4 / 10 page
4
White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
WMS512K8-XXX
WS32K32-XHX
TIMING WAVEFORM - READ CYCLE
WRITE CYCLE - CS CONTROLLED
WRITE CYCLE - WE CONTROLLED
ADDRESS
DATA I/O
WRITE CYCLE 1, WE CONTROLLED
tAW
tCW
tAH
tWP
tDW
tWHZ
tAS
tOW
tDH
tWC
DATA VALID
CS
WE
ADDRESS
DATA I/O
WRITE CYCLE 1 WE CONTROLLED (OE = VIH)
tAW
tCW
tAH
tWP
tDW
tWHZ(1)
tAS
tOW
tDH
tWC
DATA VALID
(1) GUARANTEED BY DESIGN BUT NOT TESTED
CS
WE
ADDRESS
DATA I/O
READ CYCLE 2 (WE = VIH)
tAA
tACS
tOE
tCLZ
tOLZ
tOHZ
tRC
DATA VALID
HIGH IMPEDANCE
CS
OE
tCHZ
ADDRESS
DATA I/O
READ CYCLE 1 (CS = OE = VIL, WE = VIH)
tAA
tOH
tRC
DATA VALID
PREVIOUS DATA VALID