ESP8685H2

RF Transceiver ICS Overview

The ESP8685H2 is an RF System on Chip (SoC) from Espressif Systems, integrating a single-core RISC-V MCU with 2.4 GHz Wi-Fi and Bluetooth Low Energy 5.0 capabilities. It features a 160 MHz clock frequency, delivering a maximum data rate of 150 Mbps. The device includes 2 MB of internal flash memory and 400 kB of SRAM. Electrical specifications indicate a transmit output power of 21 dBm and a receive sensitivity of -76.6 dBm. Power consumption is characterized by a receive current of 87 mA and a transmission current of 335 mA. It operates within a voltage range of 3 V to 3.6 V and supports an industrial temperature range of -40°C to +105°C.

RF Transceiver ICS Feature Summary

• Integrates a high-performance single-core RISC-V processor with dual-band wireless connectivity for Wi-Fi and BLE 5.0.
• Provides extensive peripheral interfaces including GPIO, I2C, I2S, SPI, UART, and USB for versatile system integration.
• Features built-in non-volatile memory and static RAM to support complex application execution without external components.

RF Transceiver ICS Applications

• Smart home devices requiring low-power wireless connectivity
• IoT sensors utilizing BLE and Wi-Fi protocols
• Industrial control modules operating in extended temperature environments

RF Transceiver ICS Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required antenna configurations and regulatory certifications. Confirm that the QFN-28 package dimensions align with the target PCB footprint. Check the manufacturer's lifecycle status, as availability may be subject to production end-of-life notices. Ensure design-in documentation matches the exact part number variant intended for mass production.

RF Transceiver ICS Selection Notes

Select this component when a balance between processing power and wireless performance is required for compact designs. The integrated 2 MB flash eliminates the need for external memory chips, reducing bill of materials cost. Consider the 160 MHz CPU speed for applications demanding efficient protocol stack handling. Verify that the 28-pin QFN package allows sufficient thermal dissipation for continuous transmission operations.

RF Transceiver ICS Part Context

The ESP8685H2 belongs to Espressif's family of highly integrated wireless SoCs designed for resource-constrained IoT applications. It complements other models like the ESP8684H2 by offering higher throughput and additional interface options such as USB and I2S. This series targets developers seeking a unified solution for both compute and connectivity tasks in small form factor devices.

RF Transceiver ICS Replacement Considerations

The ESP8685H4 serves as a direct substitute with increased 4 MB flash capacity while maintaining the same pinout and core specifications. Designers should verify software compatibility when migrating between these variants due to potential memory mapping differences.

RF Transceiver ICS FAQ

What is the maximum clock frequency of the ESP8685H2?

The microcontroller unit operates at a maximum clock frequency of 160 MHz.

Does the ESP8685H2 support USB connectivity?

Yes, the device includes USB interface capabilities alongside standard serial and parallel communication protocols.