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UTC RCR03
3 FUNCTION DECODER FOR REMOTE CONTROLLER
DESCRIPTION
The UTC RCR03 is CMOS LST designed for the remote controlled toy. The received signal is amplified by the three-stage amplifier, and then the appropriate amplified signal is sampled, fault-tolerantly checked and decoded to control the actions of the remotecontrolled toy. There is an oscillator in the RCR03. By adding an external resistor conveniently, the oscillator will be construted. The oscillator frequency can be adjusted by the external resistor. Pressing the ON/OFF button can control the output level of the PC pin. The UTC RCR03,the auto-power-off functionsis achieved by an internal counter.When the RCR03 is powered on the counter is reset and begin to count. Any received encoding signal also reset the counter. The PC output pin will keep on a high level until the counter counts up to about 6 minutes. The PC output is used to control on/off state of the external power supply. The UTC RCR03 have four output pins corresponding with the three actions: Forward, Backward and Left.
CMOS
DIP-16
FEATURES
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* Operating power-supply voltage range: 2.5 to 5.5V * Manual-power-on/off with ON/OFF button *One output pin used for external power control *On-chip oscillator with an external resistor *On-chip reversing amplifiers *Low operating current *Few external components needed *Four output pins for three function *Manual Power on/off function
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R502-003,A
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UTC RCR03
RCR03 LOCK DIAGRAM
ON/OFF OSCI Oscillator OSCO
CMOS
Timing Generator
Power Control
PC
SI
Amp
Signal Sample and FaultTolerant Check VO1
FORW ARD Decoding Circuit Output Circuit FORW ARDB BACKW ARD LEFT
VI1
Amp
VI2
Amp
VO2
PRODUCT PIN CONFIGURATION AND DESCRIPTION
VO2 PC GND SI OSCI NC OSCO BACKWARD 1 2 3 4 6 7 8 16 15 14 13 11 10 9 VI2 VO1 VI1 ON/OFF VDD FORWARD FORWARDB LEFT
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PIN NO.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
PIN NAME
VO2 PC GND SI OSCI NC OSCO BACKWARD LEFT FORWARDB FORWARD VDD ON/OFF VI1 VO1 VI2
DESCRIPTION
Output pin for the amplifier 2 Power control output pin Negative power supply Input pin of the encoding signal Oscillator input pin No Connection Oscillator output pin Backward output pin Left output pin Reversing output of the forward pin Forward output pin Positive power supply Input pin used to control the output level of the PC Input pin for the amplifier 1 Output pin for the amplifier 1 Input pin for the amplifier 2
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R502-003,A
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UTC RCR03
ABSOLUTE MAXIMUM RATINGS
PARAMETER
DC Input Voltage Supply Voltage to Ground Potential(Inputs &VDD Only) Supply Voltage to Ground Potential(Outputs &D/O Only) DC Output Current Power Dissipation Ambient Temperature With Power Applied Storage Temperature
CMOS
SYMBOL
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