EM65568 ELAN Microelectronics Corp, EM65568 Datasheet - Page 19

• Manufacturer Part Number: EM65568
• Description: 130 Com/ 128 Seg 4096 Color Stn Lcd Driver
• Manufacturer: ELAN Microelectronics Corp

6.4 LCD Drive Circuit Signals
* This specification is subject to be changed without notice.
SEGA0-A127
SEGB0-B127
SEGC0-C127
COM127
COM0-
Symbol
COMA
COMB
FLM
M/S
LP
M
I/O
I/O
I/O
I/O
O
O
O
O
I
The LP is latch clock I/O pin.
At the rising edge, count the display line counter. At the falling edge output the LCD drive
signal. This pin use in master/slave multi-chip system
M/S = “H”: LP is output
M/S = “L”: LP is input
I/O pin for LCD display synchronous signals (first line maker).
When FLM pin is set to “H”, the display start-line address is preset. This pin use in
master/slave multi-chip system. In the display line counter
M/S = “H”: FLM is output
M/S = “L”: FLM is input
I/O pin for alternated signals of LCD drive output.
M/S = “H”: M is output
M/S = “L”: M is input
This pin use in master/slave multi-chip system.
Maser/Slave mode select input pin
Fix to “H” or “L” at this terminal.
Segment output pins for LCD drives.
According to the data of the Display RAM data, non-lighted at “0”, lighted at “1” (Normal
Mode). non-lighted at “1”, lighted at “0” (Reverse Mode) and, by a combination of M signal
and display data, one signal level among V0,V2,V3 and VSS signal levels are selected.
(When Monochrome Display)
Common output pins for LCD drivers. By a combination of the scanning data and M signal,
one signal level among V0, V1, V4 and VSS signal level is selected.
Common output pin for LCD drive exclusively for icons.
Common output pin for LCD drive exclusively for icons.
M/S
H
Display RAM
L
Normal Mode
Reverse Mode
M Signal
Data
Master Enable
Slave Disable
State
Data
H
L
H
L
OSC
V2
V0
Power Supply Circuit
130 COM/ 128 SEG 4096 Color STN LCD Driver
M
H
H
L
L
Disable
Enable
V0
V2
19
VSS
V3
Description
VSS
Output level
V3
Output Output Output Output
VSS
Input
V1
V0
V4
LP
Input
FLM
Input
M
2005/3/8 (V1.2)
Input
CLK
EM65568