STM32L083V8T6 [STMicroelectronics]

STM32L083V8T6 Description

The high-performance Arm Cortex-M0+ 32-bit RISC core operating at a 32 MHz frequency, 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 range of enhanced I/Os and peripherals, are all included in the ultra-low-power STM32L083V8T6 microcontroller.

High power efficiency is offered by the STM32L083V8T6 device for a variety of performance. A wide variety of internal and external clock sources, an internal voltage adaption, and numerous low-power modes are used to achieve it.

The STM32L083V8T6 device has 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 lowpower timer (LPTIM), four general-purpose 16-bit timers, two basic timers, an RTC, and an optional SysTick that can serve as a timebase. They also have two watchdogs: a window watchdog based on bus clock and a watchdog with separate clock and window functionality.

The STM32L083V8T6 device also incorporates both conventional and cutting-edge communication interfaces, including up to three I2Cs, two SPIs, one I2S, four USARTs, a low-power UART (LPUART), and a crystal-free USB. The gadgets allow you to easily add touch sensing capability to any application thanks to their up to 24 capacitive sensing channels.

A real-time clock and several backup registers are also included in the STM32L083V8T6 and are powered even when the device is in standby mode.

The integrated LCD controller's LCD voltage generator, which can drive up to 8 multiplexed LCDs with contrast independent of supply voltage, is the last feature.

When using a 1.8 to 3.6 V power supply with BOR or a 1.65 to 3.6 V power supply without BOR option, the ultra-low-power STM32L083V8T6 device can run (down to 1.65 V at power down). They come in temperature ranges from -40 to +125 °C. Low-power applications can be designed thanks to a wide range of power-saving modes.

STM32L083V8T6 Features

• Rich Analog peripherals

? 12-bit ADC 1.14 Msps up to 16 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 24 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

• Ultra-low-power platform

? 1.65 V to 3.6 V power supply

? -40 to 125 °C temperature range

? 0.29 ?A Standby mode (3 wakeup pins)

? 0.43 ?A Stop mode (16 wakeup lines)

? 0.86 ?A Stop mode + RTC + 20-Kbyte RAM retention

? Down to 93 ?A/MHz in Run mode

? 5 ?s wakeup time (from Flash memory)

? 41 ?A 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 84 fast I/Os (78 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

• LCD driver for up to 4x52 or 8x48 segments

? Support contrast adjustment

? Support blinking mode

? Step-up converted on board

STM32L083V8T6 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