STM32L151R6H6TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STM32L151R6H6TR

Ultra-low-power 32-bit MCU ARM®-based Cortex®-M3, 128KB Flash, 16KB SRAM, 4KB EEPROM, LCD, USB, ADC, DAC

STMicroelectronics 

STM32L151x6/8/B STM32L152x6/8/B

Functional overview

implementation based on a surface charge transfer acquisition principle. It consists of

charging the sensor capacitance and then transferring a part of the accumulated charges

into a sampling capacitor until the voltage across this capacitor has reached a specific

threshold. The capacitive sensing acquisition only requires few external components to

operate.

Reliable touch sensing functionality can be quickly and easily implemented using the free

STM32L1xx STMTouch touch sensing firmware library.

3.15

Timers and watchdogs

The ultra-low-power STM32L151x6/8/B and STM32L152x6/8/B devices include six general-

purpose timers, two basic timers and two watchdog timers.

Table 6 compares the features of the general-purpose and basic timers.

Table 6. Timer feature comparison

Timer

Counter

resolution

Counter

type

Prescaler

factor

DMA request Capture/compare Complementary

generation

channels

outputs

TIM2,

Up, Any integer

TIM3, 16-bit

down, between 1

Yes

4

No

TIM4

up/down and 65536

Any integer

TIM9 16-bit

Up

between 1

No

2

No

and 65536

TIM10,

TIM11

16-bit

Any integer

Up

between 1

and 65536

No

1

No

TIM6,

TIM7

16-bit

Any integer

Up

between 1

Yes

and 65536

0

No

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