LC75890W Datasheet, PDF (21/32 Pages) Sanyo Semicon Device – 1/4duty and Static Drive General-Purpose LCD Display Drivers

LC75890W, LC75890E
(12) P0 to P3 … Segment output port/general-purpose output port switching control data
These control data bits switch the segment output port/general-purpose output port functions of the S1/P1 to
S12/P12 output pins.
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 S9/P9 S10/P10 S11/P11 S12/P12
0000
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
0001
P1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
0010
P1
P2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
0011
P1
P2
P3
S4
S5
S6
S7
S8
S9
S10
S11
S12
0100
P1
P2
P3
P4
S5
S6
S7
S8
S9
S10
S11
S12
0101
P1
P2
P3
P4
P5
S6
S7
S8
S9
S10
S11
S12
0110
P1
P2
P3
P4
P5
P6
S7
S8
S9
S10
S11
S12
0111
P1
P2
P3
P4
P5
P6
P7
S8
S9
S10
S11
S12
1000
P1
P2
P3
P4
P5
P6
P7
P8
S9
S10
S11
S12
1001
P1
P2
P3
P4
P5
P6
P7
P8
P9
S10
S11
S12
1010
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
S11
S12
1011
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
S12
1100
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
Note1: Sn (n=1 to 12)…Segment output port Pn (n=1 to 12)…General-purpose output port
Note2: In the case of the LC75890E(QIP44M), the output pins are effective for only S1/P1 to S11/P11 pins.
Note3: When are setting (P0, P1, P2, P3)=(1, 1, 0, 1), (1, 1, 1, 0) and (1, 1, 1, 1), the all S1/P1 to S12/P12 output pins
are selected the segment output port.
The table below lists the correspondence between the display data and the output pins when these pins are selected to be
general-purpose output ports (general-purpose output function).
Output pin
Correspondence display data
1/4 duty drive
Static drive
S1/P1
D1
D1
S2/P2
D5
D2
S3/P3
D9
D3
S4/P4
D13
D4
S5/P5
D17
D5
S6/P6
D21
D6
S7/P7
D25
D7
S8/P8
D29
D8
S9/P9
D33
D9
S10/P10
D37
D10
S11/P11
D41
D11
S12/P12
D45
D12
For example, if the circuit is operated in 1/4 duty and the S4/P4 output pin is selected to be a general-purpose output
port and is set general-purpose output function, the S4/P4 output pin will output a high (VLCD) level when the
display data D13 is 1, and will output a low (VSS) level when D13 is 0.
No.A1971-21/32