LC75813E(2013) Просмотр технического описания (PDF) - ON Semiconductor
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LC75813E Datasheet PDF : 26 Pages
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LC75813E, 75813T
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.
Control data
P0
P1
P2
P3
0
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
0
0
0
S1/P1
S1
P1
P1
P1
P1
P1
P1
P1
P1
S2/P2
S2
S2
P2
P2
P2
P2
P2
P2
P2
Note: Sn (n = 1 to 8): Segment output ports
Pn (n = 1 to 8): General-purpose output ports
S3/P3
S3
S3
S3
P3
P3
P3
P3
P3
P3
Output pin state
S4/P4 S5/P5
S4
S5
S4
S5
S4
S5
S4
S5
P4
S5
P4
P5
P4
P5
P4
P5
P4
P5
S6/P6
S6
S6
S6
S6
S6
S6
P6
P6
P6
S7/P7
S7
S7
S7
S7
S7
S7
S7
P7
P7
S8/P8
S8
S8
S8
S8
S8
S8
S8
S8
P8
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.
Output pin
S1/P1
S2/P2
S3/P3
S4/P4
S5/P5
S6/P6
S7/P7
S8/P8
Corresponding display data
1/3 duty
1/4 duty
D1
D1
D4
D5
D7
D9
D10
D13
D13
D17
D16
D21
D19
D25
D22
D29
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.
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.
DT
Duty drive scheme
0
1/4 duty drive
1
1/3 duty drive
Note: COM4: common output
S87: segment output
Output pin state (COM4/S87)
COM4
S87
No. 7159--11/26
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