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UTCRCT02 Datasheet

  • UTCRCT02

  • Encoder For Remote Controller With Five Functions CMOS IC

  • 11頁

  • UTC-IC

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UTC RCT02
Encoder For Remote Controller
With Five Functions
DESCRIPTION
The chip can be used with the decoder RCR02 to provide a
complete control functions to the remote-controlled toy. The
RCT02 has five input pins corresponding with the five
function buttons i.e, forward, backward, rightward, leftward
and turbo. The encoding circuit in the RCT02 sends digital
codes to the two output pins SO and SC. The digital codes
correspond to the definite function buttons or their
combinations. The SO and SC outputs are used in wireless
and infra-red applications respectively.
There is an internal oscillator in the RCT02. By adding an
external resistor conveniently, the oscillator will be
constructed. The oscillator frequency can be adjusted by the
external resistor. The relative error between the frequencies
of the two on chip oscillators in the RCT02 and RCR02 must
be less than
鹵25%.
The auto-power-off function is achieved by an internal
counter. When the RCT02 is powered on, the counter is reset
and begin to count. Any action of push down or release the
function button also reset the counter. The PC pin will keep
on a high level until the counter counts up to about 4 minutes.
The PC output is used to control on/off state of the external
power supply. Pressing OFF button can also shut down the
power supply. Press on any function button will wake up the
chip promptly.
CMOS IC
SOP-14
DIP-14
FEATURES
*Five input pins used for five control buttons
*Operating power-supply voltage range: 2.5 to 5.0V
*Auto-power-off if no press on any button in 4 minutes or
continuously press on any button over 4 minues
*Manual-power-on/off with ON/OFF button
*One output pin used for external power control
*Press on any button as wake up
*On-chip oscillator with an external resistor
*Low operating current
*Few external components needed
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R502-002,C

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