1.1 Features

CPU and On-Chip Memory

? ESP8685H4 embedded, 32-bit RISC-V

single-core processor, up to 160 MHz

? 384 KB ROM

? 400 KB SRAM (16 KB for cache)

? 8 KB SRAM in RTC

? 4 MB flash in chip package

Wi-Fi

? IEEE 802.11b/g/n-compliant

? Center frequency range of operating channel:

2412 ~ 2484 MHz

? Supports 20 MHz, 40 MHz bandwidth in 2.4

GHz band

? 1T1R mode with data rate up to 150 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)

? 4 × virtual Wi-Fi interfaces

? Simultaneous support for Infrastructure BSS in

Station mode, SoftAP mode, Station + SoftAP

mode, and promiscuous mode

Note that when ESP8685 scans in Station

mode, the SoftAP channel will change along

with the Station channel

? 802.11mc FTM

Bluetooth?

? Bluetooth LE: Bluetooth 5, Bluetooth mesh

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

? Advertising extensions

? Multiple advertisement sets

? Channel selection algorithm #2

Peripherals

? 15 or 5 GPIOs

– 3 strapping GPIOs

? SPI, UART, I2C, I2S, remote control peripheral,

LED PWM controller, general DMA controller,

TWAI? controller (compatible with ISO 11898-1,

i.e. CAN Specification 2.0), USB Serial/JTAG

controller, temperature sensor, SAR ADC,

general-purpose timers, watchdog timers

Note:

* Please refer to ESP8685 Series Datasheet for

detailed information about the module peripherals.

Integrated Components on Module

? 40 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

? RF certification: See certificates

? Green certification: RoHS/REACH

Test

? HTOL/HTSL/uHAST/TCT/ESD