User's Manual

H350 LGA Serials Module Hardware User Manual Page of
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6
Contents
1 Preface....................................................................................................................................................................... 8
1.1 Scope.............................................................................................................................................................. 8
1.2 Standards....................................................................................................................................................... 8
2 Introduction.............................................................................................................................................................. 10
2.1 Description................................................................................................................................................... 10
2.2 Specifications...............................................................................................................................................10
2.3 Appearance.................................................................................................................................................. 12
3 Mechanical...............................................................................................................................................................15
3.1 Dimensions...................................................................................................................................................15
3.2 PCB Layout Design.................................................................................................................................... 16
4 Hardware Overview................................................................................................................................................17
4.1 Block Diagram............................................................................................................................................. 17
4.2 Pin Definition................................................................................................................................................18
4.2.1 Pin Map............................................................................................................................................. 18
4.2.2 Pin Description................................................................................................................................. 19
5 Hardware Interface.................................................................................................................................................24
5.1 Power Interface........................................................................................................................................... 24
5.1.1 VBAT.................................................................................................................................................. 24
5.1.2 Power Consumption........................................................................................................................25
5.1.3 VIO..................................................................................................................................................... 27
5.1.4 VRTC................................................................................................................................................. 27
5.2 ON/OFF and Reset..................................................................................................................................... 28
5.2.1 Pin Definition.................................................................................................................................... 28
5.2.2 Power ON Signal............................................................................................................................. 28
5.2.3 Power off Signal............................................................................................................................... 29
5.2.4 Reset Signal..................................................................................................................................... 30
5.3 Indicator Signal............................................................................................................................................31
5.3.1 Pin Description................................................................................................................................. 31
5.3.2 Indicator Description....................................................................................................................... 31
5.4 USB Interface...............................................................................................................................................32
5.4.1 USB Interface Description..............................................................................................................32
5.4.2 USB Interface Application.............................................................................................................. 33