Purdy AND1391ST-EO - Manual (Page 2)

Intelligent Graphics Display
AND1391ST-EO
Purdy Electronics Corporation • 720 Palomar Avenue • Sunnyvale, CA 94085
7/20/07 Tel: 408.523.8200 • Fax: 408.733.1287 • [email protected] • www.purdyelectronics.com 2
Note: Refer to Applications Section for definitions of viewing
angle, contrast ratio, response time (on and off) and
luminance.
Power Supply
The LCD panel is driven by the voltage V
DD
–V
EE
, so an
adjustable V
EE
is required for contrast control and
temperature compensation.
Timing Relationships and Diagram
Timing Diagram
Optical Characteristics (TA = 25˚C, φ = 0°, θ = 0)
Item Symbol Condition Min. Typ. Max. Unit
Viewing Angle θ C ≥ 2.0, φ =0° -40 – – degree
Contrast C θ =5°, φ =0° 5 7 – –
Response
Time (rise)
T
r
θ
=5°,
φ
=0° – 150 – ms
Response
Time (fall)
T
f
θ =5°, φ =0° – 300 – ms
Connector Pin Assignment
Pin No. Signal Function
1 FGND Frame Ground (connected to metal bezel)
2 V
SS
Power Supply (V
SS
=0)
3 V
DD
Power Supply (V
DD
>V
SS
)
4 V
O
Operating Voltage for LCD
5 WR Data Write (write data to the module at “L”)
6 RD Data Read (read data from the module at “L”)
7 CE Chip Enable for the modul (active at “L”)
8 C/D
WR = “L”; C/D = “H”: Command Write,
C/D = “L”: Data Write RD = “L”,
C/D = “H”: Command Read
C/D = “L”: Data Read
9 NC No connection
10 RESET Controller Reset (module reset)
11 D0 Data Input/Output (D0=MSB)
12 D1 Data Input/Output
13 D2 Data Input/Output
14 D3 Data Input/Output
15 D4 Data Input/Output
16 D5 Data Input/Output
17 D6 Data Input/Output
18 D7 Data Input/Output (D7=LSB)
19 FS
Font select. Open or connect to V
DD
: 6 x 8 dot font
Connect t o V
SS
: 8 x 8 dot
20 NC No connection
Temperature Variations
Temperature V
DD
–V
EE
(EO option)
0°C 14.1
+25°C 13.0
+50°C 11.1
Signal Timing Relationships
Item Symbol Min. Max. Unit
C/D Set-Up Time t
CDS
100 –
ns
C/D Hold Time t
CDH
10 –
CE, RD, WR
Pulse Width
t
CE
,t
RD
, t
WR
80 –
Data Set-Up Time t
DS
80 –
Data Hold Time t
DH
40 –
Access Time t
ACC
– 150
Output Hold Time t
OH
10 50