Document
UNISONIC TECHNOLOGIES CO., LTD
RCR5
Preliminary
REMOTE CONTROLLER WITH NINE FUNCTIONS
CMOS IC
DESCRIPTION
The UTC RCR5 is a CMOS LSI and designed as receiver that complement to UTC RCT5 for remote controlled car applications. It provide nine control keys controlling the motions, which are forward, backward, rightward, leftward, four function keys, and the turbo function, of the remote controlled car.
UTC RCR5 have Forward (Backward) combined with the turbo application. During normal operation without Turbo, Forward (Backward) output from UTC RCR5 sends a 60Hz signal. When Forward (Backward) and Turbo are both in effect, the output signal becomes completely high.
FEATURES
* Operating voltage range: 2.4V~4.0V * Built-in 4.2V zener * Few external components needed * 9-function remote controller controlling Forward/ Backward/ Turbo/
Right-turn/ Left turn/ four function keys * Complement to UTC RCT5.
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
RCR5L-D22-T
RCR5G-D22-T
Package DIP-22
DIP-22
Packing Tube
MARKING
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PIN CONFIGURATIONS
Preliminary
CMOS IC
PIN DESCRIPTION
PIN NO. 1 2 3 4 5 6 7 8 9
10
11 12 13 14 15 16 17 18 19 20 21 22
PIN NAME VO2 GND SI OSCI OSCO F1
RIGHT F2
LEFT
DESCRIPTION Inverter 2 output pin for signal amplify Ground 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
VT Auto Shut-OFF input pin. If VT voltage exceeds 1.4V, all outputs shut off automatically. RDB Right disable pin. LDB Left disable pin. LRTD Left/right turbo disable pin BACKWARD Backward output pin F4 F4 function output pin FORWARD Forward output pin F3 F3 function output pin TURBO TURBO output pin VDD Power supply VI1 Inverter 1 input pin for signal amplify VO1 Inverter 1 output pin for signal amplify VI2 Inverter 2 input pin for signal amplify
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BLOCK DIAGRAM
Preliminary
CMOS IC
Input Condition
Forward
O/P Condition 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)
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Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
DC Supply Voltage Input/Output Voltage
VDD
2.4~4.0
V
GND-0.2~ VDD+0.2
V
Operating Temperature Storage Temperature
TOPR TSTG
-10~+60 -25~+125
°C °C
Note: Absolute maximum ratings 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.
ELECTRICAL CHARACTERISTICS (TA=25℃, VDD=3.0V, Fosc=128KHz, unless otherwise specified.)
Direct Driving: No connect a resistance between POWER and IC’s VDD pin.
PARAMETER
SYMBOL
TEST CONDITIONS
Operating Voltage
VOPR
Operating Current
IOPR Unload
O/P Driving Current
IDRIVE VOH=0.7V
O/P Driving Current (F1, F2)
IDRIVE VOH=0.7V
Effect Decoding (Frequency Variation) FTOLERANCE
Oscillator Frequency
FOSC
Oscillator Frequency Tolerance
Ftolerance UTC RCT5 FOSC=128KHz
MIN TYP MAX UNIT 2.4 3.0 4.0 V 0.2 0.4 1.0 mA 5.0 mA 5.0 mA -50 50 %
128 KHz -20 +20 %
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DATA FORMAT
F1 = "1"
Preliminary
F0 = "0"
CODING METHOD
The data string that UTC RCR5 receiver is below:
CMOS IC
500Hz, 3/4 duty 500Hz, 1/4 duty
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 F3 F4 F2
F = Forward
B = Backward
T = Turbo
R = Right
L = Left
F1 = Function 1
F2 = Function 2 F3 = Function 3 F4 = Function 3 F、B、T、R、L、F1、F3、F4、F2 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, F3, F4 except for F & B, and R & L
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OUTPUT TABLES
Preliminary
CMOS IC
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OUTPUT TABLES(Cont.)
Preliminary
CMOS IC
H = high level, Z = 60Hz flash, Blank=L Thus, from the table, we can see that there are more than 50 states of function combinations from 7 control keys.
Notes: 1. LRTD pin functions as an option pin for LEFT/RIGHT turbo disable.
"LRTD" HIGH (OPEN)
LOW
Key selected FORWARD + L.