LC75857E Datasheet, PDF (16/39 Pages) Sanyo Semicon Device – CMOS IC 1/3, 1/4 Duty LCD Display Drivers with Key Input Function

Serial Data Output
1. When CL is stopped at the low level
LC75857E, LC75857W
CE
CL
DI
11000010
B0 B1 B2 B3 A0 A1 A2 A3
DO
X KD1 KD2
Note: B0 to B3, A0 to A3······CCB address
2. When CL is stopped at the high level
KD27 KD28 KD29 KD30 SA
Output data
X: don't care
CE
CL
DI
1100001
0
B0 B1 B2 B3 A0 A1 A2 A3
DO
X KD1 KD2 KD3
KD28 KD29 KD30 SA X
Output data
X: don't care
Note: B0 to B3, A0 to A3······CCB address
CCB address ^...... 43H
KD1 to KD30........ Key data
SA........................ Sleep acknowledge data
Note: If a key data read operation is executed when DO is high, the read key data (KD1 to KD30) and sleep acknowledge data(SA) will be invalid.
No. 7980-16/39