LC74731W Datasheet, PDF (8/38 Pages) Sanyo Semicon Device – On-Screen Display Controller

LC74731W,74732W
OSD Write (See figure 1.) at Ta = –30 to +70°C, V_DD1 = 5 ± 0.5 V
Parameter
Minimum input pulse width
Data setup time
Data hold time
One word write time
Symbol
Conditions
t_w (sclk)
t_w (cs)
t_su (cs)
t_su (sin)
t_h (cs)
t_h (sin)
t_word
t_wt
SCLK
CS (the period when CS is high)
CS
SIN
CS
SIN
The time to write 8 bits of data
RAM data write time
Supplementary Materials
CS
SCLK
SIN
t_su(cs) t_w(sclk) t_w(sclk)
t_su(sin) t_h(sin)
min
200
1
200
200
2
200
4.2
1
Ratings
typ
—
—
—
—
—
—
—
—
Unit
max
—
ns
—
µs
—
ns
—
ns
—
µs
—
ns
—
µs
—
µs
t_w(cs)
t_h(cs)
CS
SCLK
t_word
t_wt
01
567
01
4 56 7
Figure 1 OSD Serial Data Input Timing
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