w9425g6eh Winbond Electronics Corp America, w9425g6eh Datasheet - Page 53

• Manufacturer Part Number: w9425g6eh
• Description: 4 M ? 4 Banks ? 16 Bits Ddr Sdram
• Manufacturer: Winbond Electronics Corp America

13. REVISION HISTORY
Winbond products are not designed, intended, authorized or warranted for use as components
in systems or equipment intended for surgical implantation, atomic energy control
instruments, airplane or spaceship instruments, transportation instruments, traffic signal
instruments, combustion control instruments, or for other applications intended to support or
sustain life. Further more, Winbond products are not intended for applications wherein failure
of Winbond products could result or lead to a situation wherein personal injury, death or
severe property or environmental damage could occur.
Winbond customers using or selling these products for use in such applications do so at their
own risk and agree to fully indemnify Winbond for any damages resulting from such improper
use or sales.
VERSION
A01
A02
A03
A04
A05
Dec. 12, 2007
Feb. 21, 2008
Jan. 04, 2008
May 07, 2008
Apr. 11, 2008
DATE
26, 27, 29
30, 31, 32
33, 34
PAGE
5, 25
5, 26
5, 25
All
23
23
9
Important Notice
Formally data sheet
Revise -4 speed grade Max.I
from 10nS to 12nS
Change V
parameter value from 5mA to 3mA
Add figure to illustrate Initialization sequence after
power-up
Revise input setup/hold time t
skew rate dependency of AC characteristics table
Detailed descriptions of slew rate and
overshoot/undershoot is added in system AC
characteristics
190mA to 210mA
Revise -5 speed grade Max. CLK cycle time t
Modify -4 speed grade DC Characteristics I
Revise overshoot/undershoot pulse width
Before V
After V
Before
After
- 53 -
VIL (min.) =
IH (max.) =
VIL (min.) =
IH (max.) =
DDQ
max from V
V
-1.5V with a pulse width < 5 nS
DDQ
V
-1.2V with a pulse width < 3 nS
DDQ
DESCRIPTION
Publication Release Date:May 07, 2008
+1.5V with a pulse width < 5 nS
+1.2V with a pulse width < 3 nS
DD
DD4R/
to 2.7V
IS/
t
IH
W9425G6EH
I
DD4W
parameters with
value from
DD6
Revision A05
CK
value