STM32L443CC datasheet(13/207 Pages) STMICROELECTRONICS

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STM32L443CC STM32L443RC STM32L443VC

Description

The STM32L443xx devices are the ultra-low-power microcontrollers based on the high-

performance ARM® Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz.

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

ARM single-precision data-processing instructions and data types. It also implements a full

set of DSP instructions and a memory protection unit (MPU) which enhances application

security.

The STM32L443xx devices embed high-speed memories (256 Kbyte of Flash memory,

64 Kbyte of SRAM), a Quad SPI 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 STM32L443xx devices embed several protection mechanisms for embedded Flash

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

protection and Firewall.

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

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

purpose 32-bit timer, one 16-bit PWM timer dedicated to motor control, four general-purpose

16-bit timers, and two 16-bit low-power timers.

In addition, up to 21 capacitive sensing channels are available. The devices also embed an

integrated LCD driver 8x40 or 4x44, with internal step-up converter.

They also feature standard and advanced communication interfaces.

•

Three I2Cs

•

Three SPIs

•

Three USARTs and one Low-Power UART.

•

One SAI (Serial Audio Interfaces)

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One SDMMC

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One CAN

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One USB full-speed device crystal less

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One SWPMI (Single Wire Protocol Master Interface)

The STM32L443xx devices embed AES hardware accelerator.

The STM32L443xx operates in the -40 to +85 °C (+105 °C junction), -40 to +105 °C

(+125 °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: analog independent supply input for

ADC, DAC, OPAMPs and comparators, and 3.3 V dedicated supply input for USB. A VBAT

input allows to backup the RTC and backup registers.

The STM32L443xx family offers eight packages from 48 to 100-pin packages.

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