TX-6B/RX-6B
TOY CAR REMOTE CONTROLLER WITH SEVEN FUNCTIONS
DESCRIPTION
The TX-6B/RX-6B are a pair of CMOS LSIs designed for remote
controlled car applications. They have seven control keys controlling
the motions (i.e. forward, backward, rightward, leftward, two function
keys and the turbo function) of the remote controlled car.
The TX-6B is housed in DIP-16 package, and the RX-6B is housed
in DIP-18 package.
SOP-16
SOP-20
FEATURES
* Wide operating voltage range
TX-6B: (V
DD
=2.2~12.0V)
RX-6B: (V
DD
=3.0~12.0V)
* Very Low stand-by current for TX-6B
* Auto-power-off function for TX-6B
* Few external components are needed
* Built-in 3.6V zener for RX-6B
* 7 functions remote controller controlling: forward, backward, right,
left, turbo, and two function keys.
DIP-16
DIP-18
ORDERING INFORMATION
Device
TX-6B
RX-6B
TX-6BS
RX-6BS
Package
DIP-16-300-2.54
DIP-18-300-2.54
SOP-16-225-1.27
SOP-20-300-1.27
BLOCK DIAGRAM
NC
TEST
8
OSCI
2
14
Oscillator
13
Timing
Generator
OSCO
11 V
DD
RIGHT
1
16
6
5
4
Latch
Circuit
Encoding
Circuit
Logic
LEFT
12
PC
10
SO
7
SC
TURBO
FORWARD
BACKWARD
15
F1
9
F2
3
GND
TX-6B/TX-6BS Block Diagram
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http
:
www.silan.com.cn
REV:2.1
2005.04.21
Page 1 of 12
TX-6B/RX-6B
BLOCK DIAGRAM
(continued)
OSCI
Oscillator
OSCO
Decoding
Circuit
Counter
Timing
Generator
V
DD
SI
AMP
VO1
VI1
PLA
RIGHT
LRTD
Control
Logic
VT
Latch
Circuit
LEFT
TURBO
BACKWARD
FORWARD
VI2
VO2
F1
F2
GND
RX-6B/RX-6BS Block Diagram
ABSOLUTE MAXIMUM RATINGS
Characteristics
DC Supply Voltage
Input/Output Voltage
Operating Temperature
Storage Temperature
COMMENT
Never allow a stress to exceed the values listed under "Absolute Maximum Ratings", otherwise the device
would suffer from a permanent damage. Nor is a stress at the listed value be allowed to persist over a period,
since an extended exposure to the absolute maximum rating condition may also affect the reliability of the device,
if not causing a damage thereof.
Symbol
V
DD
V
IN
,V
OUT
T
opr
T
stg
Value
0.3 ~ 5.0
GND-0.2V ~ V
DD
+0.2V
-10 ~ +60
-25~+125
Unit
V
V
°C
°C
ELECTRICAL CHARACTERISTICS
TX-6B
(V
DD
=9V, F
osc
=128KHz, T
amb
=25°C, unless otherwise specified.)
Characteristics
Operating Voltage
Operating Current
Stand-By Current
DC O/P Driving Current(RF)
AC O/P Driving Current(IR)
AC O/P Frequency
Symbol
V
DD
I
DD
I
STB
I
drive
I
drive
F
audio
Min.
2.2
--
--
--
--
--
Typ.
9.0
--
1.0
10.0
6.0
500
Max.
12.0
1.5
1000
--
--
--
Unit
V
mA
µA
mA
mA
Hz
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http
:
www.silan.com.cn
REV:2.1
2005.04.21
Page 2 of 12
TX-6B/RX-6B
RX-6B
(V
DD
=9V, F
osc
=128KHz, T
amb
=25°C, unless otherwise specified.)
Characteristics
Operating Voltage
Operating Current
O/P Driving Current
O/P Driving Current(F1,F2)
Effect Decoding Frequency Variation
Symbol
V
DD
I
DD
I
drive
I
df
F
tolerance
Min.
3.0
--
5.0
5.0
-50%
Typ.
9.0
30.0
--
--
--
Max.
12.0
--
--
--
50%
Unit
V
mA
mA
mA
--
PIN CONFIGURATION
PIN DESCRIPTION
TX-6B/TX-6BS
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Symbol
RIGHT
TEST
GND
BACKWARD
FORWARD
TURBO
SC
NC
F2
SO
V
DD
PC
OSCO
OSCI
F1
LEFT
This pin is used for testing mode
Negative power supply
The backward function will be selected when this pin is connected to GND
The forward function will be selected when this pin is connected to GND
The turbo function will be selected, if this pin is connected to GND
Output pin of the encoding signal with carrier frequency
No connect
F2 function select
Output pin of the encoding signal without carrier frequency
Positive power supply
Power control output pin
Oscillator output pin
Oscillator input pin
F1 function select
The leftward function will be selected when this pin is connected to GND
REV:2.1
2005.04.21
Page 3 of 12
Description
The rightward function will be selected when this pin is connected to GND
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http
:
www.silan.com.cn
TX-6B/RX-6B
RX-6B
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
RX-6BS
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Symbol
VO2
GND
SI
OSCI
OSCO
F1
RIGHT
F2
LEFT
NC
NC
VT
LRTD
BACKWARD
FORWARD
TURBO
V
DD
VI1
VO1
VI2
Negative power supply
Input pin of the encoding signal
Oscillator input pin
Oscillator output pin
F1 function output pin
Rightward output pin
F2 function output pin
Leftward output pin
Not connect
Not connect
Auto Shut-OFF input pin.
If VT voltage exceeds 1.4V, all outputs shut off automatically.
Left/right turbo disable pin
Backward output pin
Forward output pin
TURBO output pin
Positive power supply
Inverter 1 input pin for signal amplify
Inverter 1 output pin for signal amplify
Inverter 2 input pin for signal amplify
Description
Inverter 2 output pin for signal amplify
Symbol
VO2
GND
SI
OSCI
OSCO
F1
RIGHT
F2
LEFT
VT
LRTD
BACKWARD
FORWARD
TURBO
V
DD
VI1
VO1
VI2
Negative power supply
Input pin of the encoding signal
Oscillator input pin
Oscillator output pin
F1 function output pin
Rightward output pin
F2 function output pin
Leftward output pin
Auto Shut-OFF input pin.
If VT voltage exceeds 1.4V, all outputs shut off automatically.
Left/right turbo disable pin
Backward output pin
Forward output pin
TURBO output pin
Positive power supply
Inverter 1 input pin for signal amplify
Inverter 1 output pin for signal amplify
Inverter 2 input pin for signal amplify
Description
Inverter 2 output pin for signal amplify
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http
:
www.silan.com.cn
REV:2.1
2005.04.21
Page 4 of 12
TX-6B/RX-6B
FUNCTION DESCRIPTION
The TX-6B/RX-6B are a pair of CMOS LSIs designed for remote controlled car applications. The TX-6B/RX-6B
have seven control keys controlling the motions (i.e. forward, backward, rightward, leftward, two function keys
and the turbo function) of the remote controlled car.
1. OVER-CURRENT PROTECTION
An Auto Shut-Off mechanism is built-in according to Toy Safety Requirement and effective during over-
current situation in motor driver. The active high input applying to this Auto Shut-Off pin will turn off the motor.
(VT pin, when unused, has to be connected to ground. The transfer point=1.4V)
2. DATA FORMAT
F1="1"
500Hz, 3/4 duty
F0="0"
500Hz, 1/4 duty
3. CODING METHOD
3.1 When a trigger pin is triggered, its data code will correspond to the data format of "F1", while the remaining
pins will have the data format of "F0".
3.2. Data string: start code + data code +parity code + end code
Start code = F1 F1 F1 F1 F0
Data code =
F
F = Forward
L = Left
End code = for (latch data)
* Data code can be any combination of F,B,T,R,L,F1,F2, except for F&B, R&L.
B
T
R
L
F1
T = Turbo
F2 = Function2
N
N
F2
R = Right
N = No used code
B = Backward
F1 = Function1
Parity code = for parity check
OUTPUT TABLES
Function
FORWARD
LEFT+FORWARD
RIGHT+FORWARD
TURBO
TURBO+FORWARD
TURBO+LEFT+ FORWARD
TURBO+RIGHT+FORWARD
BACKWARD
BACKWARD+RIGHT
BACKWARD+LEFT
H
H
H
H
H
H
(To be continued)
H
Output Status
F
H
H
H
H
H
H
H
H
H
H
H
H
B
T
R
L
F1
F2
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http
:
www.silan.com.cn
REV:2.1
2005.04.21
Page 5 of 12
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