参数资料
型号: W9725G6JB25I
厂商: Winbond Electronics
文件页数: 5/87页
文件大小: 0K
描述: IC DDR2 SDRAM 256MBIT 84WBGA
标准包装: 200
格式 - 存储器: RAM
存储器类型: DDR2 SDRAM
存储容量: 256M(16Mx16)
速度: 2.5ns
接口: 并联
电源电压: 1.7 V ~ 1.9 V
工作温度: -40°C ~ 95°C
封装/外壳: 84-TFBGA
供应商设备封装: 84-WBGA(8x12.5)
包装: 托盘
W9725G6JB
3. KEY PARAMETERS
SPEED GRADE
DDR2-1066
DDR2-800
DDR2-667
SYM.
Bin(CL-tRCD-tRP)
Part Number Extension
7-7-7
-18
5-5-5/6-6-6
-25/25I/25A/25K
5-5-5
-3
@CL = 7
@CL = 6
Min.
Max.
Min.
Max.
1.875 nS
7.5 nS
2.5 nS
7.5 nS
?
?
2.5 nS
8 nS
?
?
?
?
t CK(avg)
Average clock period
@CL = 5
@CL = 4
@CL = 3
Min.
Max.
Min.
Max.
Min.
Max.
3 nS
7.5 nS
3.75 nS
7.5 nS
?
?
2.5 nS
8 nS
3.75 nS
8 nS
5 nS
8 nS
3 nS
8 nS
3.75 nS
8 nS
5 nS
8 nS
? *
7.8 μ S*
? *
t RCD
Active to Read/Write Command Delay Time
-40°C ≤ T CASE ≤ 85°C
Min.
13.125 nS
2
12.5 nS
2, 3
15 nS
2
7.8 μ S*
3.9 μ S*
7.8 μ S*
3.9 μ S*
7.8 μ S*
3.9 μ S*
t REFI
Average periodic
refresh Interval
0°C ≤ T CASE ≤ 85°C
85°C < T CASE ≤ 95°C
Max.
1
4
1
4
1
4
? *
3.9 μ S*
? *
95°C < T CASE ≤ 105°C
6
5
6
t RP
t RC
t RAS
I DD0
I DD1
I DD4R
I DD4W
I DD5B
I DD6
I DD7
Precharge to Active Command Period
Active to Ref/Active Command Period
Active to Precharge Command Period
Operating one bank active-precharge current
Operating one bank active-read-precharge current
Operating burst read current
Operating burst write current
Burst refresh current
Self refresh current (T CASE ≤ 85°C)
Operating bank interleave read current
Min.
Min.
Min.
Max.
Max.
Max.
Max.
Max.
Max.
Max.
13.125 nS
53.125 nS
40 nS
70 mA
80 mA
125 mA
130 mA
75 mA
6 mA
160 mA
12.5 nS
52.5 nS
40 nS
60 mA
70 mA
105 mA
110 mA
70 mA
6 mA
135 mA
15 nS
55 nS
40 nS
55 mA
65 mA
95 mA
100 mA
65 mA
6 mA
115 mA
Notes:
1.
2.
3.
4.
All speed grades support 0°C ≤ T CASE ≤ 85°C with full JEDEC AC and DC specifications.
For -18, -25 and -3 speed grades, -40°C ≤ T CASE < 0°C is not available.
25I, 25A and 25K speed grades support -40°C ≤ T CASE ≤ 85°C with full JEDEC AC and DC specifications.
For all speed grade parts, T CASE is able to extend to 95°C with doubling Auto Refresh commands in frequency to a 32 mS
period ( t REFI = 3.9 μS) and to enter to Self Refresh mode at this high temperature range via A7 "1" on EMR (2).
5. For 25K automotive speed grade, T CASE is able to extend to 105°C with doubling Auto Refresh commands in frequency to a 32
mS period ( t REFI = 3.9 μS) and to enter to Self Refresh mode at this high temperature range via A7 "1" on EMR (2).
6. For -18, -25, 25I, 25A and -3 speed grades, 95°C < T CASE ≤ 105°C is not available.
Publication Release Date: Nov. 29, 2011
-5-
Revision A02
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