Datasheet

1. Overview

Espressif’s ESP8285 delivers highly integrated Wi-Fi SoC solution to meet users’

continuous demands for efﬁcient power usage, compact design and reliable performance

in the Internet of Things industry.

With the complete and self-contained Wi-Fi networking capabilities, ESP8285 can perform

either as a standalone application or as the slave to a host MCU. When ESP8285 hosts the

application, it promptly boots up from the ﬂash. The integrated high-speed cache helps to

increase the system performance and optimize the system memory. Also, ESP8285 can be

applied to any micro-controller design as a Wi-Fi adaptor through SPI/SDIO or I2C/UART

interfaces.

ESP8285 integrates antenna switches, RF balun, power ampliﬁer, low noise receive

ampliﬁer, ﬁlters and power management modules. The compact design minimizes the PCB

size and requires minimal external circuitries.

Besides the Wi-Fi functionalities, ESP8285 also integrates an enhanced version of

Tensilica’s L106 Diamond series 32-bit processor and on-chip SRAM. It can be interfaced

with external sensors and other devices through the GPIOs. Software Development Kit

(SDK) provides sample codes for various applications.

Espressif Systems’ Smart Connectivity Platform (ESCP) enables sophisticated features

including fast switch between sleep and wake-up mode for energy-efﬁcient purpose,

adaptive radio biasing for low-power operation, advance signal processing, spur

cancellation and radio co-existence mechanisms for common cellular, Bluetooth, DDR,

LVDS, LCD interference mitigation.

1.1. Wi-Fi Protocol

• 802.11 b/g/n/e/i support.

•

Wi-Fi Direct (P2P) support.

• P2P Discovery, Group Owner GO (P2P) mode, Group Client (GC) mode and P2P

Power Management.

• Infrastructure BSS Station mode / P2P mode / SoftAP mode support.

•

Hardware accelerators for CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4),

WAPI (SMS4), WEP (RC4), CRC.

• WPA/WPA2 PSK, and WPS driver.

• Additional 802.11i security features such as pre-authentication, and TSN.

•

Open Interface for various upper layer authentication schemes over EAP such as

TLS, PEAP, LEAP, SIM, AKA, or customer speciﬁc.

• 802.11n support (2.4 GHz).

• Supports MIMO 1×1 and 2×1, STBC, A-MPDU and A-MSDU aggregation and 0.4 μs

guard interval.

Espressif

$ /$1 25

2017.05