LICAL-DEC-MS001 Linx Technologies Inc, LICAL-DEC-MS001 Datasheet - Page 3

• Manufacturer Part Number: LICAL-DEC-MS001
• Description: IC DECODER MS SERIES 20-SSOP
• Manufacturer: Linx Technologies Inc
• Series: MSr
• Type: Decoderr

Specifications of LICAL-DEC-MS001

• Package / Case: 20-SSOP
• Applications: RF, IR
• Mounting Type: Surface Mount
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Figure 4: MS Series Decoder Pin Assignments
D0-D7
SEL_BAUD0
SEL_BAUD1
GND
LATCH
RX_CNTL
TX_ID
MODE_IND
LEARN
DATA_IN
V
NOTE:
None of the input lines have internal pull-up or pull-down resistors. The input lines must always be in a
known state (either GND or V
ensure that the input lines are never floating, either by using external resistors, by tying the lines directly to
GND or V
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PIN ASSIGNMENTS
CC
Pin Name
CC
, or by use of other circuits to control the line state.
10
1
2
3
4
5
6
7
8
9
D6
D7
SEL_BAUD0
SEL_BAUD1
GND
GND
LATCH
RX_CNTL
TX_ID
MODE_IND
1, 2, 13, 14, 17-20
CC
Pin Number
) at all times or the operation may not be predictable. The designer must
15, 16
5, 6
LICAL-DEC-MS001
12
10
11
3
4
7
8
9
I/O
I/O
—
—
O
O
O
I
I
I
I
I
External Receiver Control Line
DATA_IN
Learn Mode Activation Line
Transmitter ID Output Line
Baud Rate Selection Line
Baud Rate Selection Line
LEARN
Mode Indicator Output
Positive Power Supply
Set Latched Outputs
Data Output Lines
VCC
VCC
Data Input Line
D5
D4
D3
D2
D1
D0
Description
Ground
20
19
18
17
16
15
14
13
12
11
PIN DESCRIPTIONS
Data Lines
SEL_BAUD0 and SEL_BAUD1
GND
LATCH
RX_CNTL
TX_ID
MODE_IND
LEARN
DATA_IN
V
CC
The encoder has eight data lines, D0 through D7. These lines will reproduce the
state of the encoder’s data lines upon reception of a valid packet.
These lines are used to
select the baud rate of the
serial data stream. The
state of the lines allows the
selection of one of four
possible baud rates, as
shown in the table.
The baud rate must be set before power up. The decoder will not recognize any
change in the baud rate setting after it is on.
These lines are connected to ground.
If this line is set low, then the data outputs will be unlatched, meaning they will
only be active for as long as a valid signal is received. If this line is set high, the
outputs will be latched, meaning that when a signal is received to make a
particular data line high, it will remain high until another transmission is received
to make it go low.
This line can be used to automatically power on and off a receiver. It will power
the receiver down for ten times as long as it is powered on. The times are
determined by the selected baud rate.
A unique ID number for each transmitter is stored in the decoder’s memory. A
byte is output as serial data on this line to indicate which transmitter a
transmission came from. This line can be connected to a processor or PC for
logging, display, or other evaluation.
This line will switch when a valid transmission is received, when Learn Mode is
entered, and when the memory is cleared. This allows for the connection of a
LED to indicate to the user that these events have taken place.
When this line goes high, the decoder will enter Learn Mode to accept a Code
Word from an encoder and store it in memory. If it is held high for ten seconds,
the decoder will clear all stored codes from memory.
This line will accept the encoded serial data stream from the receiver.
This is the positive power supply.
Table 3: Baud Rate Selection Table
SEL_BAUD1 SEL_BAUD0 Baud Rate (bps)
0
0
1
1
0
1
0
1
19,200
28,800
2,400
9,600
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