pt6584 Princeton Technology Corp., pt6584 Datasheet - Page 7

• Manufacturer Part Number: pt6584
• Description: Lcd Driver Ic - Princeton Technology Corp
• Manufacturer: Princeton Technology Corp.

LCD Driver IC
PIN DESCRIPTION
COM4/S74
PT6584 V1.1
KS3 ~ KS6
Pin Name
S4 ~ S53
KI1 ~ KI5
KS1/S54
KS2/S56
VLCD1
VLCD2
COM1
COM2
COM3
S1/P1
S2/P2
S3/P3
S4/P4
VLCD
TEST
/RES
OSC
VDD
VSS
DO
CE
CL
DI
I/O
I/O
O
O
O
O
-
-
I
I
I
I
I
I
I
I
-
Active
H
H
L
-
-
-
-
-
-
-
-
-
-
-
-
Handling
unused
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
when
GND
GND
VDD
VDD
-
-
-
-
Segment outputs for displaying the display data transferred
by serial data input.
The S1/P1 to S4/P4 pins can be used as general-purpose
output ports under serial data control.
Common driver outputs
The frame frequency fo is given by: fo = (fOSC/512)Hz.
Key scan outputs
Although normal key scan timing lines require diodes to be
inserted in the timing lines to prevent shorts, since these
outputs are unbalanced CMOS transistor outputs, these
outputs will not be damaged by shorting when these outputs
are used to form a key matrix. The KS1/S54 and KS2/S55
pins can be used as segment outputs when so specified by
the control data.
Key scan inputs
These pins have built-in pull-down resistors.
Oscillator connection
An oscillator circuit is formed by connecting an external
resistor and capacitor at this pin.
Serial data interface connections to the controller. Note that
DO, being an open-drain output, requires a pull-up resistor.
CE: Chip enable
CL: Synchronization clock
DI: Transfer data
DO: Output data
Reset signal input
/RES=low ---- Display off
/RES=high --- Display on
However, serial data can be transferred when /RES is low.
This pin must be connected to ground
Used for applying the LCD drive 2/3 bias voltage externally.
Must be connected to VLCD2 when a 1/2 bias drive scheme
is used.
Used for applying the LCD drive 1/3 bias voltage externally.
Must be connected to VLCD1 when a 1/2 bias drive scheme
is used.
Logic block power supply connection. Provide a voltage of
between 3.3 and 6.0V.
LCD driver block power supply connection. Provide a voltage
of between VDD-0.5 and 6.0V.
Power supply connection. Connect to ground.
Key scan disabled
All key data is reset to low
Key scan enabled
- 7 -
Description
URL:http://www.princeton.com.tw
Fax:[phone]
Tel:[phone]
5 ~ 53
QFP
60 ~
64 ~
PT6584
August, 2006
54
55
56
57
58
59
63
68
75
78
79
80
77
76
74
71
72
69
70
73
1
2
3
4
Pin No.
3 ~ 51
LQFP
58 ~
62 ~
79
80
52
53
54
55
56
57
61
66
73
76
77
78
75
74
72
69
70
67
68
71
1
2