embedded-processors-controllers

ESP8684

Full part number: ESP8684H4X

Key datasheet specifications and the closest alternatives, ranked by parametric similarity and grounded in the manufacturer datasheet.

01 — Overview

This datasheet covers the ESP8684 series, including the ESP8684H2X and ESP8684H4X, which are low-power RISC-V 32-bit MCUs from Espressif. The document details their integrated 2.4 GHz Wi-Fi (IEEE 802.11b/g/n) and Bluetooth 5 LE capabilities within a QFN24 package. Key parameters include a CPU frequency up to 120 MHz, ROM of 576 KB, SRAM of 272 KB, and in-package flash options of 2 MB or 4 MB. It highlights a maximum Wi-Fi data rate of 72.2 Mbps, Bluetooth power output of 20 dBm, and support for multiple network modes like Station and SoftAP.

02 — Key specifications

Datasheet parameters

ParameterMinTypMaxConditions
output current — — 730 mA
supply voltage range 3 V — 3.6 V
operating temperature -40 °C — 105 °C
clock frequency — 120 MHz —
cpu speed — 120 MHz —
program memory size — 4 MB —
ram size — 272 kB —
io count — 14 —
adc resolution — 12 bit —
core size — 32 bit —
03 — Alternatives

Closest matches to ESP8684

AT32F421C8T7 16.6× lower ram size, 1.1× lower supply voltage range, similar adc resolution
AT32F421G8U7 16.6× lower ram size, 1.1× lower supply voltage range, similar adc resolution
MSPM0G3505SDGS28 17.0× lower ram size, 12.0× lower clock frequency, 1.5× lower cpu speed
MSPM0G3507 8.5× lower ram size, 7.3× lower output current, 1.5× lower clock frequency
STM32F405OET6 8.0× lower clock frequency, 7.6× lower program memory size, 1.8× lower supply voltage range
STM32G431x6 8.3× lower ram size, 1.4× lower operating temperature, 1.4× higher cpu speed
TMS320F28030 2.0× lower clock frequency, 2.0× lower cpu speed, 1.5× lower supply voltage range
AT32F415KBU7 8.3× lower ram size, 1.2× higher clock frequency, 1.2× higher cpu speed
04 — FAQ

Frequently asked questions

What is the ADC resolution of the ESP8684H4X?

The ADC resolution is 12 bit.

What is the clock frequency of the ESP8684H4X?

The clock frequency is 120 MHz.

What is the core size of the ESP8684H4X?

The core size is 32 bit.

What is the CPU speed of the ESP8684H4X?

The CPU speed is 120 MHz.

What is the number of I/O pins on the ESP8684H4X?

The ESP8684H4X has 14 I/O pins.

What is the maximum operating temperature for the ESP8684H4X?

The maximum operating temperature is 105 °C.

What is the output current of the ESP8684H4X?

The output current is 730 mA.

What is the program memory size of the ESP8684H4X?

The program memory size is 4 MB.

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