PT2272-L3 データシートの表示（PDF） - Princeton Technology

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PT2272-L3

PT2272 / 2272-M2S / Remote Control Decoder / Available in DIP and SOP

Princeton Technology 

Remote Control Decoder

PIN DESCRIPTION

Tel: 886-2-66296288

Fax: 886-2-29174598

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

PT2272

Pin Name

A0 ~ A5

A6/D5 ~ A11/D0

DIN

OSC 1

OSC 2

VT

VCC

VSS

NC

I/O

Description

Pin No.

18pins 20pins

Code Address Pin Nos. 0 ~ 5.

I

These six tri-state pins are detected by PT2272 to

determine the encoded waveform bit 0 ~ bit 5.

1~6

1~6

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

Code Address Pin Nos. 6 ~ 11/Data Pin Nos. 5 ~ 0.

These six pins are used as higher address input

bits or data output pins depending on the version

(type) of PT2272 used.

When used as address inputs, these pins are

I/O

tri-state input pins and each pin can be set to “0”,

“1”, or “f” (floating).

When used as output pins, these pins are driven to

7~8

10 ~ 13

7~8

12 ~ 15

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.

Data Input Pin.

I The encoded waveform received is serially fed to 14

16

PT2272 at this pin.

A resistor connected

I Oscillator Pin No.1 between these two pins

15

17

determine the

O

Oscillator Pin No. 2

fundamental frequency of

PT2272.

16

18

Valid Transmission.

O Active High Signal. VT in high state signifies that 17

19

PT2272 receives valid transmission waveform.

- Positive Power Supply

18

20

- Negative Power Supply

9

9

- No Connection

- 10 ~ 11

PT2272 V3.7

-5-

June, 2008

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