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STM32L072KZT6

STM32L072KZT6

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STM32L072KZT6 Overview

The ultra-low-power STM32L072xx microcontrollers incorporate the connectivity power of the universal serial bus (USB 2.0 crystal-less) with 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) plus an extensive range of enhanced I/Os and peripherals.

The STM32L072xx devices provide high power efficiency for a wide range of performance. It is achieved with a large choice of internal and external clock sources, an internal voltage adaptation and several low-power modes.
The STM32L072xx devices offer several analog features, one 12-bit ADC with hardware oversampling, two DACs, two ultra-low-power comparators, several timers, one low-power timer (LPTIM), four general-purpose 16-bit timers and two basic timer, one RTC and one SysTick which can be used as timebases. They also feature two watchdogs, one watchdog with independent clock and window capability and one window watchdog based on bus clock.
Moreover, the STM32L072xx devices embed standard and advanced communication interfaces: up to three I2Cs, two SPIs, one I2S, four USARTs, a low-power UART (LPUART), and a crystal-less USB. The devices offer up to 24 capacitive sensing channels to simply add touch sensing functionality to any application.
The STM32L072xx also include a real-time clock and a set of backup registers that remain powered in Standby mode.
The ultra-low-power STM32L072xx devices operate from a 1.8 to 3.6 V power supply (down to 1.65 V at power down) with BOR and from a 1.65 to 3.6 V power supply without BOR option. They are available in the -40 to +125 °C temperature range. A comprehensive set of power-saving modes allows the design of low-power applications.

ECAD Model

Footprint

STM32L072KZT6

Features

  • 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 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

    • Applications

    STM32L0

    Specifications

    • Core Processor ARM Cortex M0+

    • Speed 32MHz

    • Operating Temperature -40℃ ~ 85℃ (TA)

    • Program Memory Type FLASH

    • RAM Size 20K x 8

    • Number of I/O 25

    • Peripherals Brown-out Detect/Reset, DMA, POR, PWM, WDT

    • Mounting Type Surface Mount

    • Oscillator Type Internal

    • Supplier Device Package 32-LQFP (7x7)

    • EEPROM Size 6K x 8

    • Package / Case 32-LQFP

    • Core Size 32-Bit

    • Connectivity I2C, IrDA, SPI, UART/USART, USB

    • Program Memory Size 192KB (192K x 8)

    • Data Converters A/D 10x12b; D/A 2x12b

    • Voltage - Supply (Vcc/Vdd) 1.65V ~ 3.6V

    Circuit Diagram

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