Radio Encoder / Decoder IC’s
Typical application circuit for RF800 setup as an Encoder
RF800
Pin Descriptions for RF800 configured as a Encoder
Pin
Number
1
2
3
4
5
6
7
8 & 19
9
10
11-18
20
28-21
Name
MCLR
Mode
100 / 400
TEN / LRN
TEN / 204
LED
Data
GND
OSC1
OSC2
IN 9-16
Vcc
IN 1-8
Type
Power
In/Out
In
In/Out
In/Out
Out
In/Out
Power
In
Out
In
Power
In
Description
Vcc supply voltage connection
Selects operation as Decoder when low or Encoder when high.
RF baud rate (element time) select option.
Logic ‘1’ selects 100us element time.
Logic ‘0’ selects 400us element time.
Transmitter enable active low
Transmitter enable active high
Status LED
Transmitted RF serial data
0 volts.
Connect to 4MHz, 3 terminal resonator.
Connect to 4MHz, 3 terminal resonator.
Logic inputs 9 to 16
Vcc supply voltage connection.
Decouple with a 100n capacitor close to the IC supply pins.
Logic inputs 1 to 8
DS800-4 July ’07
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