HT16LK24 Datasheet, PDF (30/67 Pages) Holtek Semiconductor Inc – RAM Mapping 67×4/63×8 LCD Driver with Key Scan

HT16LK24
Display RAM Page Write Operation
After a START condition the slave address with the R/W bit is placed on the bus followed with a display data input
command byte and the specified display RAM Register Address of which the contents are written to the internal
address pointer. The data to be written to the memory will be transmitted next and then the internal address pointer will
be incremented by 1 to indicate the next memory address location after the reception of an acknowledge clock pulse.
After the internal address point reaches the maximum memory address, the address pointer will be reset to 00H.
Duty
1/1, 1/2, 1/3, 1/4
1/8
Maximum Memory Address
21H
3EH
Slave Address
S01111010
Command byte
10000000
Register Address byte
X X A5 A4 A3 A2 A1 A0
Write
1st
2nd
ACK
ACK
ACK
Data byte
D7 D6 D5 D4 D3 D2 D1 D0
Data byte
D7 D6 D5 D4 D3 D2 D1 D0
Data byte
D7 D6 D5 D4 D3 D2 D1 D0
P
1st data
2nd data
Nth data
ACK
ACK
ACK
ACK
I²C Interface N Bytes Display RAM Data Write Operation
Rev. 1.20
30
November 25, 2015