AS4C256K16F0-25JC ALSC [Alliance Semiconductor Corporation], AS4C256K16F0-25JC Datasheet - Page 20

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

Hidden refresh waveform (read)
Hidden refresh waveform (write)
4/11/01; V.0.9.1
Address
Address
UCAS,
LCAS
RAS
CAS
I/O
RAS
I/O
WE
WE
OE
OE
t
ASR
t
CRP
t
RAH
t
ASR
t
Row
RAH
Row Address
t
CRP
t
RAD
t
RCD
t
RAC
t
t
RCS
RAD
t
DS
t
ASC
t
t
WCS
RCD
t
t
RAS
WCR
t
t
t
AR
AA
AR
t
DHR
Col Address
Data In
t
Col Address
ASC
t
WP
t
t
RC
RAS
t
RSH
t
CLZ
t
t
CAC
OEA
Alliance Semiconductor
t
RWL
t
RAL
t
t
RC
RSH
t
CAH
t
WCH
Data Out
t
DH
t
RRH
t
PR
®
t
RP
t
CHR
t
RAS
t
OEZ
t
OFF
t
RC
t
CRP
AS4C256K16FO
t
PR
P. 20 of 25