HD66724 Datasheet, PDF (104/117 Pages) Hitachi Semiconductor – (Graphics LCD Controller/Driver with Key Scan Function)

HD66724/HD66725
80-System Bus Interface Timing Characteristics
(Vcc = 1.8 to 2.7 V)
Item
Symbol Min Typ Max
Bus cycle time
Write t_CYCW 800
—
—
Read t_CYCR 1200 —
—
Write low-level pulse width
PW_LW 150
—
—
Read low-level pulse width
PW_LR 450
—
—
Write high-level pulse width
PW_HW 300
—
—
Read high-level pulse width
PW_HR 450
—
—
Write/Read rise/fall time
t_WRr , _WRf
—
— 25
Setup time (RS to CS*, WR*, RD*)
t _AS
60 — —
Address hold time
t _AH
20 — —
Write data set-up time
t _DSW
60
—
—
Write data hold time
t_H
20 — —
Read data delay time
t _DDR
—
— 400
Read data hold time
t _DHR
5
——
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Condition
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
(Vcc = 2.7 to 5.5 V)
Item
Symbol Min
Bus cycle time
Write t_CYCW 500
Read t_CYCR
700
Write low-level pulse width
PW_LW
80
Read low-level pulse width
PW_LR 300
Write high-level pulse width
PW_HW 250
Read high-level pulse width
PW_HR 300
Write/Read rise/fall time
t_{WRr, WRf}
—
Setup time (RS to CS*, WR*, RD*)
t _AS
60
Address hold time
t _AH
20
Write data set-up time
t _DSW
60
Write data hold time
t_H
20
Read data delay time
t _DDR
—
Read data hold time
t _DHR
5
Typ Max
——
——
——
——
——
——
— 25
——
——
——
——
— 250
——
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Condition
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
Figure 66
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