ST7921 datasheet(9/11 Pages) SITRONIX

9 / 11 page

ST7921

Ver 1.6

9/11

2005/05/24

D.C Characteristics:

Symbol

Parameter

Test Condition

Min.

Typ. Max.

Unit

Applicable pin

VDD

Operating Voltage

2.7

5.5

VLCD

Driver Supply Voltage

V0-VSS

VIH

Input High Voltage

0.7VDD

VDD

VIL

Input Low Voltage

0.3VDD

ILKG

Input Leakage Current

VIN = 0 ~ VDD

-5

CL1,CL2,M,SHL1,SHL2

DL1,DL2,DR1,DR2

VOH

Output High Voltage

IOH = -0.4mA

VDD-0.4

VOL

Output Low Voltage

IOL = +0.4mA

0.4

DL1,DL2,DR1,DR2

V1~V4, S1~S80

IDD

Operating Current

FCL2 = 400KHZ

280

460

VDD,V0

Leakage Current

VIN = VDD ~ VSS

-10

V1 ~ V4

A.C Characteristics :

Symbol

Parameter

Test Condition Min.

Max.

Unit

Applicable pin

FCL

Data Shift Frequency

400

KHZ

CL2

TWCKH

Clock High Level Width

800

CL1,CL2

TWCKL

Clock Low Level Width

800

CL2

TSL

Clock Set-up Time

CL2

CL1

500

CL1,CL2

TLS

Clock Set-up Time

CL1

CL2

500

CL1,CL2

TR/TF

Clock Rise/Fall Time

200

CL1,CL2

TSU

Data Set-up Time

300

DL1,DL2,DR1,DR2

TDH

Data Hold Time

300

DL1,DL2,DR1,DR2

Data Delay Time

CL = 15 PF

500

DL1,DL2,DR1,DR2

Maximum Absolute Ratings :

Symbol

Parameters

Min.

Max.

Unit

VDD

Supply Voltage

-0.3

TOPR

Operating Temperature

-20

TSTG

Storage Temperature

-55

125

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