Wi-Fi&Bluetooth Module Series
AF20_Hardware_Design
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1 Introduction
This document defines AF20 module and describes its air interface and hardware interfaces which are
connected with your applications.
With this document, you can quickly understand module interface specifications, electrical and
mechanical details, as well as other related information of the module. The document, coupled with
application notes and user guides, makes it easy to design and set up mobile applications with the
module.
1.1. Special Mark
Table 1: Special Mark
Brackets ([…]) used after a pin enclosing a range of numbers indicate all pins of the same
type. For example, SDIO_DATA[0:3] refers to all four SDIO pins, SDIO_DATA0, SDIO_DATA1,
SDIO_DATA2, SDIO_DATA3.