TMS320LC2401AVFS datasheet(78/134 Pages) TI

78 / 134 page

TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A

TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A

DSP CONTROLLERS

SPRS145K − JULY 2000 − REVISED AUGUST 2005

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

0.4 V (VOL)

20%

2.4 V (VOH)

80%

Figure 24. Output Levels

Output transition times are specified as follows:

D For a high-to-low transition, the level at which the output is said to be no longer high is below 80% of the

total voltage range and lower and the level at which the output is said to be low is 20% of the total voltage

range and lower.

D For alow-to-high transition, the level at which the output is said to be no longer low is 20% of the total voltage

range and higher and the level at which the output is said to be high is 80% of the total voltage range and

higher.

Figure 25 shows the input levels.

0.8 V (VIL)

10%

2.0 V (VIH)

90%

Figure 25. Input Levels

Input transition times are specified as follows:

D For a high-to-low transition on an input signal, the level at which the input is said to be no longer high is 90%

of the total voltage range and lower and the level at which the input is said to be low is 10% of the total voltage

range and lower.

D For a low-to-high transition on an input signal, the level at which the input is said to be no longer low is 10%

of the total voltage range and higher and the level at which the input is said to be high is 90% of the total

voltage range and higher.

TMS320LC2401AVFS датащи(PDF) 78 Page - Texas Instruments