AS7C332MNTD18A
®
Key to switching waveforms
Rising input
Falling input
Undefined/don’t care
Timing waveform of read/write cycle
tCH tCL
tCYC
CLK
tCENS
tCENH
CEN
CE1
tCSS
tCSH
CE0, CE2
tADVS
tADVH
ADV/LD
tWS
tWH
R/W
tWS
tWH
BWn
tAS
tAH
A3
A4
A5
A6
A7
A1
A2
ADDRESS
tCD
tLZC
tDS tDH
tOH
tOE
tHZC
D/Q
pipelined
D(A5)
Q(A6)
D(A1)
D(A2)
Q(A3)
Q(A4)
Q(A4Ý01)
D(A2Ý01)
tHZOE
tLZOE
OE
D/Q
flow-through
Q(A4Ý01)
D(A5)
Q(A6)
Q(A7)
D(A1)
D(A2)
D(A2Ý01)
Q(A3)
Q(A4)
BURST
READ
Q(A4Ý01)
READ
Q(A3)
DSEL
WRITE
D(A2)
BURST
WRITE
D(A2Ý01)
WRITE
D(A5)
READ
Q(A6)
WRITE
D(A7)
READ
Q(A4)
WRITE
D(A1)
Command
Note: Ý = XOR when LBO = high/no connect. Ý = ADD when LBO = low. BW[a,b] is don’t care.
4/26/04, V 1.2
Alliance Semiconductor
P. 17 of 22
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
