6.3 Interface Timing Chart
AC Characteristics (VCC = 2.7 to 5.5V, Ta = –30 to +75°C*3)
Write Operation
Item
Symbol
Min Typ Max Unit
Enable cycle time
t cycE
1000 —
—
ns
Enable pulse width (high level)
PWEH
450 —
—
Enable rise/fall time
tEr, tEf
—
—
25
Address set-up time (RS, R/W to E) tAS
40
—
—
Address hold time
t AH
20
—
—
Data set-up time
t DSW
195 —
—
Data hold time
tH
10
—
—
Read Operation
Item
Symbol
Enable cycle time
Enable pulse width (high level)
t cycE
PWEH
Enable rise/fall time
tEr, tEf
Address set-up time (RS, R/W to E) tAS
Address hold time
t AH
Data delay time
t DDR
Data hold time
t DHR
Min Typ Max Unit
1000 —
—
ns
450 —
—
—
—
25
40
—
—
20
—
—
—
—
350
10
—
—
Test Condition
Test Condition