HY[B/E]18L256169BF-7.5
256-Mbit Mobile-RAM
Functional Description
Table 7
Inputs Timing Parameters
Parameter
Symbol
tCK
- 7.5
Unit
Notes
—
min.
7.5
9.5
—
max.
—
—
133
105
—
—
—
—
Clock cycle time
Clock frequency
CL = 3
CL = 2
CL = 3
CL = 2
ns
ns
MHz
MHz
ns
ns
ns
ns
fCK
—
—
Clock high-level width
Clock low-level width
Address and command input setup time
Address and command input hold time
tCH
tCL
tIS
2.5
2.5
1.5
0.5
—
—
—
—
tIH
2.4.1
NO OPERATION (NOP)
The NO OPERATION (NOP) command is used to
perform a NOP to a Mobile-RAM which is selected (CS
= LOW). This prevents unwanted commands from
being registered during idle states. Operations already
in progress are not affected.
#,+
#+%
#3
ꢁ(IGHꢂ
2!3
#!3
7%
!ꢃꢄ!ꢅꢆ
"!ꢃꢇ"!ꢅ
ꢀ $ONgT #ARE
Figure 6
No Operation Command
2.4.2
DESELECT
The DESELECT function (CS = HIGH) prevents new commands from being executed by the Mobile-RAM. The
Mobile-RAM is effectively deselected. Operations already in progress are not affected.
Data Sheet
14
Rev. 1.02, 2006-12
02032006-MP0M-7FQG
QIMONDA [ QIMONDA AG ]
