input
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 (V
Doc ID 022799 Rev 1
REFINT
) or a submultiple (1/4, 1/2, 3/4)
STM32L151xC, STM32L152xC