74ALVC244 View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

74ALVC244

Octal buffer/line driver; 3-state

NXP Semiconductors. 

Nexperia

74ALVC244

Octal buffer/line driver; 3-state

10 Dynamic characteristics

Table 7. Dynamic characteristics

Voltages are referenced to GND (ground = 0 V). For test circuit, see Figure 9.

Symbol Parameter

Conditions

tpd

propagation delay nAn to nYn; see Figure 7

VCC = 1.65 V to 1.95 V

VCC = 2.3 V to 2.7 V

VCC = 2.7 V

VCC = 3.0 V to 3.6 V

ten

enable time

nOE to nYn; see Figure 8

VCC = 1.65 V to 1.95 V

VCC = 2.3 V to 2.7 V

VCC = 2.7 V

VCC = 3.0 V to 3.6 V

tdis

disable time

nOE to nYn; see Figure 8

VCC = 1.65 V to 1.95 V

VCC = 2.3 V to 2.7 V

VCC = 2.7 V

VCC = 3.0 V to 3.6 V

CPD

power dissipation

per buffer; VI = GND to VCC; VCC = 3.3 V

capacitance

Tamb = -40 °C to +85 °C

Min

Typ [1]

Max

Unit

[2]

1.0

2.7

4.4 ns

1.0

2.0

3.1 ns

1.0

2.3

3.1 ns

1.0

2.2

2.8 ns

[3]

1.0

3.4

6.9 ns

1.0

2.6

5.4 ns

1.0

3.2

5.3 ns

1.0

2.5

4.5 ns

[4]

1.0

3.8

5.9 ns

1.0

2.2

4.1 ns

1.0

3.0

4.4 ns

1.0

2.9

4.2 ns

[5]

-

20

-

pF

[1] Typical values are measured at Tamb = 25 °C

Typical values for VCC = 1.65 V to 1.95 V are measured at VCC = 1.8 V

Typical values for VCC = 2.3 V to 2.7 V are measured at VCC = 2.5 V

Typical values for VCC = 3.0 V to 3.6 V are measured at VCC = 3.3 V

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

[3] ten is the same as tPZH and tPZL.

[4] tdis is the same as tPHZ and tPLZ.

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

PD = CPD x VCC2 x fi x N + Σ(CL x VCC2 x fo) where:

fi = input frequency in MHz

fo = output frequency in MHz

CL = output load capacitance in pF

VCC = supply voltage in Volt

N = number of inputs switching

Σ(CL x VCC2 x fo) = sum of the outputs

74ALVC244

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 4 — 10 October 2017

© Nexperia B.V. 2017. All rights reserved.

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