LC75884E Datasheet, PDF (26/27 Pages) Sanyo Semicon Device – 1/4 Duty LCD Display Drivers with Key Input Function

2. Interrupt based key data acquisition
(1) Flowchart
LC75884E, LC75884W
(2) Timing chart
t5: Key scan execution time when the key data agreed for two key scans. (800T(S))
t6: Key scan execution time when the key data did not agree for two key scans and the key scan was executed again.
(1600T(S))
t7: Key address (43H) transfer time
t8: Key data read time
T = —f—o1sc—
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