LC75852E Datasheet, PDF (15/16 Pages) Sanyo Semicon Device – Asynchronous Silicon Gate 1/2 Duty LCD Driver with On-Chip Key Input Function

LC75852E, 75852W
2. Controller key data reading under interrupt control
• Flowchart
• Timing Chart
t3 ..................Key scan execution time (800T [s]) when the key scan data for two key scans agrees
t4 ..................Key scan execution time (1600T [s]) when the key scan data for two key scans does not agree and a key scan is executed again
t5 ..................Key address (43H) transfer time
t6 ..................Key data read time
1
T = _fOSC
No. 4828-15/16