AND1741 Datasheet, PDF (3/4 Pages) Purdy Electronics Corporation – Intelligent Graphics Display

AND1741MST
Intelligent Graphics Display
Power Supply
LCD panel is driven by the voltage V_DD–V_EE, so adjustable
V_EE is required for contrast control and temperature
compensation.
Temperature Variations
Temperature
0°C
V_DD–V_EE (MST)
21.0
V_DD–V_EE (BST)
20.0
+25°C
19.5
18.5
+50°C
17.6
16.6
Timing Relationships and Diagram
Signal Timing Relationships
Item
Symbol Min. Max. Unit
C/D Set Up Time
C/D Hold Time
CE, RD, WR
Pulse Width
Data Set Up Time
Data Hold Time
Access Time
Output Hold Time
t_CDS
100
–
t_CDH
10
–
t_CEt_RD,t_WR
80
t_DS
80
t_DH
40
t_ACC
–
t_OH
10
–
–
ns
–
150
50
Timing Diagram
Block Diagram
C/D
CE
RD, WR
D0-D7
(WRITE)
D0-D7
(READ)
t_CDS
t_CP,t_RD,t_WP
t_DS
t_ACC
t_CDH
t_DH
t_OH
8
D0-D7
WR
RD
CE
C/D
RESET
D0-D7
AD0-AD12
T6963C
HSCP
FR
LP
CDATA
8
I/O0-I/O7
13
A0-A12
R/W
RAM
CE1 ^{(8K byte)}
ED
Because signal lines are directly connected
to C-MOS and are not pull-up or pull-down
internally, except RESET which is pull-up to
V_DD, you must guard all signals from
external noise.
X-Driver
X-Driver
X-Driver
Control Lines
80
80
80
64
Y-Driver
64
Y-Driver
LCD
V_FL
Backlight
V_FL
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
3
Tel: [phone] • Fax: [phone] • [e-mail] • www.purdyelectronics.com
7/20/07