PT2268 데이터 시트보기 (PDF) - Princeton Technology
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PT2268 Datasheet PDF : 16 Pages
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Remote Control Encoder
PIN CONFIGURATION
I1 1
16
I2
2
15
I3
3
14
I4
4
13
PT 2 26 8
I5
5
12
I6
6
11
I7
7
10
I8
8
9
VC C
OSC1
OSC1
TxOU T
C4
C5
C6
VSS
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URL: http://www.princeton.com.tw
PT2268
PIN DESCRIPTION
Pin Name
I1 ~ I8
VSS
C4 ~ C5
I/O
Description
Key Input Pins.
I These pins are used to connect a maximum of 8 keys. (Each pin has a
built-in pull-low resistor.)
- Negative Power Supply
I
Select Input Pin for Start Word
These pins have internal pull-low resistors.
C6
Tx OUT
OSC1
OSC2
VCC
I
Select Input Pin for Start Word
This pin has an internal pull-high resistor.
Transmission Output Pin.
O This pin is an open drain (NMOS) output and is used to transmit
signals. The carrier frequency is 38 KHz.
I Oscillator No.1 Pin These pins are used to externally connect a
O Oscillator No.2 Pin 455 KHz Ceramic Resonator
- Positive Power Supply
Pin No.
1~8
9
12 ~ 11
10
13
15
14
16
PT2268 V2.5
-3-
April, 2006
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