HT6230 datasheet(3/8 Pages) HOLTEK

номер детали	HT6230

подробное описание детали	Infrared Remote Encoder

PDF	8 Pages

Scroll/Zoom	100%

производитель	HOLTEK [Holtek Semiconductor Inc]

домашняя страница	http://www.holtek.com

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Pad Description

Pad No.

Pad Name

I/O

Internal

Connection

Description

1~3

ZIN1~ZIN3

ZIN0

CMOS with

PMOS Pull-high Detect inputs from Z-key matrix

MCODE

Tri-state

CMOS

Generate modulation output data code with

1/12 system frequency and 1/4 duty cycle

CODE

Tri-state

CMOS

Generates output data code

6~10

DRS7~DRS3

Open Drain

NMOS

Drive for key scanning

VSS

¾¾

Negative power supply, ground

12~14

DRS2~DRS0

Open Drain

NMOS

Drive for key scanning

OSC

CMOS

Oscillator input

16~17

TT2~TT1

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

CMOS with

PMOS Pull-high Detect inputs from X-key matrix

VDD

¾¾

Positive power supply

XIN7

CMOS with

PMOS Pull-high Detect input from X-key matrix

CMOS

Select system mode (Two modes provided:

One-key system mode and Two-key system

mode)

Approximate internal connection circuits

· Input terminal

HT6230

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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