W9725G6JB Datasheet, PDF (5/87 Pages) Winbond – 4M  4 BANKS  16 BIT DDR2 SDRAM

W9725G6JB
3. KEY PARAMETERS
SPEED GRADE
DDR2-1066
DDR2-800
DDR2-667
SYM.
Bin(CL-tRCD-tRP)
7-7-7
5-5-5/6-6-6
5-5-5
Part Number Extension
-18
-25/25I/25A/25K
-3
Min. 1.875 nS


@CL = 7
Max.
7.5 nS


@CL = 6
Min.
Max.
2.5 nS
7.5 nS
2.5 nS

8 nS

tCK(avg) Average clock period
@CL = 5
Min.
Max.
3 nS
7.5 nS
2.5 nS
8 nS
3 nS
8 nS
@CL = 4
Min.
Max.
3.75 nS
7.5 nS
3.75 nS
8 nS
3.75 nS
8 nS
Min.

@CL = 3
Max.

5 nS
8 nS
5 nS
8 nS
tRCD
tREFI
Active to Read/Write Command Delay Time
-40°C ≤ TCASE ≤ 85°C
Average periodic
refresh Interval
0°C ≤ TCASE ≤ 85°C
85°C < TCASE ≤ 95°C
95°C < TCASE ≤ 105°C
Min.
Max.
13.125 nS
*²
7.8 μS*¹
3.9 μS*⁴
*⁶
12.5 nS
7.8 μS*^{2, 3}
7.8 μS*¹
3.9 μS*⁴
3.9 μS*⁵
15 nS
*²
7.8 μS*¹
3.9 μS*⁴
*⁶
tRP Precharge to Active Command Period
Min. 13.125 nS
12.5 nS
15 nS
tRC Active to Ref/Active Command Period
Min. 53.125 nS
52.5 nS
55 nS
tRAS Active to Precharge Command Period
Min.
40 nS
40 nS
40 nS
IDD0 Operating one bank active-precharge current
Max.
70 mA
60 mA
55 mA
IDD1 Operating one bank active-read-precharge current Max.
80 mA
70 mA
65 mA
IDD4R Operating burst read current
Max.
125 mA
105 mA
95 mA
IDD4W Operating burst write current
Max.
130 mA
110 mA
100 mA
IDD5B Burst refresh current
Max.
75 mA
70 mA
65 mA
IDD6 Self refresh current (TCASE ≤ 85°C)
Max.
6 mA
6 mA
6 mA
IDD7 Operating bank interleave read current
Max.
160 mA
135 mA
115 mA
Notes:
1. All speed grades support 0°C ≤ TCASE ≤ 85°C with full JEDEC AC and DC specifications.
2. For -18, -25 and -3 speed grades, -40°C ≤ TCASE < 0°C is not available.
3. 25I, 25A and 25K speed grades support -40°C ≤ TCASE ≤ 85°C with full JEDEC AC and DC specifications.
4. For all speed grade parts, TCASE is able to extend to 95°C with doubling Auto Refresh commands in frequency to a 32 mS
period ( tREFI = 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, TCASE is able to extend to 105°C with doubling Auto Refresh commands in frequency to a 32
mS period ( tREFI = 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 < TCASE ≤ 105°C is not available.
Publication Release Date: Nov. 29, 2011
-5-
Revision A02