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

White Electronic Designs

WE128K32-XXX

March 2006

Rev. 10

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

READ

The WE128K32-XXX stores data at the memory location

determined by the address pins. When CS# and OE# are

low and WE# is high, this data is present on the outputs.

When CS# and OE# are high, the outputs are in a high

impedance state. This two line control prevents bus

contention.

Notes:

AC READ CHARACTERISTICS

Read Cycle Parameter

Symbol

-120

-140

-150

-200

-250

-300

Unit

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Read Cycle Time

120

140

150

200

250

300

ns

Address Access Time

120

140

150

200

250

300

ns

Chip Select Access Time

120

140

150

200

250

300

ns

Output Hold from Add. Change, OE# or CS#

000000

ns

Output Enable to Output Valid

050055055055085085

ns

Chip Select or OE# to High Z Output

60

70

70

70

70

70

ns

FIGURE 7 – READ WAVEFORMS

t

ADDRESS

CS#

OE#

OUTPUT

OH

OUTPUT

VALID

ADDRESS VALID

HIGH Z