w9425g6dh Winbond Electronics Corp America, w9425g6dh Datasheet - Page 53

• Manufacturer Part Number: w9425g6dh
• Description: 4m X 4 Banks X 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
P0
A0
A1
A2
A3
A4
A5
A6
A7
A8
Aug. 16, 2007
Sep. 11, 2007
Nov. 20, 2007
Mar. 06, 2007
Feb. 12, 2008
May 22, 2007
Jun. 21, 2007
Aug., 2006
Feb., 2007
May, 2005
DATE
3, 4, 22, 24,
4, 5, 23, 25,
4, 5, 23, 25,
29, 30, 31,
25, 26, 51
26, 27, 28
14, 50, 51
5, 26, 27,
25, 26
43, 44
32, 33
21, 50
PAGE
All
10
26
29
27
4
Important Notice
Modify t
Modify -75 , t
Modify CL 3 drawing
Modify -4 grade, t
Preliminary data sheet
Modify self refresh and auto refresh description
Add System AC Characteristics with slew rate and
Overshoot/Undershoot Specification detail describes
Add -6I/75I grade for Ta= -40 to 85°C and update
with package dimensions
Add -4 grade (DDR500) for T
Add max. values of t
revise t
and remove t
Revise Precharged/Active Power Down Mode
Add input clock frequency change during precharge
power down mode/self refresh mode
Add -6F grade
- 53 -
DAL
DQSCK
parameter, t
RC
DSSK
and t
=67.5nS
IS
Publication Release Date:Feb. 12, 2008
parameters in AC Characteristics
/t
DESCRIPTION
DQSS
CK
IH
= 0.6 nS, t
DAL
in key parameters table,
parameters
= (t
A
= 0 to 70°C
WR
W9425G6DH
WTR
/t
CK
) + (t
= 2 t
CK
RP
Revision A8
/t
CK
)