PT2215-040 Ver la hoja de datos (PDF) - Princeton Technology
Número de pieza
componentes Descripción
Fabricante
PT2215-040 Datasheet PDF : 16 Pages
| |||
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Infrared Remote Control Transmitter IC
PT2215
FUNCTION DESCRIPTION
When a key is pressed, PT2215 generates output pulses in compliant with the RC5 protocol. PT2215
does not have a software programmable processor but contains a ROM which is used for storing the
codes that have been transmitted. A 432KHz or 4MHz oscillation frequency may be selected. External
capacitors must be connected to generated the 432KHz oscillation frequency.
When a key belonging to the key matrix is pressed, a drive line is connected to a Sense Line. This will
then activate the oscillation and a corresponding code will be generated in accordance with the RC5
protocol. Up to 7 drive lines (/KO0 to /KO6) may be connected to up to eight sense lines (KI0 to KI7) in
order to construct a key matrix. Please refer to the tables below.
KEY MATRIX FOR 20 PINS PACKAGE
Driver Lines
KI0
Sense Lines
KI1 KI2 KI3 KI4 KI5 KI6 KI7
/KO0
0
1
2
3
4
5
6
7
/KO1
8
9 10 11 12 13 14 15
/KO2
16 17 18 19 20 21 22 23
/KO3
24 25 26 27 28 29 30 31
/KO4
32 33 34 35 36 37 38 39
/KO5
40 41 42 43 44 45 46 47
/KO6
48 49 50 51 52 53 54 55
PT2215 V1.1
-4-
April, 2006
Share Link: 