Datasheet > V58C265164S

V58C265164S

更新时间： 2022-11-27 16:17:42

品牌	Logo	应用领域
MOSEL		动态存储器双倍数据速率
页数	文件大小	规格书
44页	451K
描述
64 Mbit DDR SDRAM 2.5 VOLT 4M X 16

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V58C265164S 数据手册

MOSEL VITELIC

V58C265164S

Mode Register Set Timing

MRD

CK, CK

Pre- All

MRS/EMRS

ANY

Command

Mode Register set (MRS) or Extended Mode Register Set (EMRS) can be issued only when all banks are in the idle state.

If a MRS command is issued to reset the DLL, then an additional 200 clocks must occur prior to issuing any new command

to allow time for the DLL to lock onto the clock.

Burst Mode Operation

Burst Mode Operation is used to provide a constant flow of data to memory locations (Write cycle), or from

memory locations (Read cycle). Two parameters define how the burst mode will operate: burst sequence and

burst length. These parameters are programmable and are determined by address bits A —A during the

Mode Register Set command. Burst type defines the sequence in which the burst data will be delivered or

stored to the SDRAM. Two types of burst sequence are supported: sequential and interleave. The burst

length controls the number of bits that will be output after a Read command, or the number of bits to be input

after a Write command. The burst length can be programmed to values of 2, 4, or 8. See the Burst Length

and Sequence table below for programming information.

Burst Length and Sequence

Burst Length

Starting Length (A , A , A )

Sequential Mode

0, 1

Interleave Mode

0, 1

xx0

xx1

x00

x01

x10

x11

000

001

010

011

100

101

110

111

1, 0

0, 1, 2, 3

1, 2, 3, 0

1, 0, 3, 2

2, 3, 0, 1

3, 0, 1, 2

3, 2, 1, 0

0,1, 2, 3, 4, 5, 6, 7

1, 2, 3, 4, 5, 6, 7, 0

2, 3, 4, 5, 6, 7, 0, 1

3, 4, 5, 6, 7, 0, 1, 2

4, 5, 6, 7, 0, 1, 2, 3

5, 6, 7, 0, 1, 2, 3, 4

6, 7, 0, 1, 2, 3, 4, 5, 6

7, 0, 1, 2, 3, 4, 5, 6

0,1, 2, 3, 4, 5, 6, 7

1, 0, 3, 2, 5, 4, 7, 6

2, 3, 0, 1, 6, 7, 4, 5

3, 2, 1, 0, 7, 6, 5, 4

4, 5, 6, 7, 0, 1, 2, 3

5, 4, 7, 6, 1, 0, 3, 2

6, 7, 4, 5, 2, 3, 0, 1

7, 6, 5, 4, 3, 2, 1, 0

V58C265164S Rev. 1.7 August 2001

1...4 5 678 9 10...44

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