RF803D RF Solutions, RF803D Datasheet - Page 7

• Manufacturer Part Number: RF803D
• Description: IC DECODER 3 DGTL I/O 8-PDIP
• Manufacturer: RF Solutions
• Type: Decoderr

Specifications of RF803D

• Applications: RF, IR
• Mounting Type: Through Hole
• Package / Case: 8-DIP
• Supply Voltage Range: 2V To 5.5V
• Digital Ic Case Style: DIP
• No. Of Pins: 8
• Filter Terminals: DIP
• Control Interface: Serial
• Supply Voltage Max: 5.5V
• No. Of I/o's: 3
• Communication Function: Decoder
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

D
D
S
S
8
8
0
0
3
3
-
-
4
4
N
N
o
o
v
v
t
t
‘
‘
0
0
9
9
Serial Data Format
Serial Data is sent every 1/2 second as a stream of 7 bytes at 9.6K baud. The serial data format is:
8 data bits with 1 stop bit, no parity.
Serial data is output form the Decoder chip whenever a valid data packet from an RF80n or other
compatible RF Solutions transmitter is received regardless of learn
Encoder Serial Number [NN]: made up of two 8-bit bytes where the most significant byte is
transmitted first.
This provides a total of 65,536 possible serial numbers.
Example:
Encoder Input Information [XX]: made up of two 8-bit bytes.
The high order byte is sent first representing inputs 16 down to 9 where the MSb is input 16 and the
LSb is input 9.
The low order byte is sent next representing inputs 8 down to 1 where the MSb is input 8 and the
LSb is input 1.
A bit at state 1 represents an encoder input as active.
Using this method inputs can be multiplexed giving maximum versatility.
Example:
Status [STAT]: The status byte is made up of an 8-bit byte as follows:
Example:
12AB (hexadecimal) or 0001 0010 1010 1011 (binary)
00000000 00001000 - Shows input 4 active.
00000001 00000000 – Shows input 9 active
10000001 00000001 – Shows inputs 16, 9 and 1 active
00000010 = encoder battery ok, encoder has been learnt
00000001 = encoder battery low, encoder has not been learnt
Bit-7 down to 2
N
E
E
Bit 1
Bit 0
BIT
n
n
©
©
N
2
2
0
c
0
c
0
0
8
8
T
T
o
o
X
R
R
e
e
l
l
F
F
d
0
0
d
S
S
1
1
2
2
o
o
e
e
7
7
X
l
l
u
u
Description
Reserved
Learn status
Battery status
3
3
t
t
i
i
r
r
o
8
o
8
n
n
9
9
STAT $0D $0A
s
8
s
8
/
/
0
0
L
L
0
0
t
t
d
d
0
0
D
D
Output from Serial Data pin
,
,
F
F
w
w
a
a
w
w
e
e
x
x
w
w
0
0
.
.
c
1
1
c
r
r
f
f
2
2
s
s
7
7
o
o
o
o
3
3
l
l
u
u
4
4
t
t
d
i
i
d
8
8
o
o
0
n
0
n
6
s
6
Details
For future usage
1 = encoder has been learnt
0 = encoder battery is OK
1 = encoder battery is low
s
e
e
7 bytes of data transmitted
.
.
6
6
c
c
1
1
o
o
r
r
.
.
u
u
LF Line feed (last character)
CR Carriage return
Battery Status / Learn Status
Encoder Input information
Encoder serial number
k
k
I
I
C
C
’
’
s
s
P
P
a
a
g
g
e
e
7
7
R
R
F
F
8
8
0
0
3
3