W9751G6KB WINBOND [Winbond], W9751G6KB Datasheet - Page 46

• Manufacturer Part Number: W9751G6KB
• Description: 8M ? 4 BANKS ? 16 BIT DDR2 SDRAM
• Manufacturer: WINBOND [Winbond]

AC Characteristics and Operating Condition for -25/25I/-3 speed grades, continued
Notes: 1-3 and 45-47 apply to the entire table
t
t
t
DS(base)
DH(base)
t
LZ(DQS)
t
t
t
t
t
t
t
t
t
AONPD
t
t
LZ(DQ)
t
t
t
XARDS
t
AOFPD
t
t
SYM.
DS(ref)
DH(ref)
t
DELAY
WPRE
WPST
AOND
t
t
RPRE
t
XSNR
XSRD
XARD
t
AOFD
t
ANPD
AXPD
RPST
DIPW
MRD
MOD
t
t
QHS
t
AON
AOF
t
t
OIT
HP
QH
HZ
XP
Write preamble
Write postamble
Read preamble
Read postamble
DQ and DM input setup time
DQ and DM input hold time
DQ and DM input setup time
DQ and DM input hold time
DQ and DM input pulse width for each
input
Data-out high-impedance time from CLK/
DQS/ DQS -low-impedance time from
CLK/ CLK
DQ low-impedance time from CLK/ CLK
Clock half pulse width
Data hold skew factor
DQ/DQS output hold time from DQS
Exit Self Refresh to a non-Read command
Exit Self Refresh to a Read command
Exit precharge power down to any
command
Exit active power down to Read command
Exit active power down to Read command
(slow exit, lower power)
ODT turn-on delay
ODT turn-on
ODT turn-on (Power Down mode)
ODT turn-off delay
ODT turn-off
ODT turn-off (Power Down mode)
ODT to power down Entry Latency
ODT Power Down Exit Latency
Mode Register Set command cycle time
MRS command to ODT update delay
OCD Drive mode output delay
Minimum time clocks remain ON after
CKE asynchronously drops LOW
CLK
Bin(CL-t
SPEED GRADE
PARAMETER
RCD
-t
RP)
t
IS
2 x t
t
t
t
t
(t
AC,min + 2
AC,min + 2
HP
t
RFC
+t
t
CL(abs)
t
t
CH(abs)
AC,min
8 - AL
AC,min
AC,min
MIN.
0.35
0.35
Min.
CK(avg)
125
250
250
200
0.4
0.9
0.4
2.5
t
50
AC,min
- t


2
2
2
3
8
2
0
0
IH
+ 10
5-5-5/6-6-6
QHS
- 46 -
DDR2-800
(-25/25I)
)
,
+
2.5 x t
2 x t
t
t
+
AC,max + 0.7
AC,max + 0.6
t
AC,max
t
AC,max
t
t
t
AC,max
AC,max
AC,max
MAX.
CK(avg) +
300
0.6
1.1
0.6
2.5

12
12











2



CK(avg)
+
+
1
1
Publication Release Date: Dec. 09, 2011
t
IS
2 x t
t
t
t
t
(t
AC,min + 2
AC,min + 2
HP
t
RFC
+t
t
CL(abs)
t
t
CH(abs)
7 - AL
AC,min
AC,min
AC,min
MIN.
0.35
0.35
Min.
CK(avg)
100
175
300
300
200
0.4
0.9
0.4
2.5
t
- t
AC,min
IH


2
2
2
3
8
2
0
0
+ 10
QHS
DDR2-667
)
5-5-5
,
(-3)
+
2.5 x t
2 x t
+
t
t
AC,max + 0.7
t
AC,max + 0.6
AC,max
t
AC,max
t
t
t
W9751G6KB
AC,max
AC,max
AC,max
MAX.
CK(avg) +
340
0.6
1.1
0.6
2.5
12
12












2



CK(avg)
+
+
1
1
UNITS
t
t
t
t
t
CK(avg)
CK(avg)
CK(avg)
CK(avg)
CK(avg)
n
n
n
n
n
n
n
n
n
pS
pS
pS
pS
pS
pS
pS
pS
pS
pS
nS
nS
nS
nS
nS
nS
nS
nS
CK
CK
CK
CK
CK
CK
CK
CK
CK
Revision A01
25
16,27,29,
17,27,29,
16,27,29,
17,27,29,
41,42,44
41,42,44
41,42,44
41,42,44
21,38,39
NOTES
14,36
14,37
15,35
15,35
15,35
18,19
20,35
21,39
12
32
33
34
23
18
20
23
23
22