ETC HT604L(20SOP)

HT604L/HT614/HT692
318 Series of Decoders
Features
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Operating voltage: 2.4V~12V
Low power and high noise immunity CMOS
technology
Low standby current
Capable of decoding 18 bits of information
Pairs with Holtek¢s 318 series of encoders
9~10 address pins
2~8 data pins
Trinary address setting
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Two times of receiving check
Built-in oscillator needs only a 5% resistor
Valid transmission indicator
Easy interface with an RF or an infrared
transmission medium
Minimal external components
HT604L/HT614: 20-pin DIP/SOP package
HT692: 18-pin DIP package
Applications
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Burglar alarm system
Smoke and fire alarm system
Garage door controllers
Car door controllers
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Car alarm system
Security system
Cordless telephones
Other remote control systems
General Description
The 318 decoders are a series of CMOS LSIs for
remote control system applications. They are
paired with the 318 series of encoders. For
proper operation, a pair of encoder/decoder pair
with the same number of address and data format should be selected (refer to the encoder/decoder cross reference tables).
encountered, the input data codes are decoded
and then transferred to the output pins. The VT
pin also goes high to indicate a valid transmission.
The 318 decoders are capable of decoding 18 bits
of information that consists of N bits of address
and 18-N bits of data. To meet various applications they are arranged to provide a number of
data pins whose range is from 0 to 8 and an address pin whose range is from 8 to 18. In addition, the 3 1 8 decoders provide various
combinations of address/data number in different packages.
The 318 series of decoders receive serial address
and data from that series of encoders that are
transmitted by a carrier using an RF or an IR
transmission medium. It then compares the serial input data twice continuously with its local
address. If no errors or unmatched codes are
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HT604L/HT614/HT692
Selection Table
Function Address
Data
VT
No.
Part No.
No. Type
Oscillator
Trigger
Package
HT604L
10
4
L
Ö
RC oscillator
DIN active ²Hi² 20 DIP/SOP
HT614
10
4
M
Ö
RC oscillator
DIN active ²Hi² 20 DIP/SOP
HT692
10
2
M
Ö
RC oscillator
DIN active ²Hi² 18 DIP
Note: Data type: M stands for momentary type data output.
L stands for latch type data output.
VT can be used as a momentary data output.
Block Diagram
O S C 2
O S C 1
O s c illa to r
D IN
B u ffe r
D iv id e r
D a ta S h ift
R e g is te r
L a tc h C ir c u it
C o m p a ra to r
C o n tr o l L o g ic
D a ta
D a ta D e te c to r
S y n c . D e te c to r
C o m p a ra to r
T r a n s m is s io n G a te C ir c u it
A d d re s s
B u ffe r
V D D
V T
V S S
Note: The address/data pins are available in various combinations (refer to the address/data table).
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HT604L/HT614/HT692
Pin Assignment
Latch series
Momentary series
1 0 -A d d re s s
2 -D a ta
1 0 -A d d re s s
4 -D a ta
1 0 -A d d re s s
4 -D a ta
A 1 1
1
2 0
V D D
A 1 1
1
2 0
V D D
D 1 2
2
1 9
A 9
D 1 2
2
1 9
A 9
A 1 1
1
1 8
V D D
3
1 8
A 8
A 1 2
2
1 7
A 9
3
1 6
A 8
4
1 5
A 7
D 1 3
3
1 8
A 8
D 1 3
D 1 4
4
1 7
A 7
D 1 4
4
1 7
A 7
D 1 5
V T
5
1 6
A 6
D 1 5
5
1 6
A 6
D 1 4
D 1 5
6
1 5
A 4
V T
6
1 5
A 4
V T
5
1 4
A 6
D IN
7
1 4
A 3
D IN
7
1 4
A 3
D IN
6
1 3
A 3
O S C 2
O S C 1
8
1 3
A 2
8
1 3
A 2
O S C 2
7
1 2
A 2
9
1 2
A 1
O S C 2
O S C 1
9
1 2
A 1
O S C 1
8
1 1
A 1
A 0
V S S
1 0
1 1
A 0
V S S
9
1 0
A 0
V S S
1 0
1 1
H T 6 1 4
2 0 D IP /S O P
H T 6 0 4 L
2 0 D IP /S O P
H T 6 9 2
1 8 D IP
Pin Description
Pin Name
I/O
Internal
Connection
Description
TRANSMISSION Input pins for address A0~A12 setting
GATE
They can be externally set to VDD, VSS or left open.
A0~A12
I
D10~D17
O
CMOS OUT
DIN
I
CMOS IN
VT
O
CMOS OUT
OSC1
I
OSCILLATOR
Oscillator input pin
OSC2
O
OSCILLATOR
Oscillator output pin
VSS
¾
¾
Negative power supply, ground
VDD
¾
¾
Positive power supply
Output data pins
Serial data input pin
Valid transmission, active high
Approximate internal connections
T R A N S M IS S IO N
G A T E
C M O S O U T
C M O S IN
O S C IL L A T O R
E N
O S C 1
3
O S C 2
September 8, 2000
HT604L/HT614/HT692
Absolute Maximum Ratings
Supply Voltage...............................-0.3V to 13V
Storage Temperature.................-50°C to 125°C
Input Voltage .................VSS-0.3V to VDD+0.3V
Operating Temperature ..............-20°C to 75°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum 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
exposure to extreme conditions may affect device reliability.
Electrical Characteristics
Symbol
Parameter
VDD
Operating Voltage
ISTB
Standby Current
IDD
Operating Current
IO
IVT
Data Output Source Current
(D10~D17)
Data Output Sink Current
(D10~D17)
VT Output Source Current
VT Output Sink Current
Ta=25°C
Test Conditions
Min.
Typ.
3
¾
12
V
¾
0.1
1
mA
¾
2
4
mA
¾
0.2
1
mA
VOH=4.5V
-0.5
-1
¾
mA
VOL=0.5V
0.25
1
¾
mA
VOH=4.5V
-2
-4
¾
mA
VOL=0.5V
0.25
1
¾
mA
VDD
Conditions
¾
¾
5V
12V
5V
Oscillator stops
No load
fOSC=100kHz
Max. Unit
5V
5V
VIH
²H² Input Voltage
5V
¾
3.5
¾
5
V
VIL
²L² Input Voltage
5V
¾
0
¾
1
V
fOSC
Oscillator Frequency
10V ROSC=330kW
¾
100
¾
kHz
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HT604L/HT614/HT692
Functional Description
Flowchart
Operation
18
The 3 series of decoders provide various combinations of address and data pins in different
packages. It is paired with the 318 series of
encoders. The decoders receive data transmitted by the encoders and interpret the first N
bits of the code period as address and the last
18-N bits as data (where N is the address code
number). A signal on the DIN pin then activates the oscillator which in turns decodes the
incoming address and data. The decoders will
check the received address twice continuously.
If all the received address codes match the contents of the decoder¢s local address, the 18-N
bits of data are decoded to activate the output
pins, and the VT pin is set high to indicate a
valid transmission. That will last until the address code is incorrect or no signal has been received. The output of the VT pin is high only
when the transmission is valid. Otherwise it is
always low.
P o w e r o n
S ta n d b y m o d e
N o
D is a b le V T &
ig n o r e th e r e s t o f
th is w o r d
C o d e in ?
Y e s
A d d r e s s b its
m a tc h e d ?
N o
Y e s
S to re d a ta
M a tc h
p r e v io u s s to r e d
d a ta ?
N o
Y e s
N o
Output type
There are two types of output to select from:
2 tim e s
o f c h e c k in g
c o m p le te d ?
Y e s
· Momentary type
L a tc h /M o m e n ta ry
d a ta to o u tp u t &
a c tiv a te V T
The data outputs follow the encoder during a
valid transmission and then reset.
· Latch type
N o
The data outputs follow the encoder during a
valid transmission, and are then latched in
this state until the next valid transmission
occurs.
A d d re s s o r
d a ta e rro r ?
Y e s
Note: 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 should be kept
²low² if there is no signal input.
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HT604L/HT614/HT692
Decoder timing
E n c o d e r
T r a n s m is s io n
E n a b le
< 1 w o rd
E n c o d e r
D a ta O u t
T r a n s m itte d
C o n tin u o u s ly
3 w o rd s
2
2 w o rd s
D e c o d e r V T
c h e c k
1 4
3 w o rd s
2
c lo c k s
1 4
c lo c k s
c h e c k
M o m e n ta ry
D a ta O u t
1 /2 c lo c k p e r io d
1 /2 c lo c k p e r io d
L a tc h e d
D a ta O u t
Encoder/Decoder selection tables
· Latch type of data output
Part No.
HT604L
Data Address
VT
Pins
Pins
4
10
Ö
Package
Pair Encoder
Encoder
Decoder
DIP SOP SKDIP DIP
HT600
20
20
HT6207
20
¾
¾
20
SOP SKDIP
20
¾
· Momentary type of data output
Package
Data
Pins
Address
Pins
VT
HT692
2
10
Ö
HT614
4
10
Ö
Part No.
Pair Encoder
Encoder
Decoder
DIP SOP SKDIP DIP
HT680
18
¾
HT600
20
20
HT6207
20
¾
6
SOP SKDIP
¾
18
¾
¾
¾
20
20
¾
September 8, 2000
HT604L/HT614/HT692
Address/Data sequence
The following provides a table of address/data sequence for various models of the 318 series decoders. A
correct device should be selected according to the sindividual address and data requirements.
Part No.
Address/Data Bits
0~3
4
5
6~9
10
11
12
13
14
15
16
17
HT604L
A0~A3
A4
¾
A6~A9
¾
A11
D12
D13
D14
D15
¾
¾
HT614
A0~A3
A4
¾
A6~A9
¾
A11
D12
D13
D14
D15
¾
¾
HT692
A0~A3
¾
¾
A6~A9
¾
A11
A12
¾
D14
D15
¾
¾
Note: ²¾² is a dummy code which is left ²open² and not bonded out.
Oscillator frequency vs supply voltage
fo s c
(S c a le )
R o s c (9 )
3 .0 0
2 .7 5
1 2 0 k
2 .5 0
2 .2 5
2 .0 0
1 5 0 k
1 .7 5
1 8 0 k
1 .5 0
2 2 0 k
1 .2 5
2 7 0 k
(1 0 0 k H z ) 1 .0 0
3 3 0 k
3 9 0 k
4 7 0 k
5 6 0 k
6 8 0 k
8 2 0 k
1 M
1 .5 M
2 M
0 .7 5
0 .5 0
0 .2 5
2
3
4
5
6
7
8
9
1 0
1 1
1 2 1 2 .5 V
D D
(V D C )
The recommended oscillator frequency is fOSCD (decoder) @ fOSCE (encoder)
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HT604L/HT614/HT692
Application Circuits
R e c e iv e r C ir c u it
R e c e iv e r C ir c u it
V
1
A 1 1
2
A 1 2
A 9
D 1 4
A 8
D 1 5
A 7
V T
A 6
D IN
A 3
O S C 2
A 2
O S C 1
A 1
V S S
A 0
3
4
5
6
7
R o s c
9
8
V D D
V
D D
1
1 8
2
1 7
3
1 6
4
1 5
5
1 4
6
1 3
7
1 2
8
1 1
R o s c
1 0
9
1 0
H T 6 9 2
A 1 1
V D D
D 1 2
A 9
D 1 3
A 8
D 1 4
A 7
D 1 5
A 6
V T
A 4
D IN
A 3
O S C 2
A 2
O S C 1
A 1
V S S
A 0
D D
2 0
1 9
1 8
1 7
1 6
1 5
1 4
1 3
1 2
1 1
H T 6 1 4 /H T 6 0 4 L
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Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
Holtek Semiconductor Inc. (Taipei Office)
11F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan
Tel: 886-2-2782-9635
Fax: 886-2-2782-9636
Fax: 886-2-2782-7128 (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: 852-2-745-8288
Fax: 852-2-742-8657
Holtek Semiconductor (Shanghai) Ltd.
7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China
Tel: 021-6485-5560
Fax: 021-6485-0313
Holmate Technology Corp.
48531 Warm Springs Boulevard, Suite 413, Fremont, CA 94539
Tel: 510-252-9880
Fax: 510-252-9885
Copyright ã 2000 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 present 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.
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September 8, 2000