HT604 [HOLTEK]
318 Series of Decoders; 318系列的解码器
| 型号： | HT604 |
| 厂家： | 
HOLTEK SEMICONDUCTOR INC |
| 描述： | 318 Series of Decoders |
| 文件： | 总9页 (文件大小：108K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HT604L/614/692
318 Series of Decoders
Features
·
·
Operating voltage: 2.4V~12V
·
·
·
·
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
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
·
·
Minimal external components
Package information: refer to Selection
Table
2~8 data pins
Trinary address setting
Applications
·
·
·
·
Burglar alarm system
Smoke and fire alarm system
Garage door controllers
Car door controllers
·
·
·
·
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 for-
mat should be selected (refer to the encoder/de-
coder cross reference tables).
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 se-
rial input data twice continuously with its local
address. If no errors or unmatched codes are
encountered, the input data codes are decoded
and then transferred to the output pins. The VT
pin also goes high to indicate a valid transmis-
sion.
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 applica-
tions they are arranged to provide a number of
data pins whose range is from 0 to 8 and an ad-
dress pin whose range is from 8 to 18. In addi-
tion, the 318 decoders provide various
combinations of address/data number in differ-
ent packages.
1
April 24, 2000
HT604L/614/692
Selection Table
Function
Part No.
HT604L
Data
Address
No.
VT Oscillator
Trigger
Package
No. Type
10
10
10
4
4
2
L
RC oscillator
RC oscillator
RC oscillator
20 DIP/SOP
20 DIP/SOP
18 DIP
Ö
Ö
Ö
DIN active ²Hi²
DIN active ²Hi²
DIN active ²Hi²
HT614
M
M
HT692
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
O
2
S
C
1
O
s
c
i
l
l
a
t
D
o
i
r
v
i
d
e
r
D
a
t
a
S
h
i
f
t
D
a
t
a
u i
L
a
t
c
h
C
i
r
c
t
R
e
g
i
s
t
e
r
D
I
N
B
u
f
f
e
r
D
a
t
a
D
e
t
e
c
t
o
r
S
y
n
c
.
D
C
e
o
t
e
m
c
p
t
a
o
r
r
a
t
o
r
C
C
o
o
m
n
p
t
r
a
o
r
l
a
t
L
o
o
r
g
i
c
V
T
T
r
a
n
s
m
i
s
s
i
o
n
G
a
t
e
C
B
i
u
r
c
f
f
u
e
i
r
t
A
d
d
r
e
s
s
V
D
D
V
S
S
Note: The address/data pins are available in various combinations (refer to the address/data table).
2
April 24, 2000
HT604L/614/692
Pin Assignment
Latch series
Momentary series
1
0
-
A
d
d
r
e
s
s
1
0
-
A
d
d
r
e
s
s
1
0
-
A
d
d
r
e
s
s
2
-
D
a
t
a
4
-
D
a
t
a
4
-
D
a
t
a
A
1
1
1
1
1
1
2
3
4
5
1
2
3
4
5
6
7
8
9
1
2
1
1
1
1
1
1
1
1
1
0
9
8
7
6
5
4
3
2
1
V
A
A
A
A
A
A
A
A
A
D
9
8
7
6
4
3
2
1
0
D
A
1
1
1
1
1
1
1
2
3
4
2
1
1
1
0
9
8
7
V
A
A
A
D
9
8
7
D
A
A
1
1
1
2
1
2
1
1
8
7
V
A
D
9
D
D
D
D
D
D
D
D
D
2
3
4
5
D
D
1
1
4
5
3
4
1
1
6
5
A
A
A
A
A
A
A
8
7
6
3
2
1
0
5
6
7
8
9
1
1
1
1
1
1
1
6
5
4
3
2
1
A
A
A
6
4
3
V
T
5
6
7
8
9
1
1
1
1
1
4
3
2
1
0
V
T
V
T
D
I
N
D
I
N
D
I
N
O
O
S
S
C
C
2
1
O
O
S
S
C
C
2
1
O
O
S
S
C
C
2
1
A
A
A
2
1
0
V
S
S
0
V
S
S
V
S
S
0
H
T
6
1
4
H
T
6
9
2
H
T
6
0
4
L
2
0
D
I
P
/
S
O
P
1
8
D
I
P
2
0
D
I
P
/
S
O
P
Pin Description
Internal
Connection
Pin Name I/O
Description
TRANSMISSION Input pins for address A0~A12 setting
A0~A12
I
GATE
CMOS OUT
CMOS IN
CMOS OUT
OSCILLATOR
OSCILLATOR
¾
They can be externally set to VDD, VSS or left open.
D10~D17
DIN
O
I
Output data pins
Serial data input pin
VT
O
I
Valid transmission, active high
Oscillator input pin
OSC1
OSC2
VSS
O
¾
¾
Oscillator output pin
Negative power supply, ground
Positive power supply
VDD
¾
Approximate internal connections
T
R
A
N
S
M
I
S
S
I
O
N
C
M
O
S
O
U
T
C
M
O
S
I
N
O
S
C
I
L
L
A
T
O
R
G
A
T
E
E
N
O
S
C
2
O
S
C
1
3
April 24, 2000
HT604L/614/692
Absolute Maximum Ratings
Supply Voltage...............................-0.3V to 13V
Input Voltage.................VSS-0.3V to VDD+0.3V
Storage Temperature.................-50°C to 125°C
Operating Temperature ..............-20°C to 75°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 de-
vice at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
Electrical Characteristics
Ta=25°C
Test Conditions
Symbol
VDD
Parameter
Operating Voltage
Standby Current
Min. Typ. Max. Unit
VDD
Conditions
3
12
1
V
¾
5V
¾
¾
0.1
2
¾
¾
mA
mA
ISTB
Oscillator stops
12V
4
No load
fOSC=100kHz
IDD
Operating Current
5V
5V
0.2
-1
1
1
mA
mA
mA
¾
-0.5
0.5
Data Output Source Current
(D10~D17)
VOH=4.5V
¾
¾
IO
Data Output Sink Current
(D10~D17)
VOL=0.5V
V
OH=4.5V
OL=0.5V
¾
VT Output Source Current
VT Output Sink Current
²H² Input Voltage
mA
mA
V
-2
1
-4
2
¾
¾
5
IVT
5V
V
VIH
VIL
5V
5V
3.5
0
¾
1
V
²L² Input Voltage
¾
¾
fOSC
Oscillator Frequency
10V
100
kHz
ROSC=330kW
¾
¾
4
April 24, 2000
HT604L/614/692
Functional Description
Operation
Flowchart
The 318 series of decoders provide various com-
binations of address and data pins in different
packages. It is paired with the 318 series of
encoders. The decoders receive data transmit-
ted 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 acti-
vates 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 con-
tents 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 ad-
dress code is incorrect or no signal has been re-
ceived. 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
t
a
n
d
b
y
m
o
d
e
D
i
s
a
b
l
e
V
T
&
N
o
C
o
d
e
i
n
?
i
g
n
o
r
e
t
h
e
r
e
s
t
o
f
t
h
i
s
w
o
r
d
Y
e
s
N
o
A
d
d
r
e
s
s
b
i
t
s
m
a
t
c
h
e
d
?
Y
e
s
S
t
o
r
e
d
a
t
a
M
a
t
c
h
N
o
p
r
e
v
i
o
u
s
s
t
o
r
e
d
d
a
t
a
?
Y
e
s
2
t
i
m
e
s
N
o
o
f
c
h
e
c
k
i
n
g
Output type
c
o
m
p
l
e
t
e
d
?
There are two types of output to select from:
Y
e
s
·
Momentary type
L
a
t
c
h
/
M
o
m
e
n
t
a
r
y
The data outputs follow the encoder during a
valid transmission and then reset.
d
a
t
a
t
o
o
u
t
p
u
t
&
a
c
t
i
v
a
t
e
V
T
·
Latch type
N
o
A
d
d
r
e
s
s
o
r
The data outputs follow the encoder during a
valid transmission, and are then latched in
this state until the next valid transmission
occurs.
d
a
t
a
e
r
r
o
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.
5
April 24, 2000
HT604L/614/692
Decoder timing
E
n
c
o
d
e
r
T
r
a
n
s
m
i
s
s
i
o
n
E
n
a
b
l
e
<
1
w
o
r
d
E
n
c
o
d
e
r
D
a
t
a
O
u
t
T
r
a
n
s
m
i
t
t
e
d
w
3
w
o
r
d
s
3
o
r
d
s
C
o
n
t
i
n
u
o
u
s
l
y
1
4
1
4
2
c
l
o
c
k
s
2
c
l
o
c
k
s
2
w
o
r
d
s
D
e
c
o
d
e
r
V
T
c
h
e
c
k
c
h
e
c
k
M
o
m
e
n
t
a
r
y
D
a
t
a
O
u
t
1
/
2
c
l
o
c
k
p
1
e
/
r
2
i
o
c
d
l
o
c
k
p
e
r
i
o
d
L
a
t
c
h
e
d
D
a
t
a
O
u
t
Encoder/Decoder selection tables
·
Latch type of data output
Package
Data Address
Part No.
VT Pair Encoder
Encoder
Decoder
Pins
Pins
DIP SOP SKDIP DIP SOP SKDIP
HT600
20
20
20
HT604L
4
10
20
20
Ö
¾
¾
HT6207
¾
·
Momentary type of data output
Package
Data Address
Part No.
VT Pair Encoder
Encoder
Decoder
Pins
Pins
DIP SOP SKDIP DIP SOP SKDIP
HT692
HT614
2
4
10
10
HT680
HT600
HT6207
18
20
20
18
Ö
Ö
¾
20
¾
¾
¾
¾
¾
¾
20
20
6
April 24, 2000
HT604L/614/692
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.
Address/Data Bits
Part No.
0~3
4
5
6~9
10
¾
¾
¾
11
12
13
14
15
16
¾
¾
¾
17
¾
¾
¾
HT604L
HT614
HT692
A0~A3
A0~A3
A0~A3
A4
A4
¾
A6~A9
A6~A9
A6~A9
A11 D12 D13 D14 D15
A11 D12 D13 D14 D15
¾
¾
¾
A11 A12
D14 D15
¾
Note:
²¾² is a dummy code which is left ²open² and not bonded out.
Oscillator frequency vs supply voltage
f
o
s
c
(
S
c
a
l
e
)
W
R
o
s
)
c
(
3
2
2
2
2
1
.
0
0
.
.
.
.
7
5
2
0
5
0
1
1
2
5
0
0
k
k
5
0
.
7
5
1
2
8
2
0
0
k
k
1
1
.
.
5
2
0
5
2
3
7
3
0
0
k
k
(
1
0
0
k
H
z
)
1
.
0
0
3
4
9
7
0
0
k
k
0
0
0
.
.
.
7
5
2
5
0
5
5
6
8
1
1
2
6
8
2
M
.
M
0
0
0
k
k
k
5
M
1
1
1
0
2
1
2
.
5
( V
V
D
D
D
C
)
2
3
4
5
6
7
8
9
1
The recommended oscillator frequency is fOSCD (decoder) @ fOSCE (encoder)
7
April 24, 2000
HT604L/614/692
Application Circuits
R
e
c
e
i
v
e
r
C
i
r
c
u
i
t
R
e
c
e
i
v
e
r
C
i
r
c
u
i
t
V
D
D
V
D
D
1
2
3
4
2
1
1
1
1
0
9
8
7
6
A
D
D
D
D
V
D
O
O
V
1
1
V
D
D
1
1
1
1
1
1
1
1
1
8
7
6
5
4
3
2
1
0
1
A
A
D
D
V
D
O
O
V
1
1
1
2
V
D
D
1
1
1
1
2
3
4
5
A
A
A
A
A
A
A
A
A
9
8
7
6
4
3
2
1
0
2
3
A
A
A
A
A
A
A
A
9
8
7
6
3
2
1
0
1
1
4
5
4
5
6
7
8
9
5
T
6
7
8
9
1
1
1
1
1
5
4
3
2
1
T
S
I
N
I
N
S
S
C
C
2
1
R
o
s
c
S
S
C
C
2
1
R
o
s
c
S
S
1
0
S
H
T
6
9
2
H
T
6
1
4
/
H
T
6
0
4
L
Note: Typical infrared receiver: PIC-12043T/PIC-12043C (KODENSHI CORP.)
or LTM9052 (LITEON CORP.)
Typical RF receiver: JR-200 (JUWA CORP.)
RE-99 (MING MICROSYSTEM, U.S.A.)
8
April 24, 2000
HT604L/614/692
Holtek Semiconductor Inc. (Headquarters)
No.3 Creation Rd. II, Science-based Industrial Park, Hsinchu, Taiwan, R.O.C.
Tel: 886-3-563-1999
Fax: 886-3-563-1189
Holtek Semiconductor Inc. (Taipei Office)
5F, No.576, Sec.7 Chung Hsiao E. Rd., Taipei, Taiwan, R.O.C.
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
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 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.
9
April 24, 2000
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