Integrated Circuit Chip New And Original STM32L051R8T6TR

datasheet

Features
• Ultra-low-power platform
– 1.65 V to 3.6 V power supply
– -40 to 125 °C temperature range
– 0.27 µA Standby mode (2 wakeup pins)
– 0.4 µA Stop mode (16 wakeup lines)
– 0.8 µA Stop mode + RTC + 8-Kbyte RAM
retention
– 88 µA/MHz in Run mode
– 3.5 µs wakeup time (from RAM)
– 5 µs wakeup time (from Flash memory)
• Core: Arm® 32-bit Cortex®-M0+ with MPU
– From 32 kHz up to 32 MHz max.
– 0.95 DMIPS/MHz
• Memories
– Up to 64-Kbyte Flash memory with ECC
– 8-Kbyte RAM
– 2 Kbytes of data EEPROM with ECC
– 20-byte backup register
– Sector protection against R/W operation
• Up to 51 fast I/Os (45 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
– PLL for CPU clock
• Pre-programmed bootloader
– USART, SPI supported
• Development support
– Serial wire debug supported