IS42S16800A-7TI 데이터 시트보기 (PDF) - Integrated Silicon Solution

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IS42S16800A-7TI

16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM

Integrated Silicon Solution 

IS42S81600A, IS42S16800A, IS42S32400A

ISSI ®

OPERATING FREQUENCY / LATENCY RELATIONSHIPS

SYMBOL PARAMETER

-6

-7

-10.

UNITS

—

Clock Cycle Time

6

7

10

ns

—

Operating Frequency

166

143

100

MHz

tCCD

READ/WRITE command to READ/WRITE command

1

1

1

cycle

tCKED

CKE to clock disable or power-down entry mode

1

1

1

cycle

tPED

CKE to clock enable or power-down exit setup mode

1

1

1

cycle

tDQD

DQM to input data delay

0

0

0

cycle

tDQM

DQM to data mask during WRITEs

0

0

0

cycle

tDQZ

DQM to data high-impedance during READs

2

2

2

cycle

tDWD

WRITE command to input data delay

0

0

0

cycle

tDAL

Data-in to ACTIVE command

5

4

4

cycle

tDPL

Data-in to PRECHARGE command

2

2

2

cycle

tBDL

Last data-in to burst STOP command

1

1

1

cycle

tCDL

Last data-in to new READ/WRITE command

1

1

1

cycle

tRDL

Last data-in to PRECHARGE command

2

2

2

cycle

tMRD

LOAD MODE REGISTER command

to ACTIVE or REFRESH command

2

2

2

cycle

tROH

Data-out to high-impedance from

CL = 3

PRECHARGE command

CL = 2

3

3

3

cycle

2

2

2

18

Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774

PRELIMINARY INFORMATION Rev. 00C

01/20/05

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