AS7C251MFT32A ALSC [Alliance Semiconductor Corporation], AS7C251MFT32A Datasheet - Page 11

• Manufacturer Part Number: AS7C251MFT32A
• Description: 2.5V 1M x 32/36 Flow-through synchronous SRAM
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

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.
GWE, BWE
1/17/05, v 1.2
CE0, CE2
Address
ADSP
ADSC
ADV
CLK
CE1
Dout
OE
t
ADSPS
Rising input
t
t
CSS
AS
t
LZOE
A1
t
ADVS
t
t
t
t
Q(A1)
CSH
Read
t
ADSPH
AH
WS
OE
t
ADSCS
Suspend
Q(A1)
Read
Q(A1)
t
t
WH
ADVH
A2
Q(A2)
Read
t
t
ADSCH
HZOE
Q(A 2Ý01 )
Falling input
Alliance Semiconductor
Read
Burst
Q(A2Ý01)
t
CH
Q(A 2Ý10 )
t
LOAD NEW ADDRESS
OH
t
CD
Read
Burst
Q(A2Ý10)
t
Q(A 2Ý10 )
t
CYC
Suspend
ADV inserts wait states
CL
Read
®
Q(A 2Ý11 )
Burst
Read
Q(A2Ý11)
don’t care
A3
Q(A3)
Read
Q(A3)
Q(A 3Ý01 )
Read
Burst
Q(A3Ý01)
Q(A 3Ý10 )
Read
Burst
Q(A3Ý10)
AS7C251MFT32A
AS7C251MFT36A
Q(A 3Ý11 )
Burst
Read
Q(A3Ý11)
t
HZC
DSEL
Undefined
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