HT6247 [HOLTEK]
3(18) Series of Encoders; 3 （ 18 ）系列编码器
| 型号： | HT6247 |
| 厂家： | 
HOLTEK SEMICONDUCTOR INC |
| 描述： | 3(18) Series of Encoders |
| 文件： | 总12页 (文件大小：157K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
318 Series of Encoders
Features
·
·
Operating voltage: 2.4V~12V
·
·
Built-in oscillator needs only 5% resistor
Easy interface with an RF or infrared trans-
mission media
Low power and high noise immunity CMOS
technology
Low standby current
·
·
·
Minimal external components
Three words transmission
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 encoders are a series of CMOS LSIs for
remote control system applications. They are
capable of encoding 18 bits of information
which consists of N address bits and 18-N data
bits. Each address/data input is externally
trinary programmable if bonded out. It is other-
wise set floating internally. Various packages of
the 318 encoders offer flexible combinations of
programmable address/data to meet various
application needs. The programmable ad-
dress/data is transmitted together with the
header bits via an RF or an infrared transmis-
sion medium upon receipt of a trigger signal.
The capability to select a TE trigger type or a
DATA trigger type further enhances the appli-
cation flexibility of the 318 series of encoders.
Selection Table
Function
Address Address/ Data Dummy
No. Code No.
Oscillator
Trigger
Package
No.
Data No.
Part No.
HT600
9
10
8
5
8
4
0
0
0
0
0
0
3
4
6
4
0
6
6
4
0
RC oscillator
RC oscillator
RC oscillator
TE
TE
TE
20 DIP/20 SOP
24 SOP/24 SDIP
18 DIP
HT640
HT680
HT6187
HT6207
HT6247
9
RC oscillator D12,D14,D15 18 DIP/20 SOP
10
12
RC oscillator
RC oscillator
D12~D15
20 DIP/20 SOP
D12~D17 24 SOP/24 SDIP
Note: Address/Data represents addressable pins or data according to the decoder requirements.
1
July 8, 1999
318 Series of Encoders
Block Diagram
TE trigger
DATA trigger
HT6187/HT6207/HT6247
HT600/HT640/HT680
O
S
C
2
O
S
C
2
O
O
S
C
1
S
C
1
D
a
t
a
S
r
f
e
l
e
c
t
D
a
t
a
r
u
S
e
l
e
c
t
O
s
c
i
l
l
a
t
o
r
O
s
c
i
l
l
a
t
o
r
3
¸
3
D
i
v
i
d
e
¸
3
3
D
i
v
i
d
e
D
O
U
T
D
O
U
T
&
B
u
f
e
r
&
B
f
f
e
r
T
E
¸
1
8
C
o
u
n
t
e
r
¸
1
8
C
o
u
n
t
e
r
n c
c
S
y
n
c
.
S
y
.
A
0
A
0
&
1
o
f
1
8
&
1
o
f
1
8
C
i
r
c
u
i
t
C
i
r
u
i
t
1
8
D
e
c
o
d
e
r
1
8
D
e
c
o
d
e
r
T
r
a
n
s
m
i
s
s
i
o
n
T
r
a
n
s
m
i
s
s
i
o
n
G
a
t
e
C
i
r
c
u
i
t
G
a
t
e
C
i
r
c
u
i
t
T
r
i
n
a
r
y
T
r
i
n
a
r
y
A
9
A
1
1
L
E
D
C
i
r
c
u i
D
t
L
E
D
e
t
e
c
t
o
r
D
e
t
e
c
t
o
r
A
D
1
0
A
D
1
7
D
1
2
D
1
7
V
D
D
V
S
S
V
D
D
V
S
S
Note: The address/data pins are available in various combinations.
Pin Assignment
T
E
t
r
i
g
g
e
r
t
y
p
e
9
5
-
-
A
A
d
d
d
d
r
r
e
e
s
s
s
s
1 0
s
s
-
A
d
d
d d
a
r
e
s
s
8
4
-
-
A
d
d
d
d
r
r
e
e
s
s
/
D
a
t
a
8
-
A
r
e
s
s
/
D
a
t
a
A
/
D
a
t
A
A
A
A
A
A
A
D
D
D
D
D
D
D
1
1
1
1
1
1
1
1
2
3
4
5
6
7
8
9
1
1
1
1
2
3
4
5
6
7
2
2
2
2
2
1
1
1
1
1
1
1
4
3
2
1
0
9
8
7
6
5
4
3
V
A
A
A
A
A
A
A
A
A
A
A
D
D
9
8
7
6
5
4
3
2
1
0
D
1
0
A
A
A
A
D
D
D
D
1
1
1
1
1
2
3
4
1
2
3
4
2
1
1
1
0
9
8
7
V
A
A
A
D
9
8
7
D
A
A
A
A
D
D
D
D
1
1
1
1
1
2
3
4
5
6
7
8
9
1
2
4
5
1
1
1
1
1
1
1
1
1
8
7
6
5
4
3
2
1
0
V
A
A
A
A
A
A
A
A
D
9
8
7
6
3
2
1
0
D
A
D
1
5
6
7
8
9
5
1
1
1
1
1
6
5
4
3
2
A
6
D
O
U
T
A
4
D
O
U
T
D
O
U
T
T
E
A
A
A
A
3
2
1
0
T
E
T
E
O
O
S
S
C
C
2
1
O
O
S
S
C
C
2
1
0
1
2
O
O
S
S
C
C
2
1
V
S
S
V
S
S
V
S
S
1
0
1
1
H
T
6
0
0
H
T
6
8
0
H
T
6
4
0
2
0
D
I
P
/
S
O
P
1
8
D
I
P
/
S
O
P
2
4
S
O
P
/
S
D
I
P
2
July 8, 1999
318 Series of Encoders
D
A
T
A
t
r
i
g
g
e
r
t
y
p
e
1
2 -
s
A
d
d
r
e
s
s
9
-
A
d
d
r
e
s
s
9
-
A
d
d
r
e
s
s
1
0
-
A
d
d
r
e
s
6
-
D
a
t
a
3
-
D
a
t
a
3
-
D
a
t
a
4
-
D
a
t
a
A
1
1
1
1
1
1
1
1
1
2
3
4
5
6
7
2
2
2
2
2
1
1
4
3
2
1
0
9
8
V
A
A
A
A
A
A
D
1
9
8
7
6
5
D
D
D
D
D
D
D
2
3
4
5
6
7
0
N
C
1
2
3
4
5
6
2
1
1
1
1
1
0
9
8
7
6
5
N
V
A
C
A
1
1
1
1
1
2
3
4
1
2
3
4
2
1
1
1
0
9
8
7
V
A
A
A
D
9
8
7
D
A
1
1
1
1
1
2
4
5
1
2
3
4
5
1
1
1
1
1
8
7
6
5
4
V
D
D
A
1
1
D
9
D
D
D
D
D
D
D
1
1
1
2
4
5
D
D
D
A
A
9
8
A
8
A
A
7
6
D
1
5
5
6
1
1
6
5
A
A
6
4
A
A
A
A
A
A
7
6
3
2
1
0
D
O
U
T
D
O
U
T
D
O
U
T
D
O
U
8
9
1
T
1
1
1
7
6
5
A
A
A
4
3
2
L
E
D
L
E
D
6
7
8
9
1
1
1
1
3
2
1
0
L
E
D
7
8
9
1
1
1
1
1
4
3
2
1
A
A
A
A
3
2
1
0
L
E
D
7
8
1
1
1
1
4
3
2
1
A
A
A
A
3
2
1
0
O
O
S
S
C
C
2
1
0
O
O
S
S
C
C
2
1
O
O
S
S
C
C
2
1
O
O
S
S
C
C
2
1
9
1
1
1
1
2
1
1
4
3
A
A
1
0
V
S
S
V
S
S
0
V
S
S
0
V
S
S
H
T
6
1
8
7
H
T
6
1
8
7
H
T
6
2
0
7
H
T
6
2
4
7
2
0
D
I
P
/
S
O
P
2
1
8
D
I
P
2
0
S
O
P
4
S
O
P
/
S
D
I
P
Pin Description
Internal
Connection
Pin Name I/O
Description
TRANSMISSION Input pins for address A0~A11 setting
GATE They can be externally set to VDD, VSS, or left open.
A0~A11
I
I
TRANSMISSION Input pins for address/data (AD10~AD17) setting
They can be externally set to VDD, VSS, or left open.
AD10~AD17
GATE
Input pins for data (D12~D17) setting and transmission
enable (active high)
They an be externally set to VDD or left open (see Note).
CMOS IN
Pull-low
D12~D17
I
DOUT
LED
O
O
CMOS OUT
NMOS OUT
Encoder data serial transmission output
LED transmission enable indicator
CMOS IN
Pull-low
TE
I
Transmission enable, active high (see Note).
OSC1
OSC2
VSS
I
O
I
OSCILLATOR
Oscillator input pin
OSCILLATOR
Oscillator output pin
Negative power supply (GND)
Positive power supply
¾
¾
VDD
I
Notes: D12~D17 are data input and transmission enable pins of the HT6187/HT6207/HT6247.
TE is the transmission enable pin of the HT600/HT640/HT680.
3
July 8, 1999
318 Series of Encoders
Approximate internal connection circuits
T
R
A
N
S
M
I
S
S
I
O
N
O
C
P
M
S
I
N
C
M
O
S
O
U
T
N
M
O
S
O
U
T
G
A
T
E
u
l
l
-
l
o
w
O
S
C
I
L
L
A
T
O
R
E
N
O
S
C
2
O
S
C
1
Absolute Maximum Ratings
Supply Voltage...............................-0.3V to 13V
Storage Temperature.................-50°C to 125°C
Input Voltage ...................VSS-0.3 to VDD+0.3V
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
Conditions
¾
Symbol
VDD
Parameter
Operating Voltage
Standby Current
Min. Typ. Max. Unit
VDD
¾
2.4
¾
12
1
V
¾
0.1
2
3V
mA
mA
mA
mA
mA
mA
mA
ISTB
Oscillator stops
12V
5V
4
¾
250
1200
3
500
2400
¾
¾
No load
fOSC=100kHz
IDD
Operating Current
LED Sink Current
Output Drive Current
12V
5V
¾
ILED
V
V
V
LED=0.5V
1.5
-0.6
0.6
OH=0.9VDD (Source)
OL=0.1VDD (Sink)
5V
-1.2
1.2
¾
IDOUT
5V
¾
4
July 8, 1999
318 Series of Encoders
Test Conditions
Symbol
Parameter
Min. Typ. Max. Unit
VDD
¾
Conditions
VIH
VIL
0.8VDD
VDD
0.2VDD
¾
V
V
²H² Input Voltage
¾
¾
¾
¾
0
²L² Input Voltage
¾
fOSC
RTE
Oscillator Frequency
TE Pull-low Resistance
10V
5V
100
1.5
kHz
MW
ROSC=330kW
¾
¾
V
TE=5V
3
D12~D17 Pull-low
Resistance
RDATA
VDATA=5V
5V
1.5
3
¾
MW
Functional Description
Operation
The 318 series of encoders begins a three-word transmission cycle upon receipt of a transmission en-
able (TE for the HT600/HT640/HT680 or D12~D17 for the HT6187/HT6207/HT6247, active high).
This cycle will repeat itself as long as the transmission enable (TE or D12~D17) is held high. Once
the transmission enable falls low, the encoder output completes its final cycle and then stops as
shown below.
T
E
o
r
D
1
2
~
D
1
7
<
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
Transmission timing
Information word
An information word consists of 4 periods as shown:
1
/
6
b
i
t
P
i
l
o
t
p
e
r
i
o
d
A d
d
d
r
e
s
s
c
o
d
e
p
e
r
i
o
d
d
D
a
t
a
c
o
e
p
e
r
i
o
d
S
y
n
c
.
p
e
r
i
o
(
6
b
i
t
s
)
Composition of information
5
July 8, 1999
318 Series of Encoders
Address/data waveform
Each programmable address/data pin can be externally set to one of the following three logic states:
f
o
¸
s 3 c 3
"
O
n
e
"
"
Z
e
r
o
"
"
O
p
e
n
"
A
d
d
r
e
s
s
/
D
a
t
a
B
i
t
Address/Data bit waveform
The ²Open² state data input is interpreted as logic low by the decoders since the decoder output only
have two states.
Address/data programming (preset)
The status of each address/data pin can be individually preset to logic ²high², ²low², or ²floating². If a
transmission enable signal is applied, the encoder scans and transmits the status of the 18 bits of ad-
dress/data serially in the order A0 to AD17 for the HT600/HT640/HT680 and A0 to D17 for the
HT6187/HT6207/HT6247.
There are some packaging limitations. The 18-pin DIP HT680, for example, offers four external data
bits and eight external address bits. The remaining unpackaged bits or dummy codes are treated as
floating for A0~AD17 or as pull-low for D12~D17. During an information transmission these bits are
still located in their original position. But if the trigger signal is not applied, the chip only consumes a
standby current which is less than 1mA.
The address pins are usually preset to transmit data codes with particular security codes by the DIP
switches or PCB wiring, while the data is selected using push buttons or electronic switches.
The following figure shows an application using the HT680:
O
S
C
1
O
S
C
2
T
r
a
n
s
m
u
i
s
s
i
o
n
D
O
U
T
m
e
d
i
m
V
D
D
A T 7 E
V
S
S
A
0
A
1
A
2
A
3
A
6
A
A
D
8
1
1
A
A
9
D
1
2
A
D
1
4
A
D
1
5
V
D
D
6
July 8, 1999
318 Series of Encoders
The transmitted information is as shown:
Pilot
&
Sync.
A0
A1
A2
A3
A4
A5
Z
A6
1
A7
Z
A8
0
A9 AD10 AD11
0
Z
0
1
Z
0
Z
Z
AD12 AD13 AD14 AD15 AD16 AD17
¾
Z
Z
Z
1
Z
Z
Z: floating
Address/Data sequence
The following provides a table of address/data sequence for various models of the 318 series encoders. A
correct device should be selected according to the individual address and data requirementss.
Address/Data Bits
Part No.
0~3
4
5
6~9
10
11
12
13
14
15
16
17
HT600
HT640
HT680
A0~A3 A4
A6~A9
AD11 AD12 AD13 AD14 AD15
¾
¾
¾
¾
A0~A3 A4 A5 A6~A9 AD10 AD11 AD12 AD13 AD14 AD15 AD16 AD17
A0~A3
A6~A9
A6~A9
A6~A9
AD11 AD12
AD14 AD15
D14 D15
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
HT6187 A0~A3
A11
A11
D12
HT6207 A0~A3 A4
D12 D13 D14 D15
D12 D13 D14 D15 D16 D17
HT6247 A0~A3 A4 A5 A6~A9 AD10 A11
Notes:
²¾² is a dummy code which is left ²open² and not bonded out.
² is a dummy code which is set low and not bonded out.
²
Transmission enable
For the TE trigger type of encoders, transmission is enabled by applying a high signal to the TE pin.
But for the Data trigger type of encoders, it is enabled by applying a high signal to one of the data
pins D12~D17.
7
July 8, 1999
318 Series of Encoders
Flowchart
P
o
w
e
r
o
n
S
t
a
n
d
b
y
m
o
d
e
N
o
T
r
a
n
s
m
i
s
s
i
o
n
e
n
a
b
l
e
d
?
Y
e
s
3
d
a
t
a
w
o
r
d
s
t
r
a
n
s
m
i
t
t
e
d
N
o
T
r
a
n
s
m
i
s
s
i
o
n
s
t
e
i
n
l
l
a
b
l
e
d
?
Y
e
s
3
d
a
t
a
w
o
r
d
s
t
r
a
n
s
m
i
t
t
e
d
c
o
n
t
i
n
u
o
u
s
l
y
Notes: D12~D17 are transmission enables of the HT6187/HT6207/HT6247.
TE is the transmission enable of the HT600/HT640/HT680.
8
July 8, 1999
318 Series of Encoders
Oscillator frequency vs supply voltage
f
o
s
c
(
S
c
a
l
e
)
R
o
s
W
)
c
(
3
.
0
0
2
.
7
5
1
2
0
k
2
.
5
0
2
2
1
1
1
.
.
.
.
.
2
0
7
5
2
5
0
5
0
5
1
1
5
8
0
0
k
k
2
2
2
7
0
0
k
k
3
3
3
9
0
0
k
k
(
1
0
0
k
H
z
)
1
.
0
0
0
.
7
5
4
5
6
8
1
1
7
6
8
2
M
.
0
0
k
k
0
0
k
k
0
0
.
.
5
2
0
5
5
M
2
M
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).
9
July 8, 1999
318 Series of Encoders
Application Circuits
T
r
a
n
s
m
i
t
t
e
r
C
D
i
D
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c
u
i
t
T
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C
i
r
c
u
i
t
V
V
D
D
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
8
7
6
5
4
3
2
1
0
1
2
3
4
5
6
7
1
1
1
1
1
1
1
1
1
8
7
6
5
4
3
2
1
0
A
A
A
A
D
T
D
D
D
D
1
1
1
1
1
2
4
5
V
D
D
A
D
D
D
D
L
O
O
V
1
1
V
D
D
A
A
A
A
A
A
A
A
9
8
7
6
3
2
1
0
1
1
1
2
4
5
A
A
A
A
A
A
A
A
9
8
7
6
3
2
1
0
O
U
T
O
U
T
1
R
W
k
E
E
D
O
O
S
S
C
C
2
1
S
S
C
C
2
1
R
o
s
c
o
s
8
c
9
V
S
S
S
S
H
T
6
8
0
H
T
6
1
8
7
T
r
a
n
s
m
i
t
t
e
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C
i
r
c
u
i
t
T
r
a
n
s
m
i
t
t
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r
C
i
r
c
u
i
t
V
D
D
V
D
D
1
2
3
4
5
6
7
8
9
2
1
1
1
1
1
1
1
1
1
0
9
8
7
6
5
4
3
2
1
1
2
3
4
5
6
7
8
9
2
1
1
1
1
1
1
1
1
1
0
9
8
7
6
5
4
3
2
1
A
A
D
D
1
1
V
1
2
D
D
A
D
D
D
D
D
L
O
O
V
1
1
V
D
D
A
A
A
A
9
8
7
6
1
1
1
1
2
3
4
5
A
A
A
A
9
8
7
6
A
D
1
3
A
A
D
T
D
D
1
1
4
5
O
U
T
A
4
O
U
T
A
A
A
A
A
4
1
W
k
E
A
A
A
A
3
2
1
0
E
D
3
2
1
0
O
O
S
S
C
C
2
1
S
S
C
C
2
1
R
o
s
c
R
o
s
c
1
0
1
0
V
S
S
S
S
H
T
6
2
0
7
H
T
6
0
0
10
July 8, 1999
318 Series of Encoders
T
r
a
n
s
m
i
t
t
e
r
C
i
r
c
u
i
t
T
r
a
n
s
m
i
t
t
e
r
C
i
r
c
u
i
t
V
D
D
V
D
D
1
2
3
4
2
2
2
2
2
1
1
1
1
1
1
1
4
3
2
1
0
9
8
7
6
5
4
3
1
2
3
4
5
6
7
8
9
2
2
2
2
2
1
1
1
1
1
1
1
4
3
2
1
0
9
8
7
6
5
4
3
A
A
D
D
1
1
1
2
V
D
D
A
D
1
1
V
D
D
A
1
0
1
1
2
3
A
1
0
A
D
1
3
A
A
A
9
8
7
D
A
A
A
A
A
9
8
7
6
5
4
A
D
1
4
D
1
4
5
6
A
D
1
5
D
1
5
A
D
1
6
A
A
6
5
D
1
6
7
8
9
A
D
1
7
D
1
7
D
O
U
T
A
4
D
O
U
T
A
A
A
A
1
W
k
T
E
A
A
A
3
L
E
D
3
2
1
1
1
0
1
1
1
0
1
O
S
S
C
C
2
1
2
O
S
S
C
C
2
1
R
o
s
c
R
o
s
c
O
1
O
1
2
1
2
V
S
S
A
0
V
S
S
A
0
H
T
6
4
0
H
T
6
2
4
7
Notes: Typical infrared diode: EL-1L2 (KODENSHI CORP.)
Typical RF transmitter: JR-220 (JUWA CORP.)
TX-99 (MING MICROSYSTEM, U.S.A.)
11
July 8, 1999
318 Series of Encoders
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 Microelectronics Enterprises 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 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.
12
July 8, 1999
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