HD44780U datasheet(58/59 Pages) HITACHI

Part #	HD44780U

Description	Dot Matrix Liquid Crystal Display Controller/Driver

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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58 / 59 page

HD44780U

58

Timing Characteristics

RS

R/W

E

DB0 to DB7

VIH1

VIL1

VIH1

VIL1

tAS

tAH

VIL1

tAH

PWEH

tEf

VIH1

VIL1

VIH1

VIL1

tEr

tDSW

tH

VIH1

VIL1

VIH1

VIL1

tcycE

VIL1

Valid data

Figure 25 Write Operation

RS

R/W

E

DB0 to DB7

VIH1

VIL1

VIH1

VIL1

tAS

tAH

VIH1

tAH

PWEH

tEf

VIH1

VIL1

VIH1

VIL1

tDDR

tDHR

tEr

VIL1

VOH1

VOL1 *

VOH1

* VOL1

Valid data

tcycE

Note:

* VOL1 is assumed to be 0.8 V at 2 MHz operation.

Figure 26 Read Operation

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HD44780U Datasheet(PDF) 58 Page - Hitachi Semiconductor

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