STM32L021D4
STM32L021D4 is 32-bit MCU manufactured by STMicroelectronics.
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 k Hz 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 k Hz oscillator for RTC with calibration
- High speed internal 16 MHz factory-trimmed RC (+/- 1%)
- Internal low-power 37 k Hz RC
- Internal multispeed low-power 65 k Hz 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 Flash memory with ECC
- 2 KB RAM
- 512 B of data EEPROM with ECC
- 20-byte backup register
- Sector protection against R/W operation
- TSSOP14/20 169 mils
UFQFPN20 3x3 mm UFQFPN28 4x4 mm UFQFPN32 5x5 mm
LQFP32 7x7 mm
- Rich Analog peripherals
- 12-bit ADC 1.14 Msps up to 10 channels (down to 1.65...
