tPHZ

tPLZ

tPZL

tPZH

3 V

0 V

Output

Control

(low-level

enabling)

Waveform 1

Waveform 2

≈1.5 V

VOH – 0.5 V

VOL + 0.5 V

≈1.5 V

1.5 V

1.5 V

1.5 V

1.5 V

VOH

VOL

10

SN5414, SN54LS14, SN7414, SN74LS14

SDLS049C – DECEMBER 1983 – REVISED NOVEMBER 2016

www.ti.com

Product Folder Links: SN5414 SN54LS14 SN7414 SN74LS14

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Copyright © 1983–2016, Texas Instruments Incorporated

Series SN5414 and SN7414 Devices (continued)

A.

CL includes probe and jig capacitance.

B.

All diodes are 1N3064 or equivalent.

C.

Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output

control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the

output control.

D.

S1 and S2 are closed for tPLH, tPHL, tPHZ, and tPLZ; S1 is open and S2 is closed for tPZH; S1 is closed and S2 is open

for tPZL.

E.

All input pulses are supplied by generators having the following characteristics: PRR

≤ 1 MHz, ZO ≈ 50 Ω ; tr and tf ≤ 7

ns for Series SN5414 and SN7414 devices and tr and tf ≤ 2.5 ns for Series SN54S14 and SN74S14 devices.

F.

The outputs are measured one at a time with one input transition per measurement.

Figure 20. Voltage Waveforms Enable and Disable Times, 3-State Outputs