embedded processors controllers

ESP8684

Full part number: ESP8684H4X

Every spec below is cited to the manufacturer datasheet. Compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the ESP8684 does

The ESP8684HxX series are ultra-low power, high integration microcontroller system-on-chips featuring 2.4 GHz Wi-Fi and Bluetooth Low Energy. The family includes the ESP8684H2X and ESP8684H4X variants, which integrate a RISC-V 32-bit processor running up to 120 MHz, 576 KB ROM, and 272 KB SRAM. These chips support IEEE 802.11b/g/n with data rates up to 72.2 Mbps and Bluetooth 5.3 with speeds reaching 2 Mbps. They operate on a single supply of 2.35 to 3.6 V and are designed for applications requiring simultaneous Wi-Fi and BLE connectivity in a compact QFN24 package.

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Start building with ESP8684 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
01 — Key specifications

Datasheet parameters

Datasheet parameters for ESP8684
ParameterMinTypMaxConditionsSource
supply voltage range 3 V — 3.6 V VDDA3P3, VDDA, VDD3P3_RTC, VDD3P3_CPU 建议输入电压 Espressif datasheet, p. 43 — 表 16: 建议工作条件
operating temperature -40 °C — 105 °C ta; 建议工作条件 Espressif datasheet, p. 43 — 表 16: 建议工作条件
operating frequency 2.41 GHz — 2.48 GHz Wi-Fi 工作信道中心频率范围 Espressif datasheet, p. 47 — 表 25: Wi-Fi 射频规格
output power — 21.5 dBm — 802.11b, 1 Mbps Espressif datasheet, p. 47 — 表 26: 频谱模板和 EVM 符合 802.11 标准时的发射功率
sensitivity — -99 dBm — 802.11b, 1 Mbps Espressif datasheet, p. 48 — 表 28: 接收灵敏度
02 — Alternatives

Closest matches to ESP8684

EZR32HG220 2.6× lower operating frequency, 1.8× lower supply voltage range, 1.4× lower operating temperature
EZR32HG220F32R55G 2.6× lower operating frequency, 1.8× lower supply voltage range, 1.4× lower operating temperature
CC1312R 2.0× lower operating frequency, 1.5× lower output power, 1.1× higher sensitivity
CC1110F16RHHR 7.6× lower operating frequency, 2.1× lower output power, 1.4× lower operating temperature
CC2530F128 4.8× lower output power, 1.3× higher operating temperature, similar sensitivity
EFM8BB51F16G-C 1.4× lower operating temperature, 1.1× higher supply voltage range
EFM8BB51F16G-C-QFN20 1.4× lower operating temperature, 1.1× higher supply voltage range
MSPM0G3505SDGS28 1.3× higher operating temperature, 1.3× lower supply voltage range
03 — FAQ

Frequently asked questions

What is the operating frequency for the ESP8684H4X?

The operating frequency is 2.48 GHz, which corresponds to the Wi-Fi 工作信道中心频率范围.

What is the maximum operating temperature (ta) under recommended operating conditions?

The maximum operating temperature (ta) under recommended operating conditions is 105 °C.

What is the output power of the ESP8684H4X at 1 Mbps under 802.11b?

The output power is 21.5 dBm.

What is the sensitivity of the ESP8684H4X at 1 Mbps under 802.11b?

The sensitivity is -99 dBm.

What is the supply voltage range for VDDA3P3, VDDA, VDD3P3_RTC, and VDD3P3_CPU?

The recommended input voltage for VDDA3P3, VDDA, VDD3P3_RTC, and VDD3P3_CPU is 3.6 V.

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