Datasheet HT6032, HT6034, HT6030 Datasheet (Holtek Semiconductor Inc)

Features

Operating voltage: 2.4V~12V

·

Low power and high noise immunity CMOS

·

technology
Low standby current

·

Capable of decoding 12 bits of information

·

Pair with Holtek¢s312series of encoders

·

8~12 address pins

·

0~4 data pins

·

Trinary address setting

·

Applications

Burglar alarm system

·

Smoke and fire alarm system

·

Garage door controllers

·

Car door controllers

·

General Description

The 312decoders are a series of CMOS LSIs for
remote control system applications. They are
paired with 3
operation a pair of encoder/decoder with the
same number of address and data format
should be selected (refer to the encoder/decoder
cross reference tables).

12

The 3
and data from its corredponding series of
encoders that are transmitted by a carrier us­ing an RF or an IR transmission medium. Then
it compares the serial input information twice
continuously with its local address. If no errors

12

series of encoders. For proper

series of decoders receive serial address

12

3

Series of Decoders

Received data are checked two times

·

Built-in oscillator needs only 5% resistor

·

VT goes high during a valid transmission

·

Easy interface with an RF or an infrared

·

transmission medium
Minimal external components

·

Package information: refer to Selection

·

Table

Car alarm system

·

Security system

·

Cordless telephones

·

Other remote control systems

·

or unmatched codes are encountered, the input
data codes are decoded and transferred to the
output pins. The VT pin also goes high to indi­cate a valid transmission.

12

The 3
ing 12 bits of information that consists of N bits
of address and 12-N bits of data. To meet vari­ous applications they are arranged to provide a
number of data pins ranging from 0 to 4 and an
address pin ranging from 8 to 12. Thus, various
combinations of address/data number are
available in different packages.

series of decoders are capable of decod-

1 December 13, 1999

Selection Table

312Series of Decoders

Function

Part No. No. Type

Address

No.

HT6030 12 0

HT6032 10 2 L

HT6034 8 4 L

Data

¾Ö

VT Oscillator Trigger Package

RC oscillator

RC oscillator

Ö

RC oscillator

Ö

Note: Data type: L stands for latch type data output.

VT can be used as a momentary data output.

Block Diagram

OSC1

OSC2

DIN

O scillator

B u ffe r

Sync. D etector

D ivider

D a ta D e te c to r

C om parator Com parator

D a ta S h ift

R egister

DIN active ²Hi²

DIN active ²Hi²

DIN active ²Hi²

Latch C ircuit

C ontrol Logic

Buffer Tran sm ission G ate C ircuit

18 DIP/20 SOP

18 DIP/20 SOP

18 DIP/20 SOP

Data

VT

Address

VDD VSS

Note: The address/data pins are available in various combinations (refer to the address/data table).

2 December 13, 1999

Pin Assignment

312Series of Decoders

12-A d dress
0 -D a ta

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

10-A d dress
2 -D a ta

NC

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

10

H T6032

H T6030

18 D IP

2 0 S O P

NC

VDD

VT

OSC2

OSC1

DIN

A11

A10

A9

A8

VDD

VT

OSC2

OSC1

DIN

D11

D10

D9

D8

10-A d dress
2 -D a ta

A0

1

A1

2

A2

3

A3

4

A4

5

A5

6

A6

7

A7

8

VSS

9

H T6032

8-A ddress
4-D ata

NC

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

10

H T6034

2 0 S O P

18 D IP

18

VDD

17

VT

16

OSC2

15

OSC1

14

DIN

13

D11

12

D10

11

A9

10

A8

20

NC

19

VDD

18

VT

17

OSC2

16

OSC1

15

DIN

14

D11

13

D10

12

D9

11

D8

12-A d dress
0 -D a ta

NC

18

VDD

17

VT

16

OSC2

15

OSC1

14

DIN

13

A11

12

A10

11

A9

10

A8

A0

A1

A2

A3

A4

A5

A6

A7

VSS

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

H T6030

2 0 S O P

8-A ddress
4-D ata

20

NC

19

VDD

18

VT

17

OSC2

16

OSC1

15

DIN

14

D11

13

D10

12

A9

11

A8

A0

A1

A2

A3

A4

A5

A6

A7

VSS

1

2

3

4

5

6

7

8

9

18

17

16

15

14

13

12

11

10

H T6034

18 D IP

3 December 13, 1999

Pin Description

312Series of Decoders

Pin Name I/O

A0~A11 I

Internal

Connection

TRANSMISSION

GATE

Description

Input pins for address A0~A11 setting
They can be externally set to VDD, VSS, or left open.

D8~D11 O CMOS OUT Output data pins

DIN I CMOS IN Serial data input pin

VT O CMOS OUT Valid transmission, active high

OSC1 I OSCILLATOR Oscillator input pin

OSC2 O OSCILLATOR Oscillator output pin

VSS

VDD

¾¾

¾¾

Negative power supply, ground

Positive power supply

Approximate internal connections

TRANSM ISSIO N

GATE

CMOS OUT

CMOS IN OSCILLATOR

OSC1

EN

OSC2

Absolute Maximum Ratings

Supply Voltage...............................-0.3V to 13V

Input Voltage....................V

-0.3 to VDD+0.3V

SS

Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi

mum Ratings² may cause substantial damage to the device. Functional operation of this device
at other conditions beyond those listed in the specification is not implied and prolonged expo
sure to extreme conditions may affect device reliability.

Storage Temperature.................-50°Cto125°C

Operating Temperature ..............-20°Cto75°C

4 December 13, 1999

-

-

312Series of Decoders

Electrical Characteristics

Symbol Parameter

V

I

STB

I

DD

I

O

I

VT

V

V

f

OSC

DD

IH

IL

Operating Voltage

Standby Current

Operating Current 5V

Data Output Source
Current (D8~D11)

Data Output Sink
Current (D8~D11)

VT Output Source Current

VT Output Source Current
Only For HT6033/35/45

VT Output Sink Current

VT Output Sink Current
Only For HT6033/35/45

²H² Input Voltage

²L² Input Voltage

Oscillator Frequency 5V

Test Conditions

V

DD

Conditions

¾¾

5V

Oscillator stops

12V

No load
f

=100kHz

OSC

=4.5V

V

5V

OH

=0.5V

V

5V

OL

V

=4.5V

OH

5V

V

=0.5V

OL

5V

5V

R

¾

¾

=91kW¾

OSC

Ta=25°C

Min. Typ. Max. Unit

2.4 5 12 V

¾

¾

¾

-0.5 -1 ¾

0.5 1

0.1 1

24

250 500

¾

mA

mA

mA

mA

mA

-2 -4 ¾

-0.35 -0.6 ¾

mA

12

0.35 0.6

3.5

0

¾

¾

100

¾

¾

5V

1V

kHz

¾

5 December 13, 1999

Functional Description

312Series of Decoders

Operation

12

The 3
binations of address and data pins in different
packages. They are paired with 3

series of decoders provide various com

12

series of
encoders. The decoders receive data transmit
ted by the encoders and interpret the first N
bits of the code period as addresses and the last
12-N bits as data (where N is the address code
number). A signal on the DIN pin then acti
vates the oscillator which in turn decodes the
incoming address and data. The decoders check
the received address twice continuously. If all
the received address codes match the contents
of the decoder¢s local address, the 12-N bits of
data are decoded to activate the output pins
and the VT pin is set high indicating a valid
transmission. That will last until the address
code is incorrect or no signal is received.

The output of the VT pin is high only when the
transmission is valid. Otherwise it is always low.

Output type

The data outputs follow the encoders during a
valid transmission and are then latched in
this state until the next valid transmission
occurs.

-

-

-

Flowchart

No

No

Power on

Standby m ode

A re

C ode in ?

Yes

Address bits

m atched ?

Yes

Store data

Match

previously stored

data ?

Yes

2 tim es

of checking

com pleted ?

Yes

Latch/M om entary

data to output &

activate V T

D isable V T &

ignore the rest of

th is w o rd

No

No

No

Address or

data error ?

Yes

The oscillator is disabled in the standby state
and activated as long as a logic ²high² signal is
applied to the DIN pin. i.e., the DIN pin should
be kept ²low² if there is no signal input.

6 December 13, 1999

Decoder timing

Encoder

Transm ission

Enable

Encoder

Data Out

D ecoder V T

M om entary

Data Out

Latched

Data Out

< 1 w ord

3 w ords 3 w ords

2 w ords

check

14

2 clo cks

1/2 clock period 1/2 clock period

Transm itted

C ontinuously

check

Encoder/Decoder cross reference tables

Part No. Data Pins Address Pins VT Pair Encoder

HT6030 0 12

Ö

HT6010 18, 20 20 18 20

HT6010 18, 20 20 18 20

HT6032 2 10

Ö

HT6012 18 20 18 20

HT6010 18, 20 20

HT6034 4 8

Ö

HT6014 18 20

312Series of Decoders

14

2 clo cks

Package

Encoder Decoder

DIP SOP DIP SOP

18 20

Address/Data sequence

The following table describes the position of the address/data sequence for various models of the 3

12

se­ries of decoders. A correct device should be selected according to the requirements of individual address
and data.

Address/Data Bits

Part No.

0 1 2 3 4 5 6 7 8 9 10 11

HT6030 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11

HT6032 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 D10 D11

HT6034 A0 A1 A2 A3 A4 A5 A6 A7 D8 D9 D10 D11

7 December 13, 1999

Oscillator frequency vs supply voltage

OSC

f

(S cale)

2.00

312Series of Decoders

OSC

R

(9)

1.75

1.50

1.25

(100kH z) 1.00

0.75

0.5

0.25

2.4 3 4 5 6 7 8

The recommended oscillator frequency is f

910111213

(decoder) @ 33 f

OSCD

OSCE

62k

91k

180k

270k

390k
560k

820k
2M

(encoder)

VDD (V D C )

8 December 13, 1999

Application Circuits

312Series of Decoders

R e c e iv e r C ir c u it

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

H T6030

VDD

VT

OSC2

OSC1

DIN

A11

A10

A9

A8

V

DD

18

17

16

R

OSC

15

14

13

12

11

10

R e c e iv e r C ir c u it

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

H T6034

Note: Typical infrared receiver: PIC-12043T/PIC-12043S (KODESHI CORP.)

or LTM9052 (LITEON CORP.)

Typical RF receiver: JR-200 (JUWA CORP.)

RE-99 (MING MICROSYSTEM, U.S.A.)

VDD

VT

OSC2

OSC1

DIN

D11

D10

D9

D8

V

DD

18

17

16

R

OSC

15

14

13

12

11

10

9 December 13, 1999

312Series of Decoders

Holtek Semiconductor Inc. (Headquarters)

No.3 Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]

Holtek Semiconductor Inc. (Taipei Office)

5F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan, R.O.C.
Tel: [phone]
Fax: [phone]
Fax: [phone] (International sales hotline)

Holtek Semiconductor (Hong Kong) Ltd.

RM.711, Tower 2, Cheung Sha Wan Plaza, 833 Cheung Sha Wan Rd., Kowloon, Hong Kong
Tel: [phone]
Fax: [phone]

Copyright Ó 1999 by HOLTEK SEMICONDUCTOR INC.

The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek
assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are
used solely for the purpose of illustration and Holtek makes no warranty or representation that such applications
will be suitable without further modification, nor recommends the use of its products for application that may pres
ent a risk to human life due to malfunction or otherwise. Holtek reserves the right to alter its products without prior
notification. For the most up-to-date information, please visit our web site at http://www.holtek.com.tw.

10 December 13, 1999

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