Nexperia

74LVC02A

Quad 2-input NOR gate

10.1. Waveforms and test circuit

mna213

nA, nB input

nY output

tPHL

tPLH

VM

VM

VOL

VOH

GND

VI

VM = 1.5 V at VCC ≥ 2.7 V.

VM = 0.5 × VCC at VCC < 2.7 V.

VOL and VOH are typical output voltage levels that

occur with the output load.

Fig. 6. The input (nA, nB) to output (nY) propagation

delays

VM

VM

tW

tW

10 %

90 %

0 V

VI

VI

negative

pulse

positive

pulse

0 V

VM

VM

90 %

10 %

tf

tr

tr

tf

001aaf615

VCC

VI

VO

DUT

CL

RT

RL

PULSE

GENERATOR

Test data is given in Table 8.

Definitions for test circuit:

RL = Load resistance.

CL = Load capacitance including jig and probe

capacitance.

RT = Termination resistance should be equal to

output impedance Zo of the pulse generator.

Fig. 7. Test circuit for measuring switching times

Table 8. Test data

Input

Load

Supply voltage

VI

tr, tf

CL

RL

1.2 V

VCC

≤ 2 ns

30 pF

1 kΩ

1.65 V to 1.95 V

VCC

≤ 2 ns

30 pF

1 kΩ

2.3 V to 2.7 V

VCC

≤ 2 ns

30 pF

500 Ω

2.7 V

2.7 V

≤ 2.5 ns

50 pF

500 Ω

3.0 V to 3.6 V

2.7 V

≤ 2.5 ns

50 pF

500 Ω

74LVC02A

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 10 — 17 September 2021

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