GM71V17403C-5 Hynix Semiconductor, GM71V17403C-5 Datasheet - Page 8

• Manufacturer Part Number: GM71V17403C-5
• Description: 4/194/304 WORDS x 4 BIT CMOS DYNAMIC RAM
• Manufacturer: Hynix Semiconductor

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