HT6240 datasheet(3/16 Pages) HOLTEK

Part #	HT6240

Description	Infrared Remote Encoder

PDF	16 Pages

Scroll/Zoom	100%

Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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3 / 16 page

Pad Description

Pad No.

Pad Name

I/O

Internal

Connection

Description

PRB

CMOS

Pull-high

Power on reset

OSCI

CMOS

Oscillator input

OSCO

CMOS

Oscillator output

DATA

I/O

CMOS, NMOS

Pull-high

Detect custom code and extended code

5~8

IE0~IE3

CMOS

Pull-high

Detect input from key matrix

9~16

OF7~OF0

NMOS

Drive for key scan

CMOS

Generates output transmission code

VDD

¾¾

Positive power supply

VSS

¾¾

Negative power supply

TEST

CMOS

TEST=Low normal mode

TEST=High test mode

Approximate internal connection circuits

HT6240-002

Rev. 1.30

November 6, 2002

P i n : T E S T , O S C I

P i n : P R B , I E 0 ~ I E 3

I n p u t t e r m i n a l

V D D

P i n : O S C O , C T

P i n : O . 0 ~ O . 7

O u t p u t t e r m i n a l

V D D

P i n : D A T A

B i d i r e c t i o n a l t e r m i n a l

V D D

HT6240 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

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