PT6584 Datasheet, PDF (10/42 Pages) Princeton Technology Corp – LCD Driver IC

LCD Driver IC
Tel:[phone]
Fax:[phone]
URL:http://www.princeton.com.tw
PT6584
CONTROL DATA
S0, S1: SLEEP CONTROL DATA
These control data bits switch between normal mode and sleep mode and set the states of the KS1 to
KS6 key scan outputs during key scan standby.
Control Data
S0
S1
Mode
OSC Oscillator
Segment Outputs Output Pin States During Key Scan Standby
Common Outputs KS1 KS2 KS3 KS4 KS5 KS6
0
0
Normal Oscillator operating
Operating
H
H
H
H
H
H
0
1
Sleep
Stopped
L
L
L
L
L
L
H
1
0
Sleep
Stopped
L
L
L
L
L
H
H
1
1
Sleep
Stopped
L
H
H
H
H
H
H
Note: This assumes that the KS1/S54 and KS2/S55 output pins are selected for key scan output.
K0, K1: KEY SCAN OUTPUT/SEGMENT OUTPUT SELECTION DATA
These control data bits switch the functions of the KS1/S54 and KS2/S55 output pins between key
scan output and segment output.
Control Data Output Pin State
K0 K1 KS1/S54 KS2/S55
0
0
KS1
KS2
0
1
S54
KS2
1
X
S54
S55
Notes:
1. X=Don’t care
2. KSn (n=1 or 2): Key scan output
3. Sn (n=54 or 55): Segment output
Maximum Number of Input Keys
30
25
20
PT6584 V1.1
- 10 -
August, 2006