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The STM32L053R8T7 is an ultra-low-power 32-bit microcontroller based on the ARM® Cortex®-M0+ RISC core, operating at frequencies up to 32MHz.

It offers high energy efficiency with a wide range of internal and external clock source options, internal voltage adaptive regulation, and multiple low-power modes, enabling efficient power management across various performance requirements.

The chip integrates multiple analog functions, including a 12-bit ADC (with hardware oversampling), a DAC, and two ultra-low-power comparators, as well as multiple timers, a low-power timer (LPTIM), three general-purpose 16-bit timers, a basic timer, an RTC, and a SysTick that can serve as a time reference.

In terms of communication interfaces, it offers up to two I²C, two SPI, one I²S, two USART, one low-power UART (LPUART), and USB interfaces that do not require a crystal oscillator, among other standard and advanced interfaces. It also includes up to 24 capacitive sensing channels, enabling easy integration of touch sensing functionality into various applications.

STM32L053R8T7 Product Attributes

Manufacturer: STMicroelectronics    

Product Type: ARM Microcontroller - MCU             

Series: STM32L053R8    

Mounting Style: SMD/SMT    

Package/Case: LQFP-64    

Core: ARM Cortex M0+    

Program Memory Size: 64 kB    

Data Bus Width: 32-bit

ADC Resolution: 12-bit

Maximum Clock Frequency: 32 MHz

Number of Input/Output Pins: 51 I/O

Data RAM Size: 8 kB

Power Supply Voltage - Minimum: 1.65 V

Power Supply Voltage - Maximum: 3.6 V

Minimum Operating Temperature: -40°C

Maximum Operating Temperature: +105°C

Analogue power supply voltage: 1.65 V to 3.6 V    

DAC resolution: 12 bit    

Data RAM type: SRAM    

Interface type: I2C, SPI, UART    

Humidity sensitivity: Yes    

Number of timers/counters: 5 Timers    

Processor series: STM32L0    

Program memory type: Flash

Trademark Name: STM32

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