HT1628 datasheet(4/17 Pages) HOLTEK

4 / 17 page

Rev. 1.00

December 20, 2016

HT1628

Timing Diagrams

Figure 1

Figure 2

Data

WRB

Clock

WRB, RDB

Clock

50%

tsu1

50%

th1

tCS

Figure 3

First clock

Last clock

CSB

WRB, RDB

Clock

tpd

50%

Figure 4

Data

RDB

Clock

50%

90%

10%

90%

10%

50%

tCLK

Valid Data

tsu

50%

D.C. Characteristics

Ta = -40°C to +85°C

Symbol

Parameter

Test Conditions

Min.

Typ.

Max. Unit

VDD

Conditions

VDD

Operating Voltage

—

2.4

—

5.5

IDD1

Operating Current

No load, VDD=VLCD, LCD ON

—

120

μA

—

100

200

μA

IDD2

Operating Current

No load , VDD=VLCD, LCD OFF

—

μA

—

μA

ISTB

Standby Current

No load, Power Down Mode

—

μA

—

μA

VIL

Input Low Voltage

DATA, CSB, WRB, RDB

—

0.6

—

VIH

Input High Voltage

DATA, CSB, WRB, RDB

2.4

—

IOL1

DATA Sink Current

VOL=0.3V

0.3

0.5

—

VOL=0.5V

0.5

—

IOH1

DATA Source Current

VOH=2.7V

-0.3

-0.5

—

VOH=4.5V

-0.5

-1

—

IOL2

LCD Common Sink Current

VOL=0.3V

100

200

—

μA

VOL=0.5V

190

380

—

μA

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