Nexperia

74LVC14A

Hex inverting Schmitt trigger with 5 V tolerant input

11. Dynamic characteristics

Table 7. Dynamic characteristics

Voltages are referenced to GND (ground = 0 V). For test circuit see Fig. 8.

-40 °C to +85 °C

-40 °C to +125 °C

Symbol Parameter

Conditions

Min

Typ [1] Max

Min

Max

Unit

nA to nY; see Fig. 7

[2]

VCC = 1.2 V

-

16

-

-

-

ns

VCC = 1.65 V to 1.95 V

1.0

6.1

12.7

1.0

14.7

ns

VCC = 2.3 V to 2.7 V

1.5

3.5

7.8

1.5

10.0

ns

VCC = 2.7 V

1.5

3.6

7.5

1.5

9.5

ns

tpd

propagation delay

VCC = 3.0 V to 3.6 V

1.0

3.2

6.4

1.0

8.0

ns

tsk(o)

output skew time

VCC = 3.0 V to 3.6 V

[3]

-

-

1.0

-

1.5

ns

per buffer; VI = GND to VCC

[4]

VCC = 1.65 V to 1.95 V

-

9.0

-

-

-

pF

VCC = 2.3 V to 2.7 V

-

12.5

-

-

-

pF

CPD

power dissipation

capacitance

VCC = 3.0 V to 3.6 V

-

15.6

-

-

-

pF

[1] Typical values are measured at Tamb = 25 °C and VCC = 1.2 V, 1.8 V, 2.5 V, 2.7 V, and 3.3 V respectively.

[2] tpd is the same as tPLH and tPHL.

[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.

[4] CPD is used to determine the dynamic power dissipation (PD in μW).

PD = CPD × VCC 2 × fi × N + Σ(CL × VCC 2 × fo) where:

fi = input frequency in MHz; fo = output frequency in MHz

CL = output load capacitance in pF

VCC = supply voltage in Volts

N = number of inputs switching

Σ(CL × VCC 2 × fo) = sum of the outputs.

11.1. Waveforms and test circuit

mna344

tPHL

tPLH

VM

VM

VM

VM

nA input

nY output

GND

VI

VOH

VOL

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. 7. Propagation delay input (nA) to output (nY)

74LVC14A

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 9 — 20 September 2021

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