LC75890W Datasheet, PDF (28/32 Pages) Sanyo Semicon Device – 1/4duty and Static Drive General-Purpose LCD Display Drivers

(2)Static drive
VDD
LC75890W, LC75890E
t1
VLCD
INH
CE
Internal data
BD1 to BD37,BF0 to BF2,
FC0 to FC2,DT,EXF,OC,SC,BU
W10 to W15,W20 to W25,
Internal data W30 to W35,PF0 to PF3,P1A,
P1B to P12A,P12B,P0 to P3
Internal data (D1 to D37)
Display data and control
data transferred
Undefined
VIL1
tc
VIL1
Undefined
Undefined
Defined
Defined
Defined
t2
t3
Undefined
Undefined
Undefined
Note1 : t1≥0
t2>0
t3≥0 (t2>t3)
tc … 10μs min
Note2 : In the case of the LC75890E(QIP44M), the display data are effective for only D1 to D11, D13 to D23,
D25 to D34, and D37, the display blinking control data is effective for only BD1 to BD11, BD13 to
BD23, BD25 to BD34, and BD37, and the general-purpose output function/PWM output function
switiching control data of the general-purpose output port are effective for only P1A, P1B to P11A,
P11B.
[Figure 5]
Notes on Controller Transfer of Display Data
When using the LC75890 in 1/4 duty, applications transfer the display data (D1 to D148) in three operations. In either
case, applications should transfer all of the display data within 30 ms to maintain the quality of displayed image.
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