16 KB Flash, 2 KB SRAM, 512 B EEPROM — memory budget for a sensor node
The STM32L021D4P6 is an STMicroelectronics STM32L0 series 32-bit MCU built around the ARM Cortex-M0+ core running at 32 MHz.
14-TSSOP with 11 I/O — board-area constrained designs
Housed in a 14-lead TSSOP (4.40 mm width), this package suits space-limited PCBs where every square millimetre counts. The 11 general-purpose I/O lines are enough for a few sensor inputs, a serial bus, and a PWM output for a small motor or indicator.
Industrial temperature grade and active lifecycle
ST lists the product status as Active, so there is no near-term last-time-buy or EOL risk for production planning. The ROHS3 compliance simplifies EU and global regulatory acceptance.
Connectivity and peripherals for a compact control loop
A 4-channel 12-bit ADC handles analog sensor inputs without an external converter.