12/23/04, v 2.6 Alliance Semiconductor 11 of 19
AS7C33512PFS32A
AS7C33512PFS36A
®
Key to switching waveforms
Timing waveform of read cycle
Note: Ý = XOR when LBO = high/no connect; Ý = ADD when LBO = low. BW[a:d] is don’t care.
don’t careFalling inputRising input
Undefined
CE1
t
CYC
t
CH
t
CL
t
ADSPS
t
ADSPH
t
AS
t
AH
t
WS
t
ADVS
t
OH
CLK
ADSP
ADSC
Address
GWE
, BWE
CE0, CE2
ADV
OE
Dout
t
CSS
t
HZC
t
CD
t
WH
t
ADVH
t
HZOE
t
ADSCS
t
ADSCH
LOAD NEW ADDRESS
ADV inserts wait states
Q(A2Ý10)
Q(A2Ý11)
Q(A3)
Q(A2)
Q(A2Ý01) Q(A3Ý01) Q(A3Ý10)
Q(A1)
A2A1 A3
t
OE
t
LZOE
t
CSH
Read
Q(A1)
Suspend
Read
Q(A1)
Read
Q(A2)
Burst
Read
Q(A
2Ý01
)
Read
Q(A3) DSEL
Burst
Read
Q(A
2Ý10
)
Suspend
Read
Q(A
2Ý10
)
Burst
Read
Q(A
2Ý11
)
Burst
Read
Q(A
3Ý01
)
Burst
Read
Q(A
3Ý10
)
Burst
Read
Q(A
3Ý11
)