Datasheet HT6010, HT6012, HT6014 Datasheet (Holtek Semiconductor Inc)

Features

Operating voltage: 2.4V~12V

·

Low power and high noise immunity CMOS

·

technology
Low standby current

·

Minimum transmission word

·

-

Four words for TE trigger

-

One word for Data trigger

Applications

Burglar alarm system

·

Smoke and fire alarm system

·

Garage door controllers

·

Car alarm system

·

General Description

The 312encoders are a series of CMOS LSIs for
remote controlsystem applications. They are ca
pable of encoding 12 bits of information which
consists of N address bits and 12-N data bits.
Each address/data input is externally trinary
programmable if bonded out.They are otherwise
set floating internally. Various packages of the

12

3

encoders offer flexible combinations of

12

3

-

Series of Encoders

Built-in oscillator needs only 5% resistor

·

Easy interface with an RF or an infrared

·

transmission medium
Minimal external components

·

Package information: refer to Selection

·

Table

Security system

·

Cordless telephones

·

Other remote control systems

·

programmable address/data which meet vari
ous applications. The programmable ad
dress/data is transmitted together withthe header
bits via an RFor an infrared transmissionmedium
upon receipt of a trigger signal. A TE
a DATA (HT6012/HT6014) trigger can be se­lectedforapplicationflexibility.

-

-

(HT6010) or

Selection Table

Function

Part No.

HT6010 8 4 0 RC oscillator TE

HT6012 10 0 2 RC oscillator D10~D11 Yes 18 DIP/20 SOP

HT6014 8 0 4 RC oscillator D8~D11 Yes 18 DIP/20 SOP

Note: Address/Data represents addressable pins or data according to the requirements of decoders.

Address

No.

Address/
Data No.

Data

No.

Oscillator Trigger

1 December 13, 1999

LED

Indicator

No

Package

18/20 DIP
20 SOP

Block Diagram

TE trigger

HT6010

OSC2

312Series of Encoders

OSC1

O s c illa to r

TE

A0

A7

12

Transm ission

G a te C ir c u it

AD8 AD11

DATA trigger

HT6012/HT6014

OSC2

O scillator

Address

Transm ission

G a te C ir c u it

12

OSC1

3 D ivider

¸

12 C ounter

¸

and 1 of 12

D ecoders

Trinary

Detector

3 D iv id e r

¸

12 C ounter

¸

and 1 of 12

D ecoders

Trinary

Detector

D ata S elect

and Buffer

Sync.

Circuit

VDD VSS

D ata S elect

and Buffer

Sync.

Circuit

LED Circuit

DOUT

DOUT

LED

Data

VDD VSS

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

2 December 13, 1999

Pin Assignment

T E tr ig g e r ty p e

312Series of Encoders

8-A d dress
4-A ddress/D ata

A0

A1

A2

A3

A4

A5

A6

A7

VSS

18

1

17

2

16

3

15

4

14

5

13

6

12

7

11

8

10

9

H T6010

18 D IP

DATA trigger type

10-A ddress
2 -D a ta

1

A0

A1

A2

A3

A4

A5

A6

A7

VSS

18

2

17

3

16

4

15

5

14

6

13

7

12

8

11

9

10

H T6012

18 D IP

VDD

DOUT

OSC2

OSC1

TE

AD11

AD10

AD9

AD8

VDD

DOUT

OSC2

OSC1

LED

D11

D10

A9

A8

8-A d dress
4-A ddress/D ata

NC

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

10

H T 6010

20 D IP/SOP

10-A ddress
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 T6012

2 0 S O P

NC

20

VDD

19

DOUT

18

OSC2

17

OSC1

16

TE

15

AD11

14

AD10

13

AD9

12

AD8

11

8-A d dress
4 -D a ta

20

NC

19

VDD

18

DOUT

17

OSC2

16

OSC1

15

LED

14

D11

13

D10

12

A9

11

A8

A0

A1

A2

A3

A4

A5

A6

A7

VSS

1

18

2

3

4

5

6

7

8

9

VDD

17

DOUT

16

OSC2

15

OSC1

14

LED

13

D11

12

D10

11

D9

10

D8

H T6014

18 D IP

8-A d dress
4-D ata

NC

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

10

H T6014

2 0 S O P

NC

20

VDD

19

DOUT

18

OSC2

17

OSC1

16

LED

15

D11

14

D10

13

D9

12

D8

11

3 December 13, 1999

Pin Description

312Series of Encoders

Pin Name I/O

A0~A9 I

AD8~AD11 I

D8~D11 I

Internal

Connection

TRANSMISSION

GATE

TRANSMISSION

GATE

CMOS IN
Pull-high

Description

Input pins for address A0~A9 setting
They can be externally set to VDD or VSS or left open.

Input pins for address/data (AD8~AD11) setting
They can be externally set to VDD or VSS or left open.

Input pins for data (D8~D11) setting and transmission en
able (active low)
They can be externally set to VSS or left open (see Note).

DOUT O CMOS OUT Encoder data serial transmission output

LED O NMOS OUT Transmission enable indicator, active low

TE

I

CMOS IN

Pull-high

Transmission enable, active low (see Note)

OSC1 I OSCILLATOR Oscillator input pin

OSC2 O OSCILLATOR Oscillator output pin

VSS

VDD

¾¾

¾¾

Negative power supply, ground

Positive power supply

Note: D8~D11 are data input and transmission enable pins of the HT6012/HT6014.

TE

is the transmission enable pin of the HT6010.

Approximate internal connections

-

TRANSM ISSIO N

GATE

OSCILLATOR

EN

OSC1

CMOS IN
Pull-high

OSC2

CMOS OUT NMOS OUT

4 December 13, 1999

Absolute Maximum Ratings

312Series of Encoders

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

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

-0.3 to VDD+0.3V

SS

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

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

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.

Electrical Characteristics

Ta=25°C

Test Conditions

Symbol Parameter

V

DD

I

STB

I

DD

I

LED

I

DOUT

V

IH

V

IL

f

OSC

R

TE

R

DATA

Operating Voltage

Standby Current

Operating Current

LED Sink Current 5V

Output Drive Current

²H² Input Voltage ¾¾

²L² Input Voltage ¾¾

Oscillator Frequency 5V

TE Pull-high Resistance 5V

D8~D11 Pull-high
Resistance

V

DD

Conditions

¾¾

3V

Oscillator stops

12V

3V

No load

=3kHz

f

OSC

12V

V

=0.5V

LED

V

5V

5V

5V

=0.9VDD(Source)

OH

V

=0.1VDD(Sink)

OL

=1MW¾3¾

R

OSC

V

=0V

TE

=0V

V

DATA

Min. Typ. Max. Unit

2.4 5 12 V

DD

0

0.1 1

24

250 500

600 1200

¾

¾

V

¾

¾

0.2V

DD

DD

mA

mA

mA

¾

¾

¾

¾

1.5 3

-0.6 -1.2 ¾

0.6 1.2

0.8V

kHz

¾

¾

1.5 3

1.5 3

MW

MW

mA

mA

mA

mA

V

V

-

-

5 December 13, 1999

312Series of Encoders

Functional Description

Operation

12

The 3
cycle upon receipt of a transmission enable (TE
tive low). This cycle will repeat itself as long as the transmission enable (TE
Once the transmission enable returns high the encoder output completes its final cycle and then stops
as shown below.

Information word

An information word is composed of four periods as shown:

series of encoders begin with a four (HT6010) or a one (HT6012/HT6014) word transmission

for the HT6010 or D8~D11 for the HT6012/HT6014, ac

or D8~D11) is held low.

TE or

D 8~D 11

< 1 w ord

Encoder

Data Out

1 or 4 w ords

Transm itted

C ontinuously

1 or 4
words

Transmission timing

1/6 bit sync. period

-

pilot period (6 bits)

address code period

Composition of information

6 December 13, 1999

data code

period

312Series of Encoders

Address/data waveform

Each programmable address/data pin can be externally set to one of the following three logic states:

f

OSC

"O n e"

"Z ero"

"O pen"

Address/D ata B it

Address/Data bit waveform

The ²Open² state data input is interpreted as logic high by the decoder since its output has only two
states.

Address/data programming (preset)

The status of each address/data pin can be individually preset to a logic ²high², ²low²,or²floating².If
a transmission enable signal is applied, the encoder scans and transmits the status of the 12 bits of
address/data serially in the order A0 to AD11 for the HT6010 and A0 to D11 for the HT6012/HT6014.

If the trigger signal is not applied, the chip only consumes a standby current which is less than 1mA

DD

=5V).

(for V

The address pins are usually preset so as to transmit data codes with their own particular security codes
by the DIP switches or PCB wiring, while data is selected using push button or electronic switches.

Address/Data sequence

The following table provides the position of the address/data sequence for various models of the 3
series encoders. A correct device should be selected according to the requirements of the individual
address and data.

Address/Data Bits

Part No.

01234567891011

HT6010 A0 A1 A2 A3 A4 A5 A6 A7 AD8 AD9 AD10 AD11

HT6012 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 D10 D11

HT6014 A0 A1 A2 A3 A4 A5 A6 A7 D8 D9 D10 D11

7 December 13, 1999

12

312Series of Encoders

Transmission enable

For the TE
But for the Data trigger type, it is enabled by applying a low signal to one of the data pins D8~D11.

Flowchart

trigger type of encoders, transmission is enabled by applying a low signal to the TE pin.

Power on

Standby m ode

No

No

Transm ission

enabled ?

Yes

C ode w ord

transm itted

continuously

Transm ission

still enabled ?

Yes

C ode w ord

transm itted

continuously

Note: D8~D11 are transmission enable of the HT6012/HT6014.

is the transmission enable of the HT6010.

TE

8 December 13, 1999

Oscillator frequency vs supply voltage

OSC

f

(S cale)

7.00

6.00

5.00

4.00

(3kH z)3.0 0

312Series of Encoders

OSC

(W)

R

470k

510k

560k

620k

680k

750k

820k

910k

1.0M

1.2M

2.00

1.00

2 3 4

5 6 7 8 9 10 11 12 13

The recommended oscillator frequency is f

(decoder) @ 33 f

OSCD

OSCE

1.5M

2.0M

VDD (V D C )

(encoder)

9 December 13, 1999

Application Circuits

312Series of Encoders

Transm itter C ircuit

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

VDD

DOUT

OSC2

OSC1

TE

AD11

AD10

AD9

AD8

H T 6010

Transm itter C ircuit

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

VDD

DOUT

OSC2

OSC1

LED

D11

D10

D9

D8

V

DD

18

17

16

R

OSC

15

14

13

12

11

10

Transm itter C ircuit

1

A0

2

A1

3

A2

4

A3

5

A4

6

A5

7

A6

8

A7

9

VSS

VDD

DOUT

OSC2

OSC1

LED

D11

D10

A9

A8

V

DD

18

17

16

R

OSC

15

14

13

12

11

10

R

H T 6012

V

DD

18

17

16

R

OSC

15

14

13

12

11

10

R

H T 6014

Note: Typical infrared diode: EL-1L2 (KODENSHI CORP.)

Typical RF transmitter: JR-220 (JUWA CORP.)

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

10 December 13, 1999

312Series of Encoders

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 theuse ofthe 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.

11 December 13, 1999

-