Semiconductor Group
9
HYM 322035S/GS-50/-60/-70
2M
×
32-Bit EDO-Module
Notes:
1) All voltages are referenced to
V
SS
.
2)
I
CC1
,
I
CC3
,
I
CC4
and
I
CC6
depend on cycle rate.
3)
I
CC1
and
I
CC4
depend on output loading. Specified values are obtained with the output open.
4) Address can be changed once or less while RAS = Vil. In case of ICC4 it can be changed once or less during
a hyper page mode (EDO) cycle.
5) An initial pause of 200
μ
s is required after power-up followed by 8 RAS cycles of which at least one cycle has
to be a refresh cycle, before proper device operation is achieved. In case of using the internal refresh counter,
a minimum of 8 CAS-before-RAS initialization cycles instead of 8 RAS cycles are required.
6) AC measurements assume
t
T
= 2 ns.
7)
V
I
H
(min.)
and
V
I
L (max.)
are reference levels for measuring timing of input signals. Transition times are also
measured between
V
I
H
and
V
I
L
.
8) Measured with a load equivalent to 2 TTL loads and 50 pF, (Vol = 0.8 V and Voh = 2.0 V)
.
9) Operation within the
t
limit ensures 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.)
t
CAC
.
10) Operation within the
t
)
limit ensures 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.)
t
AA
.
11) Either
t
RCH
or
t
RRH
must be satisfied for a read cycle.
12)
t
define the time at which the output achieves the open-circuit conditions and are not referenced to
output voltage levels.
t
OFF
is referenced from the rising edge of RAS or CAS, whichever occurs last.
13)
t
WCS
is not a restrictive operating parameter. This is included in the data sheet as electrical characteristics only.
If
t
WCS
>
t
WCS (min.)
, the cycle is an early write cycle and data out pin will remain open-circuit (high impedance)
through the entire cycle.
14) These parameters are referenced to the CAS leading edge.