Features

Wi-Fi

• IEEE 802.11b/g/n-compliant

• 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)

• Four 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

• Antenna diversity

• 802.11mc FTM

Bluetooth®

• Bluetooth LE: Bluetooth 5, Bluetooth mesh

• 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

CPU and Memory

• 32-bit RISC-V single-core processor, up to 160 MHz

• CoreMark® score:

– 1 core at 160 MHz: 483.27 CoreMark; 3.02 CoreMark/MHz

• 384 KB ROM

• 400 KB SRAM (16 KB for cache)

• 8 KB SRAM in RTC

• In-package flash

• Access to flash accelerated by cache

• Supports flash in-Circuit Programming (ICP)

Advanced Peripheral Interfaces

• 15 programmable GPIOs

• Digital interfaces:

– Three SPI (SPI0 and SPI1 are used to connect the in-package flash. Only SPI2 is available)

– Two UART

– I2C

– I2S

– Remote control peripheral, with 2 transmit channels and 2 receive channels

– LED PWM controller, with up to 6 channels

– Full-speed USB Serial/JTAG controller

– General DMA controller (GDMA), with 3 transmit channels and 3 receive channels

– TWAI® controller compatible with ISO 11898-1 (CAN Specification 2.0)

• Analog interfaces:

– Two 12-bit SAR ADCs, up to 6 channels

– Temperature sensor

• Timers:

– Two 54-bit general-purpose timers

– Three digital watchdog timers

– Analog watchdog timer

– 52-bit system timer

Power Management

• Fine-resolution power control through a selection of clock frequency, duty cycle, Wi-Fi operating modes,

and individual power control of internal components

• Four power modes designed for typical scenarios: Active, Modem-sleep, Light-sleep, Deep-sleep

• Power consumption in Deep-sleep mode is 5 μA

• RTC memory remains powered on in Deep-sleep mode

Security

• Secure boot - permission control on accessing internal and external memory

• Flash encryption - memory encryption and decryption

• 4096-bit OTP, up to 1792 bits for users

• Cryptographic hardware acceleration:

– AES-128/256 (FIPS PUB 197)

– SHA Accelerator (FIPS PUB 180-4)

– RSA Accelerator

– Random Number Generator (RNG)

– HMAC

– Digital signature

RF Module

• Antenna switches, RF balun, power amplifier, low-noise receive amplifier

• Up to +21 dBm of power for an 802.11b transmission

• Up to +20 dBm of power for an 802.11n transmission

• Up to -105 dBm of sensitivity for Bluetooth LE receiver (125 Kbps)