ESP8285 datasheet(2/30 Pages) ESPRESSIF

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About This Guide

This document introduces the speciﬁcations of ESP8285.

Release Notes

Date

Version

Release notes

2016.04

V1.0

First release.

2016.11

V1.1

Added Appendix B “Learning Resources”.

2017.01

V1.2

•

Changed the power consumption during Deep-sleep from 10 μA to 20 μA in

Table 5-2.

•

Changed the crystal frequency range from “26 MHz to 52 MHz” to “24 MHz

to 52 MHz” in Section 3.3.

•

Changed the minimum working voltage from 3.0V to 2.5V.

2017.05

V1.3

Changed the chip's input impedance of 50Ω to output impedance of 39+j6 Ω.

2017.11

V1.4

Updated Chapter 3 regarding the range of clock amplitude to 0.8 ~ 1.5V;

Updated the range of operating voltage to 2.7 ~ 3.6V;

Updated the range of VDDPST to 2.7 ~ 3.6V.

2018.04

V1.5

•

Added a note in Chapter 2;

•

Updated description about CPU in Section 3.1.1.

2018.12

V1.6

•

Update document cover;

•

Added a note for Table 1-1;

•

Updated Wi-Fi key features in Section 1.1;

•

Updated description of the Wi-Fi function in 3.5;

•

Updated pin layout diagram;

•

Fixed a typo in Table 2-1;

•

Removed Section AHB and AHB module;

•

Restructured Section Power Management;

•

Fixed a typo in Section UART;

•

Removed description of transmission angle in Section IR Remote Control;

•

Added a SPI pin in Table 4-2;

•

Updated the diagram of packing information;

•

Other optimization (wording).

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