 
    | Parameters | |
|---|---|
| Mounting Type | Surface Mount | 
| Package / Case | 48-UFQFN Exposed Pad | 
| Surface Mount | YES | 
| Number of Pins | 48 | 
| Operating Temperature | -40°C~85°C TA | 
| Packaging | Tray | 
| Series | STM32L1 | 
| JESD-609 Code | e3 | 
| Part Status | Active | 
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 
| Number of Terminations | 48 | 
| ECCN Code | 3A991.A.2 | 
| Terminal Finish | Matte Tin (Sn) - annealed | 
| Subcategory | Microcontrollers | 
| Technology | CMOS | 
| Terminal Position | QUAD | 
| Supply Voltage | 3V | 
| Terminal Pitch | 0.5mm | 
| Frequency | 32MHz | 
| Base Part Number | STM32L100 | 
| Supply Voltage-Max (Vsup) | 3.6V | 
| Power Supplies | 2/3.3V | 
| Interface | I2C, SPI, UART, USART, USB | 
| Memory Size | 32kB | 
| Oscillator Type | Internal | 
| Number of I/O | 37 | 
| RAM Size | 4K x 8 | 
| Voltage - Supply (Vcc/Vdd) | 1.8V~3.6V | 
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC | 
| Core Processor | ARM® Cortex®-M3 | 
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT | 
| Program Memory Type | FLASH | 
| Core Size | 32-Bit | 
| Program Memory Size | 32KB 32K x 8 | 
| Connectivity | I2C, SPI, UART/USART, USB | 
| Supply Current-Max | 11mA | 
| Bit Size | 32 | 
| Data Converter | A/D 16x12b; D/A 2x12b | 
| Watchdog Timer | Yes | 
| Has ADC | YES | 
| DMA Channels | YES | 
| Data Bus Width | 32b | 
| PWM Channels | YES | 
| DAC Channels | YES | 
| Number of Timers/Counters | 8 | 
| Core Architecture | ARM | 
| EEPROM Size | 2K x 8 | 
| On Chip Program ROM Width | 8 | 
| CPU Family | CORTEX-M3 | 
| Height Seated (Max) | 0.65mm | 
| Length | 7mm | 
| Radiation Hardening | No | 
| REACH SVHC | No SVHC | 
| RoHS Status | ROHS3 Compliant | 
| Factory Lead Time | 10 Weeks | 
The high-performance ARM? Cortex?-M3 32-bit RISC core operates at a frequency of 32 MHz (33.3 DMIPS) in the ultra-low-power STM32L100C6U6 devices. It also features a memory protection unit (MPU), high-speed embedded memories (Flash memory up to 128 Kbytes and RAM up to 10 Kbytes), and a wide variety of enhanced I/Os and peripherals connected to two APB buses.
Architecture developed to reach ultra-low consumption in both low-power modes and Run mode; ? Common power supply range from 1.8 V to 3.6 V
Quick startup from low-power modes
An adjustable system clock
Ultra-safe reset: uses the same reset approach as other reset methods, such as brownout reset, power-down reset, and programmable voltage detector.
Heat and smoke detectors
Transmitters for sensors
Circuit interrupters
Conditioning of sensor signal
Industrial communications over wires
Visual modules
Battery pack administration
Toll signs