ESP32-S3R2

RF Transceiver ICS Overview

The ESP32-S3R2 is a System on Chip (SoC) integrating a dual-core Xtensa 32-bit LX7 microprocessor operating at 240 MHz. It features integrated 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5.0 (LE). The chip includes 512 KB SRAM, 384 KB ROM, and 2 MB of on-chip PSRAM. Electrical specifications include a supply voltage range of 3 V to 3.6 V, maximum transmit power of 21 dBm, and receive sensitivity of -98.4 dBm. Maximum data rates reach 150 Mbps. Operating temperatures span from -40 °C to +105 °C. The component utilizes a QFN-56 package measuring 7x7 mm.

RF Transceiver ICS Feature Summary

• Integrates high-performance dual-core RISC-V processor with low-power coprocessor for efficient task handling
• Combines IEEE 802.11 b/g/n Wi-Fi and Bluetooth 5.0 LE capabilities within a single RF module
• Includes substantial on-chip memory resources comprising SRAM, ROM, and embedded PSRAM

RF Transceiver ICS Applications

• AIoT applications requiring local processing
• Smart home devices
• Wearable electronics
• Industrial wireless control systems

RF Transceiver ICS Procurement Notes

Verify current availability status as the manufacturer indicates this specific part number is obsolete and no longer manufactured. Confirm replacement compatibility with recommended substitutes such as the ESP32-S3RH2 before initiating procurement processes. Ensure all technical requirements align with the substitute component's specifications to maintain system integrity.

RF Transceiver ICS Selection Notes

Select this component only if legacy design compatibility is required or for existing production lines utilizing the QFN-56 footprint. Evaluate the ESP32-S3RH2 as the primary alternative due to the obsolescence of the S3R2. Consider pinout compatibility and memory configuration differences when migrating designs to ensure seamless integration without hardware redesign.

RF Transceiver ICS Part Context

The ESP32-S3R2 belongs to the ESP32-S3 series, which provides a low-power MCU-based solution with integrated wireless connectivity. This series supports AIoT applications through its powerful processor and rich peripheral set. The R2 variant specifically denotes the package type and internal memory configuration within the broader family of Espressif wireless SoCs.

RF Transceiver ICS Replacement Considerations

The ESP32-S3RH2 is listed as a manufacturer-recommended substitute. Verify physical package dimensions and pin assignments to ensure mechanical fit. Review electrical characteristics and firmware compatibility to confirm functional equivalence in the target application environment.