HD66710 Datasheet, PDF (65/73 Pages) Hitachi Semiconductor – (Dot Matrix Liquid Crystal Display Controller/Driver)

HD66710
AC Characteristics (V_CC = 2.7V to 5.5V, T_a = –20°C to +75°C*³)
Clock Characteristics
Item
Symbol Min Typ Max Unit Test Condition Notes*
External External clock frequency f_cp
125 270 350 kHz
11
clock
External clock duty
Duty 45 50 55 %
operation
External clock rise time t_rcp
— — 0.2 µs
External clock fall time
t_fcp
— — 0.2 µs
R_f
Clock oscillation frequency f_OSC
190 270 350 kHz R_f = 91 kΩ,
12
oscillation
V_CC = 5V
Note: * Refer to the Electrical Characteristics Notes section following these tables.
Bus Timing Characteristics (1) (V_CC = 2.7V to 4.5V, T_a = –20°C to +75°C*³)
Write Operation
Item
Symbol Min
Typ
Enable cycle time
t_cycE
1000 —
Enable pulse width (high level)
PW_EH
450
—
Enable rise/fall time
t_Er, t_Ef
—
—
: Address set-up time (RS, R/ to E) t_AS
60
—
Address hold time
t_AH
20
—
Data set-up time
t_DSW
195
—
Data hold time
t_H
10
—
Max
—
—
25
—
—
—
—
Unit
ns
Test Condition
Figure 30
Read Operation
Item
Symbol Min
Typ
Enable cycle time
t_cycE
1000 —
Enable pulse width (high level)
PW_EH
450
—
Enable rise/fall time
t_Er, t_Ef
—
—
: Address set-up time (RS, R/ to E) t_AS
60
—
Address hold time
t_AH
20
—
Data delay time
t_DDR
—
—
Data hold time
t_DHR
5
—
Max
—
—
25
—
—
360
—
Unit
ns
Test Condition
Figure 31
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