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LC75852W View Datasheet(PDF) - SANYO -> Panasonic

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LC75852W Datasheet PDF : 16 Pages
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LC75852E, 75852W
Control Data Functions
1. S0, S1 .................Sleep control data
This control data switches the LSI between normal mode and sleep mode. It also sets the key scan output standby
states for pins KS1 to KS6.
Control data
S0
S1
Mode
Oscillator
Segment outputs
Common outputs
0
0
Normal
Oscillator
Operation
0
1
Sleep
Stopped
L
1
0
Sleep
Stopped
L
1
1
Sleep
Stopped
L
Note: The KS1/S44 and KS2/S45 output pins are set to the key scan output state.
Key scan standby mode output pin states
KS1
KS2
KS3
KS4
KS5
KS6
H
H
H
H
H
H
L
L
L
L
L
H
L
L
L
L
H
H
H
H
H
H
H
H
2. K0, K1................Key scan output/segment output selection data
This control data switches the KS1/S44 and KS2/S45 output pins between the key scan output and segment output
functions.
Control data
K0
K1
0
0
0
1
1
X
X: don’t care
Output pin states
KS1/S44 KS2/S45
KS1
KS2
S44
KS2
S44
S45
Maximum number
of key inputs
30
25
20
3. P0, P1 .................Segment output port/general-purpose output port selection data
This control data switches the S1/P1 to S4/P4 output pins between the segment output port and the general-purpose
output port functions.
Control data
P0
P1
0
0
0
1
1
0
1
1
S1/P1
S1
P1
P1
P1
Output pin states
S2/P2 S3/P3
S2
S3
P2
S3
P2
P3
P2
P3
S4/P4
S4
S4
S4
P4
The table below lists the correspondence between the display data and the output pins when the general-purpose
output port function is selected.
Output
pin
S1/P1
S2/P2
S3/P3
S4/P4
Corresponding
display data
D1
D3
D5
D7
For example, if the output pin S4/P4 is set for use as a general-purpose output port, the output pin S4/P4 will output a
high level when the display data D7 is 1.
4. SC.......................Segment on/off control data
This control data controls the segment on/off states.
SC
Display state
0
On
1
Off
No. 4828-6/16
 

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