GM71V17403C
GM71VS17403CL
Self Refresh Mode ( L-version )
Symbol
Parameter
RAS Pulse Width ( Self-refresh )
RAS Precharge Time ( Self-refresh )
CAS Hold Time ( Self-refresh )
GM71VS17403
CL-5
GM71VS17403
CL-6
GM71VS17403
CL-7
Unit
µs
ns
ns
Note
Min Max Min Max Min Max
t
RASS
t
RPS
t
CHS
100
90
-50
-
-
-
100
110
-50
-
-
-
100
130
-50
-
-
-
Notes:
1. AC Measurements assume t
T
= 2ns.
2. An initial pause of 200us is required after power up followed by a minimum of eight
initialization cycles (any combination of cycles containing RAS-only refresh or CAS-before-
RAS refresh). If the internal refresh counter is used, a minimum of eight CAS-before-RAS
refresh cycles are required.
3. Operation with the
t
RCD
(max) limit insures that
t
RAC
(max) can be met,
t
RCD
(max) is specified as a
reference point only; if
t
RCD
is greater than the specified
t
RCD
(max) limit, then access time is
controlled exclusively by
t
CAC
.
4. Operation with the
t
RAD
(max) limit insures that
t
RAC
(max) can be met,
t
RAD
(max) is specified as a
reference point only; if
t
RAD
is greater than the specified
t
RAD
(max) limit, then access time is
controlled exclusively by
t
AA
.
5. Either t
ODD
or t
CDD
must be satisfied.
6. Either t
DZO
or t
DZC
must be satisfied.
7. V
IH
(min) and V
IL
(max) are reference levels for measuring timing of input signals. Also,
transition times are measured between V
IH
(min) and V
IL
(max).
8. Assume that
t
RCD
<=
t
RCD
(max) and
t
RAD
<=
t
RAD
(max). If
t
RCD
or
t
RAD
is greater than the maximum
recommended value shown in this table,
t
RAC
exceeds the value shown.
9. Measured with a load circuit equivalent to 1 TTL loads and 100pF.
10. Assume that
t
RCD
>=
t
RCD
(max) and
t
RCD +
t
CAC
(max) >=
t
RAD +
t
AA
(max).
11. Assume that
t
RAD
>=
t
RAD
(max) and
t
RCD +
t
CAC
(max) <=
t
RAD +
t
AA
(max).
12. Either
t
RCH
or
t
RRH
must be satisfied for a read cycles.
13.
t
OFF
(max) and
t
OEZ
(max) define the time at which the outputs achieve the open circuit condition
and are not referenced to output voltage levels.
Rev 0.1 / Apr’01
HYNIX [ HYNIX SEMICONDUCTOR ]
