Nexperia

74LVC126A

Quad buffer/line driver with 5 V tolerant input/outputs; 3-state

-40 °C to +85 °C

-40 °C to +125 °C

Symbol Parameter

Conditions

Min

Typ [1]

Max

Min

Max

Unit

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

-

6.0

-

-

-

pF

VCC = 2.3 V to 2.7 V

-

9.3

-

-

-

pF

CPD

power dissipation

capacitance

VCC = 3.0 V to 3.6 V

-

12.2

-

-

-

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.

ten is the same as tPZL and tPZH.

tdis is the same as tPLZ and tPHZ.

[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

10.1. Waveforms and test circuit

mna237

tPHL

tPLH

VM

VM

nA input

nY output

GND

VI

VOH

VOL

Measurement points are given in Table 8.

VOL and VOH are typical output voltage levels that occur with the output load.

Fig. 6. The input nA to output nY propagation delays

mna684

tPLZ

tPHZ

outputs

disabled

outputs

enabled

VY

VX

outputs

enabled

output

LOW-to-OFF

OFF-to-LOW

output

HIGH-to-OFF

OFF-to-HIGH

nOE input

VI

VCC

VM

VOL

VOH

GND

GND

tPZL

tPZH

VM

VM

Measurement points are given in Table 8.

VOL and VOH are typical output voltage levels that occur with the output load.

Fig. 7. 3-state enable and disable times

74LVC126A

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 11 — 20 September 2021

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