Nexperia

74ALVC245

Octal bus transceiver; 3-state

10. Dynamic characteristics

Table 7. Dynamic characteristics

Voltages are referenced to GND (ground = 0 V); for test circuit see Fig. 7.

-40 °C to +85 °C

Symbol Parameter

Conditions

Min

Typ [1]

Max

Unit

An to Bn; Bn to An; see Fig. 5

[2]

VCC = 1.65 V to 1.95 V

1.0

2.7

6.0

ns

VCC = 2.3 V to 2.7 V

1.0

2.1

3.5

ns

VCC = 2.7 V

1.0

3.0

3.6

ns

tpd

propagation delay

VCC = 3.0 V to 3.6 V

1.0

2.3

3.4

ns

OE to An; OE to Bn; see Fig. 6

[2]

VCC = 1.65 V to 1.95 V

1.0

4.0

8.6

ns

VCC = 2.3 V to 2.7 V

1.0

3.0

6.0

ns

VCC = 2.7 V

1.0

2.6

6.3

ns

ten

enable time

VCC = 3.0 V to 3.6 V

1.0

2.9

5.5

ns

OE to An; OE to Bn; see Fig. 6

[2]

VCC = 1.65 V to 1.95 V

1.0

4.4

8.0

ns

VCC = 2.3 V to 2.7 V

1.0

2.3

4.8

ns

VCC = 2.7 V

1.0

3.3

5.3

ns

tdis

disable time

VCC = 3.0 V to 3.6 V

1.0

3.2

5.5

ns

per buffer; VI = GND to VCC; VCC = 3.3 V [3]

outputs enabled

-

25

-

pF

CPD

power dissipation

capacitance

outputs disabled

-

1

-

pF

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

[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] 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 V;

N = number of inputs switching;

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

74ALVC245

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© Nexperia B.V. 2021. All rights reserved

Product data sheet

Rev. 3 — 30 April 2021

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