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Intel® 6400/6402 Advanced Memory Buffer Datasheet

Electrical, Power, and Thermal

This chapter contains a description of the Intel 6400/6402 Advanced Memory Buffer

(AMB)’s electrical DC parameters, timing parameters, power considerations, and

thermal considerations.

4.1

Electrical DC Parameters

4.1.1

Absolute Maximum Ratings

Table 4-1 contains absolute maximum ratings over operating free-air temperature

range (see Note 1).

Notes:

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are

stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under

“recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods

may affect device reliability.

The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are

observed.This value is limited to 2.3 V maximum.

4.1.2

Operating DC Parameters

Table 4-2 contains the electrical DC parameters for the AMB part for normal operation.

Note:

There will also be a VTT termination supply at VDDR/2 available on the DIMM but does

not connect to the AMB.

Table 4-1.

Absolute Maximum Ratings Over Operating Free-Air Temperature Range

(See Note 1)

Symbol

Parameter

Min

Max

Unit

VDD

Supply voltage DRAM Interface

–0.5

+2.3

VIN (DDR2), VOUT (DDR2)

Voltage on any DDR2 interface pin relative to Vss

(See Notes 2 and 3)

–0.5

+2.3

IINK (VIN < 0 or VIN > VDD)

Input clamp current

+30

IOUTK (VOUT < 0 or VOUT > VDD)

Output clamp current

+30

IOUT (VOUT = 0 to VDD)

Continuous output current

+30

N/A

Continuous current through each VDD or GND

+100

VCC

Supply voltage for Core and High Speed Interface

–0.3

+1.75

Tstg

Storage temperature range

–55

+100

°C

Table 4-2.

AMB Operating DC Electrical Parameters

Parameter

AMB Mode

Units

Min

Typ

Max

VCC link / core

Volts

1.455

1.5

1.575

VDD

Volts

1.7

1.8

1.9

VDDSPD

Volts

3.0

3.3

3.6

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