STM32L081CB Datasheet, PDF (1/110 Pages) STMicroelectronics – Access line ultra-low-power 32-bit MCU ARM-based Cortex-M0+, up to 192KB Flash, 20KB SRAM, 6KB EEPROM, ADC, AES

STM32L081CB STM32L081CZ
STM32L081KZ
Access line ultra-low-power 32-bit MCU ARM^®-based Cortex^®-M0+,
up to 192KB Flash, 20KB SRAM, 6KB EEPROM, ADC, AES
Datasheet - production data
Features
 Ultra-low-power platform
– 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 KB 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
 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, I2C, SPI supported
 Development support
– Serial wire debug supported
 Up to 40 fast I/Os (31 I/Os 5V tolerant)
 Memories
– Up to 192 KB Flash memory with ECC(2 banks
with read-while-write capability)
– 20 KB RAM
– 6 KB of data EEPROM with ECC
– 20-byte backup register
– Sector protection against R/W operation
LQFP32 7x7 mm
LQFP48 7x7 mm
UFQFPN32
5x5 mm
 Rich Analog peripherals
– 12-bit ADC 1.14 Msps up to 16 channels (down
to 1.65 V)
– 2x ultra-low-power comparators (window mode
and wake up capability, down to 1.65 V)
 7-channel DMA controller, supporting ADC, SPI,
I2C, USART, Timers, AES
 Up to 10x peripheral communication interfaces
– 4x USART (2 with ISO 7816, IrDA), 1x UART
(low power)
– Up to 6x SPI 16 Mbits/s
– 3x I2C (2 with SMBus/PMBus)
 11x timers: 2x 16-bit with up to 4 channels, 2x 16-bit
with up to 2 channels, 1x 16-bit ultra-low-power
timer, 1x SysTick, 1x RTC, 2x 16-bit basic, and 2x
watchdogs (independent/window)
 CRC calculation unit, 96-bit unique ID
 Hardware Encryption Engine AES 128-bit
 All packages are ECOPACK^®2
May 2016
This is information on a product in full production.
DocID027513 Rev 4
1/110
www.st.com