PT6547 Datasheet, PDF (10/35 Pages) Princeton Technology Corp – LCD Driver IC with Key Input Function

LCD Driver IC with Key Input Function
PT6547 KEY MATRIX
PT6547 Key Matrix consists of 6 x 5 arrays as shown below:
KI1
KI2
KI3
KI4
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PT6547
KI5
KS1 KS2 KS3 KS4 KS5 KS6
Each data inputted by each key are stored as follows. They are read by a Read Command, starting
from the least significant bit.
KI1……KI5 KI1……KI5 KI1……KI5 KI1……KI5 KI1……KI5 KI1……KI5
KS1
KS2
KS3
KS4
KS5
KS6
Reading Sequence
PT6547 V1.2
- 10 -
January, 2006