KMM5364103CK datasheet(7/17 Pages) SAMSUNG

7 / 17 page

DRAM MODULE

KMM5364103CK/CKG

KMM5364003CK/CKG

NOTES

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.

VIH(min) and V IL(max) are reference levels for measuring

timing of input signals. Transition times are measured

between V IH(min) and V IL(max) and are assumed to be 5ns

for all inputs.

Measured with a load equivalent to 2 TTL loads and 100pF.

Operation within the

tRCD(max) limit insures that tRAC(max)

can be met.

tRCD(max) is specified as a reference point only.

tRCD is greater than the specified tRCD(max) limit, then

access time is controlled exclusively by

tCAC.

Assumes that

tRCD

≥tRCD(max).

This parameter defines the time at which the output achieves

the open circuit condition and is not referenced to V OH or

VOL.

tWCS is non-restrictive operating parameter. It is included in

the

data

sheet

electrical

characteristic s

only.

tWCS

≥tWCS(min), the cycle is an early write cycle and the

data out pin will remain high impedance for the duration of

the cycle.

Either

tRCH or tRRH must be satisfied for a read cycle.

These parameter are referenced to the CAS leading edge in

early write cycles.

Operation within the

tRAD(max) limit insures that tRAC(max)

can be met.

tRAD(max) is specified as reference point only. If

tRAD is greater than the specified tRAD(max) limit, then

access time is controlled by

tAA.

In order to hold the address latched by the first

CAS going

low, the parameter

tCLCH must be met.

Test condition : Vih/Vil=2.4/0.8V, V oh/Vol=2.4/0.4V, Output loading CL=100pF

Parameter

Symbol

-5

-6

Unit

Note

Min

Max

Min

Max

Access time from CAS precharge

tCPA

Fast page mode cycle time

tPC

CAS precharge time(Fast page cycle)

tCP

RAS pulse width(Fast page cycle)

tRASP

200K

W to RAS precharge time(C-B-R refresh)

tWRP

W to RAS hold time(C-B-R refresh)

tWRH

Hold time CAS low to CAS high

tCLCH

AC CHARACTERISTICS (0

°C≤TA≤70°C, VCC=5.0V±10%. See notes 1,2.)

10.

11.

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