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

White Electronic Designs

EDI88128C

April 2005

Rev. 17

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

ADDRESS

DATA IN

WRITE CYCLE 2 - EARLY WRITE, CS1# CONTROLLED

DATA VALID

WE#

CS1#

CS2

ADDRESS

DATA IN

WRITE CYCLE 3 - EARLY WRITE, CS2 CONTROLLED

DATA VALID

WE#

CS1#

CS2

FIGURE 2 – TIMING WAVEFORM — READ CYCLE

FIGURE 4 – WRITE CYCLE 2

FIGURE 3 – WRITE CYCLE 1

WRITE CYCLE 3

ADDRESS

DATA I/O

READ CYCLE 1 (WE# HIGH; OE#, CS# LOW)

DATA 2

ADDRESS 1

ADDRESS 2

DATA 1

ADDRESS

DATA I/O

READ CYCLE 2 (WE# HIGH)

OE#

CS2

CS1#

ADDRESS

DATA IN

WRITE CYCLE 1 - LATE WRITE, WE# CONTROLLED

DATA VALID

HIGH Z

WE#

CS1#

DATA OUT