HD66712 Datasheet, PDF (78/88 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver

HD66712U
System Interface Timing Characteristics (2) (V_CC = 4.5V to 5.5V, T_a = –20 to
+75°C*³)
Bus Write Operation
Item
Symbol Min
Typ
Max Unit
Enable cycle time
t_cycE
500
—
—
ns
Enable pulse width (high level)
PW_EH 230
—
—
Enable rise/fall time
t_Er, t_Ef
—
—
20
Address set-up time (RS, R/W to E) t_AS
40
—
—
Address hold time
t_AH
10
—
—
Data set-up time
t_DSW
80
—
—
Data hold time
t_H
10
—
—
Test Condition
Figure 34
Bus Read Operation
Item
Symbol Min
Typ
Max Unit
Enable cycle time
t_cycE
500
—
Enable pulse width (high level)
PW_EH 230
—
Enable rise/fall time
t_Er, t_Ef
—
—
Address set-up time (RS, R/W to E) t_AS
40
—
Address hold time
t_AH
10
—
Data delay time
t_DDR
—
—
Data hold time
t_DHR
5
—
—
ns
—
20
—
—
160
—
Test Condition
Figure 35
441