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YKP1568VG5

Features: · Two test input T0 ( ANDed with P1 input lines ), T1· 3 single-level vectored interrupt sources: external ( T0/INT and Port 1, for keypad press wake-up functions), timer/counter ( T1 ) and hardware modulator interrupt· 8-bit programmable timer/counter with 5-bit pre-scalier· On-boar...

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SeekIC No. : 004549938 Detail

YKP1568VG5: Features: · Two test input T0 ( ANDed with P1 input lines ), T1· 3 single-level vectored interrupt sources: external ( T0/INT and Port 1, for keypad press wake-up functions), timer/counter ( T1 ) ...

YKP1568VG5 Data Sheet

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Part Number:
YKP1568VG5
Supply Ability:
5000

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  • 1~5000
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  • Negotiable
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  • 15 Days
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Product Details

Description



Features:

· Two test input T0 ( ANDed with P1 input lines ), T1
· 3 single-level vectored interrupt sources: external ( T0/INT and Port 1, for keypad press
  wake-up functions), timer/counter ( T1 ) and hardware modulator interrupt
· 8-bit programmable timer/counter with 5-bit pre-scalier
· On-board oscillator 1MHz to 6MHz.
· Single supply voltage from 2.0 V to 5.5 V.
· Operating temperature range : -20 to +500 C
· Power saving modes: Idle and Stop modes are provided
· `Hardware Modulator` that provides pulse bursts of which the `on` time and `off` time of
  each pulse (i.e. duty cycle) and the number of pulses are programmable
· One output line from the `Hardware Modulator` to control the driver transistor for the
  IR-LED. Capable of sinking 27 mA at Vdd=2.0V, Vout=1.0V
· Watchdog Timer to keep the transmitter from being locked or malfunction.
  Automatic system reset is generated by the WDT if the timer is not reset before overflow
  from counting within a certain period of time.


Description

The YKP1568VG5 is stand-alone microcontroller designate for use in remote control transmitters for a wide range of applications. The YKP1568VG5 for this purpose provides number of dedicated hardware functions for remote controller applications These include the following additional blocks to the YKP1568VG X core:
- Interrupt Gate
- Hardware Modulator
- Output Driver
- Watchdog Timer.

When the YKP1568VG5 transmitter is not in use the microcontroller is in STOP mode and the oscillator is HALTED. The AND gate from P1 Port line provides the wake-up to end STOP mode.

The Hardware Modulator produces pulse bursts according to the required protocol. By software the `ON-time` and the `OFF-time` of each pulse and the number of pulses are controlled.The Output Driver can handle sufficient current to drive a single transistor, and this can provide the required current for the LED. The Watchdog Timer will reset the YKP1568VG5 when YKP1568VG5 has not been reloaded ( reset ) in time, because the program has run out of sequence ( endless loop, continuous IDLE mode, etc. ). During STOP mode the oscillator is halted, so then the Watchdog Timer is not running.

YKP1568VG5 Device is functionally identical to the PCA84c122A, Philips.




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