KMM5324000CK SAMSUNG [Samsung semiconductor], KMM5324000CK Datasheet - Page 5

• Manufacturer Part Number: KMM5324000CK
• Description: 4M x 32 DRAM SIMM using 4Mx4, 4K/2K Refresh, 5V
• Manufacturer: SAMSUNG [Samsung semiconductor]

DRAM MODULE
AC CHARACTERISTICS
Test condition : V
NOTES
Access time from CAS precharge
Fast page mode cycle time
CAS precharge time(Fast page cycle)
RAS pulse width(Fast page cycle)
W to RAS precharge time(C-B-R refresh)
W to RAS hold time(C-B-R refresh)
CAS precharge(C-B-R counter test)
6.
1.
2.
3.
4.
5.
An initial pause of 200us is required after power-up followed
by any 8 RAS-only or CAS-before-RAS refresh cycles before
proper device operation is achieved.
V
timing of input signals. Transition times are measured
between V
for all inputs.
Measured with a load equivalent to 2 TTL loads and 100pF.
Operation within the
can be met.
If
access time is controlled exclusively by
Assumes that
This parameter defines the time at which the output achieves
the open circuit condition and is not referenced to V
V
IH
OL
t
(min) and V
RCD
.
is greater than the specified
ih
IH
/V
Parameter
(min) and V
t
RCD
il
t
=2.4/0.8V, V
RCD
IL
(max) is specified as a reference point only.
(max) are reference levels for measuring
t
RCD
t
RCD
IL
(max).
(max) and are assumed to be 5ns
(max) limit insures that
oh
(0 C T
/V
ol
=2.4/0.4V, Output loading CL=100pF
A
70 C, V
t
t
RCD
CAC
t
t
t
t
t
t
t
(max) limit, then
Symbol
CPA
PC
CP
RASP
WRP
WRH
CPT
.
CC
=5.0V 10%. See notes 1,2.)
t
RAC
(max)
OH
Min
or
35
10
50
10
10
20
10.
7.
9.
8.
-5
t
the data sheet as electrical characteristics only. If
t
out pin will remain high impedance for the duration of the
cycle.
Either
These parameter are referenced to the CAS leading edge in
early write cycles.
Operation within the
can be met.
t
access time is controlled by
WCS
WCS
RAD
200K
Max
30
is non-restrictive operating parameter. It is included in
is greater than the specified
t
t
WCS
RCH
(min), the cycle is an early write cycle and the data
or
t
RAD
t
RRH
(max) is specified as reference point only. If
Min
40
10
60
10
10
20
must be satisfied for a read cycle.
KMM5324000CK/CKG
KMM5324100CK/CKG
t
RAD
-6
(max) limit insures that
t
AA
200K
Max
.
35
t
RAD
Unit
ns
ns
ns
ns
ns
ns
ns
(max) limit, then
t
RAC
Note
3
(max)