STM32L151XE datasheet(10/134 Pages) STMICROELECTRONICS

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Description

STM32L151xE STM32L152xE

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DocID025433 Rev 8

Description

The ultra-low-power STM32L151xE and STM32L152xE devices incorporate the

connectivity power of the universal serial bus (USB) with the high-performance ARM®

Cortex®-M3 32-bit RISC core operating at a frequency of 32 MHz (33.3 DMIPS), a memory

protection unit (MPU), high-speed embedded memories (Flash memory up to 512 Kbytes

and RAM up to 80 Kbytes), and an extensive range of enhanced I/Os and peripherals

connected to two APB buses.

The STM32L151xE and STM32L152xE devices offer two operational amplifiers, one 12-bit

ADC, two DACs, two ultra-low-power comparators, one general-purpose 32-bit timer, six

general-purpose 16-bit timers and two basic timers, which can be used as time bases.

Moreover, the STM32L151xE and STM32L152xE devices contain standard and advanced

communication interfaces: up to two I2Cs, three SPIs, two I2S, three USARTs, two UARTs

and an USB. The STM32L151xE and STM32L152xE devices offer up to 34 capacitive

sensing channels to simply add a touch sensing functionality to any application.

They also include a real-time clock and a set of backup registers that remain powered in

Standby mode.

Finally, the integrated LCD controller (except STM32L151xE devices) has a built-in LCD

voltage generator that allows to drive up to 8 multiplexed LCDs with the contrast

independent of the supply voltage.

The ultra-low-power STM32L151xE and STM32L152xE devices operate from a 1.8 to 3.6 V

power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power

supply without BOR option. They are available in the -40 to +85 °C and -40 to +105 °C

temperature ranges. A comprehensive set of power-saving modes allows the design of low-

power applications.

STM32L151XE 데이터시트(PDF) 10 Page - STMicroelectronics