Preliminary Data Sheet M14805EJ2V0DS00

9

MC-4R64CPE6C

AC Electrical Specifications

Symbol

Parameter and Conditions

MIN.

TYP.

MAX.

Unit

Z

Module Impedance

25.2

28

30.8

Ω

Average clock delay from finger to finger of all RSL clock nets

-845

1.25

ns

(CTM, CTMN,CFM, and CFMN)

-745

1.25

-653

1.25

Propagation delay variation of RSL signals with respect to TPD

Note1,2

−21

+21

ps

an average clock delay

Note1

−100

+100

ps

Attenuation Limit

-845

12

%

-745

12

-653

8

Forward crosstalk coefficient

-845

2

%

(300ps input rise time 20% - 80%)

-745

2

-653

2

Backward crosstalk coefficient

-845

1.5

%

(300ps input rise time 20% - 80%)

-745

1.5

-653

1.5

DC Resistance Limit

-845

0.6

Ω

-745

0.6

-653

0.6

CTMN, CFM, and CFMN).

2. If the RIMM module meets the following specification, then it is compliant to the specification.

If the RIMM module does not meet these specifications, then the specification can be adjusted by the

“Adjusted

Adjusted

Symbol

Parameter and conditions

Adjusted MIN./MAX.

Absolute

Unit

MIN.

MAX.

+/

−30

+30

ps

Note N = Number of RDRAM devices installed on the RIMM module.

(MAX. Z0 and MIN. Z0 are obtained from the loaded (high impedance) impedance coupons of all RSL layers

on the module.)

•