PT2294 データシートの表示（PDF） - Princeton Technology

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PT2294

Remote Control Decoder IC

Princeton Technology 

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

Remote Control Decoder IC

PT2294

PIN DESCRIPTION

Pin Name

A0 ~ A7

A8/D3 ~ A11/D0

I/O

Description

Code Address Pin Nos. 0 ~ 7.

I

These eight tri-state pins are detected by PT2294 to

determine the encoded waveform bit 0 ~ bit 9. Each pin can

be set to “0”, “1”, or “f” (floating).

Code Address Pin Nos. 8 ~ 11/Data Pin Nos. 0 ~ 3.

These four pins are used as higher address input bits or data

output pins depending on the version (type) of PT2294 used.

When used as address inputs, these pins are tri-state input

I/O

pins and each pin can be set to “0”, “1”, or “f” (floating).

When used as output pins, these pins are driven to VCC if (1)

the address decoded from the waveform that was received

matches the address setting at the address input pins, and

(2) the corresponding data bits received is a “1” bit.

Otherwise, they are driven to VSS.

DIN

OSC1

OSC2

VT

Data Input Pin.

I The encoded waveform received is serially fed to

PT2294 at this pin.

I Oscillator Pin No.1 A resistor connected between these

two pins determines the

O Oscillator Pin No. 2 fundamental frequency of PT2294.

Valid Transmission.

O Active High Signal. VT in high state signifies that

PT2294 receives valid transmission waveform.

VCC

VSS

- Positive Power Supply

- Negative Power Supply

Pin No.

1~8

10 ~ 13

14

16

15

17

18

9

PT2294 V1.2

-4-

April, 2006

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