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Tel : 886-2-29162151
Princeton Technology Corp.
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
Programmable Encoder IC PT2241
DESCRIPTION
PT2241 is a tri-state programmable encoder utilizing CMOS Technology specially designed for remote
control applications. It encodes address and data codes into a coded waveform suitable for RF modulation and can provide up to 11 Address which may be designed by a one-time programmable process.
PT2241 can support up to 4 Data Bits, thereby reducing inventory pressures. It is housed in 8 or 16-pin
DIP or SO Package. The pin assignments and application circuit are optimized for easy PCB Layout
and cost saving advantage.
FEATURES
• CMOS Technology
• Low Power Consumption
• Least External Components
• High Noise Immunity
• Single Resistor Oscillator
• Operating Voltage: 1.8~15 V
• Up to 4 Data Pins
• Up to 311 Address Codes
• One-Time Programmable Process
• Available in SO or DIP Package
• Reduction of Inventory Pressures
APPLICATIONS
• Burglar Alarm System
• Car Security System
• Car/Garage Door Controller
• Home/Office Security System
• Personal Alarm System
PT2241 v1.3 Page 1 Written August 1998
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Tel : 886-2-29162151
Princeton Technology Corp.
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
Programmable Encoder IC PT2241
PIN CONFIGURATIONS
V
SS
S
V
PG
N
D
N
D
PGM
1
1
2
3
3
3
2
2
4
5
6
7
8
16
15
14
13
12
11
10
9
S
0
V
DD
D
OUT
OSC
D0/CLK
N0/CODE
D
1
N
1
PT2241 (16 PINS)
APPLICATION CIRCUITS
12V
+
VCC
V
PG
PGM
N0/CODE
1
2
3
4
8
7
6
5
PT2241 (8 PINS)
VDD
DOUT
OSC
D0/CLK
Vss
V
PG
PGM
N0/C OD E
V
DD
D
OUT
OSC
D
/C LK
0
Rosc
RF
PT2241
Note: In order that IC protection is assured, please make sure that a diode is connected between the
battery and the VDD. If the diode is not connected and the battery polarity was inverted, the IC will
fail.
PT2241 v1.3 Page 2 Written August 1998