HT6230 datasheet(3/8 Pages) HOLTEK

Part #	HT6230

Description	Infrared Remote Encoder

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Manufacturer	HOLTEK [Holtek Semiconductor Inc]

Direct Link	http://www.holtek.com

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3 / 8 page

Pad Description

Pad No.

Pad Name

I/O

Internal

Connection

Description

1~3

28

ZIN1~ZIN3

ZIN0

I

CMOS with

PMOS Pull-high Detect inputs from Z-key matrix

4

MCODE

O

Tri-state

CMOS

Generate modulation output data code with

1/12 system frequency and 1/4 duty cycle

5

CODE

O

Tri-state

CMOS

Generates output data code

6~10

DRS7~DRS3

O

Open Drain

NMOS

Drive for key scanning

11

VSS

¾¾

Negative power supply, ground

12~14

DRS2~DRS0

O

Open Drain

NMOS

Drive for key scanning

15

OSC

I

CMOS

Oscillator input

16~17

TT2~TT1

I

CMOS

Switch to four operating modes:

0 0 normal mode

0 1 test mode 1

1 0 test mode 2

1 1 Reset

18~24

XIN0~XIN6

I

CMOS with

PMOS Pull-high Detect inputs from X-key matrix

25

VDD

¾¾

Positive power supply

26

XIN7

I

CMOS with

PMOS Pull-high Detect input from X-key matrix

27

MS

I

CMOS

Select system mode (Two modes provided:

One-key system mode and Two-key system

mode)

Approximate internal connection circuits

· Input terminal

HT6230

3

April 19, 2000

P i n : M S , T T 1 , T T 2 , O S C

P i n : X IN0 ~ X I N7 , Z IN0 ~ Z I N3

( w i th p u l l - h i g h r e s i s to r )

V DD

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HT6230 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

HT6230 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc

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