Princeton Technology Corp.
Programmable Encoder IC
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
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 modula-
tion 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 3
11
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
Princeton Technology Corp.
Programmable Encoder IC
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2241
PIN CONFIGURATIONS
VSS
S1
VPG
N3
D3
N2
D2
PGM
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S0
VCC
VDD
VPG
DOUT
PGM
OSC
N0/CODE
D0/CLK
N0/CODE
D1
N1
1
2
3
4
8
7
6
5
VDD
DOUT
OSC
D0/CLK
PT2241 (8 PINS)
PT2241 (16 PINS)
APPLICATION CIRCUITS
12V
_
+
V ss
VPG
P GM
VDD
D OU T
OS C
Rosc
RF
N 0 /C O D E D 0 /C LK
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
Princeton Technology Corp.
Programmable Encoder IC
Tel : 886-2-29162151
Fax: 886-2-29174598
URL:
http://www.princeton.com.tw
PT2241
12V
+
_
S0
V ss
VDD
S1
DOUT
VPG
OSC
N3
D 0 /C LK
D3
N 0 /C O D E
N2
D2
D1
PGM
N1
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.
ORDER INFORMATION
Valid Part Number
PT2241
PT2241-S
PT2241P
PT2241P-S
PT2241-16
PT2241-16S
PT2241P-16
PT2241P-16S
PT2241 v1.3
Package
8 Pins, DIP
8 Pins, SOP (150 mil)
8 Pins, DIP
8 Pins, SOP (150 mil)
16 Pins, DIP
16 Pins, SOP (150 mil)
16 Pins, DIP
16 Pins, SOP (150 mil)
Page 3
Address Codes
Programmable
Programmable
Programmed
Programmed
Programmable
Programmable
Programmed
Programmed
Written August 1998
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