CBTU4411_3

© NXP B.V. 2009. All rights reserved.

Product data sheet

Rev. 03 — 12 October 2009

10 of 20

NXP Semiconductors

CBTU4411

11-bit DDR2 SDRAM MUX/bus switch with 12

Ω ON resistance

10. Dynamic characteristics

[1]

This parameter is not production tested.

[2]

Skew is not production tested.

[3]

Difference of rising edge propagation delay to falling edge propagation delay.

Fig 6.

Pull-down resistance versus voltage

350

425

400

375

450

(

Ω)

0

0.8

0.6

0.2

0.4

002aae863

Table 9.

Dynamic characteristics

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

propagation delay

from HPn or xDPn to xDPn or

HPn; Figure 9, Figure 13

[1] -

50

100

ps

driver enable delay to HIGH level

from Sn to HPn or xDPn

0.75

-

1.75

ns

driver enable delay to LOW level

from Sn to HPn or xDPn

0.75

-

1.75

ns

driver disable delay from HIGH level from Sn to HPn or xDPn

0.75

-

1.75

ns

driver disable delay from LOW level

from Sn to HPn or xDPn

0.75

-

1.75

ns

output skew time

from any output to any output;

Figure 12

[2] -

2530ps

edge skew time

Figure 11

[2][3] -

2530ps