DP84902MS datasheet(10/16 Pages) NSC

10 / 16 page

AC Electrical CharacteristicsGeneral are guaranteed over operating conditions (see table) unless

otherwise specified

Symbol

Parameter

Min

Typ

Max

Units

Test

(Note 1)

tECLON

ECL Section Turn On Time wrt CRLS pins

(Note B)

(positive edge) (see

Figures 65 and 7 ) (Note 2)

tECLOFF

ECL Section Turn Off Time wrt CRLS pins

(Note B)

(positive edge) (see

Figures 65 and 10 ) (Note 3)

tWRTON

ECL Output Enabling Time wrt WG Positive Edge

(Note A)

(see

Figure 65 )

tWRTOFF

ECL Output Disabling Time wrt WG

(Note A)

negative edge (see

Figure 65 )

Note 1

Typical values are specified at 25 C and 5V supply

Note 2

The start and stop measurement voltage points are 13V

Note 3

The start measurement voltage point is 13V and the stop measurement voltage point is VOL a 03V

Note A

This parameter is guaranteed by outgoing testing

Note B

The limit values have been determined by characterization data No outgoing test are performed

TLF11963 – 7

Note 1

For tECLON the ECL output mode is selected in the control register (see Table I)

Note 2

For tECLOFF the power down mode is selected in the control register (see Table I)

FIGURE 65 ECL Code Write Timing Diagram

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