STM32L432 in STM32 Family
The STM32L432 sub-family by STMicroelectronics is a series of ultra-low-power microcontrollers based on the high-performance ARM Cortex-M4 32-bit RISC core operating at frequencies up to 80 MHz. These devices implement a full set of DSP instructions and a floating-point unit to support advanced signal processing. Designed for energy-sensitive applications, the family integrates high-speed memories, including up to 256 KB of Flash and 64 KB of SRAM, while maintaining extremely low power consumption in various sleep modes.
Variants in This Sub-Family
Comparing specs that differ across variants.
| Part Number | Flash | Stock |
|---|---|---|
| STM32L432KBU6 (STMicroelectronics) | 128KB | 4,992 |
| STM32L432KCU6 (STMicroelectronics) | 256KB | 7,265 |
Variants within the STM32L432 sub-family primarily differ based on their integrated Flash memory capacity and package options. For instance, the STM32L432KBU6 offers 128 KB of Flash, whereas the STM32L432KCU6 provides 256 KB. Most devices in this specific line utilize the 32-pin UFQFPN package to minimize PCB footprint. Engineers should verify specific SRAM allocations and peripheral availability, though pinouts remain largely consistent across the K-series variants to facilitate hardware scaling.
