W972GG8JB-25 datasheet(5/87 Pages) WINBOND

Part #	W972GG8JB-25

Description	32M x 8 BANKS x 8 BIT DDR2 SDRAM

Download	87 Pages

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Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

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W972GG8JB

Publication Release Date: Dec. 03, 2012

- 5 -

Revision A03

4.

KEY PARAMETERS

SYM.

SPEED GRADE

DDR2-1066

DDR2-800

DDR2-667

Bin(CL-tRCD-tRP)

7-7-7

5-5-5/6-6-6

5-5-5

Part Number Extension

-18

-25/25I

-3

tCK(avg)

Average clock period

@CL = 7

Min.

1.875 nS



Max.

7.5 nS



@CL = 6

Min.

2.5 nS



Max.

7.5 nS

8 nS



@CL = 5

Min.

3 nS

2.5 nS

3 nS

Max.

7.5 nS

8 nS

@CL = 4

Min.

3.75 nS

Max.

7.5 nS

8 nS

@CL = 3

Min.



5 nS

Max.



8 nS

tRCD

Active to Read/Write Command Delay Time

Min.

13.125 nS

12.5 nS

15 nS

tRP

Precharge to Active Command Period

Min.

13.125 nS

12.5 nS

15 nS

tRC

Active to Ref/Active Command Period

Min.

58.125 nS

57.5 nS

60 nS

tRAS

Active to Precharge Command Period

Min.

45 nS

IDD0

Operating one bank active-precharge current

Max.

85 mA

72 mA

69 mA

IDD1

Operating one bank active-read-precharge current

Max.

85 mA

80 mA

75 mA

IDD4R

Operating burst read current

Max.

165 mA

135 mA

120 mA

IDD4W

Operating burst write current

Max.

145 mA

120 mA

110 mA

IDD5B

Burst refresh current

Max.

175 mA

160 mA

150 mA

IDD6

Self refresh current (TCASE

≤ 85°C)

Max.

12 mA

IDD7

Operating bank interleave read current

Max.

220 mA

200 mA

180 mA

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W972GG8JB-25 Datasheet(PDF) 5 Page - Winbond

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