W9725G6JB-25 Winbond Electronics, W9725G6JB-25 Datasheet - Page 44

• Manufacturer Part Number: W9725G6JB-25
• Description: IC DDR2-800 SDRAM 256MB 84WBGA
• Manufacturer: Winbond Electronics

Specifications of W9725G6JB-25

• Format - Memory: RAM
• Memory Type: DDR2 SDRAM
• Memory Size: 256M (16Mx16)
• Speed: 2.5ns
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.9 V
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 84-WBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AC Characteristics and Operating Condition for -18 speed grade, continued
t
t
t
DS(base)
DH(base)
t
t
t
t
LZ(DQS)
t
t
t
t
AONPD
t
t
t
t
t
XARDS
t
t
AOFPD
t
SYM.
t
DH(ref)
t
LZ(DQ)
t
DELAY
DS(ref)
WPRE
t
WPST
RPRE
t
XSNR
XSRD
XARD
AOND
t
AOFD
ANPD
t
RPST
DIPW
t
AXPD
MOD
t
QHS
t
AON
MRD
t
t
AOF
t
OIT
QH
HP
XP
HZ
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/ 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
Bin(CL-t
SPEED GRADE
PARAMETER
RCD
-t
RP)
- 44 -
t
Min. (t
IS
2 x t
t
t
+t
t
t
AC,min + 2
AC,min + 2
HP
t
RFC
t
CL(abs)
10 - AL
t
t
CK(avg)
AC,min
AC,min
AC,min
MIN.
0.35
0.35
200
200
200
0.4
0.9
0.4
2.5
75
- t
11
AC,min
CH(abs)
DDR2-1066 (-18)
0
−
−
3
3
2
4
2
0
0
+ 10
QHS
Publication Release Date: Mar. 10, 2010
)
+t
7-7-7
IH
,
2.5 x t
t
AC,max + 2.575
3 x t
t
AC,max + 0.6
t
t
AC,max
AC,max
t
t
t
AC,max
AC,max
AC,max
MAX.
CK(avg) +
250
0.6
1.1
0.6
2.5
CK(avg) +
12
12
−
−
−
−
−
−
−
−
−
−
−
−
−
2
−
−
−
+1
+ 1
W9725G6JB
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
25
Revision A01
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