IS41LV16257 ISSI [Integrated Silicon Solution, Inc], IS41LV16257 Datasheet - Page 16

• Manufacturer Part Number: IS41LV16257
• Description: 256K x 16 (4-MBIT) DYNAMIC RAM WITH FAST PAGE MODE
• Manufacturer: ISSI [Integrated Silicon Solution, Inc]

CBR
CBR
IS41C16257
IS41LV16257
CBR
CBR
CBR
HIDDEN REFRESH CYCLE
16
Notes:
1. A Hidden Refresh may also be performed after a Write Cycle. In this case,
2. t
OFF
REFRESH CYCLE
UCAS/LCAS
UCAS/LCAS
ADDRESS
is referenced from rising edge of
RAS
OE
RAS
I/O
I/O
t
t
CRP
ASR
t
RPC
t
CP
Row
(Addresses;
(1)
t
RP
(
t
WE
CHR
t
t
RAH
RAD
RAS
t
= HIGH;
RCD
Open
WE
t
t
t
or
ASC
RAS
CSR
,
CAS
OE
t
AR
t
OE
, whichever occurs last.
RAS
t
Column
= DON'T CARE)
CLZ
t
RAC
t
= LOW)
RAL
t
OE
t
RPC
t
AA
t
CAC
t
Open
CAH
Integrated Silicon Solution, Inc. — 1-800-379-4774
t
t
RSH
ORD
t
t
RP
RP
WE
Valid Data
= LOW and
t
CSR
t
RAS
t
CHR
t
t
RAS
OFF
t
OE
CHR
(2)
= HIGH.
Don't Care
Open
t
OD
ISSI
DR004-1B
05/24/99
®