Aeroflex Circuit Technology

SCDCT1496 REV A 3/22/00 Plainview NY (516) 694-6700

4

Sync Bit, WI Bit, 4 Bit SIS/ SOS Input & 32 Bit Parallel Word Input

Logic High Input Current

Logic Low Input Current 3/

DC Supply Currents

590mA max

Notes:

1/ and 2/ The total loads on these outputpairs (1 & 2) must be matched to within 15pF in order to

maintain signal skews between the lines of < 5nSec maximum.

3/ Current out of a terminal is given as a negative value.

4/ Maximum total capacitance loads allowable on these pins are:

AC Electrical Characteristics

Symbol

Parameter / Condition

Min

Max

Unit

T1

Stable input data setup time prior to Sys Clr/ Load rising edge

40

-

ns

T2

Stable input data hold time after Sys Clr/ Load rising edge

20

-

ns

PW1

Sys Clr/ Load pulsewidth

50

-

ns

T3

Sys Clr/ Load disable to Encoder Enable pulse

40

-

ns

PW2

Encoder Enable pulsewidth

100

400

ns

T4

Encoder Enable rising edge to TX Inhibit disable (thruput delay)

30

140

ns

T5

Transmit/ Self Test selection to TX Inhibit disable set-up time

50

-

ns

T6

TX Inhibit disable to output data delay

(Transmit/ Self Test = high)

-

10

ns

T7

DATA Output to DATA output delay

-

5

ns

PW3

DATA and DATA output half-bit pulsewidth

47

53

ns

PW4

DATA and DATA output bit pulsewidth

97

103

ns

T8

-

10

ns

T9

-

5

ns

PW5

47

53

ns

PW6

97

103

ns

T10

End of output DATA, DATA, DATAst or DATAst to TX Inhibit enable

-

10

ns

T11

TX Inhibit enable to next Transmit/ Self Test selection

50

-

ns

DC Electrical Characteristics (con’t)

SYMBOL

PARAMETER

LIMIT

DATA, DATA

40 pF max

TX INHIBIT

45 pF max

DATAst & DATAst

50 pF max