Datasheet

UNISONIC TECHNOLOGIES CO., LTD
RCR5
Preliminary
CMOS IC
REMOTE CONTROLLER WITH
NINE FUNCTIONS

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.

DIP-22
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
Lead Free
RCR5L-D22-T

Ordering Number
Halogen Free
RCR5G-D22-T
Package
Packing
DIP-22
Tube
MARKING
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Preliminary
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PIN CONFIGURATIONS
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PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
7
8
9
PIN NAME
VO2
GND
SI
OSCI
OSCO
F1
RIGHT
F2
LEFT
10
VT
11
12
13
14
15
16
17
18
19
20
21
22
RDB
LDB
LRTD
BACKWARD
F4
FORWARD
F3
TURBO
VDD
VI1
VO1
VI2
CMOS IC
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
Auto Shut-OFF input pin. If VT voltage exceeds 1.4V, all outputs shut off automatically.
Right disable pin.
Left disable pin.
Left/right turbo disable pin
Backward output pin
F4 function output pin
Forward output pin
F3 function output pin
TURBO output pin
Power supply
Inverter 1 input pin for signal amplify
Inverter 1 output pin for signal amplify
Inverter 2 input pin for signal amplify
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
Preliminary
CMOS IC
BLOCK DIAGRAM
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)
Input Condition
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Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
DC Supply Voltage
VDD
2.4~4.0
V
Input/Output Voltage
GND-0.2~ VDD+0.2
V
Operating Temperature
TOPR
-10~+60
°C
Storage Temperature
TSTG
-25~+125
°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
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MIN
2.4
0.2
5.0
5.0
-50
TYP
3.0
0.4
MAX
4.0
1.0
50
128
-20
+20
UNIT
V
mA
mA
mA
%
KHz
%
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Preliminary
CMOS IC
DATA FORMAT
500Hz, 3/4 duty
F1 = "1"
500Hz, 1/4 duty
F0 = "0"

CODING METHOD
The data string that UTC RCR5 receiver is below:
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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Preliminary
CMOS IC
OUTPUT TABLES
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Preliminary
CMOS IC
OUTPUT TABLES(Cont.)
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 + LEFT (RIGHT) + TURBO
FORWARD + LETT (RIGHT) + TURBO
Output Function
FORWARD + LEFT (RIGHT) + TURBO
FORWARD + LEFT (RIGHT)
2. The UTC RCR5 have built in a zener diode, so you must add a resistance between POWER and IC’s VDD
pin, like the R6 of UTC RCR5 application circuit.

TYPICAL APPLICATION CIRCUIT (FOR REFERENCE ONLY)
Receiver (UTC RCR5 Fosc ≌ 128KHz)
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Preliminary
CMOS IC
TEST CIRCUIT
Fosc for UTC RCR5 ≌ 128KHz
UTC RCT5 output pin (SO) has an inverted phase with UTC RCR5 input (SI). If UTC RCT5 is connected without
using a RF module, an inverter has to be inserted between this 2 pins.
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.
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