STM32L073 in STM32 Family
The STM32L073 series is a high-density, ultra-low-power microcontroller sub-family developed by STMicroelectronics. Based on the ARM Cortex-M0+ core, these 32-bit devices are engineered for power-sensitive applications requiring a balance of efficient processing and high peripheral integration. Operating at 32 MHz, they provide an optimized platform for battery-operated systems by leveraging a proprietary ultra-low-leakage process technology and multiple power-management modes to extend operational life in the field while maintaining robust computational capabilities.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | I/O Pins | Package | ADC/DAC | Flash | Stock |
|---|---|---|---|---|---|
| STM32L073RZT6 (STMicroelectronics) | 51 | LQFP-64 | A/D 15x12b; D/A 2x.. | 192KB | 1,338 |
| STM32L073CZT6 (STMicroelectronics) | 37 | LQFP-48 | A/D 10x12b; D/A 2x.. | 192KB | 1,962 |
| STM32L073VBT6 (STMicroelectronics) | 84 | LQFP-100 | A/D 16x12b; D/A 2x.. | 128KB | — |
Variants within the STM32L073 sub-family are primarily distinguished by their physical packaging and pin counts, ranging from 48-pin UFQFPN to 100-pin LQFP or TFBGA options. While the internal 192KB Flash and 20KB SRAM remain consistent across the series, the choice of package directly impacts the number of available GPIOs, capacitive sensing channels, and peripheral mappings, allowing developers to scale their hardware design based on space constraints.
