Neoway WM620 - Page 3

WM620 Hardware User Guide
Copyright © Neoway Technology Co., Ltd
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Revision Record
Issue
Changes
Date
V1.0
Initial draft
2013-09
V1.1
Added UART description
2013-10
V1.2
Modified the description of the USB interfaces
2013-12
V1.3
Modified the description of some pins
2014-02
V1.4

Adjusted the structure of this guide

Added sections 3.6 Sleep Mode and 3.8 RF Interface, chapters 4
RF Features, and 5 Electric Features and Reliability
2014-06
V1.5

Added description of LED status

Deleted WM620-B

Added response time in sleep mode
2015-07
V1.6

Added WM620-B and deleted HSDPA

Modified pin definition figure and recommended PCB foot print

Modified the recommended level shifting circuit

Modified operating temperature, voltage, current, and ESD
testing indicator

Added dimensions tolerance

Deleted CSD
2017-04
V1.7

Added HSDPA and modified model

Modified GSM bands
2017-07