®
IS61C1024AL, IS64C1024AL
ISSI
AC WAVEFORMS
READ CYCLE NO. 1(1,2)
t
RC
ADDRESS
t
AA
t
OHA
t
OHA
DATA VALID
DOUT
PREVIOUS DATA VALID
READ1.eps
READ CYCLE NO. 2(1,3)
t
RC
ADDRESS
OE
t
AA
t
OHA
t
HZOE
t
DOE
t
LZOE
CE1
CE2
t
t
ACE1
ACE2
t
t
HZCE1
HZCE2
t
t
LZCE1
LZCE2
HIGH-Z
DOUT
DATA VALID
CE2_RD2.eps
Notes:
1. WE is HIGH for a Read Cycle.
2. The device is continuously selected. OE, CE1 = VIL, CE2 = VIH.
3. Address is valid prior to or coincident with CE1 LOW and CE2 HIGH transitions.
6
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. B
01/24/05