HYB18L256169BF Datasheet, PDF (14/48 Pages) Qimonda AG – 256-Mbit Mobile-RAM

HY[B/E]18L256169BF-7.5
256-Mbit Mobile-RAM
Functional Description
Table 7 Inputs Timing Parameters
Parameter
Symbol
Clock cycle time
CL = 3
t_CK
CL = 2
Clock frequency
CL = 3
f_CK
CL = 2
Clock high-level width
t_CH
Clock low-level width
t_CL
Address and command input setup time
t_IS
Address and command input hold time
t_IH
min.
7.5
9.5
—
—
2.5
2.5
1.5
0.5
- 7.5
max.
—
—
133
105
—
—
—
—
Unit Notes
ns
—
ns
MHz
—
MHz
ns
—
ns
—
ns
—
ns
—
2.4.1 NO OPERATION (NOP)
#, +
#+ % (IG H
#3
2! 3
#! 3
7%
! ! 
"! " !
$O NgT#A RE
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.
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