Linx Technologies LICAL-DEC-MS001 - Manual (Page 10)

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Output Data
Read Data Packet
YES
Output TX ID
NO
YES
NO
YES
NO
YES
NO
Power Up
Go To
Learn
Mode
YES
NO
Set Baud Rate
NO
NO
YES
YES
Sleep
Did The
DATA_IN Line
Transition?
Pull RX_CNTL
Line High
Wait "Time On"
(1 Packet + 10mS
= 10%)
Pull RX_CNTL
Line Low
Wait 9x "Time On"
(90%)
NO
YES
Did The
DATA_IN Line
Transition?
NO
YES
Is The
LEARN Line
High?
Is
RX_CNTL
Used?
Is The
LEARN Line
High?
Start Toggling
MODE_IND
Clear All Memory
NO
YES
NO
YES
Update Address
YES
Save New
Address
NO
Pull MODE_IND
Line Low
Pull MODE_IND
Line High For 2
Sec.
Pull MODE_IND
Line High
NO
YES
YES
NO
Pull RX_CNTL
Line High
Pull RX_CNTL
Line Low
YES
NO
Pull MODE_IND
Line Low
Is
RX_CNTL
Used?
Is The
LEARN Line
High?
Is The
LEARN Line
High?
10 Sec.
Time-Out?
17 Sec.
Time-Out?
Was Any
Valid Data
Received?
Learn
Mode
Is
The Packet
Valid?
First Loop?
Did The
DATA_IN Line
Transition?
Time Out?
Flash MODE_IND
Line 5 Times
YES
NO Is Memory
Full?
Figure 11: MS Series Decoder Flowchart
Recommended Pad Layout
The MS Series encoders and decoders are implemented in an industry
standard 20-pin Shrink Small Outline Package (20-SSOP). The
recommended layout dimensions are shown in Figure 12.
Production Considerations
These surface-mount components are designed to comply with standard
reflow production methods. The recommended reflow profile is shown in
Figure 13 and should not be exceeded, as permanent damage to the part
may result.
0.047
(1.19)
0.016
(0.41)
0.026
(0.65)
0.328 (8.33)
0.234 (5.94)
Figure 12: PCB Layout Dimensions
240°C Max
0
25
50
75
100
125
150
175
200
225
250
TEMPERATURE (°C)
275
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320
TIME (SECONDS)
340 360 380 420 400
260°C Max
Lead-Free
Sn / Pb
Figure 13: MS Series Reflow Profile