User's Manual

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USER MANUAL 1.34

STM 300 / STM 300C / STM 300U

TABLE OF CONTENT

1 MODULE VARIANTS AND RELATED DOCUMENTS ............................................... 4

2 GENERAL DESCRIPTION ................................................................................. 4

2.1 Basic functionality ......................................................................................... 4

2.2 Technical data ............................................................................................... 5

2.3 Physical dimensions ....................................................................................... 6

2.4 Environmental conditions ............................................................................... 6

2.5 Ordering Information ..................................................................................... 6

3 FUNCTIONAL DESCRIPTION ............................................................................ 8

3.1 Simplified firmware flow chart and block diagram .............................................. 8

3.2 Hardware pin out ........................................................................................... 9

3.3 Pin description and operational characteristics ................................................. 10

3.3.1 GPIO supply voltage ................................................................................ 12

3.3.2 Analog and digital inputs .......................................................................... 13

3.4 Absolute maximum ratings (non operating) .................................................... 14

3.5 Maximum ratings (operating) ........................................................................ 14

3.6 Power management and voltage regulators .................................................... 14

3.7 Charge control output (CCO) ......................................................................... 15

3.8 Configuration .............................................................................................. 16

3.8.1 Configuration via pins .............................................................................. 16

3.8.2 Configuration via programming interface .................................................... 17

3.9 Radio telegram ............................................................................................ 18

3.9.1 Normal operation ..................................................................................... 18

3.9.2 Teach-in telegram ................................................................................... 19

3.10 Transmit timing ...................................................................................... 19

3.11 Energy consumption ............................................................................... 20

4 APPLICATIONS INFORMATION ....................................................................... 21

4.1 How to connect an energy harvester and energy storage .................................. 21

4.2 Using the SCO pin ....................................................................................... 23

4.3 Using the WAKE pins .................................................................................... 23

4.4 Using RVDD ................................................................................................ 24

4.5 Antenna options STM 300x ........................................................................... 25

4.5.1 Overview ................................................................................................ 25

4.5.2 Whip antenna .......................................................................................... 25

4.5.3 Helical antenna (Supplier: EnOcean) .......................................................... 26

4.5.4 Chip antenna (supplier: Mitsubishi Material, Type AM11DG-ST01) ................. 27

4.6 Positioning of the whip antenna ..................................................................... 28

4.7 Recommendations for laying a whip antenna................................................... 29

4.8 Layout recommendations for foot pattern ....................................................... 30

4.9 Soldering information ................................................................................... 34

4.10 Tape & Reel specification ......................................................................... 35

4.11 Transmission range ................................................................................. 36

5 AGENCY CERTIFICATIONS ............................................................................ 37

5.1 CE approval ................................................................................................ 37

5.2 FCC (United States) Certification ................................................................... 38

5.3 IC (Industry Canada) Certification ................................................................. 40

5.4 FCC Regulatory Statements ............................................................................... 41

5.5 Industry Canada Regulatory Statements ................................................................ 42