AS4C256K16F0-25JC ALSC [Alliance Semiconductor Corporation], AS4C256K16F0-25JC Datasheet - Page 16

• Manufacturer Part Number: AS4C256K16F0-25JC
• Description: 5V 256K X 16 CMOS DRAM (Fast Page Mode)
• Manufacturer: ALSC [Alliance Semiconductor Corporation]

Fast page mode read waveform
Fast page mode byte read waveform
Upper I/O
Lower I/O
4/11/01; V.0.9.1
Address
Address
UCAS,
LCAS
RAS
I/O
UCAS
WE
LCAS
OE
RAS
WE
OE
t
ASR
t
t
CRP
CRP
t
ASR
Row
t
t
RCS
CRP
Row
t
t
t
RCD
RAH
t
RAD
t
RCD
t
RAC
RAD
t
RAC
t
Column 1
t
CLZ
t
AA
t
CSH
CAC
t
t
AR
RAH
t
t
t
ASC
CSH
RCH
Col Address
t
RCS
Alliance Semiconductor
t
CAP
t
t
AA
CP
t
t
t
PC
OEA
CAH
t
CAS
Data Out 1
t
t
CAS
OEA
t
t
t
CLZ
CAC
AA
Data Out
t
RCH
t
CAH
t
Column 2
t
t
t
RASP
OFF
OEZ
t
CLZ
CAC
t
t
CAS
RASP
Col Address
®
t
t
RCS
ASC
t
ASC
t
t
t
OEZ
OFF
CP
Data Out 2
t
t
t
CAP
PC
OEA
t
AA
Data Out
t
RCS
t
CLZ
t
t
t
RSH
CAS
CAC
t
CAH
Col Address
Column n
t
RCH
t
t
t
t
RSH
RAL
OFF
OEZ
t
t
CP
ASC
t
t
PC
t
RAL
RCS
t
t
RCH
t
OEA
OEA
t
CAP
t
Data Out
CAH
t
CAS
Data Out n
AS4C256K16FO
t
RRH
t
OEZ
t
OFF
t
RP
t
RPC
P. 16 of 25
t
t
RP
CRP