Integrated Silicon Solution, Inc. — www.issi.com

3

Rev. 00A

11/22/2013

IS66WV51216EALL

IS66/67WV51216EBLL

TRUTH TABLE

I/O PIN

Mode

WE

CS1

CS2

OE

LB

UB

I/O0-I/O7

I/O8-I/O15

NotSelected

X

H

X

X

X

X

High-Z

High-Z

X

X

L

X

X

X

High-Z

High-Z

OutputDisabled

H

L

H

H

L

X

High-Z

High-Z

H

L

H

H

X

L

High-Z

High-Z

X

L

H

X

H

H

High-Z

High-Z

Read

H

L

H

L

L

H

High-Z

H

L

H

L

H

L

High-Z

H

L

H

L

L

L

write

L

L

H

X

L

H

High-Z

L

L

H

X

H

L

High-Z

L

L

H

X

L

L

IS66WV51216EALL

IS66WV51216EBLL

IS67WV51216EBLL

Range

Ambient Temperature

(70ns)

(55ns, 70ns)

(55ns, 70ns)

Industrial

–40°Cto+85°C

1.7V-1.95V

2.5V-3.6V

–

Automotive,A1 –40°Cto+85°C

–

–

2.5V-3.6V

Automotive,A2 –40°Cto+105°C

–

–

2.5V-3.6V

Note:

CS2inputsignalpinisonlyavailablefor48-ballminiBGApackageparts.CS2inputisinternallyenabledfor44-pinTSOP-IIpack-

age parts.

POWER-UP INITIALIzATION

IS66wV51216EALL/EBLLandIS67wV51216EBLLincludeanon-chipvoltagesensorusedtolaunchthepower-upinitializationprocess.

whenVDDreachesastablelevelatorabovetheVDD(min),thedevicewillrequire50μstocompleteitsself-initializationprocess.

Duringtheinitializationperiod,CSshouldremainHIGH.wheninitializationiscomplete,thedeviceisreadyfornormaloperation.

≥ 50us

VDD

VDD (min)

0V

Device Initialization

Device for Normal Operation