STM32WL33KBV6

RF Transceiver ICS Overview

The STM32WL33KBV6 is a Sub-GHz Wireless Microcontroller featuring a single-core Arm Cortex-M0+ processor operating at 64 MHz. It integrates 128 Kbytes of Flash memory and 32 Kbytes of SRAM within a VFQFPN-32 package. The device supports a supply voltage range of 1.7 V to 3.6 V and operates between -40°C and +85°C. Key peripherals include an 8-channel 12-bit ADC, analog comparator, DAC, LCD driver, and standard communication interfaces such as USART, SPI, and I2C.

RF Transceiver ICS Feature Summary

• Integrates a Sub-GHz radio transceiver with IPD frontend for license-free ISM and SRD bands
• Supports multiple modulation schemes including OOK, ASK, GFSK, D-BPSK, and DSSS
• Includes dedicated hardware packet handler and autonomous wake-up receiver for low power consumption
• Features secure boot capabilities with write protection and sensitive information storage

RF Transceiver ICS Applications

• Smart metering and utility applications requiring wM-Bus or Mioty protocols
• Industrial automation using KNX-RF or proprietary Sub-GHz links
• Long-range IoT sensors utilizing Sigfox or IEEE 802.15.4g standards
• Remote control systems in the 169 MHz band

RF Transceiver ICS Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm pinout, temperature grade, and packaging type. Ensure compatibility with the intended RF frequency band, as variants exist for different regional allocations. Cross-reference the component marking code with the latest product change notifications to avoid obsolete revisions.

RF Transceiver ICS Selection Notes

Select this model when 128 Kbytes of Flash is sufficient for the application firmware. It is suitable for designs requiring a compact 32-pin package compared to larger memory variants. Consider the integrated LCD controller if display functionality is needed without external drivers. Validate that the Sub-GHz radio meets the regulatory requirements for the target deployment region.

RF Transceiver ICS Part Context

This component belongs to the STM32WL33xx series, designed for ultra-low power wireless applications. It combines an Arm Cortex-M0+ core with a high-performance Sub-GHz radio on a single chip. The series targets cost-effective solutions for battery-operated devices by reducing BOM costs through high integration of MCU, radio, and sensing controllers.

RF Transceiver ICS Replacement Considerations

STM32WL33CCV6 offers higher memory capacity (256 KB Flash) in a 48-pin package. STM32WL33KCV6X is a variant with identical specifications but potentially different packaging or tape-and-reel options. Verify pin compatibility before substitution.