DocID17659 Rev 10
STM32L151x6/8/B, STM32L152x6/8/B
Description
46
2 Description
The ultralow power STM32L15xx6/8/B incorporates the connectivity power of the universal
serial bus (USB) with the high-performance ARM
®
Cortex
®
-M3 32-bit RISC core operating
at 32 MHz frequency (33.3 DMIPS), a memory protection unit (MPU), high-speed
embedded memories (Flash memory up to 128 Kbytes and RAM up to 16 Kbytes) and an
extensive range of enhanced I/Os and peripherals connected to two APB buses.
All devices offer a 12-bit ADC, 2 DACs and 2 ultralow power comparators, six general-
purpose 16-bit timers and two basic timers, which can be used as time bases.
Moreover, the STM32L15xx6/8/B devices contain standard and advanced communication
interfaces: up to two I
2
Cs and SPIs, three USARTs and a USB.The STM32L15xx6/8/B
devices offer up to 20 capacitive sensing channels to simply add 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 has a built-in LCD voltage generator that allows you to
drive up to 8 multiplexed LCDs with contrast independent of the supply voltage.
The ultralow power STM32L15xx6/8/B operates 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.
It is available in the -40 to +85 °C temperature range, extended to 105°C in low power
dissipation state. A comprehensive set of power-saving modes allows the design of low-
power applications.