V436632R24VL datasheet(4/12 Pages) MOSEL

4 / 12 page

V436632R24V(L) Rev. 1.0 October 2001

MOSEL VITELIC

V436632R24V(L)

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

writtenintothe 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

Number of SPD bytes

128

Total bytes in Serial PD

256

Memory Type

SDRAM

040404

Number of Row Addresses (without BS bits)

Number of Column Addresses (for x16

SDRAM)

090909

Number of DIMM Banks

Module Data Width

Module Data Width (continued)

Module Interface Levels

LVTTL

SDRAM Cycle Time at CL=3

7.5 ns/10.0 ns

SDRAM Access Time from Clock at CL=3

5.4 ns/6.0 ns

Dimm Config (Error Det/Corr.)

none

Refresh Rate/Type

Self-Refresh, 7.8

µs

828282

SDRAM width, Primary

x16

101010

Error Checking SDRAM Data Width

n/a / x8

MinimumClock DelayfromBacktoBackRan-

dom Column Address

tccd = 1 CLK

010101

Burst Length Supported

1, 2, 4, 8

Number of SDRAM Banks

Supported CAS Latencies

CL = 3, 2

CS Latencies

CS Latency = 0

010101

WE Latencies

WL = 0

010101

SDRAM DIMM Module Attributes

Non Buffered/Non Reg.

SDRAM Device Attributes: General

Vcc tol ± 10%

Minimum Clock Cycle Time at CAS Latency =

7.5 ns/10.0 ns

Maximum Data Access Time from Clock for

CL = 2

5.4 ns/6.0 ns

Minimum Clock Cycle Time at CL = 1

Not Supported

Maximum Data Access Time from Clock at CL

Not Supported

Minimum Row Precharge Time

15 ns/20 ns

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