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STM32L021D4P7D

STM32L021D4P7D

STM32L021D4P7TR

STM32L021D4P7TR

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STM32L021D4P7DTR

Ultra-low-power Arm Cortex-M0+ MCU with 16-Kbytes of Flash memory, 32 MHz CPU, AES

Supply Voltage Min Volt1.65
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius105.0
CoreArm Cortex-M0+
ECCN US5A992.c
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeIndustrial
Package NameTSSOP-14L

The access line ultra-low-power STM32L021x4 family incorporates the high-performance ARM® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz frequency, high-speed embedded memories (16 Kbytes of Flash program memory, 512 bytes of data EEPROM and 2 Kbytes of RAM) plus an extensive range of...
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Key features
  • Ultra-low-power platform
    • 1.65 V to 3.6 V power supply
    • -40 to 125 °C temperature range
    • 0.23 μA Standby mode (2 wakeup pins)
    • 0.34 μA Stop mode (16 wakeup lines)
    • 0.67 μA Stop mode + RTC + 2 KB RAM retention
    • Down to 79 μA/MHz in Run mode
    • 5 μs wakeup time (from Flash memory)
    • 1 μA 12-bit ADC conversion at 10 ksps
  • Core: ARM® 32-bit Cortex®-M0+
    • Up to 32 MHz max.
    • 0.95 DMIPS/MHz
    • Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
    • Ultralow power POR/PDR
    • Programmable voltage detector (PVD)
  • Clock sources
    • 0 to 32 MHz external clock
    • 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
    • PLL for CPU clock
  • Pre-programmed bootloader
    • USART, SPI supported
  • Development support
    • Serial wire debug supported
  • Up to 38 fast I/Os (31 I/Os 5V tolerant)
  • Memories
    • 16 KB Flash memory with ECC
    • 2 KB RAM
    • 512 B of data EEPROM with ECC
    • 20-byte backup register
    • Sector protection against R/W operation
  • Rich Analog peripherals
    • 12-bit ADC 1.14 Msps up to 10 channels (down to 1.65 V)
    • 2x ultra-low-power comparators (window mode and wake up capability, down to 1.8 V)
  • 7-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers, AES
  • 5x peripherals communication interface
  • 1x USART (ISO 7816, IrDA), 1x UART (low power)
  • 1x SPI 16 Mbits/s
  • 1x I2C (SMBus/PMBus)
  • 8x timers: 1x 16-bit with up to 4 channels, 1x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC and 2x watchdogs (independent/window)
  • CRC calculation unit, 96-bit unique ID
  • Hardware Encryption Engine AES 128-bit
  • All packages are ECOPACK®2
Out of Stock
Quantity $ per unit Savings
1-9$2.600%
10-99$2.3310%
100-249$1.8728%
250-499$1.7533%
500-999$1.5441%
1000-2499$1.2751%
2500-10000$1.1954%
Contact sales
$2.60
Supply Voltage Min Volt1.65
Supply Voltage Max Volt3.6
Operating Temp Min Celsius-40.0
Operating Temp Max Celsius105.0
CoreArm Cortex-M0+
ECCN US5A992.c
ECCN EUNEC
Packing TypeTape And Reel
RoHs compliantEcopack2
GradeIndustrial
Package NameTSSOP-14L

The access line ultra-low-power STM32L021x4 family incorporates the high-performance ARM® Cortex®-M0+ 32-bit RISC core operating at a 32 MHz frequency, high-speed embedded memories (16 Kbytes of Flash program memory, 512 bytes of data EEPROM and 2 Kbytes of RAM) plus an extensive range of...
Read More

Key features
  • Ultra-low-power platform
    • 1.65 V to 3.6 V power supply
    • -40 to 125 °C temperature range
    • 0.23 μA Standby mode (2 wakeup pins)
    • 0.34 μA Stop mode (16 wakeup lines)
    • 0.67 μA Stop mode + RTC + 2 KB RAM retention
    • Down to 79 μA/MHz in Run mode
    • 5 μs wakeup time (from Flash memory)
    • 1 μA 12-bit ADC conversion at 10 ksps
  • Core: ARM® 32-bit Cortex®-M0+
    • Up to 32 MHz max.
    • 0.95 DMIPS/MHz
    • Ultra-safe, low-power BOR (brownout reset) with 5 selectable thresholds
    • Ultralow power POR/PDR
    • Programmable voltage detector (PVD)
  • Clock sources
    • 0 to 32 MHz external clock
    • 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
    • PLL for CPU clock
  • Pre-programmed bootloader
    • USART, SPI supported
  • Development support
    • Serial wire debug supported
  • Up to 38 fast I/Os (31 I/Os 5V tolerant)
  • Memories
    • 16 KB Flash memory with ECC
    • 2 KB RAM
    • 512 B of data EEPROM with ECC
    • 20-byte backup register
    • Sector protection against R/W operation
  • Rich Analog peripherals
    • 12-bit ADC 1.14 Msps up to 10 channels (down to 1.65 V)
    • 2x ultra-low-power comparators (window mode and wake up capability, down to 1.8 V)
  • 7-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers, AES
  • 5x peripherals communication interface
  • 1x USART (ISO 7816, IrDA), 1x UART (low power)
  • 1x SPI 16 Mbits/s
  • 1x I2C (SMBus/PMBus)
  • 8x timers: 1x 16-bit with up to 4 channels, 1x 16-bit with up to 2 channels, 1x 16-bit ultra-low-power timer, 1x SysTick, 1x RTC and 2x watchdogs (independent/window)
  • CRC calculation unit, 96-bit unique ID
  • Hardware Encryption Engine AES 128-bit
  • All packages are ECOPACK®2