STMicroelectronics Electronic Components Datasheet

STM32L082KB Datasheet

32-bit MCU

No Preview Available !

STM32L082KB STM32L082KZ

STM32L082CZ

Ultra-low-power 32-bit MCU Arm®-based Cortex®-M0+, up to 192KB

Flash, 20KB SRAM, 6KB EEPROM, USB, ADC, DACs, AES

Datasheet - production data

Features

• 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)

• 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

LQFP32

(7x7 mm)

UFQFPN32

(5x5 mm)

UFQFPN48

(7x7 mm)

Standard and thin

WLCSP36

(2.61x2.88 mm)

• Rich Analog peripherals

– 12-bit ADC 1.14 Msps, up to 13 channels (down

to 1.65 V)

– 2 x 12-bit channel DACs with output buffers

(down to 1.8 V)

– 2x ultra-low-power comparators (window mode

and wake up capability, down to 1.65 V)

• Up to 19 capacitive sensing channels supporting

touchkey, linear and rotary touch sensors

• 7-channel DMA controller, supporting ADC, SPI,

I2C, USART, DAC, Timers, AES

• 11x peripheral communication interfaces

– 1x USB 2.0 crystal-less, battery charging

detection and LPM

– 4x USART (2 with ISO 7816, IrDA), 1x UART

(low power)

– Up to 6x SPI 16 Mbits/s

– 3x I2C (2 with SMBus/PMBus)

• 11x timers: 2x 16-bit with up to 4 channels, 2x 16-bit

with up to 2 channels, 1x 16-bit ultra-low-power

timer, 1x SysTick, 1x RTC, 2x 16-bit basic for DAC,

and 2x watchdogs (independent/window)

• CRC calculation unit, 96-bit unique ID

• True RNG and firewall protection

• Hardware Encryption Engine AES 128-bit

• All packages are ECOPACK2

November 2019

This is information on a product in full production.

DS10688 Rev 6

1/129

www.st.com

STMicroelectronics Electronic Components Datasheet

STM32L082KB Datasheet

32-bit MCU

No Preview Available !

Contents

STM32L082xx

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2.2 Ultra-low-power device continuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 Functional overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.1 Low-power modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.2 Interconnect matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.3 Arm® Cortex®-M0+ core with MPU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.4 Reset and supply management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4.1 Power supply schemes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4.2 Power supply supervisor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4.3 Voltage regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.5 Clock management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.6 Low-power real-time clock and backup registers . . . . . . . . . . . . . . . . . . . 25

3.7 General-purpose inputs/outputs (GPIOs) . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.8 Memories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.9 Boot modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.10 Direct memory access (DMA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.11 Analog-to-digital converter (ADC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.12 Temperature sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.12.1 Internal voltage reference (VREFINT) . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.13 Digital-to-analog converter (DAC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

3.14 Ultra-low-power comparators and reference voltage . . . . . . . . . . . . . . . . 29

3.15 Touch sensing controller (TSC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

3.16 AES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.17 Timers and watchdogs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.17.1 General-purpose timers (TIM2, TIM3, TIM21 and TIM22) . . . . . . . . . . . 31

3.17.2 Low-power Timer (LPTIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.17.3 Basic timer (TIM6, TIM7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.17.4 SysTick timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2/129

DS10688 Rev 6

900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf

STM32L082KB Datasheet

32-bit MCU

STM32L082KB Datasheet

32-bit MCU

Similar Datasheet

Part Number Start With