LC75847T Datasheet, PDF (22/27 Pages) Sanyo Semicon Device – 1/3, 1/4 Duty General-Purpose LCD Driver

• 1/4 duty
VDD
LC75847T
t1
t2
t3
VLCD
INH
CE
D1 to D108
Internal data P0 to P3, CT0 to CT2,
DR, DT, FC, SC, BU
Internal data (D109 to D212)
Display and control data transfer
Undefined
VIL
tc
VIL
Defined
Undefined
Defined
Undefined
Undefined
Internal data (D213 to D316)
Undefined
Defined
Undefined
Internal data (D317 to D420)
Undefined
Figure 4
Defined
Undefined
Notes:
t1 ≥ 0
t2 > 0
t3 ≥ 0 (t2 > t3)
tc .......10µs min.
Notes on Controller Transfer of Display Data
Since the LC75847T accepts the display data (D1 to D318) divided into three separate transfer operations when using
1/3 duty drive scheme and the data (D1 to D420) divided into four separate transfer operations when 1/4 duty drive, we
recommend that applications transfer all of the display data within a period of less than 30 ms to prevent observable
degradation of display quality.
No. 7389-22/27