UPD16434 NEC, UPD16434 Datasheet - Page 20

• Manufacturer Part Number: UPD16434
• Description: 1/8/ 1/16 DUTY LCD CONTROLLER/DRIVER
• Manufacturer: NEC

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from the data memory and the timing signals supplied from the LCD timing control circuit, according to the select level,
non-select level, and phase supplied from the LCD voltage control circuit, and generates and outputs row and column
driver signals in order to directly drive the LCD.
These drivers perform switching of the analog level in correspondence to the contents of the display data read out
Notes 1. M
000
001
010
011
100
101
110
111
M
2
, M
3. Some other chip handles R8 to R15 outputs.
2. Some other chip handles R0 to R7 outputs.
1
M
R8/C49 are used as row signal outputs, and all 16 row signals are output
from this chip.
, M
Table 2–2. LCD Dual Mode Row Driver Function Selection
2
2
, M
, M
0
Note 1
1
1
, M
, M
0
0
is code specified by SMM command.
= 111 is for single chip configuration. In this case, R15/C42 to
8
16
Number of time
divisions
Data Sheet S10299EJ4V0DS00
R0 to R7
R8 to R15
R0 to R7
R0/R8 to R7/R15
Note 3
Note 2
C42 to C49
R15 to R8
R15/C42 to R8/C49
PD16434