STM32L4S5AI datasheet(13/275 Pages) STMICROELECTRONICS

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STM32L4S5xx, STM32L4S7xx and STM32L4S9xx

Description

The STM32L4S5xx, STM32L4S7xx and STM32L4S9xx devices are an ultra-low-power

microcontrollers family (STM32L4+ Series) based on the high-performance

Arm® Cortex®-M4 32-bit RISC core. They operate at a frequency of up to 120 MHz.

The Cortex-M4 core features a single-precision floating-point unit (FPU), which supports all

the Arm® single-precision data-processing instructions and all the data types. The Cortex-

M4 core also implements a full set of DSP (digital signal processing) instructions and a

memory protection unit (MPU) which enhances the application’s security.

These devices embed high-speed memories (2 Mbytes of Flash memory and 640 Kbytes of

SRAM), a flexible external memory controller (FSMC) for static memories (for devices with

packages of 100 pins and more), two OctoSPI Flash memories interface (available on all

packages) and an extensive range of enhanced I/Os and peripherals connected to two APB

buses, two AHB buses and a 32-bit multi-AHB bus matrix.

The STM32L4Sxxx devices embed several protection mechanisms for embedded Flash

memory and SRAM: readout protection, write protection, proprietary code readout

protection and a firewall.

These devices offer a fast 12-bit ADC (5 Msps), two comparators, two operational

amplifiers, two DAC channels, an internal voltage reference buffer, a low-power RTC, two

general-purpose 32-bit timer, two 16-bit PWM timers dedicated to motor control, seven

general-purpose 16-bit timers, and two 16-bit low-power timers. The devices support four

digital filters for external sigma delta modulators (DFSDM). In addition, up to 24 capacitive

sensing channels are available.

They also feature standard and advanced communication interfaces such as:

•

Four I2Cs

•

Three SPIs

•

Three USARTs, two UARTs and one low-power UART

•

Two SAIs

•

One SDMMC

•

One CAN

•

One USB OTG full-speed

•

Camera interface

•

DMA2D controller

The STM32L4S5xx, STM32L4S7xx and STM32L4S9xx devices embed an AES and a

HASH hardware accelerator.

The devices operate in the -40 to +85 °C (+105 °C junction) and -40 to +125 °C (+130 °C

junction) temperature ranges from a 1.71 to 3.6 V power supply. A comprehensive set of

power-saving modes allows the design of low-power applications.

Some independent power supplies are supported like an analog independent supply input

for ADC, DAC, OPAMPs and comparators, a 3.3 V dedicated supply input for USB and up to

14 I/Os, which can be supplied independently down to 1.08 V. A VBAT input allows to

backup the RTC and backup the registers.

The STM32L4Sxxx family offers six packages from 100-pin to 169-pin.

STM32L4S5AI Datasheet(PDF) 13 Page - STMicroelectronics

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