STMicroelectronics STM32L021F4
The STM32L021x4 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 STM32L021x4 devices offer several analog features, one 12-bit ADC with hardware oversampling, two ultra-low-power comparators, AES, several timers, one low-power timer (LPTIM), three general-purpose 16-bit timers, one RTC and one SysTick which can be used as timebases.| Part No. | STM32L021F4 |
|---|---|
| Datasheet | STM32L021F4 Download |
| Manufacturer |  STMicroelectronics |
| Description | 32-bit MCU |
| Buy | Stock & Price |
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) – 0.29 µA Stop mode (16 wakeup lines) – 0.54 µA Stop mode + RTC + 2 KB RAM retention – Down to 76 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+ – From 32 kHz to 32 MHz max. – 0.95 DMIPS/MHz
● Reset and supply management – 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 28 fast I/Os (23 I/Os 5V tolerant)
● Memories – 16 KB Fl...
