W9725G6JB-25 Winbond Electronics, W9725G6JB-25 Datasheet - Page 43

• 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

9.11 AC Characteristics
9.11.1 AC Characteristics and Operating Condition for -18 speed grade
t
t
t
t
t
t
IS (base)
IH (base)
CH(avg)
CK(avg)
DQSCK
t
t
t
CL(avg)
t
t
SYM.
t
DQSQ
IS (ref)
IH (ref)
t
t
t
t
t
t
DQSS
DQSH
t
t
t
t
t
t
DQSL
t
t
t
WTR
RCD
REFI
CCD
RRD
FAW
t
t
RAS
RFC
t
CKE
RTP
DSS
DSH
DAL
IPW
WR
RP
RC
AC
Active to Read/Write Command Delay Time
Precharge to Active Command Period
Active to Ref/Active Command Period
Active to Precharge Command Period
Auto Refresh to Active/Auto Refresh command period
Average periodic
refresh Interval
Average clock period
Average clock high pulse width
Average clock low pulse width
DQ output access time from CLK/ CLK
DQS output access time from CLK / CLK
DQS-DQ skew for DQS & associated DQ signals
CKE minimum high and low pulse width
Active to active command period for 1KB page size
Four Activate Window for 1KB page size
Write recovery time
Auto-precharge write recovery + precharge time
Internal Write to Read command delay
Internal Read to Precharge command delay
Address and control input setup time
Address and control input hold time
Address and control input setup time
Address and control input hold time
Address and control input pulse width for each input
DQS latching rising transitions to associated clock edges
DQS falling edge to CLK setup time
DQS falling edge hold time from CLK
DQS input high pulse width
DQS input low pulse width
CAS to CAS command delay
Bin(CL-t
SPEED GRADE
PARAMETER
0 ° C ≦ T
85 ° C
RCD
<
t
t
t
t
-t
CK(avg)
CK(avg)
CK(avg)
CK(avg)
T
RP)
CASE
CASE
@ CL=4
@ CL=5
@ CL=6
@ CL=7
≦ 95 ° C
≦ 85 ° C
- 43 -
WR + tn
13.125
13.125
53.125
1.875
3.75
MIN.
-0.25
2.5
0.48
0.48
-350
-325
7.5
0.35
0.35
40
75
35
15
125
200
325
325
7.5
7.5
0.6
0.2
0.2
2
3
3
DDR2-1066 (-18)
−
−
−
Publication Release Date: Mar. 10, 2010
RP
7-7-7
70000
MAX.
7.5
7.5
7.5
7.5
0.52
0.52
0.25
350
325
175
7.8
3.9
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
W9725G6JB
t
t
t
t
t
t
t
t
UNIT
CK(avg)
CK(avg)
CK(avg)
CK(avg)
CK(avg)
CK(avg)
CK(avg)
CK(avg)
n
n
n
μS
μS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
pS
pS
pS
nS
nS
nS
nS
pS
pS
pS
pS
CK
CK
CK
25
Revision A01
40,42,43
40,42,43
40,42,43
40,42,43
NOTES
10,26,
11,26,
10,26,
11,26,
30,31
30,31
30,31
30,31
30,31
30,31
4,23
8,23
9,23
4,23
5,6
23
23
23
35
35
13
23
23
24
28
28
28
5
5
7