WED9LAPC2C16V8BI 参数 Datasheet PDF下载

White Electronic Designs

FIG. 5 SDRAM POWER UP SEQUENCE

0

GCK

1

2

3

4

5

6

7

8

9

10

11

12

WED9LAPC2C16V8BC

13

14

15

16

17

18

19

t

RP

VCRAS#

t

RFC

t

RFC

VCCAS#

VCADDR

Key

RAa

VCBS

VCADDR9/AP

RAa

VCDATA

HIGH-Z

VCWE#

VCDQM#

High level is necessary

Precharge

(All Banks)

Auto Refresh

Auto Refresh

Mode Register Set

Row Active

(A-Bank)

DON’T CARE

White Electronic Designs Corp. reserves the right to change products or specifications without notice.

July, 2000

Rev. 0

12

White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com