STM32L082CZY6TR Description

The high-performance Arm Cortex-M0+ 32-bit RISC core operates at a 32 MHz frequency in the ultra-low-power STM32L082CZY6TR microcontroller. It also features a memory protection unit (MPU), high-speed embedded memories (up to 192 Kbytes of Flash program memory, 6 Kbytes of data EEPROM, and 20 Kbytes of RAM), as well as a wide variety of enhanced I/Os and peripherals.

High power efficiency for a variety of performances is offered by the STM32L082CZY6TR device. This is made possible by a broad selection of internal and external clock sources, a built-in voltage adaption, and numerous low-power modes.

The STM32L082CZY6TR device includes a number of analog features, including a 12-bit ADC with hardware oversampling, two DACs, two ultra-low-power comparators, AES, and several timers, including one low-power timer (LPTIM), four general-purpose 16-bit timers, two basic timers, an RTC, and a SysTick that can be used as a time base. Additionally, they have two watchdogs: one with independent clock and window functionality and the other with a window watchdog based on a bus clock.

The STM32L082CZY6TR device also incorporates both conventional and cutting-edge communication interfaces, including up to three I2Cs, two SPIs, one I2S, four USARTs, and a low-power UART (LPUART), and a crystal-free USB. The gadgets allow you to easily add touch sensing functionality to any application thanks to their up to 19 capacitive sensing channels.

A real-time clock and several backup registers that are powered on even when the device is in standby mode are also included in the STM32L082CZY6TR.

The ultra-low-power STM32L082CZY6TR gadget runs on a 1.8 to 3.6 V power supply with BOR and a 1.65 to 3.6 V power supply without BOR option (down to 1.65 V at power down). They are offered in the temperature range of -40 to +125 °C. The development of low-power applications is made possible by a wide range of power-saving modes.

STM32L082CZY6TR Features

• Reset and supply management

– Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds

– Ultra-low-power POR/PDR

– Programmable voltage detector (PVD)

• Clock sources

– 1 to 25 MHz crystal oscillator

– 32 kHz oscillator for RTC with calibration

– High speed internal 16 MHz factory-trimmed RC (+/- 1%)

– Internal low-power 37 kHz RC

– Internal multispeed low-power 65 kHz to 4.2 MHz RC

– Internal self calibration of 48 MHz RC for USB

– PLL for CPU clock

• Pre-programmed bootloader

– USB, USART supported

• Development support

– Serial wire debug supported

• Ultra-low-power platform

– 1.65 V to 3.6 V power supply

– -40 to 125 °C temperature range

– 0.29 μA Standby mode (3 wakeup pins)

– 0.43 μA Stop mode (16 wakeup lines)

– 0.86 μA Stop mode + RTC + 20-Kbyte RAM retention

– Down to 93 μA/MHz in Run mode

– 5 μs wakeup time (from Flash memory)

– 41 μA 12-bit ADC conversion at 10 ksps

• Core: Arm? 32-bit Cortex?-M0+ with MPU

– From 32 kHz up to 32 MHz max.

– 0.95 DMIPS/MHz

• Memories

– Up to 192-Kbyte Flash memory with ECC (2 banks with read-while-write capability)

– 20-Kbyte RAM

– 6 Kbytes of data EEPROM with ECC

– 20-byte backup register

– Sector protection against R/W operation

• Up to 40 fast I/Os (34 I/Os 5V tolerant)

STM32L082CZY6TR Applications

• Remote control and user interface

• PC peripherals, gaming, GPS equipment

• Alarm system, wired and wireless sensors, video intercom

• Gas/water meters and industrial sensors

• Healthcare and fitness equipment