HD44780 Hitachi Semiconductor (acquired by Renesas), HD44780 Datasheet - Page 50

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

HD44780U
Interface Timing Characteristics with External Driver
Item
Clock pulse width
Clock set-up time
Data set-up time
Data hold time
M delay time
Clock rise/fall time
Power Supply Conditions Using Internal Reset Circuit
Item
Power supply rise time
Power supply off time
50
High level
Low level
Symbol
t
t
t
t
t
t
t
Symbol
t
t
CWH
CWL
CSU
SU
DH
DM
ct
r CC
OFF
Min
800
800
500
300
300
–1000
—
Min
0.1
1
Typ
—
—
—
—
—
—
—
Typ
—
—
Max
10
—
Max
—
—
—
—
—
1000
200
Unit
ns
Unit
ms
Test Condition
Figure 27
Test Condition
Figure 28