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UNISONIC TECHNOLOGIES CO., LTD RCT6
REMOTE CONTROLLER WITH SEVEN FUNCTIONS
DESCRIPTION
The UTC RCT6 is a pair of CMOS LSIs designed for remote controlled car applications. The UTC RCT6 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. UTC RCT6 have Forward (Backward) combined with the turbo application. The UTC RCT6 is the sending electric circuit.
CMOS IC
FEATURES
* Operating voltage range: 2.0V ~ 5.0V * Very low Stand-by current * Few external components needed * 7-function remote controller controlling Forward/Backward/Turbo/ Right-turn/Left turn/two function keys
DIP-16
*Pb-free plating product number: RCT6L
ORDERING INFORMATION
Normal RCT6-D16-T Order Number Lead Free Plating RCT6L-D16-T Package DIP-16 Packing Tube
RCT6L-D16-T (1)Packing Type (2)Package Type (3)Lead Plating (1) T: Tube (2) D16: DIP-16 (3) L: Lead Free Plating Blank: Pb/Sn ,
www.unisonic.com.tw Copyright (c) 2005 Unisonic Technologies Co., Ltd
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RCT6
PIN CONFIGURATIONS
CMOS IC
RIGHTB TESTB GND BACKWARDB FORWARDB TURBOB SC NC
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
LEFIB FIB OSIC OSCO PC VDD SO F2B
PIN DESCRIPTION
PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIN NAME RIGHTB NC GND BACKWARDB FORWARDB TURBOB SC NC F2B SO VDD PC OSCO OSCI F1B LEFTB DESCRIPTION The rightward function will be selected when this pin is connected to GND No Connection 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 when this pin is connected to GND Output pin of the encoding signal with carrier frequency No connection 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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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RCT6
BLOCK DIAGRAM
CMOS IC
OSCI OSCO
Oscillator
Timing Generator
RIGHTB LEFTB TURBOB FORWARDB BACKWARDB
Latch Circuit
Encoding Circuit
Logic
PC SO SC
F1B
Input Condition
F2B
O/P Condition Forward Backward Turbo Forward = 60Hz Low Low Backward Low = 60Hz Low Forward + turbo = high Low = high Backward + turbo Low = high = high 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)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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RCT6
ABSOLUTE MAXIMUM RATINGS
CMOS IC
PARAMETER SYMBOL RATINGS UNIT DC Supply Voltage VDD 2.0 ~ 5.0 V Input/Output Voltage GND -0.2 ~ VDD + 0.2 V Operating Temperature TOPR -20 ~ +85 Storage Temperature TSTG -40 ~ +150 Note 1.Absolute maximum ratings and operation rating recommended are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. 2.The device is guaranteed to meet performance specification within 0~+70 operating temperature range and assured by design from -20~+85.
ELECTRICAL CHARACTERISTICS (VDD=4V, Ta=25, unless otherwise specified.)
PARAMETER Operating Voltage Operating Current Stand-by Current SO O/P Driving Current (RF) AC O/P Frequency Oscillator Frequency SYMBOL VOPR IOPR ISTN-BY IDRSO FAUDIO FOSC TEST CONDITIONS Unload Full load VOH = 0.7V ROSC=130K MIN 3 TYP 4 MAX UNIT 5 V 0.6 mA 1 A mA Hz KHz
10 500 128
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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RCT6
DATA FORMAT
500Hz, 3/4 duty F1 = "1"
CMOS IC
500Hz, 1/4 duty F0 = "0"
CODING METHOD
The data string that UTC RCT6 receives is below:
SO
start code (5 bit)
F
B
T
R
L
F1 N1 N2 F2
Parity End
an output code (16 bit, 32ms) RIGHT :s :n effect
Data string: start code + data code + parity code + end code - start code = F1 F1 F1 F1 F0
- data code = F B T R L F1 N N F2
F = Forward B = Backward T = Turbo R = Right L = Left F1 = Function 1 F2 = Function 2 N = No used code FBTRLF1NNF2 all can have two date format, "F1" or "F0", "F1" means the function is in effect, and "F0" means not. - parity code = for parity check - end code = for (latch data) * Data code can be any combination of F, B, T, R, L, F1, F2, except for F & B, and R & L.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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RCT6
OUTPUT TABLES
FUNCTION
FORWARD LEFT + FORWARD RIGHT + FORWARD TURBO TURBO + FORWARD TURBO + LEFT + FORWARD TURBO + RIGHT + FORWARD BACKWARD BACKWARD + RIGHT BACKWARD + LEFT TURBO + BACKWARD TURBO + BACKWARD + RIGHT TRUBO + BACKWARD + LEFT LEFT RIGHT FUNCTION1 FORWARD + FUNCTION 1 FORWARD + TURBO + FUNCTION1 TURBO + FUNCTION1 BACKWARD + FUNCTION1 BACKWARD + TURBO + FUNCTION1 LEFT + FORWARD + FUNCTION1 RIGHT + FORWARD + FUNCTION1 LEFT + BACKWARD + FUNCTION1 RIGHT + BACKWARD + FUNCTION1 LEFT + FUNCTION1 RIGHT + FUNCTION1 FUNCTION2 FORWARD + FUNCTION2 FORWARD + TURBO + FUNCTION 2 TURBO + FUNCTION2 BACKWARD + FUNCTION 2 BACKWARD + TURBO + FUNCTION2 LEFT + FORWARD + FUNCTION2 RIGHT + FORWARD + FUNCTION2 LEFT + BACKWARD + FUNCTION2 RIGHT + BACKWARD + FUNCTION2 LEFT + FUNCTION2 RIGHT + FUNCTION2 Z H Z H Z Z Z Z F Z Z Z H H H Z Z Z H H H H H H H H H H H H H H H H H H Z H Z H Z Z Z Z H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H B OUTPUT STATUS T R L F1 H H F2
CMOS IC
Blank = F0
H H H
H = high level, Z = 60Hz flash Thus, from the table, we can see that there are more than 50 states of function combinations from 7 control keys.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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RCT6
TYPICAL APPLICATION CIRCUIT (FOR REFERENCE ONLY)
Transmitter (UTC RCT6 Fosc 128KHz)
9V +
CMOS IC
AMP R L R1 330 SF1 R7 50K 100K R2 120K crystal
27.145MHz
B
1 2
16 15 14 13 12 11 10 9
L1
C4 47P
C3 0.02P
L2 C8 47P L3
F T
3 4 UTC 5 RCT6 6 7 8
Q1 C2 33P
C5 47P Q2 R3 100 R5 33K C6 47P C9 R6 100P 100 C7 0.02P C10 10P
C1 ZD1 0.02P
R4 6.8K
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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RCT6
TEST CIRCUIT
Fosc for UTC RCT6 128KHz
R.F Transmitter
CMOS IC
fosc = 128KHz 91K
1K 16 15 14 13 12 5V 100F 11 10 9
UTC RCT6
1 2 3 4 5 6 7 8
LEETB FIB
RIGHIB
BACKWARDB TURBOB FORWARDB
F2B
UTC RCT6 output pin (SO) has an inverted phase with UTC RCR6C input (SI). If UTC RCT6 is connected without using a RF module, an inverter has to be inserted between this 2 pins.
connect directly
VDD
UTC RCT6
VDD pin 10 pin 3
VDD
UTC RCR6C
SO
SI
UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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