HD44780 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics

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componentes Descripción

Fabricante

HD44780

Dot Matrix Liquid Crystal Display Controller/Driver

Hitachi -> Renesas Electronics 

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

Symbol Min

Typ

High level

Low level

t CWH

t CWL

t CSU

t SU

t DH

t DM

t ct

800

—

800

—

500

—

300

—

300

—

–1000 —

—

—

Max

Unit

—

ns

—

—

—

—

1000

100

Test Condition

Figure 27

Power Supply Conditions Using Internal Reset Circuit

Item

Power supply rise time

Power supply off time

Symbol Min

Typ

Max

Unit

Test Condition

t rCC

0.1

—

10

ms

Figure 28

t OFF

1

—

—

53

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