Nexperia

74LVC4245A

Octal dual supply translating transceiver; 3-state

-40 °C to +85 °C

-40 °C to +125 °C

Symbol Parameter

Conditions

VCC(B)

Min

Typ [1] Max

Min

Max

Unit

5 V bus: Bn to An;

VI = GND to VCC(A);

VCC(A) = 5.0 V

[3]

outputs enabled

-

-

17

-

-

-

pF

outputs disabled

-

-

5

-

-

-

pF

3 V bus: An to Bn;

VI = GND to VCC(B);

VCC(B) = 3.3 V

[3]

outputs enabled

-

-

17

-

-

-

pF

CPD

power

dissipation

capacitance

outputs disabled

-

-

5

-

-

-

pF

[1] Typical values are measured at Tamb = 25 °C, VCC(A) = 5.0 V, and VCC(B) = 2.7 V and 3.3 V respectively.

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

[3] 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

mna366

An, Bn

input

Bn, An

output

tPHL

tPLH

GND

VI

VM

VM

VOH

VOL

Measurement point are given in Table 8.

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

Fig. 6. Input (An, Bn) to output (Bn, An) propagation delays

74LVC4245A

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 13 — 27 August 2021

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