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1.1 Features

CPU and On-Chip Memory

? ESP8684H2X or ESP8684H4X embedded,

32-bit RISC-V single-core processor, up to 120

MHz

? 576 KB ROM

? 272 KB SRAM (16 KB for cache)

? In-Package flash (see details in Table 1 Series

Comparison)

? Access to flash accelerated by cache

? Supports flash in-Circuit Programming (ICP)

Wi-Fi

? IEEE 802.11 b/g/n-compliant

? Center frequency range of operating channel:

2412 ~ 2484 MHz

? Supports 20 MHz bandwidth in 2.4 GHz band

? 1T1R mode with data rate up to 72.2 Mbps

? Wi-Fi Multimedia (WMM)

? TX/RX A-MPDU, TX/RX A-MSDU

? Immediate Block ACK

? Fragmentation and defragmentation

? Transmit opportunity (TXOP)

? Automatic Beacon monitoring (hardware TSF)

? 3 × virtual Wi-Fi interfaces

? Simultaneous support for Infrastructure BSS in

Station mode, SoftAP mode, Station + SoftAP

mode, and promiscuous mode

Note that when ESP8684 series scans in

Station mode, the SoftAP channel will change

along with the Station channel

Bluetooth?

? Bluetooth LE: Bluetooth 5.3 certified

? High power mode (20 dBm)

? Speed: 125 kbps, 500 kbps, 1 Mbps, 2 Mbps

? Advertising extensions

? Multiple advertisement sets

? Channel selection algorithm #2

? Internal co-existence mechanism between Wi-Fi

and Bluetooth to share the same antenna

Peripherals

? Up to 14 GPIOs

– 2 strapping GPIOs

? GPIO, SPI, UART, I2C, LED PWM controller,

general DMA controller, SAR ADC, temperature

sensor, general-purpose timers, system timers,

and watchdog timers

Note:

* Please refer to ESP8684 Series Datasheet for

detailed information about the module peripherals.

Integrated Components on Module

? 26 MHz crystal oscillator

Antenna Options

? On-board PCB antenna

Operating Conditions

? Operating voltage/Power supply: 3.0 ~ 3.6 V

? Operating ambient temperature: –40 ~ 105 °C

Certification

? Bluetooth certification: BQB

? Green certification: RoHS/REACH

Test

? HTOL/HTSL/uHAST/TCT/ESD/Latch-up