PT2212 データシートの表示（PDF） - Princeton Technology
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PT2212 Datasheet PDF : 16 Pages
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Infrared Remote Control Transmitter
PIN CONFIGURATION
Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
PT2212
PIN DESCRIPTION
Symbol
KI0 ~ KI3
DOUT
VDD
NC
OSCO
OSCI
VSS
LMP
KO0 ~ KO7
SEL
I/O
Description
I
Key Matrix Input Pins
Built-in Pull-down Resistance
Remote Output Pin
O
The transmission pulse row modulated with carrier (38KHz duty 1/3)
is outputted. Large output current may be obtained for operating
infrared LED by means of driving base of NPN-Tr
- Positive Power Supply
- No Connection
O Oscillator Output Pin.
I Oscillator Input Pin
- Negative Power Supply
O
Transmission Indication Output Pin.
This pin connects the transmission Indicator LED.
O Key Matrix Output Pins
I System Code Selection Pin
Pin No.
1~4
5
6
7
8
9
10
11
19 ~12
20
PT2212 V1.1
-3-
May, 2007
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