Princeton Technology Corp.
Programmable Encoder IC
Description
Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
PT2240
PT2240 is programmable encoder utilizing CMOS Technology specially designed for remote control applications. It has a maximum of 22 Address which may be designed by a one-time programmable process. It can support up to 8 Data Bits and is housed in 8 or 16-pin DIP or SO Package. It encodes address and data codes into a coded waveform suitable for RF modulation. The pin assignments and application circuit are optimized for easy PCB Layout and cost saving advantage. Furthermore, PT2240s intrinsic feature of being able to support 2/3/4/6/8 data bits considerably reduces inventory pressures.
Features
CMOS Technology Low Power Consumption Least External Components High Noise Immunity Single Resistor Oscillator Operating Voltage: 1.8~15 V Up to 8 Data Pins Up to 222 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
PT2240 v 1.4
Page 1
Revised Nov.1999
Princeton Technology Corp.
Programmable Encoder IC
Pin Configurations
1 VSS 2 VPG S0 3 PGM VDD 4 DOUT D1/CODE OSC PT2240 D0/CLK D1/CODE D2 1 VSS D3 2 PGM 3 D2 PINS) 4 D1/CODE
Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
PT2240
VSS S1 VPG D7 D6 D5 D4 PGM
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
8 7 6 5
VDD DOUT OSC D0/CLK
(8 PINS)
8 7 6 5 VDD DOUT OSC D0/CLK
PT2240 (16
PT2240-D3 (8 PINS)
Application Circuits
12V + _
Vss S1 VPG D7 D6 D5 D4 PGM
S0 VDD DOUT OSC D0/CLK D1/CODE D2 D3
Rosc
RF
Figure 1: PT2240 (8 Data) Application Circuit 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, then the IC will fail.
PT2240 v 1.4
Page 2
Revised Nov.1999
Princeton Technology Corp.
Programmable Encoder IC
Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
PT2240
12V
Vss VPG PGM
VDD DOUT OSC
Rosc
RF
D1/CODE D0/CLK
PT2240 (8 PINS)
Figure 2: PT2240 (8-pin) Application Circuit 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, then the IC will fail.
12V
Vss PGM D2
VDD DOUT OSC
Rosc
RF
D1/CODE D0/CLK
PT2240-D3 (8 PINS)
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, then the IC will fail.
PT2240 v 1.4
Page 3
Revised Nov.1999
Princeton Technology Corp.
Programmable Encoder IC
Order Information
Valid Part Number PT2240-D3 PT2240P-D3 PT2240-D3S PT2240P-D3S PT2240 PT2240-S PT2240P PT2240P-S PT2240-16 PT2240-16S PT2240P-16 PT2240P-16S Package 8 Pins, DIP 8 Pins, DIP 8 Pins, SOP (150 mil) 8 Pins, SIP (150 mil) 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)
Tel: 886-2-29162151 Fax: 886-2-29174598 URL: http://www.princeton.com.tw
PT2240
Address Codes Programmable Programmed Programmable Programmed Programmable Programmable Programmed Programmed Programmable Programmable Programmed Programmed
PT2240 v 1.4
Page 4
Revised Nov.1999
This datasheet has been downloaded from: www.DatasheetCatalog.com Datasheets for electronic components.
