LC75857E Datasheet, PDF (26/39 Pages) Sanyo Semicon Device – CMOS IC 1/3, 1/4 Duty LCD Display Drivers with Key Input Function

• 1/3 duty
LC75857E, LC75857W
VDD
VLCD
t1 t2
VDET
CE
Internal data
D1 to D42, SP,
KC0 to KC2, KSC, K0,
K1,P0 to P2, SC, DR,
DT, FC0 to FC2, OC
Internal data (D43 to D84)
Display and control data transfer
Undefined
VIL1
Defined
Undefined
Defined
Internal data (D85 to D126)
Undefined
System reset period
Defined
t3 t4
VDET
Undefined
Undefined
Undefined
• 1/4 duty
Note: t1 ≥ 1 [ms] (Logic block power supply voltage V_DD rise time)
t2 ≥ 0
t3 ≥ 0
t4 ≥ 1 [ms] (Logic block power supply voltage V_DD fall time)
Figure 5
VDD
VLCD
CE
Internal data
D1 to D44, SP,
KC0 to KC2, KSC, K0,
K1, P0 to P2, SC, DR,
DT,FC0 to FC2, OC
Internal data (D45 to D84)
Internal data (D85 to D124)
Internal data (D125 to D164)
t1 t2
VDET
Display and control data transfer
Undefined
Undefined
Undefined
Undefined
System reset period
VIL1
Defined
Defined
Defined
Defined
t3 t4
VDET
Undefined
Undefined
Undefined
Undefined
Note: t1 ≥ 1 [ms] (Logic block power supply voltage V_DD rise time)
t2 ≥ 0
t3 ≥ 0
t4 ≥ 1 [ms] (Logic block power supply voltage V_DD fall time)
Figure 6
No. 7980-26/39