The ultra-low-power STM32L151x6/8/B-A and STM32L152x6/8/B-A 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 128 Kbytes and RAM up to 32 Kbytes) and an extensive range of enhanced I/Os and peripherals connected to two APB buses.
All the devices offer a 12-bit ADC, 2 DACs and 2 ultra-low-power comparators, six general-purpose 16-bit timers and two basic timers, which can be used as time bases.
Moreover, the STM32L151x6/8/B-A and STM32L152x6/8/B-A devices contain standard and advanced communication interfaces: up to two I2Cs and SPIs, three USARTs and a USB. The STM32L151x6/8/B-A and STM32L152x6/8/B-A devices offer up to 20 capacitive sensing channels to simply add touch sensing functionality to any application.
They also include a real-time clock with sub-second counting and a set of backup registers that remain powered in Standby mode.
Finally, the integrated LCD controller (except STM32L151x6/8/B-A devices) has a built-in LCD voltage generator that allows to drive up to 8 multiplexed LCDs with contrast independent of the supply voltage.
The ultra-low-power STM32L151x6/8/B-A and STM32L152x6/8/B-A 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.
Documents & Media
|Design Resources||Development Tool Selector|
|Product Attributes||Select All|
|Categories||Integrated Circuits (ICs)|
|Embedded - Microcontrollers|
|Core Processor||ARM® Cortex®-M3|
|Connectivity||I²C, IrDA, LINbus, SPI, UART/USART, USB|
|Peripherals||Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT|
|Number of I/O||37|
|Program Memory Size||64KB (64K x 8)|
|Program Memory Type||FLASH|
|EEPROM Size||4K x 8|
|RAM Size||10K x 8|
|Voltage - Supply (Vcc/Vdd)||1.8 V ~ 3.6 V|
|Data Converters||A/D 16x12b, D/A 2x12b|
|Operating Temperature||-40°C ~ 85°C (TA)|
|Package / Case||48-LQFP|
|Supplier Device Package||48-LQFP (7x7)|
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