Comparison Table of Switching Characteristics into “LS-Type” Load

(Continued)

V

Symbol

Parameter

Conditions

DS26C31T

DS26LS31C

Units

Typ

Max

Typ

Max

t

Differential Output Rise

C

and Fall Times

S1 Closed

4

6

ns

S2 Closed

t

PLZ

Output Disable Time

C

(Note 10)

S1 Closed

6

9

15

35

ns

S2 Open

t

PHZ

Output Disable Time

C

(Note 10)

S1 Open

4

7

15

25

ns

S2 Closed

t

PZL

Output Enable Time

C

S1 Closed

14

20

20

30

ns

S2 Open

t

PZH

Output Enable Time

C

S1 Open

11

17

20

30

ns

S2 Closed

Note 12: This table is provided for comparison purposes only. The values in this table for the DS26C31 reflect the performance of the device but are not tested or

guaranteed.

Note 13: ESD Rating:

HBM (1.5 k

Ω, 100 pF)

Inputs

≥ 1500V

Outputs

≥ 1000V

EIAJ (0

Ω, 200 pF) ≥ 350V

Logic Diagram

AC Test Circuit and Switching Time Waveforms

DS008574-2

DS008574-3

Note: C1 = C2 = C3 = 40 pF (Including Probe and Jig Capacitance), R1 = R2 = 50

Ω,R3 = 500Ω.

FIGURE 1. AC Test Circuit

www.national.com

4