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HD66712 Datasheet, PDF (76/88 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver | |||
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HD66712U
System Interface Timing Characteristics (1) (VCC = 2.7V to 4.5V, Ta = â20 to
+75°C*3)
Bus Write Operation
Item
Enable cycle time
Enable pulse width (high level)
Enable rise/fall time
Address set-up time (RS, R/W to E)
Address hold time
Data set-up time
Data hold time
Symbol Min
tcycE
PWEH
tEr, tEf
tAS
tAH
tDSW
tH
1000
450
â
60
20
195
10
Typ
â
â
â
â
â
â
â
Max
â
â
25
â
â
â
â
Unit Test Condition
ns
Figure 34
Bus Read Operation
Item
Enable cycle time
Enable pulse width (high level)
Enable rise/fall time
Address set-up time (RS, R/W to E)
Address hold time
Data delay time
Data hold time
Symbol Min
tcycE
PWEH
tEr, tEf
tAS
tAH
tDDR
tDHR
1000
450
â
60
20
â
5
Typ
â
â
â
â
â
â
â
Max
â
â
25
â
â
360
â
Unit Test Condition
ns
Figure 35
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