HD66789 Datasheet, PDF (116/156 Pages) Renesas Technology Corp – 528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit

HD66789
Preliminary
8-to-1 selector
The 8-to-1 selectors select a voltage level generated by the ladder resistors according to the fine adjustment
registers, and output six kinds of reference voltage, VIN1 to VIN 6. The relationship between the fine
adjustment register and the selected voltage is as follows.
Fine adjustment registers and selected voltage
The value of Register
PKP(N)[2:0]
000
001
010
011
100
101
110
111
Selected Voltage
VINP(N)1 VINP(N)2
KVP(N)1 KVP(N)9
KVP(N)2 KVP(N)10
KVP(N)3 KVP(N)11
KVP(N)4 KVP(N)12
KVP(N)5 KVP(N)13
KVP(N)6 KVP(N)14
KVP(N)7 KVP(N)15
KVP(N)8 KVP(N)16
VINP(N)3
KVP(N)17
KVP(N)18
KVP(N)19
KVP(N)20
KVP(N)21
KVP(N)22
KVP(N)23
KVP(N)24
VINP(N)4
KVP(N)25
KVP(N)26
KVP(N)27
KVP(N)28
KVP(N)29
KVP(N)30
KVP(N)31
KVP(N)32
VINP(N)5
KVP(N)33
KVP(N)34
KVP(N)35
KVP(N)36
KVP(N)37
KVP(N)38
KVP(N)39
KVP(N)40
VINP(N)6
KVP(N)41
KVP(N)42
KVP(N)43
KVP(N)44
KVP(N)45
KVP(N)46
KVP(N)47
KVP(N)48
Rev.0.12, May 09 2003, page 116 of 156