HD44780 Hitachi Semiconductor (acquired by Renesas), HD44780 Datasheet - Page 58

• Manufacturer Part Number: HD44780
• Description: Dot Matrix Liquid Crystal Display Controller/driver
• Manufacturer: Hitachi Semiconductor (acquired by Renesas)

HD44780U
Timing Characteristics
58
RS
R/W
E
DB0 to DB7
RS
R/W
E
DB0 to DB7
Note:
* VOL1 is assumed to be 0.8 V at 2 MHz operation.
VIH1
VIL1
VIL1
VIH1
VIL1
VIH1
t
t
AS
AS
Figure 25 Write Operation
Figure 26 Read Operation
VIH1
VIL1
VIH1
VIL1
t
DDR
t
t
Er
Er
PW
PW
VIH1
VIL1
VOH1
VOL1 *
EH
EH
t
DSW
VIH1
VIL1
VIH1
VIL1
Valid data
Valid data
t
t
cycE
cycE
t
t
t
t
t
t
t
DHR
t
AH
AH
Ef
AH
AH
Ef
H
* VOL1
VOH1
VIH1
VIH1
VIL1
VIH1
VIL1
VIH1
VIL1
VIL1
VIL1
VIL1