AS7C251MPFS32A ALSC [Alliance Semiconductor Corporation], AS7C251MPFS32A Datasheet - Page 12

• Manufacturer Part Number: AS7C251MPFS32A
• Description: 2.5V 1M x 32/36 pipelined burst synchronous SRAM
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

Timing waveform of write cycle
Note: Ý = XOR when LBO = high/no connect; Ý = ADD when LBO = low.
2/14/05,
CE0, CE2
BW[a:d]
Address
ADSC
ADSP
BWE
ADV
CLK
Din
CE1
OE
v.1.3
t
ADSPS
t
CSS
t
AS
A1
Q(A1)
Read
t
t
AH
ADSPH
t
CSH
t
CH
D(A1)
D(A1)
Write
pend
Sus-
A2
t
t
CYC
CL
ADV SUSPENDS BURST
Q(A2)
Read
Alliance Semiconductor
D(A2)
Suspend
D(A 2 )
Write
D(A2Ý01)
D(A 2Ý01 )
Burst
Write
ADV
ADSC LOADS NEW ADDRESS
D(A2Ý01)
®
D(A 2Ý01 )
Suspend
Write
D(A2Ý10)
D(A 2Ý10 )
Burst
Write
ADV
D(A2Ý11)
D(A 2Ý11 )
Burst
Write
ADV
D(A3)
A3
t
ADSCS
t
ADVS
t
D(A 3 )
Write
t
DS
AS7C251MPFS32A
AS7C251MPFS36A
WS
D(A3Ý01)
D(A 3Ý01 )
Burst
Write
t
t
ADSCH
t
ADVH
WH
t
DH
D(A3Ý10)
D(A 3Ý10 )
12 of 19
Burst
Write
ADV