HD44780U 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HD44780U

Low-Power Dot-Matrix Liquid Crystal Display Controller/Driver with Key Scan Function

Hitachi -> Renesas Electronics 

I2C Bus Interface Timing

HD66727

Stop : P Start :S

Restart : Sr

Stop : P

V IH

V IH

V IH

V IH

V IH

SDA

V IL

V IL

V IL

V IL

t BUP

t STAH

t SCL

t SCLH

t SDAH

t STAS

t SDAS

t STOPS

SCL

V IH

V IH

V IH

V IH

V IL

V IL

V IL

t sf t SCLL t sr

Figure 59 I2C Bus Interface Timing

Reset Timing

t RES

RESET*

V IL

V IL

Figure 60 Reset Timing

97

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