V43658R04V datasheet(4/12 Pages) MOSEL

Part #	V43658R04V

Description	3.3 VOLT 8M x 64 UNBUFFERED SDRAM MODULE

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Manufacturer	MOSEL [Mosel Vitelic, Corp]

Direct Link	http://www.moselvitelic.com

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V43658R04V Rev. 1.0 March 2002

MOSEL VITELIC

V43658R04V

Serial Presence Detect Information

A serial presence detect storage device -

E2PROM - is assembled onto the module. Informa-

tion about the module configuration, speed, etc. is

written into the E2PROM device during module pro-

duction using a serial presence detect protocol (I2C

synchronous 2-wire bus)

SPD Table

Byte Num-

ber

Function Described

SPD Entry Value

Hex Value

-75PC

-75

-10PC

0

Number of SPD bytes

128

80

1

Total bytes in Serial PD

256

08

2

Memory Type

SDRAM

04

3

Number of Row Addresses (without BS bits)

12

0C

4

Number of Column Addresses (for x16

SDRAM)

9

090909

5

Number of DIMM Banks

1

01

6

Module Data Width

64

40

7

Module Data Width (continued)

0

00

8

Module Interface Levels

LVTTL

01

9

SDRAM Cycle Time at CL=3

7.5 ns/10.0 ns

75

A0

10

SDRAM Access Time from Clock at CL=3

5.4 ns/6.0 ns

54

60

11

Dimm Config (Error Det/Corr.)

none

00

12

Refresh Rate/Type

Self-Refresh, 15.6

µs

808080

13

SDRAM width, Primary

x16

10

14

Error Checking SDRAM Data Width

n/a / x8

00

15

Minimum Clock Delay from Back to Back Ran-

dom Column Address

tccd = 1 CLK

010101

16

Burst Length Supported

1, 2, 4, 8

0F

17

Number of SDRAM Banks

4

04

18

Supported CAS Latencies

CL = 3, 2

06

19

CS Latencies

CS Latency = 0

010101

20

WE Latencies

WL = 0

01

21

SDRAM DIMM Module Attributes

Non Buffered/Non Reg.

00

22

SDRAM Device Attributes: General

Vcc tol ± 10%

0E

23

Minimum Clock Cycle Time at CAS Latency =

2

7.5 ns/10.0 ns

75

A0

24

Maximum Data Access Time from Clock for

CL = 2

5.4 ns/6.0 ns

54

60

25

Minimum Clock Cycle Time at CL = 1

Not Supported

00

26

Maximum Data Access Time from Clock at CL

= 1

Not Supported

00

27

Minimum Row Precharge Time

15 ns/20 ns

0F

14

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