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ENN7159 Datasheet(PDF) 11 Page - Sanyo Semicon Device

Part # ENN7159
Description  1/3, 1/4 Duty General-Purpose LCD Driver
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

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Control Data Functions
1. P0 to P3: Segment output port/general-purpose output port switching control data.
These control data bits switch the S1/P1 to S8/P8 output pins between their segment output port and general-purpose
output port functions.
Note: Sn (n = 1 to 8): Segment output ports
Pn (n = 1 to 8): General-purpose output ports
Also note that when the general-purpose output port function is selected, the output pins and the display data will
have the correspondences listed in the tables below.
For example, when 1/4 duty drive scheme is used, if the general-purpose output port function is selected for the
S4/P4 output pin, that output pin will output a high level (VLCD) when the display data D13 is 1, and a low level
(VSS) when the D13 is 0.
No. 7159--11/26
LC75813E, 75813T
Control data
Output pin state
P0
P1
P2
P3
S1/P1
S2/P2
S3/P3
S4/P4
S5/P5
S6/P6
S7/P7
S8/P8
0
0
0
0
S1
S2
S3
S4
S5
S6
S7
S8
0
0
0
1
P1
S2
S3
S4
S5
S6
S7
S8
0
0
1
0
P1
P2
S3
S4
S5
S6
S7
S8
0
0
1
1
P1
P2
P3
S4
S5
S6
S7
S8
0
1
0
0
P1
P2
P3
P4
S5
S6
S7
S8
0
1
0
1
P1
P2
P3
P4
P5
S6
S7
S8
0
1
1
0
P1
P2
P3
P4
P5
P6
S7
S8
0
1
1
1
P1
P2
P3
P4
P5
P6
P7
S8
1
0
0
0
P1
P2
P3
P4
P5
P6
P7
P8
Output pin
Corresponding display data
1/3 duty
1/4 duty
S1/P1
D1
D1
S2/P2
D4
D5
S3/P3
D7
D9
S4/P4
D10
D13
S5/P5
D13
D17
S6/P6
D16
D21
S7/P7
D19
D25
S8/P8
D22
D29
2. DR: 1/2 bias drive or 1/3 bias drive switching control data
This control data bit selects either 1/2 bias drive or 1/3 bias drive.
DR
Bias drive scheme
0
1/3 bias drive
1
1/2 bias drive
3. DT: 1/3 duty drive or 1/4 duty drive switching control data
This control data bit selects either 1/3 duty drive or 1/4 duty drive.
Note: COM4: common output
S87: segment output
DT
Duty drive scheme
Output pin state (COM4/S87)
0
1/4 duty drive
COM4
1
1/3 duty drive
S87


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