S1C63666 TECHNICAL MANUAL
EPSON
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APPENDIX S5U1C63000P1 MANUAL (PERIPHERAL CIRCUIT BOARD FOR S1C63666)
<Internal power supply circuit>
- Although this board contains VDC0–VDC3 registers, it does not actually exercise power supply
control by these registers. Be sure to refer to the technical manual for the S1C63666 when setting the
correct voltage. Also, when switching the control voltages, consult the technical manual to determine
the appropriate wait time to be inserted.
- The LCD drive voltage on this board is different from that on the actual IC.
- Since the usable operating frequency range depends on the device's internal operating voltage,
consult the technical manual for the S1C63666 to ensure that the device will not be operated with an
inappropriate combination of the operating frequency and the internal power supply.
<Analog comparator circuit>
The analog comparator response time is different from that of the actual IC. Consult the technical
manual for the S1C63666 to determine the appropriate wait time to be inserted.